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<?php |
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declare(strict_types=1); |
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namespace Ray\Aop; |
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use PhpParser\BuilderFactory; |
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use PhpParser\Node\Identifier; |
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use PhpParser\Node\Name; |
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use PhpParser\Node\NullableType; |
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use PhpParser\Node\Stmt\Class_; |
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use PhpParser\NodeAbstract; |
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use PhpParser\Parser; |
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use PhpParser\PrettyPrinter\Standard; |
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final class CodeGenMethod |
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{ |
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/** |
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* @var \PhpParser\Parser |
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*/ |
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private $parser; |
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/** |
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* @var \PhpParser\BuilderFactory |
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*/ |
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private $factory; |
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/** |
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* @var \PhpParser\PrettyPrinter\Standard |
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*/ |
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private $printer; |
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/** |
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* @throws \Doctrine\Common\Annotations\AnnotationException |
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*/ |
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public function __construct( |
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Parser $parser, |
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BuilderFactory $factory, |
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Standard $printer |
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) { |
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$this->parser = $parser; |
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$this->factory = $factory; |
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$this->printer = $printer; |
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} |
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public function getMethods(\ReflectionClass $class, BindInterface $bind, CodeVisitor $code) : array |
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{ |
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$bindingMethods = array_keys($bind->getBindings()); |
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$classMethods = $code->classMethod; |
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$methods = []; |
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foreach ($classMethods as $classMethod) { |
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$methodName = $classMethod->name->name; |
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$method = new \ReflectionMethod($class->name, $methodName); |
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$isBindingMethod = in_array($methodName, $bindingMethods, true); |
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/* @var $method \ReflectionMethod */ |
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$isPublic = $classMethod->flags === Class_::MODIFIER_PUBLIC; |
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if ($isBindingMethod && $isPublic) { |
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$methodInsideStatements = $this->getTemplateMethodNodeStmts( |
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$classMethod->getReturnType() |
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); |
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// replace statements in the method |
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$classMethod->stmts = $methodInsideStatements; |
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$methods[] = $classMethod; |
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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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* @param null|Identifier|Name|NullableType $returnType |
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*/ |
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private function getTemplateMethodNodeStmts(?NodeAbstract $returnType) : array |
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{ |
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$code = $this->isReturnVoid($returnType) ? AopTemplate::RETURN_VOID : AopTemplate::RETURN; |
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$node = $this->parser->parse($code)[0]; |
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if (! $node instanceof Class_) { |
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throw new \LogicException; // @codeCoverageIgnore |
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} |
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$methodNode = $node->getMethods()[0]; |
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if ($methodNode->stmts === null) { |
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throw new \LogicException; // @codeCoverageIgnore |
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} |
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return $methodNode->stmts; |
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} |
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/** |
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* @param null|Identifier|Name|NullableType $returnType |
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*/ |
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private function isReturnVoid(?NodeAbstract $returnType) : bool |
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{ |
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return $returnType instanceof Identifier && $returnType->name === 'void'; |
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} |
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} |
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koriym /
Ray.Aop
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.