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<?php |
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declare(strict_types = 1); |
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namespace Innmind\Reflection\Instanciator; |
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use Innmind\Reflection\{ |
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Instanciator, |
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Exception\InstanciationFailed, |
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}; |
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use Innmind\Immutable\{ |
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Map, |
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Set, |
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Sequence, |
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}; |
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use function Innmind\Immutable\unwrap; |
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final class ReflectionInstanciator implements Instanciator |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public function build(string $class, Map $properties): object |
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{ |
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try { |
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$refl = new \ReflectionClass($class); |
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if (!$refl->hasMethod('__construct')) { |
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return $refl->newInstance(); |
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} |
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$constructor = $refl->getMethod('__construct'); |
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return $refl->newInstanceArgs( |
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unwrap($this->computeArguments($constructor, $properties)), |
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); |
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} catch (\TypeError $e) { |
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throw new InstanciationFailed($class, $e); |
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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 parameters(string $class): Set |
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{ |
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$parameters = Set::strings(); |
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$refl = new \ReflectionClass($class); |
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if (!$refl->hasMethod('__construct')) { |
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return $parameters; |
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} |
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$refl = $refl->getMethod('__construct'); |
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foreach ($refl->getParameters() as $parameter) { |
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$parameters = ($parameters)($parameter->name); |
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} |
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return $parameters; |
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} |
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/** |
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* @param Map<string, mixed> $properties |
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* |
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* @return Sequence<mixed> |
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*/ |
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private function computeArguments( |
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\ReflectionMethod $constructor, |
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Map $properties |
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): Sequence { |
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$arguments = Sequence::mixed(); |
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foreach ($constructor->getParameters() as $parameter) { |
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if ($this->canInject($parameter, $properties)) { |
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$arguments = ($arguments)($properties->get($parameter->name)); |
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} |
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} |
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return $arguments; |
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} |
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3 |
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/** |
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* @param Map<string, mixed> $properties |
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*/ |
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private function canInject( |
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\ReflectionParameter $parameter, |
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Map $properties |
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): bool { |
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if ( |
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!$parameter->allowsNull() && |
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!$properties->contains($parameter->name) |
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) { |
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return false; |
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} else if ( |
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$parameter->allowsNull() && |
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!$properties->contains($parameter->name) |
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) { |
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return false; |
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} |
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/** @var mixed */ |
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$property = $properties->get($parameter->name); |
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if ($parameter->hasType()) { |
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/** @var \ReflectionNamedType $type */ |
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$type = $parameter->getType(); |
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3 |
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if ($type->isBuiltin()) { |
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return $type->getName() === \gettype($property); |
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} |
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3 |
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if (!\is_object($property)) { |
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return false; |
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} |
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$refl = new \ReflectionObject($property); |
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$wishedClass = $type->getName(); |
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return \get_class($property) === $wishedClass || |
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$refl->isSubClassOf($wishedClass); |
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} |
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1 |
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return true; |
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1 |
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} |
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} |
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Innmind /
Reflection
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