SetNode example

if (\count($names) > 1) {
                throw new SyntaxError('When using set with a block, you cannot have a multi-target.', $stream->getCurrent()->getLine(), $stream->getSourceContext());
            }

            $stream->expect(/* Token::BLOCK_END_TYPE */ 3);

            $values = $this->parser->subparse([$this, 'decideBlockEnd'], true);
            $stream->expect(/* Token::BLOCK_END_TYPE */ 3);
        }

        return new SetNode($capture, $names, $values, $lineno, $this->getTag());
    }

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

    public function getTag(): string
    {
        return 'set';
    }
}

$ref = new TempNameExpression($name, $lineno);
        $ref->setAttribute('always_defined', true);

        $filter = $this->parser->getExpressionParser()->parseFilterExpressionRaw($ref, $this->getTag());

        $this->parser->getStream()->expect(Token::BLOCK_END_TYPE);
        $body = $this->parser->subparse([$this, 'decideApplyEnd'], true);
        $this->parser->getStream()->expect(Token::BLOCK_END_TYPE);

        return new Node([
            new SetNode(true, $ref, $body, $lineno, $this->getTag()),
            new PrintNode($filter, $lineno, $this->getTag()),
        ]);
    }

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

    public function getTag(): string
    {