Flow\Parser::parseFunctionCallExpression PHP Method

    protected function parseFunctionCallExpression($node)
    {
        $line = $this->stream->getCurrentToken()->getLine();
        $this->stream->expect(Token::OPERATOR, '(');
        $args = array();
        while (!$this->stream->test(Token::OPERATOR, ')')) {
            if (!empty($args)) {
                $this->stream->expect(Token::OPERATOR, ',');
                if ($this->stream->test(Token::OPERATOR, ')')) {
                    break;
                }
            }
            $args[] = $this->parseExpression();
        }
        $this->stream->expect(Token::OPERATOR, ')');
        return new Expression\FunctionCallExpression($node, $args, $line);
    }