<?php
declare (strict_types=1);
namespace ElementorDeps\Invoker\ParameterResolver;
use ReflectionException;
use ReflectionFunctionAbstract;
/**
* Finds the default value for a parameter, *if it exists*.
*/
class DefaultValueResolver implements ParameterResolver
{
public function getParameters(ReflectionFunctionAbstract $reflection, array $providedParameters, array $resolvedParameters) : array
{
$parameters = $reflection->getParameters();
// Skip parameters already resolved
if (!empty($resolvedParameters)) {
$parameters = \array_diff_key($parameters, $resolvedParameters);
}
foreach ($parameters as $index => $parameter) {
\assert($parameter instanceof \ReflectionParameter);
if ($parameter->isDefaultValueAvailable()) {
try {
$resolvedParameters[$index] = $parameter->getDefaultValue();
} catch (ReflectionException $e) {
// Can't get default values from PHP internal classes and functions
}
} else {
$parameterType = $parameter->getType();
if ($parameterType && $parameterType->allowsNull()) {
$resolvedParameters[$index] = null;
}
}
}
return $resolvedParameters;
}
}