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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 Doctrine\Common\Annotations\AnnotationException; |
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use ParseError; |
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use Ray\Aop\Exception\CompilationFailedException; |
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use Ray\Aop\Exception\NotWritableException; |
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use ReflectionClass; |
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use function array_keys; |
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use function assert; |
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use function class_exists; |
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use function file_exists; |
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use function file_put_contents; |
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use function is_writable; |
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use function method_exists; |
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use function sprintf; |
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use function str_replace; |
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use const PHP_VERSION_ID; |
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final class Compiler implements CompilerInterface |
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{ |
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/** @var string */ |
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public $classDir; |
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/** @throws AnnotationException */ |
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public function __construct(string $classDir) |
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{ |
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if (! is_writable($classDir)) { |
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throw new NotWritableException($classDir); |
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} |
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$this->classDir = $classDir; |
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} |
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/** |
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* {@inheritDoc} |
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* |
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* @template T of object |
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*/ |
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public function newInstance(string $class, array $args, BindInterface $bind) |
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{ |
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$compiledClass = $this->compile($class, $bind); |
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assert(class_exists($compiledClass)); |
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$instance = (new ReflectionClass($compiledClass))->newInstanceArgs($args); |
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if (isset($instance->bindings)) { |
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$instance->bindings = $bind->getBindings(); |
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} |
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assert($instance instanceof $class); |
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return $instance; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function compile(string $class, BindInterface $bind): string |
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{ |
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if ($this->hasNoBinding($class, $bind)) { |
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return $class; |
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} |
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$className = new AopPostfixClassName($class, (string) $bind, $this->classDir); |
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if (class_exists($className->fqn, false)) { |
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return $className->fqn; |
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} |
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try { |
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$this->requireFile($className, new ReflectionClass($class), $bind); |
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// @codeCoverageIgnoreStart |
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} catch (ParseError $e) { |
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$msg = sprintf('class:%s Compilation failed in Ray.Aop. This is most likely a bug in Ray.Aop, please report it to the issue. https://github.com/ray-di/Ray.Aop/issues', $class); |
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1 |
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throw new CompilationFailedException($msg); |
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// @codeCoverageIgnoreEnd |
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} |
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return $className->fqn; |
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} |
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/** @param class-string $class */ |
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private function hasNoBinding(string $class, BindInterface $bind): bool |
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{ |
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$hasMethod = $this->hasBoundMethod($class, $bind); |
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return ! $bind->getBindings() && ! $hasMethod; |
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} |
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/** @param class-string $class */ |
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private function hasBoundMethod(string $class, BindInterface $bind): bool |
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{ |
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$bindingMethods = array_keys($bind->getBindings()); |
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$hasMethod = false; |
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foreach ($bindingMethods as $bindingMethod) { |
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if (! method_exists($class, $bindingMethod)) { |
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continue; |
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} |
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$hasMethod = true; |
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} |
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return $hasMethod; |
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} |
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/** @param ReflectionClass<object> $sourceClass */ |
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private function requireFile(AopPostfixClassName $className, ReflectionClass $sourceClass, BindInterface $bind): void |
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{ |
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$file = $this->getFileName($className->fqn); |
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if (! file_exists($file)) { |
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$code = new AopCode(new MethodSignatureString(PHP_VERSION_ID)); |
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$aopCode = $code->generate($sourceClass, $bind, $className->postFix); |
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file_put_contents($file, $aopCode); |
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} |
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require_once $file; |
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class_exists($className->fqn); // ensure class is created |
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} |
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private function getFileName(string $aopClassName): string |
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{ |
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$flatName = str_replace('\\', '_', $aopClassName); |
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return sprintf('%s/%s.php', $this->classDir, $flatName); |
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} |
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} |
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koriym /
Ray.Aop
Loading history...
Let?s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let?s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: