Vihren Atlas

diff.ts ×7

Code frontier

unlabeled · c_f9586309aaed

28 tests · 7987 LOC · 43 files · introduces 0 tests · 30 LOC · 1 file

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Code
7 ranges30 lines · 1 files
Tests
0 tests

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All code (extent)
1285 ranges7987 lines · 43 files · Browse complete extent
All tests (intent)
28 testsBrowse complete intent

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Introduced files, introduced tests, and structurally relevant concept specialization

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Introduced tests

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Introduced code

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1 file ranked by introduced lines: 30 introduced LOC across 7 ranges. Expand a file to inspect source; the > gutter marks introduced lines.

src/vs/base/common/diff/diff.ts 30 introduced LOC · 7 ranges

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934 // Avoid wasting a lot of time with these searches
935 if (matchedLength < 5 && abOriginalLength < 20 && abModifiedLength < 20) {
936 > const t = this._findBetterContiguousSequence( diff.ts
937 > aOriginalStart, abOriginalLength,
938 > aModifiedStart, abModifiedLength,
939 > matchedLength
940 > );
941 > if (t) {
942 const [originalMatchStart, modifiedMatchStart] = t;
943 if (originalMatchStart !== aChange.originalStart + aChange.originalLength || modifiedMatchStart !== aChange.modifiedStart + aChange.modifiedLength) {
951 }
952 }
953 > } diff.ts
954 }
955 }
959
960 private _findBetterContiguousSequence(originalStart: number, originalLength: number, modifiedStart: number, modifiedLength: number, desiredLength: number): [number, number] | null {
961 > if (originalLength < desiredLength || modifiedLength < desiredLength) { diff.ts
962 return null;
963 }
964 > const originalMax = originalStart + originalLength - desiredLength + 1; diff.ts
965 > const modifiedMax = modifiedStart + modifiedLength - desiredLength + 1;
966 > let bestScore = 0;
967 > let bestOriginalStart = 0;
968 > let bestModifiedStart = 0;
969 > for (let i = originalStart; i < originalMax; i++) {
970 > for (let j = modifiedStart; j < modifiedMax; j++) {
971 > const score = this._contiguousSequenceScore(i, j, desiredLength);
972 > if (score > 0 && score > bestScore) {
973 bestScore = score;
974 bestOriginalStart = i;
975 bestModifiedStart = j;
976 }
977 > } diff.ts
978 > }
979 > if (bestScore > 0) {
980 return [bestOriginalStart, bestModifiedStart];
981 }
982 return null;
983 > } diff.ts
984
985 private _contiguousSequenceScore(originalStart: number, modifiedStart: number, length: number): number {
986 > let score = 0; diff.ts
987 > for (let l = 0; l < length; l++) {
988 > if (!this.ElementsAreEqual(originalStart + l, modifiedStart + l)) {
989 > return 0;
990 > }
991 > score += this._originalStringElements[originalStart + l].length;
992 > }
993 > return score;
994 > }
995
996 private _OriginalIsBoundary(index: number): boolean {

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