()
| 671 | // 7.7 Punctuators |
| 672 | |
| 673 | function scanPunctuator() { |
| 674 | var token, str; |
| 675 | |
| 676 | token = { |
| 677 | type: Token.Punctuator, |
| 678 | value: '', |
| 679 | lineNumber: lineNumber, |
| 680 | lineStart: lineStart, |
| 681 | start: index, |
| 682 | end: index |
| 683 | }; |
| 684 | |
| 685 | // Check for most common single-character punctuators. |
| 686 | str = source[index]; |
| 687 | switch (str) { |
| 688 | |
| 689 | case '(': |
| 690 | if (extra.tokenize) { |
| 691 | extra.openParenToken = extra.tokens.length; |
| 692 | } |
| 693 | ++index; |
| 694 | break; |
| 695 | |
| 696 | case '{': |
| 697 | if (extra.tokenize) { |
| 698 | extra.openCurlyToken = extra.tokens.length; |
| 699 | } |
| 700 | ++index; |
| 701 | break; |
| 702 | |
| 703 | case '.': |
| 704 | ++index; |
| 705 | if (source[index] === '.' && source[index + 1] === '.') { |
| 706 | // Spread operator: ... |
| 707 | index += 2; |
| 708 | str = '...'; |
| 709 | } |
| 710 | break; |
| 711 | |
| 712 | case ')': |
| 713 | case ';': |
| 714 | case ',': |
| 715 | case '}': |
| 716 | case '[': |
| 717 | case ']': |
| 718 | case ':': |
| 719 | case '?': |
| 720 | case '~': |
| 721 | ++index; |
| 722 | break; |
| 723 | |
| 724 | default: |
| 725 | // 4-character punctuator. |
| 726 | str = source.substr(index, 4); |
| 727 | if (str === '>>>=') { |
| 728 | index += 4; |
| 729 | } else { |
| 730 |
no test coverage detected