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<?php |
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namespace TheCodingMachine\Funky; |
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use Psr\Container\ContainerInterface; |
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use ReflectionMethod; |
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use ReflectionParameter; |
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use TheCodingMachine\Funky\Annotations\Factory; |
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use TheCodingMachine\Funky\Injections\ContainerInjection; |
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use TheCodingMachine\Funky\Injections\Injection; |
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use TheCodingMachine\Funky\Injections\ServiceInjection; |
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class FactoryDefinition |
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{ |
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/** |
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* @var ReflectionMethod |
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*/ |
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private $reflectionMethod; |
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private $name; |
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private $aliases; |
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public function __construct(ReflectionMethod $reflectionMethod, Factory $annotation) |
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{ |
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if (!$reflectionMethod->isPublic()) { |
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throw BadModifierException::mustBePublic($reflectionMethod, '@Factory'); |
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} |
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if (!$reflectionMethod->isStatic()) { |
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throw BadModifierException::mustBeStatic($reflectionMethod, '@Factory'); |
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} |
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$this->reflectionMethod = $reflectionMethod; |
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if ($annotation->isFromMethodName()) { |
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$this->name = $reflectionMethod->getName(); |
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} elseif ($annotation->isFromType()) { |
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$returnType = $reflectionMethod->getReturnType(); |
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if ($returnType === null) { |
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throw UnknownTypeException::create($reflectionMethod); |
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} |
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$this->name = (string) $returnType; |
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} else { |
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$this->name = $annotation->getName(); |
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} |
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$this->aliases = $annotation->getAliases(); |
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} |
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/** |
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* Returns true if the signature of the reflection method is compatible with container-interop/service-provider factories. |
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*/ |
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public function isPsrFactory(): bool |
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{ |
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$numberOfParameters = $this->reflectionMethod->getNumberOfParameters(); |
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if ($numberOfParameters > 1) { |
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return false; |
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} |
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if ($numberOfParameters === 0) { |
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return true; |
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} |
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$parameter = $this->reflectionMethod->getParameters()[0]; |
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if ($parameter !== null && (string) $parameter->getType() === ContainerInterface::class) { |
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return true; |
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} |
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return false; |
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} |
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public function buildFactoryCode(string $functionName) : string |
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{ |
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$returnTypeCode = ''; |
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$returnType = $this->reflectionMethod->getReturnType(); |
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if ($returnType) { |
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if ($returnType->isBuiltin()) { |
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$returnTypeCode = ': '.$this->reflectionMethod->getReturnType(); |
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} else { |
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$returnTypeCode = ': \\'.$this->reflectionMethod->getReturnType(); |
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} |
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} |
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return sprintf(<<<EOF |
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public static function %s(ContainerInterface \$container)%s |
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{ |
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return %s::%s(%s); |
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} |
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EOF |
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, $functionName, |
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$returnTypeCode, |
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$this->reflectionMethod->getDeclaringClass()->getName(), |
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$this->reflectionMethod->getName(), |
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implode(', ', array_map(function(Injection $injection) {return $injection->getCode();}, $this->getInjections())) |
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); |
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} |
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/** |
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* Returns a list of services to be injected. |
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* |
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* @return Injection[] |
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*/ |
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private function getInjections(): array |
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{ |
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return array_map(function(ReflectionParameter $reflectionParameter) { |
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$type = $reflectionParameter->getType(); |
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// No type? Let's inject by parameter name. |
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if ($type === null || $type->isBuiltin()) { |
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return new ServiceInjection($reflectionParameter->getName(), !$reflectionParameter->allowsNull()); |
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} |
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if (((string)$type) === ContainerInterface::class) { |
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return new ContainerInjection(); |
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} |
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return new ServiceInjection((string)$type, !$reflectionParameter->allowsNull()); |
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}, $this->getReflectionMethod()->getParameters()); |
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} |
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/** |
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* @return ReflectionMethod |
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*/ |
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public function getReflectionMethod(): ReflectionMethod |
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{ |
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return $this->reflectionMethod; |
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} |
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/** |
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* @return string |
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*/ |
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public function getName(): string |
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{ |
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return $this->name; |
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} |
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/** |
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* @return string[] |
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*/ |
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public function getAliases(): array |
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{ |
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return $this->aliases; |
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} |
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} |
thecodingmachine /
funky
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