| 58 | } |
| 59 | |
| 60 | export function union(a: Range, b: Range): Range { |
| 61 | let start: Position; |
| 62 | if (a.start.line === b.start.line) { |
| 63 | start = { |
| 64 | line: a.start.line, |
| 65 | character: Math.min(a.start.character, b.start.character), |
| 66 | }; |
| 67 | } else if (a.start.line < b.start.line) start = a.start; |
| 68 | else start = b.start; |
| 69 | |
| 70 | let end: Position; |
| 71 | if (a.end.line === b.end.line) { |
| 72 | end = { |
| 73 | line: a.end.line, |
| 74 | character: Math.max(a.end.character, b.end.character), |
| 75 | }; |
| 76 | } else if (a.end.line > b.end.line) end = a.end; |
| 77 | else end = b.end; |
| 78 | |
| 79 | return { |
| 80 | start, |
| 81 | end, |
| 82 | }; |
| 83 | } |
| 84 | |
| 85 | export function maxPosition(a: Position, b: Position): Position { |
| 86 | if (a.line > b.line) { |