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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\Traits; |
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use Go\ParserReflection\NodeVisitor\GeneratorDetector; |
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use Go\ParserReflection\NodeVisitor\StaticVariablesCollector; |
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use Go\ParserReflection\ReflectionFileNamespace; |
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use Go\ParserReflection\ReflectionParameter; |
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use Go\ParserReflection\ReflectionType; |
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use PhpParser\Node\Expr\Closure; |
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use PhpParser\Node\FunctionLike; |
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use PhpParser\Node\Stmt\ClassMethod; |
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use PhpParser\Node\Stmt\Function_; |
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use PhpParser\NodeTraverser; |
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/** |
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* General trait for all function-like reflections |
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*/ |
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trait ReflectionFunctionLikeTrait |
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{ |
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use InitializationTrait; |
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/** |
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* @var FunctionLike |
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*/ |
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protected $functionLikeNode; |
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/** |
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* Namespace name |
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* |
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* @var string |
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*/ |
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protected $namespaceName = ''; |
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/** |
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* @var array|ReflectionParameter[] |
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*/ |
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protected $parameters; |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getClosureScopeClass() |
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{ |
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$this->initializeInternalReflection(); |
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return forward_static_call('parent::getClosureScopeClass'); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getClosureThis() |
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{ |
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$this->initializeInternalReflection(); |
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return forward_static_call('parent::getClosureThis'); |
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} |
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public function getDocComment() |
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{ |
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$docComment = $this->functionLikeNode->getDocComment(); |
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return $docComment ? $docComment->getText() : false; |
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} |
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public function getEndLine() |
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{ |
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return $this->functionLikeNode->getAttribute('endLine'); |
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} |
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public function getExtension() |
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{ |
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return null; |
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} |
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public function getExtensionName() |
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{ |
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return false; |
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} |
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public function getFileName() |
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{ |
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return $this->functionLikeNode->getAttribute('fileName'); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getName() |
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{ |
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if ($this->functionLikeNode instanceof Function_ || $this->functionLikeNode instanceof ClassMethod) { |
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$functionName = $this->functionLikeNode->name; |
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return $this->namespaceName ? $this->namespaceName . '\\' . $functionName : $functionName; |
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} |
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return false; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getNamespaceName() |
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{ |
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return $this->namespaceName; |
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} |
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/** |
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* Get the number of parameters that a function defines, both optional and required. |
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* |
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* @link http://php.net/manual/en/reflectionfunctionabstract.getnumberofparameters.php |
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* |
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* @return int |
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*/ |
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public function getNumberOfParameters() |
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{ |
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return count($this->functionLikeNode->getParams()); |
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} |
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/** |
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* Get the number of required parameters that a function defines. |
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* |
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* @link http://php.net/manual/en/reflectionfunctionabstract.getnumberofrequiredparameters.php |
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* |
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* @return int |
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*/ |
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public function getNumberOfRequiredParameters() |
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{ |
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$requiredParameters = 0; |
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foreach ($this->getParameters() as $parameter) { |
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if (!$parameter->isOptional()) { |
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$requiredParameters++; |
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} |
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} |
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return $requiredParameters; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getParameters() |
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{ |
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if (!isset($this->parameters)) { |
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$parameters = []; |
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foreach ($this->functionLikeNode->getParams() as $parameterIndex => $parameterNode) { |
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$reflectionParameter = new ReflectionParameter( |
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$this->getName(), |
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$parameterNode->name, |
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$parameterNode, |
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$parameterIndex, |
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$this |
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); |
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$parameters[] = $reflectionParameter; |
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} |
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$this->parameters = $parameters; |
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} |
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return $this->parameters; |
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} |
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/** |
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* Gets the specified return type of a function |
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* |
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* @return \ReflectionType |
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* |
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* @link http://php.net/manual/en/reflectionfunctionabstract.getreturntype.php |
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*/ |
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public function getReturnType() |
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{ |
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$isBuiltin = false; |
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$returnType = $this->functionLikeNode->getReturnType(); |
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if (is_object($returnType)) { |
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$returnType = $returnType->toString(); |
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} elseif (is_string($returnType)) { |
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$isBuiltin = true; |
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} else { |
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return null; |
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} |
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return new ReflectionType($returnType, false, $isBuiltin); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getShortName() |
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{ |
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if ($this->functionLikeNode instanceof Function_ || $this->functionLikeNode instanceof ClassMethod) { |
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return $this->functionLikeNode->name; |
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} |
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return false; |
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} |
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public function getStartLine() |
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{ |
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return $this->functionLikeNode->getAttribute('startLine'); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getStaticVariables() |
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{ |
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$nodeTraverser = new NodeTraverser(false); |
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$variablesCollector = new StaticVariablesCollector($this); |
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$nodeTraverser->addVisitor($variablesCollector); |
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/* @see https://github.com/nikic/PHP-Parser/issues/235 */ |
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$nodeTraverser->traverse($this->functionLikeNode->getStmts() ?: array()); |
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return $variablesCollector->getStaticVariables(); |
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} |
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/** |
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* Checks if the function has a specified return type |
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* |
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* @return bool |
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* |
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* @link http://php.net/manual/en/reflectionfunctionabstract.hasreturntype.php |
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*/ |
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public function hasReturnType() |
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{ |
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$returnType = $this->functionLikeNode->getReturnType(); |
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return isset($returnType); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function inNamespace() |
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{ |
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return !empty($this->namespaceName); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isClosure() |
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{ |
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return $this->functionLikeNode instanceof Closure; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isDeprecated() |
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{ |
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// userland method/function/closure can not be deprecated |
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return false; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isGenerator() |
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{ |
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$nodeTraverser = new NodeTraverser(false); |
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$nodeDetector = new GeneratorDetector(); |
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$nodeTraverser->addVisitor($nodeDetector); |
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/* @see https://github.com/nikic/PHP-Parser/issues/235 */ |
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$nodeTraverser->traverse($this->functionLikeNode->getStmts() ?: array()); |
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return $nodeDetector->isGenerator(); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isInternal() |
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{ |
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// never can be an internal method |
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return false; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isUserDefined() |
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{ |
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// always defined by user, because we parse the source code |
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return true; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function isVariadic() |
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{ |
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foreach ($this->getParameters() as $parameter) { |
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if ($parameter->isVariadic()) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function returnsReference() |
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{ |
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return $this->functionLikeNode->returnsByRef(); |
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} |
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} |
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