MacroNode example

$body = $this->parser->subparse([$this, 'decideBlockEnd'], true);
        if ($token = $stream->nextIf(/* Token::NAME_TYPE */ 5)) {
            $value = $token->getValue();

            if ($value != $name) {
                throw new SyntaxError(sprintf('Expected endmacro for macro "%s" (but "%s" given).', $name, $value), $stream->getCurrent()->getLine(), $stream->getSourceContext());
            }
        }
        $this->parser->popLocalScope();
        $stream->expect(/* Token::BLOCK_END_TYPE */ 3);

        $this->parser->setMacro($name, new MacroNode($name, new BodyNode([$body]), $arguments, $lineno, $this->getTag()));

        return new Node();
    }

    public function decideBlockEnd(Token $token): bool
    {
        return $token->test('endmacro');
    }

    public function getTag(): string
    {