parseDirectivePrologues example

    protected function parseStatementList(
        $parseDirectivePrologues = false
    ) {
        $items = array();
        
        //Get directive prologues and check if strict mode is present         if ($parseDirectivePrologues) {
            $oldStrictMode = $this->scanner->getStrictMode();
            if ($directives = $this->parseDirectivePrologues()) {
                $items = array_merge($items, $directives[0]);
                //If "use strict" is present enable scanner strict mode                 if (in_array("use strict", $directives[1])) {
                    $this->scanner->setStrictMode(true);
                }
            }
        }
        
        while ($item = $this->parseStatementListItem()) {
            $items[] = $item;
        }