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/*
* This file is part of the ICanBoogie package.
*
* (c) Olivier Laviale <olivier.laviale@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace ICanBoogie;
/**
* Patchable helpers of the ICanBoogie package.
*/
class Helpers
{
static private $jumptable = [
'generate_token' => [ __CLASS__, 'generate_token' ]
];
/**
* Calls the callback of a patchable function.
*
* @param string $name Name of the function.
* @param array $arguments Arguments.
*
* @return mixed
*/
static public function __callstatic($name, array $arguments)
{
return call_user_func_array(self::$jumptable[$name], $arguments);
}
/**
* Patches a patchable function.
*
* @param string $name Name of the function.
* @param callable $callback Callback.
*
* @throws \RuntimeException is attempt to patch an undefined function.
*
* @codeCoverageIgnore
*/
static public function patch($name, $callback)
{
if (empty(self::$jumptable[$name]))
{
throw new \RuntimeException("Undefined patchable: $name.");
}
self::$jumptable[$name] = $callback;
}
/*
* Default implementations
*/
static private function generate_token($length=8, $possible=TOKEN_NARROW)
{
$token = '';
$y = strlen($possible) - 1;
while ($length--)
{
$i = mt_rand(0, $y);
$token .= $possible[$i];
}
return $token;
}
}