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<?php |
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namespace Zenstruck\Browser\Util; |
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/** |
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* Utility to manipulate and validate \Closure arguments. |
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* |
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* TODO extract to a library as zenstruck/foundry could benefit. |
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* |
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* @author Kevin Bond <[email protected]> |
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* |
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* @internal |
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*/ |
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final class FunctionExecutor |
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{ |
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private \ReflectionFunction $function; |
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private int $minArguments = 0; |
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private array $typeReplace = []; |
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public function __construct(\ReflectionFunction $function) |
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{ |
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$this->function = $function; |
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} |
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/** |
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* @param callable|\ReflectionFunction $value |
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*/ |
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public static function createFor($value): self |
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{ |
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if (\is_callable($value)) { |
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$value = new \ReflectionFunction(\Closure::fromCallable($value)); |
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} |
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if (!$value instanceof \ReflectionFunction) { |
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throw new \InvalidArgumentException('$value must be callable or \ReflectionFunction'); |
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} |
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return new self($value); |
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} |
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public function minArguments(int $min): self |
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{ |
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$this->minArguments = $min; |
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return $this; |
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} |
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public function replaceTypedArgument(string $typehint, $value): self |
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{ |
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$this->typeReplace[$typehint] = $value; |
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return $this; |
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} |
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public function replaceUntypedArgument($value): self |
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{ |
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$this->typeReplace[null] = $value; |
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return $this; |
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} |
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public function execute() |
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{ |
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$arguments = $this->function->getParameters(); |
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if (\count($arguments) < $this->minArguments) { |
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throw new \ArgumentCountError("{$this->minArguments} argument(s) required."); |
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} |
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$arguments = \array_map([$this, 'replaceArgument'], $arguments); |
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return $this->function->invoke(...$arguments); |
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} |
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private function replaceArgument(\ReflectionParameter $argument) |
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{ |
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$type = $argument->getType(); |
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if (!$type && \array_key_exists(null, $this->typeReplace)) { |
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return $this->typeReplace[null]; |
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} |
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if (!$type instanceof \ReflectionNamedType) { |
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throw new \TypeError("Unable to replace argument \"{$argument->getName()}\"."); |
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} |
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foreach (\array_keys($this->typeReplace) as $typehint) { |
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if (!\is_a($type->getName(), $typehint, true)) { |
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continue; |
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} |
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if (!($value = $this->typeReplace[$typehint]) instanceof \Closure) { |
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return $value; |
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} |
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return $value($type->getName()); |
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} |
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throw new \TypeError("Unable to replace argument \"{$argument->getName()}\"."); |
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} |
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} |
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zenstruck /
browser
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