15644705543

Committed 13 Jun 2025 09:58PM UTC coverage: 100.0%. Remained the same

Build # 15644705543

Build Type

push

github

Committed by

YuJianrong

Commit Message

chore: update Node.js version to 22.16.0 in GitHub Actions workflow

Run Details

143 of 147 branches covered (97.28%)

193 of 193 relevant lines covered (100.0%)

2010.82 hits per line

Source File
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100.0

/src/diff/apply.ts

import * as patch from './patch';

export type ApplyItem<T> =
  | patch.PatchItem<T>
  | {
      type: 'remove';
      oldPos: number;
      newPos: number;
      length: number;
    };

export type Apply<T> = ApplyItem<T>[];

export function applyPatch<T>(a: T[], patch: Apply<T>): T[] {
  const segments: T[][] = [];

  let sameStart = 0;

  for (let i = 0; i < patch.length; ++i) {
    const patchItem = patch[i];
    if (sameStart !== patchItem.oldPos) {
      segments.push(a.slice(sameStart, patchItem.oldPos));
    }
    if (patchItem.type === 'add') {
      segments.push(patchItem.items);
      sameStart = patchItem.oldPos;
    } else if ((<patch.PatchItem<T>>patchItem).items) {
      sameStart = patchItem.oldPos + (<patch.PatchItem<T>>patchItem).items.length;
    } else {
      sameStart = patchItem.oldPos + (<{ length: number }>patchItem).length;
    }
  }
  if (sameStart !== a.length) {
    segments.push(a.slice(sameStart));
  }

  return ([] as T[]).concat(...segments);
}

1	import * as patch from './patch';
2
3	export type ApplyItem<T> =
4	\| patch.PatchItem<T>
5	\| {
6	type: 'remove';
7	oldPos: number;
8	newPos: number;
9	length: number;
10	};
11
12	export type Apply<T> = ApplyItem<T>[];
13
14	export function applyPatch<T>(a: T[], patch: Apply<T>): T[] {	2✔
15	const segments: T[][] = [];	36✔
16
17	let sameStart = 0;	36✔
18
19	for (let i = 0; i < patch.length; ++i) {	36✔
20	const patchItem = patch[i];	72✔
21	if (sameStart !== patchItem.oldPos) {	72✔
22	segments.push(a.slice(sameStart, patchItem.oldPos));	36✔
23	}
24	if (patchItem.type === 'add') {	72✔
25	segments.push(patchItem.items);	32✔
26	sameStart = patchItem.oldPos;	32✔
27	} else if ((<patch.PatchItem<T>>patchItem).items) {	40✔
28	sameStart = patchItem.oldPos + (<patch.PatchItem<T>>patchItem).items.length;	21✔
29	} else {
30	sameStart = patchItem.oldPos + (<{ length: number }>patchItem).length;	19✔
31	}
32	}
33	if (sameStart !== a.length) {	36✔
34	segments.push(a.slice(sameStart));	12✔
35	}
36
37	return ([] as T[]).concat(...segments);	36✔
38	}

YuJianrong / fast-array-diff / 15644705543

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