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efrain |
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<?php
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declare(strict_types=1);
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namespace DI\Definition\Resolver;
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use DI\Definition\Definition;
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use DI\Definition\Exception\InvalidDefinition;
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use DI\Definition\FactoryDefinition;
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use DI\Invoker\FactoryParameterResolver;
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use Invoker\Exception\NotCallableException;
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use Invoker\Exception\NotEnoughParametersException;
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use Invoker\Invoker;
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use Invoker\ParameterResolver\AssociativeArrayResolver;
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use Invoker\ParameterResolver\DefaultValueResolver;
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use Invoker\ParameterResolver\NumericArrayResolver;
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use Invoker\ParameterResolver\ResolverChain;
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use Psr\Container\ContainerInterface;
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/**
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* Resolves a factory definition to a value.
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*
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* @template-implements DefinitionResolver<FactoryDefinition>
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*
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* @since 4.0
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* @author Matthieu Napoli <matthieu@mnapoli.fr>
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*/
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class FactoryResolver implements DefinitionResolver
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{
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private ?Invoker $invoker = null;
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/**
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* The resolver needs a container. This container will be passed to the factory as a parameter
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* so that the factory can access other entries of the container.
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*/
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public function __construct(
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private ContainerInterface $container,
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private DefinitionResolver $resolver,
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) {
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}
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/**
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* Resolve a factory definition to a value.
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*
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* This will call the callable of the definition.
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*
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* @param FactoryDefinition $definition
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*/
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public function resolve(Definition $definition, array $parameters = []) : mixed
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{
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if (! $this->invoker) {
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$parameterResolver = new ResolverChain([
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new AssociativeArrayResolver,
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new FactoryParameterResolver($this->container),
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new NumericArrayResolver,
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new DefaultValueResolver,
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]);
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$this->invoker = new Invoker($parameterResolver, $this->container);
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}
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$callable = $definition->getCallable();
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try {
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$providedParams = [$this->container, $definition];
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$extraParams = $this->resolveExtraParams($definition->getParameters());
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$providedParams = array_merge($providedParams, $extraParams, $parameters);
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return $this->invoker->call($callable, $providedParams);
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} catch (NotCallableException $e) {
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// Custom error message to help debugging
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if (is_string($callable) && class_exists($callable) && method_exists($callable, '__invoke')) {
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throw new InvalidDefinition(sprintf(
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'Entry "%s" cannot be resolved: factory %s. Invokable classes cannot be automatically resolved if autowiring is disabled on the container, you need to enable autowiring or define the entry manually.',
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$definition->getName(),
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$e->getMessage()
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));
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}
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throw new InvalidDefinition(sprintf(
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'Entry "%s" cannot be resolved: factory %s',
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$definition->getName(),
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$e->getMessage()
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));
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} catch (NotEnoughParametersException $e) {
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throw new InvalidDefinition(sprintf(
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'Entry "%s" cannot be resolved: %s',
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$definition->getName(),
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$e->getMessage()
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));
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}
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}
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public function isResolvable(Definition $definition, array $parameters = []) : bool
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{
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return true;
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}
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private function resolveExtraParams(array $params) : array
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{
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$resolved = [];
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foreach ($params as $key => $value) {
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// Nested definitions
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if ($value instanceof Definition) {
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$value = $this->resolver->resolve($value);
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}
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$resolved[$key] = $value;
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}
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return $resolved;
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}
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}
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