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<?php namespace Spatie\Backtrace\Arguments; use ReflectionException; use ReflectionFunction; use ReflectionMethod; use ReflectionParameter; use Spatie\Backtrace\Arguments\ReducedArgument\VariadicReducedArgument; use Throwable; class ReduceArgumentsAction { /** @var ArgumentReducers */ protected $argumentReducers; /** @var ReduceArgumentPayloadAction */ protected $reduceArgumentPayloadAction; public function __construct( ArgumentReducers $argumentReducers ) { $this->argumentReducers = $argumentReducers; $this->reduceArgumentPayloadAction = new ReduceArgumentPayloadAction($argumentReducers); } public function execute( ?string $class, ?string $method, ?array $frameArguments ): ?array { try { if ($frameArguments === null) { return null; } $parameters = $this->getParameters($class, $method); if ($parameters === null) { $arguments = []; foreach ($frameArguments as $index => $argument) { $arguments[$index] = ProvidedArgument::fromNonReflectableParameter($index) ->setReducedArgument($this->reduceArgumentPayloadAction->reduce($argument)) ->toArray(); } return $arguments; } $arguments = array_map( function ($argument) { return $this->reduceArgumentPayloadAction->reduce($argument); }, $frameArguments, ); $argumentsCount = count($arguments); $hasVariadicParameter = false; foreach ($parameters as $index => $parameter) { if ($index + 1 > $argumentsCount) { $parameter->defaultValueUsed(); } elseif ($parameter->isVariadic) { $parameter->setReducedArgument(new VariadicReducedArgument(array_slice($arguments, $index))); $hasVariadicParameter = true; } else { $parameter->setReducedArgument($arguments[$index]); } $parameters[$index] = $parameter->toArray(); } if ($this->moreArgumentsProvidedThanParameters($arguments, $parameters, $hasVariadicParameter)) { for ($i = count($parameters); $i < count($arguments); $i++) { $parameters[$i] = ProvidedArgument::fromNonReflectableParameter(count($parameters)) ->setReducedArgument($arguments[$i]) ->toArray(); } } return $parameters; } catch (Throwable $e) { return null; } } /** @return null|Array<\Spatie\Backtrace\Arguments\ProvidedArgument> */ protected function getParameters( ?string $class, ?string $method ): ?array { try { $reflection = $class !== null ? new ReflectionMethod($class, $method) : new ReflectionFunction($method); } catch (ReflectionException $e) { return null; } return array_map( function (ReflectionParameter $reflectionParameter) { return ProvidedArgument::fromReflectionParameter($reflectionParameter); }, $reflection->getParameters(), ); } protected function moreArgumentsProvidedThanParameters( array $arguments, array $parameters, bool $hasVariadicParameter ): bool { return count($arguments) > count($parameters) && ! $hasVariadicParameter; } }
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