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<?php |
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/** |
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* Parser Reflection API |
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* |
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* @copyright Copyright 2015, Lisachenko Alexander <[email protected]> |
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* |
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* This source file is subject to the license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace Go\ParserReflection; |
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use Go\ParserReflection\Traits\InternalPropertiesEmulationTrait; |
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use Go\ParserReflection\Traits\ReflectionFunctionLikeTrait; |
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use PhpParser\Node\Stmt\ClassLike; |
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use PhpParser\Node\Stmt\ClassMethod; |
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use ReflectionMethod as BaseReflectionMethod; |
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/** |
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* AST-based reflection for the method in a class |
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*/ |
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class ReflectionMethod extends BaseReflectionMethod |
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{ |
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use ReflectionFunctionLikeTrait, InternalPropertiesEmulationTrait; |
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/** |
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* Name of the class |
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* |
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* @var string |
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*/ |
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private $className; |
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/** |
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* Optional declaring class reference |
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* |
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* @var ReflectionClass |
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*/ |
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private $declaringClass; |
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/** |
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* Initializes reflection instance for the method node |
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* |
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* @param string $className Name of the class |
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* @param string $methodName Name of the method |
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* @param ClassMethod $classMethodNode AST-node for method |
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* @param ReflectionClass $declaringClass Optional declaring class |
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*/ |
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public function __construct( |
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$className, |
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$methodName, |
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ClassMethod $classMethodNode = null, |
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ReflectionClass $declaringClass = null |
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) { |
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//for some reason, ReflectionMethod->getNamespaceName in php always returns '', so we shouldn't use it too |
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$this->className = $className; |
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$this->declaringClass = $declaringClass; |
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$this->functionLikeNode = $classMethodNode ?: ReflectionEngine::parseClassMethod($className, $methodName); |
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// Let's unset original read-only properties to have a control over them via __get |
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unset($this->name, $this->class); |
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} |
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/** |
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* Returns an AST-node for method |
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* |
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* @return ClassMethod |
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*/ |
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public function getNode() |
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{ |
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return $this->functionLikeNode; |
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} |
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/** |
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* Emulating original behaviour of reflection |
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*/ |
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public function ___debugInfo() |
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{ |
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return [ |
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'name' => $this->getClassMethodNode()->name, |
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'class' => $this->className |
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]; |
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} |
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/** |
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* Returns the string representation of the Reflection method object. |
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* |
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* @link http://php.net/manual/en/reflectionmethod.tostring.php |
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* |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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// Internally $this->getReturnType() !== null is the same as $this->hasReturnType() |
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$returnType = $this->getReturnType(); |
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$hasReturnType = $returnType !== null; |
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$paramsNeeded = $hasReturnType || $this->getNumberOfParameters() > 0; |
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$paramFormat = $paramsNeeded ? "\n\n - Parameters [%d] {%s\n }" : ''; |
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$returnFormat = $hasReturnType ? "\n - Return [ %s ]" : ''; |
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$methodParameters = $this->getParameters(); |
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try { |
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$prototype = $this->getPrototype(); |
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} catch (\ReflectionException $e) { |
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$prototype = null; |
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} |
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$prototypeClass = $prototype ? $prototype->getDeclaringClass()->name : ''; |
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$paramString = ''; |
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$identation = str_repeat(' ', 4); |
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foreach ($methodParameters as $methodParameter) { |
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$paramString .= "\n{$identation}" . $methodParameter; |
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} |
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return sprintf( |
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"%sMethod [ <user%s%s%s>%s%s%s %s method %s ] {\n @@ %s %d - %d{$paramFormat}{$returnFormat}\n}\n", |
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$this->getDocComment() ? $this->getDocComment() . "\n" : '', |
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$prototype ? ", overwrites {$prototypeClass}, prototype {$prototypeClass}" : '', |
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$this->isConstructor() ? ', ctor' : '', |
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$this->isDestructor() ? ', dtor' : '', |
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$this->isFinal() ? ' final' : '', |
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$this->isStatic() ? ' static' : '', |
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$this->isAbstract() ? ' abstract' : '', |
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join( |
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' ', |
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\Reflection::getModifierNames( |
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$this->getModifiers() & (self::IS_PUBLIC | self::IS_PROTECTED | self::IS_PRIVATE) |
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) |
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), |
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$this->getName(), |
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$this->getFileName(), |
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$this->getStartLine(), |
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$this->getEndLine(), |
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count($methodParameters), |
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$paramString, |
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$returnType ? ReflectionType::convertToDisplayType($returnType) : '' |
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); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getClosure($object) |
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{ |
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$this->initializeInternalReflection(); |
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return parent::getClosure($object); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getDeclaringClass() |
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{ |
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return isset($this->declaringClass) ? $this->declaringClass : new ReflectionClass($this->className); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getModifiers() |
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{ |
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$modifiers = 0; |
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if ($this->isPublic()) { |
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$modifiers += self::IS_PUBLIC; |
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} |
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if ($this->isProtected()) { |
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$modifiers += self::IS_PROTECTED; |
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} |
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if ($this->isPrivate()) { |
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$modifiers += self::IS_PRIVATE; |
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} |
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if ($this->isAbstract()) { |
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$modifiers += self::IS_ABSTRACT; |
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} |
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if ($this->isFinal()) { |
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$modifiers += self::IS_FINAL; |
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} |
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if ($this->isStatic()) { |
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$modifiers += self::IS_STATIC; |
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} |
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return $modifiers; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getPrototype() |
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{ |
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$parent = $this->getDeclaringClass()->getParentClass(); |
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if (!$parent) { |
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throw new ReflectionException("No prototype"); |
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} |
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$prototypeMethod = $parent->getMethod($this->getName()); |
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if (!$prototypeMethod) { |
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throw new ReflectionException("No prototype"); |
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} |
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return $prototypeMethod; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function invoke($object, $args = null) |
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{ |
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$this->initializeInternalReflection(); |
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return call_user_func_array('parent::invoke', func_get_args()); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function invokeArgs($object, array $args) |
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{ |
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$this->initializeInternalReflection(); |
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return parent::invokeArgs($object, $args); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isAbstract() |
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{ |
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return $this->getDeclaringClass()->isInterface() || $this->getClassMethodNode()->isAbstract(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isConstructor() |
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{ |
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return $this->getClassMethodNode()->name == '__construct'; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isDestructor() |
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{ |
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return $this->getClassMethodNode()->name == '__destruct'; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isFinal() |
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{ |
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return $this->getClassMethodNode()->isFinal(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isPrivate() |
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{ |
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return $this->getClassMethodNode()->isPrivate(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isProtected() |
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{ |
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return $this->getClassMethodNode()->isProtected(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isPublic() |
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{ |
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return $this->getClassMethodNode()->isPublic(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isStatic() |
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{ |
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return $this->getClassMethodNode()->isStatic(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function setAccessible($accessible) |
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{ |
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$this->initializeInternalReflection(); |
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parent::setAccessible($accessible); |
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} |
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/** |
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* Parses methods from the concrete class node |
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* |
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* @param ClassLike $classLikeNode Class-like node |
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* @param ReflectionClass $reflectionClass Reflection of the class |
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* |
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* @return array|ReflectionMethod[] |
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*/ |
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public static function collectFromClassNode(ClassLike $classLikeNode, ReflectionClass $reflectionClass) |
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{ |
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$methods = []; |
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foreach ($classLikeNode->stmts as $classLevelNode) { |
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if ($classLevelNode instanceof ClassMethod) { |
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$classLevelNode->setAttribute('fileName', $classLikeNode->getAttribute('fileName')); |
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$methodName = $classLevelNode->name; |
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$methods[$methodName] = new ReflectionMethod( |
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$reflectionClass->name, |
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$methodName, |
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$classLevelNode, |
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$reflectionClass |
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); |
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} |
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} |
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return $methods; |
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} |
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/** |
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* Implementation of internal reflection initialization |
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* |
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* @return void |
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*/ |
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protected function __initialize() |
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{ |
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parent::__construct($this->className, $this->getName()); |
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} |
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/** |
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* Returns ClassMethod node to prevent all possible type checks with instanceof |
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* |
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* @return ClassMethod |
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*/ |
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private function getClassMethodNode() |
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{ |
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return $this->functionLikeNode; |
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} |
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} |
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