| /** |
| * @license |
| * Copyright (C) 2020 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| import {CommentRange} from '../../../types/common'; |
| import {FILE, LineNumber} from './gr-diff-line'; |
| |
| /** |
| * Compare two ranges. Either argument may be falsy, but will only return |
| * true if both are falsy or if neither are falsy and have the same position |
| * values. |
| */ |
| export function rangesEqual(a?: CommentRange, b?: CommentRange): boolean { |
| if (!a && !b) { |
| return true; |
| } |
| if (!a || !b) { |
| return false; |
| } |
| return ( |
| a.start_line === b.start_line && |
| a.start_character === b.start_character && |
| a.end_line === b.end_line && |
| a.end_character === b.end_character |
| ); |
| } |
| |
| export function getLineNumber(lineEl?: Element | null): LineNumber | null { |
| if (!lineEl) return null; |
| const lineNumberStr = lineEl.getAttribute('data-value'); |
| if (!lineNumberStr) return null; |
| if (lineNumberStr === FILE) return FILE; |
| const lineNumber = Number(lineNumberStr); |
| return Number.isInteger(lineNumber) ? lineNumber : null; |
| } |
