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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 function array_merge; |
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use Doctrine\Common\Annotations\AnnotationReader; |
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use function implode; |
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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\Stmt\Property; |
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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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* @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 = $printer; |
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$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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* {@inheritdoc} |
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*/ |
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public function generate(\ReflectionClass $sourceClass, BindInterface $bind) : Code |
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{ |
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$source = $this->getVisitorCode($sourceClass); |
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$methods = $this->codeGenMethod->getMethods($sourceClass, $bind, $source); |
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$propStms = $this->getAopProps($sourceClass); |
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$classStm = $source->class; |
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$newClassName = sprintf('%s_%s', (string) $source->class->name, $bind->toString('')); |
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$classStm->name = new Identifier($newClassName); |
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$classStm->extends = new Name('\\' . $sourceClass->name); |
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$classStm->implements[] = new Name('WeavedInterface'); |
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$classStm->stmts = array_merge($propStms, $methods); |
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$ns = $this->getNamespace($source); |
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$stmt = $this->factory->namespace($ns) |
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->addStmt($this->factory->use('Ray\Aop\WeavedInterface')) |
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->addStmt($this->factory->use('Ray\Aop\ReflectiveMethodInvocation')->as('Invocation')) |
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->addStmts($source->use) |
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->addStmt($classStm) |
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->getNode(); |
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$code = new Code; |
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$code->code = $this->printer->prettyPrintFile(array_merge($source->declare, [$stmt])); |
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return $code; |
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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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private function getVisitorCode(\ReflectionClass $class) : CodeVisitor |
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{ |
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$traverser = new NodeTraverser(); |
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$visitor = new CodeVisitor(); |
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$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($fileName); |
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if ($file === false) { |
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throw new \RuntimeException($fileName); // @codeCoverageIgnore |
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} |
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$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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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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/** |
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* @return Property[] |
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*/ |
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private function getAopProps(\ReflectionClass $class) : array |
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{ |
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$pros = []; |
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$pros[] = $this->factory |
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->property('bind') |
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->makePublic() |
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->getNode(); |
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$pros[] = |
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$this->factory->property('bindings') |
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->makePublic() |
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->setDefault([]) |
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->getNode(); |
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$pros[] = $this->factory |
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->property('methodAnnotations') |
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->setDefault($this->getMethodAnnotations($class)) |
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->makePublic() |
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->getNode(); |
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$pros[] = $this->factory |
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->property('classAnnotations') |
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->setDefault($this->getClassAnnotation($class)) |
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->makePublic() |
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->getNode(); |
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$pros[] = $this->factory |
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->property('isAspect') |
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->makePrivate() |
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->setDefault(true) |
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->getNode(); |
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return $pros; |
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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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/** |
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* @return null|string |
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*/ |
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private function getNamespace(CodeVisitor $source) |
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{ |
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$parts = $source->namespace->name->parts ?? []; |
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$ns = implode('\\', $parts); |
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return $ns ? $ns : null; |
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} |
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} |
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ray-di /
Ray.Aop
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..