17     private $stack      = array();  variable in Mustache_Context
28             $this->stack = array($context);
39         array_push($this->stack, $value);
59         return array_pop($this->stack);
79         return end($this->stack);
99         return $this->findVariableInStack($id, $this->stack);
131         $value  = $this->findVariableInStack($first, $this->stack);
204      * @param array  $stack Context stack
208     private function findVariableInStack($id, array $stack)  argument
210         for ($i = count($stack) - 1; $i >= 0; $i--) {
211             $frame = &$stack[$i];