diff DEPENDENCIES/generic/include/boost/phoenix/statement/detail/preprocessed/switch_30.hpp @ 16:2665513ce2d3

Add boost headers

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DEPENDENCIES/generic/include/boost/phoenix/statement/detail/preprocessed/switch_30.hpp	Tue Aug 05 11:11:38 2014 +0100
@@ -0,0 +1,1863 @@
+/*==============================================================================
+    Copyright (c) 2005-2010 Joel de Guzman
+    Copyright (c) 2010 Thomas Heller
+
+    Distributed under the Boost Software License, Version 1.0. (See accompanying
+    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+==============================================================================*/
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<2>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<2>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        1
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<3>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<3>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        2
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<4>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<4>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        3
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<5>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<5>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        4
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<6>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<6>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        5
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<7>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<7>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        6
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<8>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<8>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        7
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<9>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<9>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        8
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<10>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<10>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        9
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<11>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<11>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        10
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<12>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<12>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        11
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<13>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<13>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        12
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<14>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<14>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        13
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<15>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<15>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        14
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<16>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<16>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        15
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<17>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<17>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        16
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<18>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<18>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        17
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<19>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<19>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        18
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<20>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<20>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        19
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<21>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<21>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        20
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<22>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<22>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        21
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<23>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<23>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        22
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<24>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 23 >::type >::type case23; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case23 , 0 >::type >::type >::type case_label23;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label23::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 23>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<24>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        23
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<25>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 23 >::type >::type case23; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case23 , 0 >::type >::type >::type case_label23; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 24 >::type >::type case24; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case24 , 0 >::type >::type >::type case_label24;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label23::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 23>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label24::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 24>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<25>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 23 >::type >::type case23; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case23 , 0 >::type >::type >::type case_label23;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label23::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 23>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        24
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<26>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 23 >::type >::type case23; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case23 , 0 >::type >::type >::type case_label23; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 24 >::type >::type case24; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case24 , 0 >::type >::type >::type case_label24; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 25 >::type >::type case25; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case25 , 0 >::type >::type >::type case_label25;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label23::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 23>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label24::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 24>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label25::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 25>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<26>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 23 >::type >::type case23; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case23 , 0 >::type >::type >::type case_label23; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 24 >::type >::type case24; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case24 , 0 >::type >::type >::type case_label24;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label23::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 23>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label24::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 24>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        25
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<27>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 23 >::type >::type case23; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case23 , 0 >::type >::type >::type case_label23; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 24 >::type >::type case24; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case24 , 0 >::type >::type >::type case_label24; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 25 >::type >::type case25; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case25 , 0 >::type >::type >::type case_label25; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 26 >::type >::type case26; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case26 , 0 >::type >::type >::type case_label26;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label23::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 23>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label24::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 24>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label25::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 25>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label26::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 26>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<27>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 23 >::type >::type case23; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case23 , 0 >::type >::type >::type case_label23; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 24 >::type >::type case24; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case24 , 0 >::type >::type >::type case_label24; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 25 >::type >::type case25; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case25 , 0 >::type >::type >::type case_label25;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label23::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 23>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label24::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 24>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label25::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 25>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        26
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<28>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 23 >::type >::type case23; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case23 , 0 >::type >::type >::type case_label23; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 24 >::type >::type case24; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case24 , 0 >::type >::type >::type case_label24; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 25 >::type >::type case25; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case25 , 0 >::type >::type >::type case_label25; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 26 >::type >::type case26; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case26 , 0 >::type >::type >::type case_label26; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 27 >::type >::type case27; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case27 , 0 >::type >::type >::type case_label27;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label23::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 23>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label24::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 24>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label25::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 25>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label26::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 26>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label27::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 27>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<28>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 23 >::type >::type case23; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case23 , 0 >::type >::type >::type case_label23; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 24 >::type >::type case24; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case24 , 0 >::type >::type >::type case_label24; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 25 >::type >::type case25; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case25 , 0 >::type >::type >::type case_label25; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 26 >::type >::type case26; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case26 , 0 >::type >::type >::type case_label26;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label23::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 23>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label24::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 24>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label25::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 25>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label26::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 26>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        27
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<29>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 23 >::type >::type case23; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case23 , 0 >::type >::type >::type case_label23; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 24 >::type >::type case24; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case24 , 0 >::type >::type >::type case_label24; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 25 >::type >::type case25; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case25 , 0 >::type >::type >::type case_label25; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 26 >::type >::type case26; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case26 , 0 >::type >::type >::type case_label26; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 27 >::type >::type case27; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case27 , 0 >::type >::type >::type case_label27; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 28 >::type >::type case28; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case28 , 0 >::type >::type >::type case_label28;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label23::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 23>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label24::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 24>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label25::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 25>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label26::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 26>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label27::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 27>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label28::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 28>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<29>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 23 >::type >::type case23; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case23 , 0 >::type >::type >::type case_label23; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 24 >::type >::type case24; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case24 , 0 >::type >::type >::type case_label24; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 25 >::type >::type case25; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case25 , 0 >::type >::type >::type case_label25; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 26 >::type >::type case26; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case26 , 0 >::type >::type >::type case_label26; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 27 >::type >::type case27; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case27 , 0 >::type >::type >::type case_label27;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label23::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 23>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label24::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 24>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label25::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 25>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label26::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 26>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label27::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 27>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        28
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }
+    
+    
+    
+    
+    
+    
+    
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<30>
+              , mpl::false_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 23 >::type >::type case23; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case23 , 0 >::type >::type >::type case_label23; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 24 >::type >::type case24; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case24 , 0 >::type >::type >::type case_label24; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 25 >::type >::type case25; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case25 , 0 >::type >::type >::type case_label25; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 26 >::type >::type case26; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case26 , 0 >::type >::type >::type case_label26; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 27 >::type >::type case27; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case27 , 0 >::type >::type >::type case_label27; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 28 >::type >::type case28; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case28 , 0 >::type >::type >::type case_label28; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 29 >::type >::type case29; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case29 , 0 >::type >::type >::type case_label29;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label23::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 23>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label24::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 24>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label25::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 25>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label26::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 26>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label27::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 27>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label28::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 28>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label29::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 29>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                }
+            }
+            template <typename Context, typename Cond, typename Cases>
+            result_type
+            evaluate(
+                Context const & ctx
+              , Cond const & cond
+              , Cases const & cases
+              , mpl::int_<30>
+              , mpl::true_
+            ) const
+            {
+                typedef 
+                    typename proto::result_of::flatten<Cases const&>::type
+                    flat_view_type;
+                typedef
+                    typename fusion::result_of::begin<flat_view_type>::type
+                    flat_view_begin;
+                flat_view_type flat_view(proto::flatten(cases));
+                typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 0 >::type >::type case0; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case0 , 0 >::type >::type >::type case_label0; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 1 >::type >::type case1; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case1 , 0 >::type >::type >::type case_label1; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 2 >::type >::type case2; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case2 , 0 >::type >::type >::type case_label2; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 3 >::type >::type case3; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case3 , 0 >::type >::type >::type case_label3; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 4 >::type >::type case4; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case4 , 0 >::type >::type >::type case_label4; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 5 >::type >::type case5; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case5 , 0 >::type >::type >::type case_label5; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 6 >::type >::type case6; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case6 , 0 >::type >::type >::type case_label6; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 7 >::type >::type case7; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case7 , 0 >::type >::type >::type case_label7; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 8 >::type >::type case8; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case8 , 0 >::type >::type >::type case_label8; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 9 >::type >::type case9; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case9 , 0 >::type >::type >::type case_label9; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 10 >::type >::type case10; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case10 , 0 >::type >::type >::type case_label10; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 11 >::type >::type case11; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case11 , 0 >::type >::type >::type case_label11; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 12 >::type >::type case12; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case12 , 0 >::type >::type >::type case_label12; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 13 >::type >::type case13; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case13 , 0 >::type >::type >::type case_label13; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 14 >::type >::type case14; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case14 , 0 >::type >::type >::type case_label14; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 15 >::type >::type case15; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case15 , 0 >::type >::type >::type case_label15; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 16 >::type >::type case16; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case16 , 0 >::type >::type >::type case_label16; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 17 >::type >::type case17; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case17 , 0 >::type >::type >::type case_label17; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 18 >::type >::type case18; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case18 , 0 >::type >::type >::type case_label18; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 19 >::type >::type case19; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case19 , 0 >::type >::type >::type case_label19; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 20 >::type >::type case20; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case20 , 0 >::type >::type >::type case_label20; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 21 >::type >::type case21; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case21 , 0 >::type >::type >::type case_label21; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 22 >::type >::type case22; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case22 , 0 >::type >::type >::type case_label22; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 23 >::type >::type case23; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case23 , 0 >::type >::type >::type case_label23; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 24 >::type >::type case24; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case24 , 0 >::type >::type >::type case_label24; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 25 >::type >::type case25; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case25 , 0 >::type >::type >::type case_label25; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 26 >::type >::type case26; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case26 , 0 >::type >::type >::type case_label26; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 27 >::type >::type case27; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case27 , 0 >::type >::type >::type case_label27; typedef typename fusion::result_of::deref< typename fusion::result_of::advance_c< flat_view_begin , 28 >::type >::type case28; typedef typename proto::detail::uncvref< typename proto::result_of::value< typename proto::result_of::child_c< case28 , 0 >::type >::type >::type case_label28;
+                switch(boost::phoenix::eval(cond, ctx))
+                {
+                    case case_label0::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 0>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label1::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 1>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label2::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 2>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label3::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 3>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label4::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 4>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label5::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 5>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label6::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 6>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label7::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 7>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label8::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 8>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label9::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 9>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label10::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 10>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label11::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 11>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label12::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 12>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label13::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 13>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label14::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 14>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label15::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 15>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label16::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 16>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label17::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 17>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label18::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 18>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label19::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 19>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label20::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 20>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label21::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 21>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label22::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 22>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label23::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 23>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label24::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 24>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label25::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 25>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label26::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 26>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label27::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 27>(fusion::begin(flat_view)) ) ) , ctx ); break; case case_label28::value : boost::phoenix::eval( proto::child_c<1>( fusion::deref( fusion::advance_c< 28>(fusion::begin(flat_view)) ) ) , ctx ); break;
+                    default:
+                        boost::phoenix::eval(
+                            proto::child_c<0>(
+                                fusion::deref(
+                                    fusion::advance_c<
+                                        29
+                                    >(fusion::begin(flat_view))
+                                )
+                            )
+                            , ctx
+                        );
+                }
+            }