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<?php |
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namespace Silk; |
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class Callback |
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{ |
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protected $target; |
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/** |
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* Create a new Callback instance |
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* |
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* @param callable $target The callback to wrap |
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*/ |
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public function __construct(callable $target) |
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{ |
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$this->target = static::normalizeSyntax($target); |
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} |
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/** |
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* Normalize the callable syntax |
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* |
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* Converts string static class method to standard callable array. |
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* |
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* @param mixed $callback Target callback |
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* |
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* @return mixed Closure Anonymous function |
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* array Class method |
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* string Function |
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*/ |
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public static function normalizeSyntax(callable $callback) |
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{ |
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if (is_string($callback) && false !== strpos($callback, '::')) { |
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$callback = explode('::', $callback); |
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} |
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return $callback; |
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} |
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/** |
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* Call the target callable |
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* |
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* @return mixed Returns the return value of the callback, or FALSE on error. |
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*/ |
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public function call() |
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{ |
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return $this->callArray(func_get_args()); |
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} |
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/** |
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* Call the target callable, with an array of arguments |
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* |
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* @param array $arguments The parameters to be passed to the callback, as an indexed array. |
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* @return mixed Returns the return value of the callback, or FALSE on error. |
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*/ |
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public function callArray(array $arguments = []) |
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{ |
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return call_user_func_array($this->target, $arguments); |
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} |
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/** |
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* Get the target callable |
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* |
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* @return mixed The normalized callable |
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*/ |
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public function get() |
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{ |
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return $this->target; |
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} |
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/** |
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* Get the number of parameters from the callback's signature |
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* |
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* @return int |
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*/ |
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public function parameterCount() |
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{ |
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return $this->reflect()->getNumberOfParameters(); |
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} |
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/** |
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* Get the corresponding Reflection instance for the target callable |
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* |
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* @return \ReflectionFunctionAbstract |
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*/ |
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public function reflect() |
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{ |
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if ($this->target instanceof \Closure |
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|| (is_string($this->target) && function_exists($this->target)) |
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) { |
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return new \ReflectionFunction($this->target); |
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} |
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list($class, $method) = $this->target; |
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return new \ReflectionMethod($class, $method); |
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} |
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} |
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aaemnnosttv /
silk
