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<?php declare(strict_types=1); |
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namespace Phact\Container\Builder; |
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use Closure; |
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use ReflectionClass; |
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use ReflectionException; |
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use ReflectionFunction; |
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use ReflectionFunctionAbstract; |
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use ReflectionMethod; |
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use ReflectionParameter; |
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class DependenciesResolver implements DependenciesResolverInterface |
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{ |
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/** |
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* Constructors dependencies |
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* @var array |
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*/ |
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protected $constructors = []; |
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/** |
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* Callable dependencies |
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* @var array |
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*/ |
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protected $callables = []; |
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/** |
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* {@inheritDoc} |
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*/ |
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public function resolveConstructorDependencies(string $className, ?string $constructMethod = null): array |
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{ |
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$key = $className . ($constructMethod ? '::' . $constructMethod : ''); |
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if (!isset($this->constructors[$key])) { |
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$reflection = new ReflectionClass($className); |
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$dependencies = []; |
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if ($constructMethod === null) { |
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$constructor = $reflection->getConstructor(); |
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} else { |
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$constructor = new \ReflectionMethod($className, $constructMethod); |
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} |
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if ($constructor) { |
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$dependencies = $this->resolveFunctionDependencies($constructor); |
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} |
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$this->constructors[$key] = $dependencies; |
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} |
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return $this->constructors[$key]; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function resolveCallableDependencies(callable $callable): array |
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{ |
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is_callable($callable, false, $name); |
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if (!isset($this->callables[$name])) { |
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if (is_array($callable)) { |
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$reflection = new ReflectionMethod($callable[0], $callable[1]); |
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} elseif (is_object($callable) && !$callable instanceof Closure) { |
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$reflection = new ReflectionMethod($callable, '__invoke'); |
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} else { |
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$reflection = new ReflectionFunction($callable); |
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} |
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$this->callables[$name] = $this->resolveFunctionDependencies($reflection); |
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} |
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return $this->callables[$name]; |
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} |
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/** |
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* Fetch dependencies from function by reflection |
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* |
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* @param ReflectionFunctionAbstract $reflection |
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* @return Dependency[] Dependencies |
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* @throws ReflectionException |
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*/ |
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protected function resolveFunctionDependencies(ReflectionFunctionAbstract $reflection): array |
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{ |
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$dependencies = []; |
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foreach ($reflection->getParameters() as $param) { |
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if ($param->isVariadic()) { |
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break; |
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} |
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list($type, $value) = $this->getTypeValueByParameter($param); |
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$dependencies[] = new Dependency( |
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$type, |
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$param->name, |
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$value |
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); |
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} |
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return $dependencies; |
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} |
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/** |
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* @param ReflectionParameter $parameter |
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* @return array |
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* @throws ReflectionException |
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*/ |
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protected function getTypeValueByParameter(ReflectionParameter $parameter): array |
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{ |
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$value = null; |
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$type = DependencyInterface::TYPE_VALUE; |
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if ($c = $parameter->getClass()) { |
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$type = DependencyInterface::TYPE_REQUIRED; |
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if ($parameter->allowsNull()) { |
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$type = DependencyInterface::TYPE_OPTIONAL; |
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} |
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$value = $c->name; |
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} elseif ($parameter->isDefaultValueAvailable()) { |
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$value = $parameter->getDefaultValue(); |
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} |
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return [$type, $value]; |
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} |
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} |
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phact-cmf /
Container
