myersDiffAlgorithm.ts ×3

Frontier kind: Code frontier

unlabeled · c_bc98ca13433e

20 tests · 6421 LOC · 40 files · introduces 0 tests · 9 LOC · 1 file

Introduces — evidence that enters the hierarchy at this concept

Code: 3 ranges9 lines · 1 files
Tests: 0 tests

Contains — complete concept membership

All code (extent): 1062 ranges6421 lines · 40 files · Browse complete extent
All tests (intent): 20 testsBrowse complete intent

Neighbourhood graph

The orange circle is the focus. Violet and green circles are every ancestor and descendant, broader and narrower, at any distance; blue squares and pink diamonds are the introduced files and exact introduced tests of every visible concept, not only the focus's. Arrows point from broader to narrower concepts and bridge only concepts omitted from this view. Undirected links show source or test introduction. Concept and file size follows LOC; exact test nodes use test-count units.

Focus concept
Ancestors (broader)
Descendants (narrower)
Introduced files
Introduced tests

Introduced files, introduced tests, and structurally relevant concept specialization

In the embedded map, ordinary wheel input scrolls the page; use the visible controls to zoom and drag to pan. Open the full-screen map for canvas navigation: wheel pans, Ctrl/Command plus wheel zooms, and arrow keys pan when this region is focused. On touch screens, open the full-screen map to pan or pinch. If JavaScript or WebGL is unavailable, use the native relationship evidence on this page.

Native relationship evidence

Every exact file and test below is linked only from the concept that introduces it.

myersDiffAlgorithm.ts ×3 — Focused concept Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/algorithms/myersDiffAlgorithm.ts
heuristicSequenceOptimizations.ts ×1 — Ancestor (broader) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/heuristicSequenceOptimizations.ts
Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures noisy-move1-advanced|occurrence=1
fixtures.test|title=diffing fixtures difficult-move-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures difficult-move-advanced|occurrence=1
fixtures.test|title=diffing fixtures false-positive-move-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures false-positive-move-advanced|occurrence=1
fixtures.test|title=diffing fixtures sorted-offsets-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures sorted-offsets-advanced|occurrence=1
computeMovedLines.ts ×3 — Ancestor (broader) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/computeMovedLines.ts
fixtures.test|title=diffing fixtures bracket-aligning-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures bracket-aligning-advanced|occurrence=1
computeMovedLines.ts ×1 — Ancestor (broader) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/computeMovedLines.ts
Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures issue-185779-advanced|occurrence=1
fixtures.test|title=diffing fixtures ts-confusing-2-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures ts-confusing-2-advanced|occurrence=1
lineRange.ts ×1 — Ancestor (broader) Introduced files:
- src/vs/editor/common/core/ranges/lineRange.ts
computeMovedLines.ts ×1 — Ancestor (broader) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/computeMovedLines.ts
- src/vs/editor/common/diff/rangeMapping.ts
fixtures.test|title=diffing fixtures class-replacement-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures class-replacement-advanced|occurrence=1
fixtures.test|title=diffing fixtures method-splitting-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures method-splitting-advanced|occurrence=1
fixtures.test|title=diffing fixtures ts-example1-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures ts-example1-advanced|occurrence=1
lineRange.ts ×3 — Ancestor (broader) Introduced files:
- src/vs/editor/common/core/ranges/lineRange.ts
- src/vs/editor/common/diff/defaultLinesDiffComputer/computeMovedLines.ts
fixtures.test|title=diffing fixtures issue-201713-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures issue-201713-advanced|occurrence=1
fixtures.test|title=diffing fixtures noise-1-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures noise-1-advanced|occurrence=1
fixtures.test|title=diffing fixtures shifting-twice-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures shifting-twice-advanced|occurrence=1
computeMovedLines.ts ×1 — Ancestor (broader) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/computeMovedLines.ts
computeMovedLines.ts ×2 — Ancestor (broader) Introduced files:
- src/vs/editor/common/core/ranges/offsetRange.ts
- src/vs/editor/common/diff/defaultLinesDiffComputer/computeMovedLines.ts
myersDiffAlgorithm.ts ×1 — Ancestor (broader) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/algorithms/myersDiffAlgorithm.ts
fixtures.test|title=diffing fixtures ws-alignment-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures ws-alignment-advanced|occurrence=1
computeMovedLines.ts ×6 — Ancestor (broader) Introduced files:
- src/vs/editor/common/core/ranges/offsetRange.ts
- src/vs/editor/common/diff/defaultLinesDiffComputer/computeMovedLines.ts
fixtures.test|title=diffing fixtures noise-2-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures noise-2-advanced|occurrence=1
fixtures.test|title=diffing fixtures random-match-2-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures random-match-2-advanced|occurrence=1
linesSliceCharSequence.ts ×1 — Ancestor (broader) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/linesSliceCharSequence.ts
Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures invalid-diff-trimws-advanced|occurrence=1
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures test|occurrence=1
fixtures.test|title=diffing fixtures ts-too-much-minimization-advanced|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/fixtures.test|title=diffing fixtures ts-too-much-minimization-advanced|occurrence=1
myersDiffAlgorithm.ts ×1 — Ancestor (broader) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/algorithms/myersDiffAlgorithm.ts
- src/vs/editor/common/diff/defaultLinesDiffComputer/defaultLinesDiffComputer.ts
myersDiffAlgorithm.ts ×1 — Ancestor (broader) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/algorithms/myersDiffAlgorithm.ts
defaultLinesDiffComputer.test|title=myers 1|occurrence=1 — Ancestor (broader) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/editor/test/node/diffing/defaultLinesDiffComputer.test|title=myers 1|occurrence=1
myersDiffAlgorithm.ts ×1 — Ancestor (broader) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/algorithms/myersDiffAlgorithm.ts
myersDiffAlgorithm.ts ×13 — Ancestor (broader) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/algorithms/myersDiffAlgorithm.ts
linesSliceCharSequence.ts ×1 — Descendant (narrower) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/linesSliceCharSequence.ts
diffAlgorithm.ts ×1 — Descendant (narrower) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/algorithms/diffAlgorithm.ts
linesSliceCharSequence.ts ×1 — Descendant (narrower) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/linesSliceCharSequence.ts
linesSliceCharSequence.ts ×1 — Descendant (narrower) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/linesSliceCharSequence.ts
linesSliceCharSequence.ts ×4 — Descendant (narrower) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/linesSliceCharSequence.ts
diffAlgorithm.ts ×1 — Descendant (narrower) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/algorithms/diffAlgorithm.ts
diffAlgorithm.ts ×23 — Descendant (narrower) Introduced files:
- src/vs/editor/common/diff/defaultLinesDiffComputer/algorithms/diffAlgorithm.ts
- src/vs/editor/common/diff/defaultLinesDiffComputer/algorithms/dynamicProgrammingDiffing.ts
- src/vs/editor/common/diff/defaultLinesDiffComputer/algorithms/myersDiffAlgorithm.ts
- src/vs/editor/common/diff/defaultLinesDiffComputer/linesSliceCharSequence.ts
- src/vs/editor/common/diff/defaultLinesDiffComputer/utils.ts
rangeMapping.ts ×28 — Descendant (narrower) Introduced files:
- src/vs/editor/common/diff/rangeMapping.ts
textEdit.ts ×1 — Descendant (narrower) Introduced files:
- src/vs/editor/common/core/edits/textEdit.ts
textEdit.ts ×35 — Descendant (narrower) Introduced files:
- src/vs/editor/common/core/edits/textEdit.ts
abstractText.ts ×16 — Descendant (narrower) Introduced files:
- src/vs/editor/common/core/text/abstractText.ts
textLength.ts ×21 — Descendant (narrower) Introduced files:
- src/vs/editor/common/core/text/textLength.ts
positionToOffsetImpl.ts ×19 — Descendant (narrower) Introduced files:
- src/vs/editor/common/core/text/positionToOffsetImpl.ts
offsetRange.ts ×2 — Descendant (narrower) Introduced files:
- src/vs/editor/common/core/ranges/offsetRange.ts
strings.test|title=Strings trimWhitespace|occurrence=1 — Descendant (narrower) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/common/strings.test|title=Strings trimWhitespace|occurrence=1
strings.ts ×101 — Descendant (narrower) Introduced files:
- src/vs/base/common/cache.ts
- src/vs/base/common/strings.ts
lineRange.ts ×40 — Descendant (narrower) Introduced files:
- src/vs/editor/common/core/ranges/lineRange.ts
cancellation.test|title=CancellationToken None|occurrence=1 — Descendant (narrower) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/common/cancellation.test|title=CancellationToken None|occurrence=1
cancellation.ts ×18 — Descendant (narrower) Introduced files:
- src/vs/base/common/cancellation.ts
event.ts ×93 — Descendant (narrower) Introduced files:
- src/vs/base/common/event.ts
- src/vs/base/common/stopwatch.ts
range.ts ×1 — Descendant (narrower) Introduced files:
- src/vs/editor/common/core/range.ts
range.ts ×3 — Descendant (narrower) Introduced files:
- src/vs/editor/common/core/range.ts
range.ts ×40 — Descendant (narrower) Introduced files:
- src/vs/editor/common/core/range.ts
offsetRange.ts ×40 — Descendant (narrower) Introduced files:
- src/vs/editor/common/core/ranges/offsetRange.ts
position.ts ×16 — Descendant (narrower) Introduced files:
- src/vs/editor/common/core/position.ts
uri.test|title=URI URI#file, win-speciale|occurrence=1, charCode.test|title=CharCode has good values|occurrence=1, +2 — Descendant (narrower) Introduced tests:
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/common/charCode.test|title=CharCode has good values|occurrence=1
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/common/path.test|title=Paths (Node Implementation) path|occurrence=1
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/common/uri.test|title=URI File paths containing apostrophes break URI parsing and cannot be opened #276075|occurrence=1
- mocha:v1|namespace=vscode@05c208e9e28d8c1c723fa08f85e2b7a96092e8e5|file=vs/base/test/common/uri.test|title=URI URI#file, win-speciale|occurrence=1
utils.ts ×3 — Descendant (narrower) Introduced files:
- src/vs/base/test/common/utils.ts
linkedList.ts ×13 — Descendant (narrower) Introduced files:
- src/vs/base/common/linkedList.ts
lifecycle.ts ×2 — Descendant (narrower) Introduced files:
- src/vs/base/common/lifecycle.ts
lifecycle.ts ×1 — Descendant (narrower) Introduced files:
- src/vs/base/common/lifecycle.ts
lifecycle.ts ×4 — Descendant (narrower) Introduced files:
- src/vs/base/common/lifecycle.ts
lifecycle.ts ×6 — Descendant (narrower) Introduced files:
- src/vs/base/common/lifecycle.ts
lazy.ts ×1 — Descendant (narrower) Introduced files:
- src/vs/base/common/lazy.ts
lazy.ts ×3 — Descendant (narrower) Introduced files:
- src/vs/base/common/lazy.ts
lifecycle.ts ×1 — Descendant (narrower) Introduced files:
- src/vs/base/common/lifecycle.ts
lifecycle.ts ×1 — Descendant (narrower) Introduced files:
- src/vs/base/common/lifecycle.ts
uint.ts ×2 — Descendant (narrower) Introduced files:
- src/vs/base/common/uint.ts
arrays.ts ×1 — Descendant (narrower) Introduced files:
- src/vs/base/common/arrays.ts
lifecycle.ts ×1 — Descendant (narrower) Introduced files:
- src/vs/base/common/lifecycle.ts
map.ts ×97 — Descendant (narrower) Introduced files:
- src/vs/base/common/arrays.ts
- src/vs/base/common/arraysFind.ts
- src/vs/base/common/assert.ts
- src/vs/base/common/charCode.ts
- src/vs/base/common/collections.ts
- src/vs/base/common/errors.ts
- src/vs/base/common/functional.ts
- src/vs/base/common/iterator.ts
- src/vs/base/common/lifecycle.ts
- src/vs/base/common/map.ts
- src/vs/base/common/marshallingIds.ts
- src/vs/base/common/path.ts
- src/vs/base/common/platform.ts
- src/vs/base/common/process.ts
- src/vs/base/common/types.ts
- src/vs/base/common/uri.ts
- src/vs/base/test/common/utils.ts
- src/vs/nls.ts

Introduced tests

Every collected test enters the hierarchy at exactly one concept.

No tests are introduced at this concept. Its intent tests are introduced by other concepts.

Introduced code

Every collected source range enters the hierarchy at exactly one concept.

1 file ranked by introduced lines: 9 introduced LOC across 3 ranges. Expand a file to inspect source; the > gutter marks introduced lines.

src/vs/editor/common/diff/defaultLinesDiffComputer/algorithms/myersDiffAlgorithm.ts 9 introduced LOC · 3 ranges

Open complete file

  12
  
  export class MyersDiffAlgorithm implements IDiffAlgorithm {
  
  13
  
  	compute(seq1: ISequence, seq2: ISequence, timeout: ITimeout = InfiniteTimeout.instance): DiffAlgorithmResult {
  
  14
  >
  		// These are common special cases.
  
myersDiffAlgorithm.ts

  15
  >
  		// The early return improves performance dramatically.
  
  16
  >
  		if (seq1.length === 0 || seq2.length === 0) {
  
  17
  
  			return DiffAlgorithmResult.trivial(seq1, seq2);
  
  18
  
  		}

  38
  
  39
  
  		const paths = new FastArrayNegativeIndices<SnakePath | null>();
  
  40
  >
  		paths.set(0, V.get(0) === 0 ? null : new SnakePath(null, 0, 0, V.get(0)));
  
myersDiffAlgorithm.ts

  41
  >
  
  42
  >
  		let k = 0;
  
  43
  >
  
  44
  >
  		loop: while (true) {
  
  45
  
  			d++;
  
  46
  
  			if (!timeout.isValid()) {

  101
  
  		result.reverse();
  
  102
  
  		return new DiffAlgorithmResult(result, false);
  
  103
  >
  	}
  
myersDiffAlgorithm.ts

  104
  
  }
  
  105

myersDiffAlgorithm.ts ×3

Introduces — evidence that enters the hierarchy at this concept

Contains — complete concept membership

Neighbourhood graph

Introduced tests

Introduced code

Direct hierarchy

Parents

Children