uuf6429 / expression-language-arrowfunc

        $this->stream = $stream;

        $node = $this->parseExpression();

        if (!$stream->isEOF()) {

            throw new SyntaxError(

                sprintf(

                    'Unexpected token "%s" of value "%s"',

                    $stream->current->type,

                    $stream->current->value

                ),

                $stream->current->cursor

            );

        }

        return $node;

    }

                $this->stream->next();

            } elseif ($this->stream->current->test(Token::PUNCTUATION_TYPE, '(')) {

                $key = $this->parseExpression();

            } else {

                $current = $this->stream->current;

                throw new SyntaxError(sprintf('A hash key must be a quoted string, a number, a name, or an expression enclosed in parentheses (unexpected token "%s" of value "%s"', $current->type, $current->value), $current->cursor);

            }

            $this->stream->expect(Token::PUNCTUATION_TYPE, ':', 'A hash key must be followed by a colon (:)');

            $value = $this->parseExpression();