custom-facebook-feed
/
vendor
/
php-di
/
invoker
/
src
/
ParameterResolver
/
DefaultValueResolver.php
DefaultValueResolver.php
| 1 | <?php |
| 2 | |
| 3 | |
| 4 | namespace FacebookFeed\Vendor\Invoker\ParameterResolver; |
| 5 | |
| 6 | use ReflectionException; |
| 7 | use ReflectionFunctionAbstract; |
| 8 | /** |
| 9 | * Finds the default value for a parameter, *if it exists*. |
| 10 | */ |
| 11 | class DefaultValueResolver implements ParameterResolver |
| 12 | { |
| 13 | public function getParameters(ReflectionFunctionAbstract $reflection, array $providedParameters, array $resolvedParameters): array |
| 14 | { |
| 15 | $parameters = $reflection->getParameters(); |
| 16 | // Skip parameters already resolved |
| 17 | if (!empty($resolvedParameters)) { |
| 18 | $parameters = array_diff_key($parameters, $resolvedParameters); |
| 19 | } |
| 20 | foreach ($parameters as $index => $parameter) { |
| 21 | \assert($parameter instanceof \ReflectionParameter); |
| 22 | if ($parameter->isDefaultValueAvailable()) { |
| 23 | try { |
| 24 | $resolvedParameters[$index] = $parameter->getDefaultValue(); |
| 25 | } catch (ReflectionException $e) { |
| 26 | // Can't get default values from PHP internal classes and functions |
| 27 | } |
| 28 | } else { |
| 29 | $parameterType = $parameter->getType(); |
| 30 | if ($parameterType && $parameterType->allowsNull()) { |
| 31 | $resolvedParameters[$index] = null; |
| 32 | } |
| 33 | } |
| 34 | } |
| 35 | return $resolvedParameters; |
| 36 | } |
| 37 | } |
| 38 |