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<?php |
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declare(strict_types=1); |
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namespace ProxyManager\ProxyGenerator\ValueHolder\MethodGenerator; |
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use ProxyManager\Generator\MethodGenerator; |
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use ProxyManager\ProxyGenerator\Util\Properties; |
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use ProxyManager\ProxyGenerator\Util\UnsetPropertiesGenerator; |
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use ReflectionClass; |
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use Zend\Code\Generator\PropertyGenerator; |
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use Zend\Code\Reflection\MethodReflection; |
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use Zend\Code\Reflection\ParameterReflection; |
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/** |
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* The `__construct` implementation for lazy loading proxies |
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* |
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* @author Marco Pivetta <[email protected]> |
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* @license MIT |
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*/ |
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class Constructor extends MethodGenerator |
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{ |
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/** |
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* @throws \Zend\Code\Generator\Exception\InvalidArgumentException |
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*/ |
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public static function generateMethod(ReflectionClass $originalClass, PropertyGenerator $valueHolder) : self |
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{ |
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$originalConstructor = self::getConstructor($originalClass); |
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/* @var $constructor self */ |
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$constructor = $originalConstructor |
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? self::fromReflectionWithoutBodyAndDocBlock($originalConstructor) |
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: new self('__construct'); |
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$constructor->setBody( |
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'static $reflection;' . "\n\n" |
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. 'if (! $this->' . $valueHolder->getName() . ') {' . "\n" |
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. ' $reflection = $reflection ?: new \ReflectionClass(' |
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. var_export($originalClass->getName(), true) |
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. ");\n" |
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. ' $this->' . $valueHolder->getName() . ' = $reflection->newInstanceWithoutConstructor();' . "\n" |
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. UnsetPropertiesGenerator::generateSnippet(Properties::fromReflectionClass($originalClass), 'this') |
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. '}' |
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. ($originalConstructor ? self::generateOriginalConstructorCall($originalConstructor, $valueHolder) : '') |
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); |
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return $constructor; |
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} |
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private static function generateOriginalConstructorCall( |
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MethodReflection $originalConstructor, |
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PropertyGenerator $valueHolder |
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) : string { |
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return "\n\n" |
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. '$this->' . $valueHolder->getName() . '->' . $originalConstructor->getName() . '(' |
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. implode( |
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', ', |
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array_map( |
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function (ParameterReflection $parameter) : string { |
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return ($parameter->isVariadic() ? '...' : '') . '$' . $parameter->getName(); |
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}, |
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$originalConstructor->getParameters() |
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) |
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) |
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. ');'; |
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} |
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/** |
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* @param ReflectionClass $class |
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* |
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* @return MethodReflection|null |
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*/ |
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private static function getConstructor(ReflectionClass $class) |
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{ |
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$constructors = array_map( |
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function (\ReflectionMethod $method) : MethodReflection { |
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return new MethodReflection( |
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$method->getDeclaringClass()->getName(), |
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$method->getName() |
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); |
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}, |
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array_filter( |
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$class->getMethods(), |
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function (\ReflectionMethod $method) : bool { |
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return $method->isConstructor(); |
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} |
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) |
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); |
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return reset($constructors) ?: null; |
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} |
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} |
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Ocramius /
ProxyManager
