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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Factory\Extractors; |
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use Yiisoft\Factory\Definitions\ClassDefinition; |
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use Yiisoft\Factory\Definitions\DefinitionInterface; |
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use Yiisoft\Factory\Definitions\ParameterDefinition; |
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use Yiisoft\Factory\Exceptions\NotInstantiableException; |
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/** |
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* Class DefinitionExtractor |
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* This implementation resolves dependencies by using class type hints. |
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* Note that service names need not match the parameter names, parameter names are ignored |
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*/ |
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class DefinitionExtractor implements ExtractorInterface |
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{ |
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/** |
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* @param class-string $class |
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*/ |
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public function fromClassName(string $class): array |
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{ |
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$reflectionClass = new \ReflectionClass($class); |
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if (!$reflectionClass->isInstantiable()) { |
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throw new NotInstantiableException($class); |
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} |
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$constructor = $reflectionClass->getConstructor(); |
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return $constructor === null ? [] : $this->fromFunction($constructor); |
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} |
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/** |
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* @suppress PhanUndeclaredMethod |
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*/ |
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private function fromFunction(\ReflectionFunctionAbstract $reflectionFunction): array |
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{ |
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$result = []; |
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foreach ($reflectionFunction->getParameters() as $parameter) { |
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$result[$parameter->getName()] = $this->fromParameter($parameter); |
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} |
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return $result; |
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} |
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/** |
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* @suppress PhanUndeclaredMethod |
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*/ |
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private function fromParameter(\ReflectionParameter $parameter): DefinitionInterface |
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{ |
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$type = $parameter->getType(); |
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// PHP 8 union type is used as type hint |
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/** @psalm-suppress UndefinedClass, TypeDoesNotContainType */ |
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if ($type instanceof \ReflectionUnionType) { |
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$types = []; |
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foreach ($type->getTypes() as $unionType) { |
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if (!$unionType->isBuiltin()) { |
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$typeName = $unionType->getName(); |
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if ($typeName === 'self') { |
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$typeName = $parameter->getDeclaringClass()->getName(); |
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} |
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$types[] = $typeName; |
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} |
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} |
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return new ClassDefinition(implode('|', $types), $type->allowsNull()); |
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} |
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// Our parameter has a class type hint |
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if ($type !== null && !$type->isBuiltin()) { |
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$typeName = $type->getName(); |
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if ($typeName === 'self') { |
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$typeName = $parameter->getDeclaringClass()->getName(); |
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} |
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return new ClassDefinition($typeName, $type->allowsNull()); |
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} |
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// Our parameter does not have a class type hint and either has a default value or is nullable. |
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return new ParameterDefinition( |
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$parameter, |
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$parameter->isDefaultValueAvailable() ? $parameter->getDefaultValue() : null, |
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$type !== null ? $type->getName() : null |
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); |
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} |
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public function fromCallable(callable $callable): array |
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{ |
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return $this->fromFunction(new \ReflectionFunction(\Closure::fromCallable($callable))); |
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} |
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} |
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yiisoft /
factory
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