comparison vendor/psy/psysh/src/CodeCleaner/AbstractClassPass.php @ 0:c75dbcec494b

Initial commit from drush-created site

+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2018 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\CodeCleaner;
+
+use PhpParser\Node;
+use PhpParser\Node\Stmt\Class_;
+use PhpParser\Node\Stmt\ClassMethod;
+use Psy\Exception\FatalErrorException;
+
+/**
+ * The abstract class pass handles abstract classes and methods, complaining if there are too few or too many of either.
+ */
+class AbstractClassPass extends CodeCleanerPass
+{
+    private $class;
+    private $abstractMethods;
+
+    /**
+     * @throws RuntimeException if the node is an abstract function with a body
+     *
+     * @param Node $node
+     */
+    public function enterNode(Node $node)
+    {
+        if ($node instanceof Class_) {
+            $this->class = $node;
+            $this->abstractMethods = [];
+        } elseif ($node instanceof ClassMethod) {
+            if ($node->isAbstract()) {
+                $name = sprintf('%s::%s', $this->class->name, $node->name);
+                $this->abstractMethods[] = $name;
+
+                if ($node->stmts !== null) {
+                    $msg = sprintf('Abstract function %s cannot contain body', $name);
+                    throw new FatalErrorException($msg, 0, E_ERROR, null, $node->getLine());
+                }
+            }
+        }
+    }
+
+    /**
+     * @throws RuntimeException if the node is a non-abstract class with abstract methods
+     *
+     * @param Node $node
+     */
+    public function leaveNode(Node $node)
+    {
+        if ($node instanceof Class_) {
+            $count = count($this->abstractMethods);
+            if ($count > 0 && !$node->isAbstract()) {
+                $msg = sprintf(
+                    'Class %s contains %d abstract method%s must therefore be declared abstract or implement the remaining methods (%s)',
+                    $node->name,
+                    $count,
+                    ($count === 1) ? '' : 's',
+                    implode(', ', $this->abstractMethods)
+                );
+                throw new FatalErrorException($msg, 0, E_ERROR, null, $node->getLine());
+            }
+        }
+    }
+}