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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; |
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use PhpParser\Node\Stmt\Class_; |
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use PhpParser\NodeTraverser; |
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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 = $this->getMethodInsideStatement($method); |
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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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* @return Node\Stmt[] |
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*/ |
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private function getMethodInsideStatement(\ReflectionMethod $method) : array |
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{ |
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$traverser = new NodeTraverser; |
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$traverser->addVisitor(new AopTemplateConverter($method)); |
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$stmts = $this->getTemplateMethodNodeStmts(); |
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// traverse |
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$stmts = $traverser->traverse($stmts); |
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$result = []; |
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foreach ($stmts as $stmt) { |
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if ($stmt instanceof Node\Stmt) { |
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$result[] = $stmt; |
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} |
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} |
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return $result; |
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} |
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private function getTemplateMethodNodeStmts() : array |
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{ |
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$code = $this->getTemplateCode(); |
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$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 $methodNode->stmts; |
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} |
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/** |
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* Return CodeGenTemplate string |
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* |
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* Compiler takes only the statements in the method. Then create new inherit code with interceptors. |
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5 |
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* |
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* @see http://paul-m-jones.com/archives/182 |
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* @see http://stackoverflow.com/questions/8343399/calling-a-function-with-explicit-parameters-vs-call-user-func-array |
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* @see http://stackoverflow.com/questions/1796100/what-is-faster-many-ifs-or-else-if |
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* @see http://stackoverflow.com/questions/2401478/why-is-faster-than-in-php |
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*/ |
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private function getTemplateCode() : string |
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{ |
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return <<<'EOT' |
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<?php |
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class AopTemplate extends \Ray\Aop\FakeMock implements Ray\Aop\WeavedInterface |
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{ |
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/** |
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* @var array |
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* |
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* [$methodName => [$interceptorA[]][] |
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*/ |
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public $bindings; |
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/** |
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* @var bool |
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*/ |
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private $isAspect = true; |
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/** |
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* Method Template |
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* |
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* @param mixed $a |
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*/ |
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public function templateMethod($a, $b) |
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{ |
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if (! $this->isAspect) { |
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$this->isAspect = true; |
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return parent::templateMethod($a, $b); |
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} |
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$this->isAspect = false; |
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$result = (new Invocation($this, __FUNCTION__, [$a, $b], $this->bindings[__FUNCTION__]))->proceed(); |
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$this->isAspect = true; |
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return $result; |
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} |
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} |
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EOT; |
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} |
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} |
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ray-di /
Ray.Aop
