smarty 2.6.2 : Fatal error: Call to undefined function: _compile_template() ????

hi,


i have a plugin where i wrote :

function smarty_function_traducteur2($params, &$this)
{
extract($params);
$trad = new translate;
$this->_compile_template("evaluated template",
$trad->traducteur($VERBOSE), $source);
eval('?>' . $source);
}


in smarty 2,6,2 it generates an error:
Fatal error: Call to undefined function: _compile_template()

why?


a way to correct this?

thanks