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<?php |
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declare(strict_types=1); |
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/** |
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* This file is part of the Ray.Aop package. |
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* |
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* @license http://opensource.org/licenses/MIT MIT |
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*/ |
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namespace Ray\Aop; |
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use Doctrine\Common\Annotations\AnnotationReader; |
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use PhpParser\Builder\Class_ as Builder; |
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use PhpParser\BuilderFactory; |
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use PhpParser\Comment\Doc; |
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use PhpParser\Node\Stmt; |
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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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use Ray\Aop\Exception\InvalidSourceClassException; |
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final class CodeGen implements CodeGenInterface |
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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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* @var CodeGenMethod |
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*/ |
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private $codeGenMethod; |
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/** |
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* @var AnnotationReader |
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*/ |
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private $reader; |
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/** |
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* @param \PhpParser\Parser $parser |
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* @param \PhpParser\BuilderFactory $factory |
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* @param \PhpParser\PrettyPrinter\Standard $printer |
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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 = $printer; |
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$this->codeGenMethod = new CodeGenMethod($parser, $factory, $printer); |
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$this->reader = new AnnotationReader; |
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} |
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/** |
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* Generate weaved class code |
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*/ |
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public function generate($class, \ReflectionClass $sourceClass, BindInterface $bind) : string |
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{ |
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$methods = $this->codeGenMethod->getMethods($sourceClass, $bind); |
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$classStmt = $this->buildClass($class, $sourceClass, $methods); |
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$classStmt = $this->addClassDocComment($classStmt, $sourceClass); |
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$declareStmt = $this->getPhpFileStmt($sourceClass); |
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return $this->printer->prettyPrintFile(array_merge($declareStmt, [$classStmt])); |
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} |
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/** |
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* Return "declare()" and "use" statement code |
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* |
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* @return Stmt[] |
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*/ |
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private function getPhpFileStmt(\ReflectionClass $class) : array |
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{ |
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$traverser = new NodeTraverser(); |
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$visitor = new CodeGenVisitor(); |
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$traverser->addVisitor($visitor); |
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$fileName = $class->getFileName(); |
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if (is_bool($fileName)) { |
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throw new InvalidSourceClassException(get_class($class)); |
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} |
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$file = file_get_contents($fileName); |
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$stmts = $this->parser->parse($file); |
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if (is_array($stmts)) { |
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$traverser->traverse($stmts); |
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} |
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return $visitor(); |
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} |
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/** |
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* Return class statement |
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*/ |
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private function getClass(BuilderFactory $factory, string $newClassName, \ReflectionClass $class) : Builder |
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{ |
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$parentClass = $class->name; |
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$builder = $factory |
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->class($newClassName) |
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->extend($parentClass) |
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->implement('Ray\Aop\WeavedInterface'); |
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$builder = $this->addInterceptorProp($builder); |
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$builder = $this->addSerialisedAnnotationProp($builder, $class); |
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return $builder; |
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} |
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/** |
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* Add class doc comment |
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*/ |
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private function addClassDocComment(Class_ $node, \ReflectionClass $class) : Class_ |
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{ |
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$docComment = $class->getDocComment(); |
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if ($docComment) { |
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$node->setDocComment(new Doc($docComment)); |
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} |
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return $node; |
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} |
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private function getClassAnnotation(\ReflectionClass $class) : string |
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{ |
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$classAnnotations = $this->reader->getClassAnnotations($class); |
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return serialize($classAnnotations); |
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} |
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private function addInterceptorProp(Builder $builder) : Builder |
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{ |
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$builder->addStmt( |
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$this->factory |
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->property('isIntercepting') |
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->makePrivate() |
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->setDefault(true) |
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)->addStmt( |
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$this->factory->property('bind') |
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->makePublic() |
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); |
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return $builder; |
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} |
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/** |
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* Add serialised |
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*/ |
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private function addSerialisedAnnotationProp(Builder $builder, \ReflectionClass $class) : Builder |
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{ |
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$builder->addStmt( |
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$this->factory |
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->property('methodAnnotations') |
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->setDefault($this->getMethodAnnotations($class)) |
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->makePublic() |
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)->addStmt( |
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$this->factory |
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->property('classAnnotations') |
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->setDefault($this->getClassAnnotation($class)) |
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->makePublic() |
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); |
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return $builder; |
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} |
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private function getMethodAnnotations(\ReflectionClass $class) : string |
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{ |
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$methodsAnnotation = []; |
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$methods = $class->getMethods(); |
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foreach ($methods as $method) { |
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$annotations = $this->reader->getMethodAnnotations($method); |
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if ($annotations === []) { |
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continue; |
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} |
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$methodsAnnotation[$method->name] = $annotations; |
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} |
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return serialize($methodsAnnotation); |
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} |
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private function buildClass(string $class, \ReflectionClass $sourceClass, array $methods) : Class_ |
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{ |
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$stmt = $this |
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->getClass($this->factory, $class, $sourceClass) |
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->addStmts($methods) |
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->getNode(); |
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return $stmt; |
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} |
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} |
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koriym /
Ray.Aop
