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<?php |
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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/bsd-license.php BSD |
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*/ |
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namespace Ray\Aop; |
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use PhpParser\BuilderFactory; |
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use PhpParser\Lexer; |
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use PhpParser\Parser; |
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use PhpParser\PrettyPrinter\Standard as StandardPrettyPrinter; |
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use Ray\Aop\Exception\NotWritableException; |
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use ReflectionClass; |
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final class Compiler implements CompilerInterface |
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{ |
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/** |
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* @var string |
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*/ |
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public $classDir; |
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/** |
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* @var CodeGenInterface |
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*/ |
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private $codeGen; |
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/** |
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* @param string $classDir |
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* @param CodeGenInterface $codeGen |
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*/ |
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public function __construct($classDir, CodeGenInterface $codeGen = null) |
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{ |
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if (! is_writable($classDir)) { |
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throw new NotWritableException($classDir); |
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} |
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$this->classDir = $classDir; |
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$this->codeGen = $codeGen ?: new CodeGen( |
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new Parser(new Lexer()), |
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new BuilderFactory(), |
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new StandardPrettyPrinter() |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function newInstance($class, array $args, BindInterface $bind) |
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{ |
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$compiledClass = $this->compile($class, $bind); |
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$instance = (new ReflectionClass($compiledClass))->newInstanceArgs($args); |
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$instance->bindings = $bind->getBindings(); |
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return $instance; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function compile($class, BindInterface $bind) |
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{ |
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if ($this->hasNoBinding($class, $bind)) { |
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return $class; |
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} |
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$newClass = $this->getNewClassName($class, $bind); |
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if (class_exists($newClass)) { |
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return $newClass; |
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} |
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$file = "{$this->classDir}/{$newClass}.php"; |
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if (file_exists($file)) { |
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/** @noinspection PhpIncludeInspection */ |
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include $file; |
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return $newClass; |
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} |
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$this->includeGeneratedCode($newClass, new ReflectionClass($class), $file, $bind); |
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return $newClass; |
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} |
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/** |
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* @param string $class |
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* @param BindInterface $bind |
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* |
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* @return bool |
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*/ |
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private function hasNoBinding($class, BindInterface $bind) |
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{ |
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$hasMethod = $this->hasBoundMethod($class, $bind); |
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return ! $bind->getBindings() && ! $hasMethod; |
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} |
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/** |
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* @param string $class |
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* @param BindInterface $bind |
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* |
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* @return string |
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*/ |
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private function getNewClassName($class, BindInterface $bind) |
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{ |
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$fileTime = filemtime((new \ReflectionClass($class))->getFileName()); |
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$newClass = sprintf("%s_%s", str_replace('\\', '_', $class), $bind->toString($fileTime)); |
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return $newClass; |
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} |
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/** |
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* @param string $class |
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* @param BindInterface $bind |
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* |
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* @return bool |
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*/ |
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private function hasBoundMethod($class, BindInterface $bind) |
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{ |
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$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, $bindingMethod)) { |
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$hasMethod = true; |
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} |
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} |
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return $hasMethod; |
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} |
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/** |
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* @param string $newClass |
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* @param ReflectionClass $sourceClass |
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* @param string $file |
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*/ |
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private function includeGeneratedCode($newClass, \ReflectionClass $sourceClass, $file, BindInterface $bind) |
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{ |
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$code = $this->codeGen->generate($newClass, $sourceClass, $bind); |
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file_put_contents($file, '<?php ' . PHP_EOL . $code); |
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/** @noinspection PhpIncludeInspection */ |
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require $file; |
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} |
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} |
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ray-di /
Ray.Aop
