diff DEPENDENCIES/generic/include/boost/wave/cpp_exceptions.hpp @ 16:2665513ce2d3

Add boost headers
author Chris Cannam
date Tue, 05 Aug 2014 11:11:38 +0100
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DEPENDENCIES/generic/include/boost/wave/cpp_exceptions.hpp	Tue Aug 05 11:11:38 2014 +0100
@@ -0,0 +1,421 @@
+/*=============================================================================
+    Boost.Wave: A Standard compliant C++ preprocessor library
+
+    http://www.boost.org/
+
+    Copyright (c) 2001-2012 Hartmut Kaiser. 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)
+=============================================================================*/
+
+#if !defined(CPP_EXCEPTIONS_HPP_5190E447_A781_4521_A275_5134FF9917D7_INCLUDED)
+#define CPP_EXCEPTIONS_HPP_5190E447_A781_4521_A275_5134FF9917D7_INCLUDED
+
+#include <exception>
+#include <string>
+#include <limits>
+
+#include <boost/assert.hpp>
+#include <boost/config.hpp>
+#include <boost/throw_exception.hpp>
+#include <boost/wave/wave_config.hpp>
+#include <boost/wave/cpp_throw.hpp>
+
+// this must occur after all of the includes and before any code appears
+#ifdef BOOST_HAS_ABI_HEADERS
+#include BOOST_ABI_PREFIX
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+namespace boost {
+namespace wave {
+
+///////////////////////////////////////////////////////////////////////////////
+// exception severity
+namespace util {
+
+    enum severity {
+        severity_remark = 0,
+        severity_warning,
+        severity_error,
+        severity_fatal,
+        severity_commandline_error,
+        last_severity_code = severity_commandline_error
+    };
+
+    inline char const *
+    get_severity(int level)
+    {
+        static char const *severity_text[] =
+        {
+            "remark",               // severity_remark
+            "warning",              // severity_warning
+            "error",                // severity_error
+            "fatal error",          // severity_fatal
+            "command line error"    // severity_commandline_error
+        };
+        BOOST_ASSERT(severity_remark <= level &&
+            level <= last_severity_code);
+        return severity_text[level];
+    }
+}
+
+///////////////////////////////////////////////////////////////////////////////
+//  cpp_exception, the base class for all specific C preprocessor exceptions
+class BOOST_SYMBOL_VISIBLE cpp_exception
+:   public std::exception
+{
+public:
+    cpp_exception(std::size_t line_, std::size_t column_, char const *filename_) throw()
+    :   line(line_), column(column_)
+    {
+        unsigned int off = 0;
+        while (off < sizeof(filename)-1 && *filename_)
+            filename[off++] = *filename_++;
+        filename[off] = 0;
+    }
+    ~cpp_exception() throw() {}
+
+    virtual char const *what() const throw() = 0;           // to be overloaded
+    virtual char const *description() const throw() = 0;
+    virtual int get_errorcode() const throw() = 0;
+    virtual int get_severity() const throw() = 0;
+    virtual char const* get_related_name() const throw() = 0;
+    virtual bool is_recoverable() const throw() = 0;
+
+    std::size_t line_no() const throw() { return line; }
+    std::size_t column_no() const throw() { return column; }
+    char const *file_name() const throw() { return filename; }
+
+protected:
+    char filename[512];
+    std::size_t line;
+    std::size_t column;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+// preprocessor error
+class BOOST_SYMBOL_VISIBLE preprocess_exception :
+    public cpp_exception
+{
+public:
+    enum error_code {
+        no_error = 0,
+        unexpected_error,
+        macro_redefinition,
+        macro_insertion_error,
+        bad_include_file,
+        bad_include_statement,
+        ill_formed_directive,
+        error_directive,
+        warning_directive,
+        ill_formed_expression,
+        missing_matching_if,
+        missing_matching_endif,
+        ill_formed_operator,
+        bad_define_statement,
+        bad_define_statement_va_args,
+        too_few_macroarguments,
+        too_many_macroarguments,
+        empty_macroarguments,
+        improperly_terminated_macro,
+        bad_line_statement,
+        bad_line_number,
+        bad_line_filename,
+        bad_undefine_statement,
+        bad_macro_definition,
+        illegal_redefinition,
+        duplicate_parameter_name,
+        invalid_concat,
+        last_line_not_terminated,
+        ill_formed_pragma_option,
+        include_nesting_too_deep,
+        misplaced_operator,
+        alreadydefined_name,
+        undefined_macroname,
+        invalid_macroname,
+        unexpected_qualified_name,
+        division_by_zero,
+        integer_overflow,
+        illegal_operator_redefinition,
+        ill_formed_integer_literal,
+        ill_formed_character_literal,
+        unbalanced_if_endif,
+        character_literal_out_of_range,
+        could_not_open_output_file,
+        incompatible_config,
+        ill_formed_pragma_message,
+        pragma_message_directive,
+        last_error_number = pragma_message_directive
+    };
+
+    preprocess_exception(char const *what_, error_code code, std::size_t line_,
+        std::size_t column_, char const *filename_) throw()
+    :   cpp_exception(line_, column_, filename_),
+        code(code)
+    {
+        unsigned int off = 0;
+        while (off < sizeof(buffer) && *what_)
+            buffer[off++] = *what_++;
+        buffer[off] = 0;
+    }
+    ~preprocess_exception() throw() {}
+
+    virtual char const *what() const throw()
+    {
+        return "boost::wave::preprocess_exception";
+    }
+    virtual char const *description() const throw()
+    {
+        return buffer;
+    }
+    virtual int get_severity() const throw()
+    {
+        return severity_level(code);
+    }
+    virtual int get_errorcode() const throw()
+    {
+        return code;
+    }
+    virtual char const* get_related_name() const throw()
+    {
+        return "<unknown>";
+    }
+    virtual bool is_recoverable() const throw()
+    {
+        switch (get_errorcode()) {
+        // these are the exceptions thrown during processing not supposed to
+        // produce any tokens on the context::iterator level
+        case preprocess_exception::no_error:        // just a placeholder
+        case preprocess_exception::macro_redefinition:
+        case preprocess_exception::macro_insertion_error:
+        case preprocess_exception::bad_macro_definition:
+        case preprocess_exception::illegal_redefinition:
+        case preprocess_exception::duplicate_parameter_name:
+        case preprocess_exception::invalid_macroname:
+        case preprocess_exception::bad_include_file:
+        case preprocess_exception::bad_include_statement:
+        case preprocess_exception::ill_formed_directive:
+        case preprocess_exception::error_directive:
+        case preprocess_exception::warning_directive:
+        case preprocess_exception::ill_formed_expression:
+        case preprocess_exception::missing_matching_if:
+        case preprocess_exception::missing_matching_endif:
+        case preprocess_exception::unbalanced_if_endif:
+        case preprocess_exception::bad_define_statement:
+        case preprocess_exception::bad_define_statement_va_args:
+        case preprocess_exception::bad_line_statement:
+        case preprocess_exception::bad_line_number:
+        case preprocess_exception::bad_line_filename:
+        case preprocess_exception::bad_undefine_statement:
+        case preprocess_exception::division_by_zero:
+        case preprocess_exception::integer_overflow:
+        case preprocess_exception::ill_formed_integer_literal:
+        case preprocess_exception::ill_formed_character_literal:
+        case preprocess_exception::character_literal_out_of_range:
+        case preprocess_exception::last_line_not_terminated:
+        case preprocess_exception::include_nesting_too_deep:
+        case preprocess_exception::illegal_operator_redefinition:
+        case preprocess_exception::incompatible_config:
+        case preprocess_exception::ill_formed_pragma_option:
+        case preprocess_exception::ill_formed_pragma_message:
+        case preprocess_exception::pragma_message_directive:
+            return true;
+
+        case preprocess_exception::unexpected_error:
+        case preprocess_exception::ill_formed_operator:
+        case preprocess_exception::too_few_macroarguments:
+        case preprocess_exception::too_many_macroarguments:
+        case preprocess_exception::empty_macroarguments:
+        case preprocess_exception::improperly_terminated_macro:
+        case preprocess_exception::invalid_concat:
+        case preprocess_exception::could_not_open_output_file:
+            break;
+        }
+        return false;
+    }
+
+    static char const *error_text(int code)
+    {
+    // error texts in this array must appear in the same order as the items in
+    // the error enum above
+        static char const *preprocess_exception_errors[] = {
+            "no error",                                 // no_error
+            "unexpected error (should not happen)",     // unexpected_error
+            "illegal macro redefinition",               // macro_redefinition
+            "macro definition failed (out of memory?)", // macro_insertion_error
+            "could not find include file",              // bad_include_file
+            "ill formed #include directive",            // bad_include_statement
+            "ill formed preprocessor directive",        // ill_formed_directive
+            "encountered #error directive or #pragma wave stop()", // error_directive
+            "encountered #warning directive",           // warning_directive
+            "ill formed preprocessor expression",       // ill_formed_expression
+            "the #if for this directive is missing",    // missing_matching_if
+            "detected at least one missing #endif directive",   // missing_matching_endif
+            "ill formed preprocessing operator",        // ill_formed_operator
+            "ill formed #define directive",             // bad_define_statement
+            "__VA_ARGS__ can only appear in the "
+            "expansion of a C99 variadic macro",        // bad_define_statement_va_args
+            "too few macro arguments",                  // too_few_macroarguments
+            "too many macro arguments",                 // too_many_macroarguments
+            "empty macro arguments are not supported in pure C++ mode, "
+            "use variadics mode to allow these",        // empty_macroarguments
+            "improperly terminated macro invocation "
+            "or replacement-list terminates in partial "
+            "macro expansion (not supported yet)",      // improperly_terminated_macro
+            "ill formed #line directive",               // bad_line_statement
+            "line number argument of #line directive "
+            "should consist out of decimal digits "
+            "only and must be in range of [1..INT_MAX]", // bad_line_number
+            "filename argument of #line directive should "
+            "be a narrow string literal",               // bad_line_filename
+            "#undef may not be used on this predefined name",   // bad_undefine_statement
+            "invalid macro definition",                 // bad_macro_definition
+            "this predefined name may not be redefined",        // illegal_redefinition
+            "duplicate macro parameter name",           // duplicate_parameter_name
+            "pasting the following two tokens does not "
+            "give a valid preprocessing token",         // invalid_concat
+            "last line of file ends without a newline", // last_line_not_terminated
+            "unknown or illformed pragma option",       // ill_formed_pragma_option
+            "include files nested too deep",            // include_nesting_too_deep
+            "misplaced operator defined()",             // misplaced_operator
+            "the name is already used in this scope as "
+            "a macro or scope name",                    // alreadydefined_name
+            "undefined macro or scope name may not be imported", // undefined_macroname
+            "ill formed macro name",                    // invalid_macroname
+            "qualified names are supported in C++11 mode only",  // unexpected_qualified_name
+            "division by zero in preprocessor expression",       // division_by_zero
+            "integer overflow in preprocessor expression",       // integer_overflow
+            "this cannot be used as a macro name as it is "
+            "an operator in C++",                       // illegal_operator_redefinition
+            "ill formed integer literal or integer constant too large",   // ill_formed_integer_literal
+            "ill formed character literal",             // ill_formed_character_literal
+            "unbalanced #if/#endif in include file",    // unbalanced_if_endif
+            "expression contains out of range character literal", // character_literal_out_of_range
+            "could not open output file",               // could_not_open_output_file
+            "incompatible state information",           // incompatible_config
+            "illformed pragma message",                 // ill_formed_pragma_message
+            "encountered #pragma message directive"     // pragma_message_directive
+        };
+        BOOST_ASSERT(no_error <= code && code <= last_error_number);
+        return preprocess_exception_errors[code];
+    }
+
+    static util::severity severity_level(int code)
+    {
+        static util::severity preprocess_exception_severity[] = {
+            util::severity_remark,             // no_error
+            util::severity_fatal,              // unexpected_error
+            util::severity_warning,            // macro_redefinition
+            util::severity_fatal,              // macro_insertion_error
+            util::severity_error,              // bad_include_file
+            util::severity_error,              // bad_include_statement
+            util::severity_error,              // ill_formed_directive
+            util::severity_fatal,              // error_directive
+            util::severity_warning,            // warning_directive
+            util::severity_error,              // ill_formed_expression
+            util::severity_error,              // missing_matching_if
+            util::severity_error,              // missing_matching_endif
+            util::severity_error,              // ill_formed_operator
+            util::severity_error,              // bad_define_statement
+            util::severity_error,              // bad_define_statement_va_args
+            util::severity_warning,            // too_few_macroarguments
+            util::severity_warning,            // too_many_macroarguments
+            util::severity_warning,            // empty_macroarguments
+            util::severity_error,              // improperly_terminated_macro
+            util::severity_warning,            // bad_line_statement
+            util::severity_warning,            // bad_line_number
+            util::severity_warning,            // bad_line_filename
+            util::severity_warning,            // bad_undefine_statement
+            util::severity_commandline_error,  // bad_macro_definition
+            util::severity_warning,            // illegal_redefinition
+            util::severity_error,              // duplicate_parameter_name
+            util::severity_error,              // invalid_concat
+            util::severity_warning,            // last_line_not_terminated
+            util::severity_warning,            // ill_formed_pragma_option
+            util::severity_fatal,              // include_nesting_too_deep
+            util::severity_error,              // misplaced_operator
+            util::severity_error,              // alreadydefined_name
+            util::severity_error,              // undefined_macroname
+            util::severity_error,              // invalid_macroname
+            util::severity_error,              // unexpected_qualified_name
+            util::severity_fatal,              // division_by_zero
+            util::severity_error,              // integer_overflow
+            util::severity_error,              // illegal_operator_redefinition
+            util::severity_error,              // ill_formed_integer_literal
+            util::severity_error,              // ill_formed_character_literal
+            util::severity_warning,            // unbalanced_if_endif
+            util::severity_warning,            // character_literal_out_of_range
+            util::severity_error,              // could_not_open_output_file
+            util::severity_remark,             // incompatible_config
+            util::severity_warning,            // ill_formed_pragma_message
+            util::severity_remark,             // pragma_message_directive
+        };
+        BOOST_ASSERT(no_error <= code && code <= last_error_number);
+        return preprocess_exception_severity[code];
+    }
+    static char const *severity_text(int code)
+    {
+        return util::get_severity(severity_level(code));
+    }
+
+private:
+    char buffer[512];
+    error_code code;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+//  Error during macro handling, this exception contains the related macro name
+class BOOST_SYMBOL_VISIBLE macro_handling_exception :
+    public preprocess_exception
+{
+public:
+    macro_handling_exception(char const *what_, error_code code, std::size_t line_,
+        std::size_t column_, char const *filename_, char const *macroname) throw()
+    :   preprocess_exception(what_, code, line_, column_, filename_)
+    {
+        unsigned int off = 0;
+        while (off < sizeof(name) && *macroname)
+            name[off++] = *macroname++;
+        name[off] = 0;
+    }
+    ~macro_handling_exception() throw() {}
+
+    virtual char const *what() const throw()
+    {
+        return "boost::wave::macro_handling_exception";
+    }
+    char const* get_related_name() const throw()
+    {
+        return name;
+    }
+
+private:
+    char name[512];
+};
+
+///////////////////////////////////////////////////////////////////////////////
+//
+//  The is_recoverable() function allows to decide, whether it is possible
+//  simply to continue after a given exception was thrown by Wave.
+//
+//  This is kind of a hack to allow to recover from certain errors as long as
+//  Wave doesn't provide better means of error recovery.
+//
+///////////////////////////////////////////////////////////////////////////////
+inline bool
+is_recoverable(cpp_exception const& e)
+{
+    return e.is_recoverable();
+}
+
+///////////////////////////////////////////////////////////////////////////////
+}   // namespace wave
+}   // namespace boost
+
+// the suffix header occurs after all of the code
+#ifdef BOOST_HAS_ABI_HEADERS
+#include BOOST_ABI_SUFFIX
+#endif
+
+#endif // !defined(CPP_EXCEPTIONS_HPP_5190E447_A781_4521_A275_5134FF9917D7_INCLUDED)