Neos.Fusion/Classes/Core/Runtime.php
public function pushContext($key, $context)
    {
        $newContext = $this->getCurrentContext();
        $newContext[$key] = $context;
        $this->contextStack[] = $newContext;
    }
public function pushContext($key, $context)
    {
        $newContext = $this->getCurrentContext();
        $newContext[$key] = $context;
        $this->contextStack[] = $newContext;
    }
public function pushContext ( $ key , $ context ) { $ newContext = $ this -> getCurrentContext ( ) ; $ newContext [ $ key ] = $ context ; $ this -> contextStack [ ] = $ newContext ; }
Push a new context object to the rendering stack

@param string $key the key inside the context
@param mixed $context
@return void
Push a new context object to the rendering stack