Current Path : C:/xampp/htdocs/moodle/lib/mustache/src/Mustache/ |
Current File : C:/xampp/htdocs/moodle/lib/mustache/src/Mustache/HelperCollection.php |
<?php /* * This file is part of Mustache.php. * * (c) 2010-2017 Justin Hileman * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ /** * A collection of helpers for a Mustache instance. */ class Mustache_HelperCollection { private $helpers = array(); /** * Helper Collection constructor. * * Optionally accepts an array (or Traversable) of `$name => $helper` pairs. * * @throws Mustache_Exception_InvalidArgumentException if the $helpers argument isn't an array or Traversable * * @param array|Traversable $helpers (default: null) */ public function __construct($helpers = null) { if ($helpers === null) { return; } if (!is_array($helpers) && !$helpers instanceof Traversable) { throw new Mustache_Exception_InvalidArgumentException('HelperCollection constructor expects an array of helpers'); } foreach ($helpers as $name => $helper) { $this->add($name, $helper); } } /** * Magic mutator. * * @see Mustache_HelperCollection::add * * @param string $name * @param mixed $helper */ public function __set($name, $helper) { $this->add($name, $helper); } /** * Add a helper to this collection. * * @param string $name * @param mixed $helper */ public function add($name, $helper) { $this->helpers[$name] = $helper; } /** * Magic accessor. * * @see Mustache_HelperCollection::get * * @param string $name * * @return mixed Helper */ public function __get($name) { return $this->get($name); } /** * Get a helper by name. * * @throws Mustache_Exception_UnknownHelperException If helper does not exist * * @param string $name * * @return mixed Helper */ public function get($name) { if (!$this->has($name)) { throw new Mustache_Exception_UnknownHelperException($name); } return $this->helpers[$name]; } /** * Magic isset(). * * @see Mustache_HelperCollection::has * * @param string $name * * @return bool True if helper is present */ public function __isset($name) { return $this->has($name); } /** * Check whether a given helper is present in the collection. * * @param string $name * * @return bool True if helper is present */ public function has($name) { return array_key_exists($name, $this->helpers); } /** * Magic unset(). * * @see Mustache_HelperCollection::remove * * @param string $name */ public function __unset($name) { $this->remove($name); } /** * Check whether a given helper is present in the collection. * * @throws Mustache_Exception_UnknownHelperException if the requested helper is not present * * @param string $name */ public function remove($name) { if (!$this->has($name)) { throw new Mustache_Exception_UnknownHelperException($name); } unset($this->helpers[$name]); } /** * Clear the helper collection. * * Removes all helpers from this collection */ public function clear() { $this->helpers = array(); } /** * Check whether the helper collection is empty. * * @return bool True if the collection is empty */ public function isEmpty() { return empty($this->helpers); } }