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<?php
declare (strict_types=1);
namespace ElementorDeps\Invoker;
use ElementorDeps\Invoker\Exception\NotCallableException;
use ElementorDeps\Invoker\Exception\NotEnoughParametersException;
use ElementorDeps\Invoker\ParameterResolver\AssociativeArrayResolver;
use ElementorDeps\Invoker\ParameterResolver\DefaultValueResolver;
use ElementorDeps\Invoker\ParameterResolver\NumericArrayResolver;
use ElementorDeps\Invoker\ParameterResolver\ParameterResolver;
use ElementorDeps\Invoker\ParameterResolver\ResolverChain;
use ElementorDeps\Invoker\Reflection\CallableReflection;
use ElementorDeps\Psr\Container\ContainerInterface;
use ReflectionParameter;
/**
* Invoke a callable.
*/
class Invoker implements InvokerInterface
{
/** @var CallableResolver|null */
private $callableResolver;
/** @var ParameterResolver */
private $parameterResolver;
/** @var ContainerInterface|null */
private $container;
public function __construct(?ParameterResolver $parameterResolver = null, ?ContainerInterface $container = null)
{
$this->parameterResolver = $parameterResolver ?: $this->createParameterResolver();
$this->container = $container;
if ($container) {
$this->callableResolver = new CallableResolver($container);
}
}
/**
* {@inheritdoc}
*/
public function call($callable, array $parameters = [])
{
if ($this->callableResolver) {
$callable = $this->callableResolver->resolve($callable);
}
if (!\is_callable($callable)) {
throw new NotCallableException(\sprintf('%s is not a callable', \is_object($callable) ? 'Instance of ' . \get_class($callable) : \var_export($callable, \true)));
}
$callableReflection = CallableReflection::create($callable);
$args = $this->parameterResolver->getParameters($callableReflection, $parameters, []);
// Sort by array key because call_user_func_array ignores numeric keys
\ksort($args);
// Check all parameters are resolved
$diff = \array_diff_key($callableReflection->getParameters(), $args);
$parameter = \reset($diff);
if ($parameter && \assert($parameter instanceof ReflectionParameter) && !$parameter->isVariadic()) {
throw new NotEnoughParametersException(\sprintf('Unable to invoke the callable because no value was given for parameter %d ($%s)', $parameter->getPosition() + 1, $parameter->name));
}
return \call_user_func_array($callable, $args);
}
/**
* Create the default parameter resolver.
*/
private function createParameterResolver() : ParameterResolver
{
return new ResolverChain([new NumericArrayResolver(), new AssociativeArrayResolver(), new DefaultValueResolver()]);
}
/**
* @return ParameterResolver By default it's a ResolverChain
*/
public function getParameterResolver() : ParameterResolver
{
return $this->parameterResolver;
}
public function getContainer() : ?ContainerInterface
{
return $this->container;
}
/**
* @return CallableResolver|null Returns null if no container was given in the constructor.
*/
public function getCallableResolver() : ?CallableResolver
{
return $this->callableResolver;
}
}
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