/usr/share/php/Nette/common/Callback.php is in php-nette 2.1.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* This file is part of the Nette Framework (http://nette.org)
* Copyright (c) 2004 David Grudl (http://davidgrudl.com)
*/
namespace Nette;
use Nette;
/**
* @deprecated
*/
class Callback extends Object
{
/** @var callable */
private $cb;
/**
* Factory. Workaround for missing (new Callback)->invoke() in PHP 5.3.
* @param mixed class, object, callable
* @param string method
* @return Callback
*/
public static function create($callback, $m = NULL)
{
return new self($callback, $m);
}
/**
* @param mixed class, object, callable
* @param string method
*/
public function __construct($cb, $m = NULL)
{
if ($m !== NULL) {
$cb = array($cb, $m);
} elseif ($cb instanceof self) { // prevents wrapping itself
$this->cb = $cb->cb;
return;
}
if (!is_callable($cb, TRUE)) {
throw new InvalidArgumentException("Invalid callback.");
}
$this->cb = $cb;
}
/**
* Invokes callback. Do not call directly.
* @return mixed
*/
public function __invoke()
{
if (!is_callable($this->cb)) {
throw new InvalidStateException("Callback '$this' is not callable.");
}
return call_user_func_array($this->cb, func_get_args());
}
/**
* Invokes callback.
* @return mixed
*/
public function invoke()
{
if (!is_callable($this->cb)) {
throw new InvalidStateException("Callback '$this' is not callable.");
}
return call_user_func_array($this->cb, func_get_args());
}
/**
* Invokes callback with an array of parameters.
* @param array
* @return mixed
*/
public function invokeArgs(array $args)
{
if (!is_callable($this->cb)) {
throw new InvalidStateException("Callback '$this' is not callable.");
}
return call_user_func_array($this->cb, $args);
}
/**
* Verifies that callback can be called.
* @return bool
*/
public function isCallable()
{
return is_callable($this->cb);
}
/**
* Returns PHP callback pseudotype.
* @return string|array|\Closure
*/
public function getNative()
{
return $this->cb;
}
/**
* Returns callback reflection.
* @return Nette\Reflection\GlobalFunction|Nette\Reflection\Method
*/
public function toReflection()
{
if (is_string($this->cb) && strpos($this->cb, '::')) {
return new Nette\Reflection\Method($this->cb);
} elseif (is_array($this->cb)) {
return new Nette\Reflection\Method($this->cb[0], $this->cb[1]);
} elseif (is_object($this->cb) && !$this->cb instanceof \Closure) {
return new Nette\Reflection\Method($this->cb, '__invoke');
} else {
return new Nette\Reflection\GlobalFunction($this->cb);
}
}
/**
* @return bool
*/
public function isStatic()
{
return is_array($this->cb) ? is_string($this->cb[0]) : is_string($this->cb);
}
/**
* Duplicates the callback with a new bound object.
* @return Callback
*/
public function bindTo($newthis)
{
if (is_string($this->cb) && strpos($this->cb, '::')) {
$this->cb = explode('::', $this->cb);
} elseif (!is_array($this->cb)) {
throw new InvalidStateException("Callback '$this' have not any bound object.");
}
return new static($newthis, $this->cb[1]);
}
/**
* @return string
*/
public function __toString()
{
if ($this->cb instanceof \Closure) {
return '{closure}';
} elseif (is_string($this->cb) && $this->cb[0] === "\0") {
return '{lambda}';
} else {
is_callable($this->cb, TRUE, $textual);
return $textual;
}
}
}
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