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beforeEditPositionMapper.ts ×11

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unlabeled · c_701f8acbf255

870 tests · 5859 LOC · 33 files · introduces 0 tests · 68 LOC · 1 file

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Code
11 ranges68 lines · 1 files
Tests
0 tests

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917 ranges5859 lines · 33 files · Browse complete extent
All tests (intent)
870 testsBrowse complete intent

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1 file ranked by introduced lines: 68 introduced LOC across 11 ranges. Expand a file to inspect source; the > gutter marks introduced lines.

src/vs/editor/common/model/bracketPairsTextModelPart/bracketPairsTree/beforeEditPositionMapper.ts 68 introduced LOC · 11 ranges

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1 > /*--------------------------------------------------------------------------------------------- beforeEditPositionMapper.ts
2 > * Copyright (c) Microsoft Corporation. All rights reserved.
3 > * Licensed under the MIT License. See License.txt in the project root for license information.
4 > *--------------------------------------------------------------------------------------------*/
5 >
6 > import { Range } from '../../../core/range.js';
7 > import { Length, lengthAdd, lengthDiffNonNegative, lengthLessThanEqual, lengthOfString, lengthToObj, positionToLength, toLength } from './length.js';
8 > import { TextLength } from '../../../core/text/textLength.js';
9 > import { IModelContentChange } from '../../mirrorTextModel.js';
10 >
11 > export class TextEditInfo {
12 > public static fromModelContentChanges(changes: IModelContentChange[]): TextEditInfo[] {
13 > // Must be sorted in ascending order
14 > const edits = changes.map(c => {
15 > const range = Range.lift(c.range);
16 > return new TextEditInfo(
17 > positionToLength(range.getStartPosition()),
18 > positionToLength(range.getEndPosition()),
19 > lengthOfString(c.text)
20 > );
21 > }).reverse();
22 > return edits;
23 > }
24 >
25 > constructor(
26 public readonly startOffset: Length,
27 public readonly endOffset: Length,
29 ) {
30 }
31 > beforeEditPositionMapper.ts
32 > toString(): string {
33 return `[${lengthToObj(this.startOffset)}...${lengthToObj(this.endOffset)}) -> ${lengthToObj(this.newLength)}`;
34 }
35 > } beforeEditPositionMapper.ts
36 >
37 > export class BeforeEditPositionMapper {
38 > private nextEditIdx = 0;
39 > private deltaOldToNewLineCount = 0;
40 > private deltaOldToNewColumnCount = 0;
41 > private deltaLineIdxInOld = -1;
42 > private readonly edits: readonly TextEditInfoCache[];
43 >
44 > /**
45 > * @param edits Must be sorted by offset in ascending order.
46 > */
47 > constructor(
48 edits: readonly TextEditInfo[],
49 ) {
50 this.edits = edits.map(edit => TextEditInfoCache.from(edit));
51 }
52 > beforeEditPositionMapper.ts
53 > /**
54 > * @param offset Must be equal to or greater than the last offset this method has been called with.
55 > */
56 > getOffsetBeforeChange(offset: Length): Length {
57 this.adjustNextEdit(offset);
58 return this.translateCurToOld(offset);
59 }
60 > beforeEditPositionMapper.ts
61 > /**
62 > * @param offset Must be equal to or greater than the last offset this method has been called with.
63 > * Returns null if there is no edit anymore.
64 > */
65 > getDistanceToNextChange(offset: Length): Length | null {
66 this.adjustNextEdit(offset);
67
74 return lengthDiffNonNegative(offset, nextChangeOffset);
75 }
76 > beforeEditPositionMapper.ts
77 > private translateOldToCur(oldOffsetObj: TextLength): Length {
78 if (oldOffsetObj.lineCount === this.deltaLineIdxInOld) {
79 return toLength(oldOffsetObj.lineCount + this.deltaOldToNewLineCount, oldOffsetObj.columnCount + this.deltaOldToNewColumnCount);
82 }
83 }
84 > beforeEditPositionMapper.ts
85 > private translateCurToOld(newOffset: Length): Length {
86 const offsetObj = lengthToObj(newOffset);
87 if (offsetObj.lineCount - this.deltaOldToNewLineCount === this.deltaLineIdxInOld) {
91 }
92 }
93 > beforeEditPositionMapper.ts
94 > private adjustNextEdit(offset: Length) {
95 while (this.nextEditIdx < this.edits.length) {
96 const nextEdit = this.edits[this.nextEditIdx];
121 }
122 }
123 > } beforeEditPositionMapper.ts
124 >
125 > class TextEditInfoCache {
126 > static from(edit: TextEditInfo): TextEditInfoCache {
127 return new TextEditInfoCache(edit.startOffset, edit.endOffset, edit.newLength);
128 }
129 > beforeEditPositionMapper.ts
130 > public readonly endOffsetBeforeObj: TextLength;
131 > public readonly endOffsetAfterObj: TextLength;
132 > public readonly offsetObj: TextLength;
133 >
134 > constructor(
135 startOffset: Length,
136 endOffset: Length,

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