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perf(xterm): invalidate translated line cache once per mutation burst

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This commit is contained in:
Neil
2026-09-18 01:31:07 -07:00
parent 565cbd6c6d
commit faf50e2b41
1 changed files with 30 additions and 10 deletions
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config/patches/xterm-src/@xterm__xterm@6.1.0-beta.303.src.patch
+30 -10
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@@ -1280,7 +1280,9 @@ index 4984f3a49abe8437475c206db1345f5f5fe3979c..43fd5c5b286f23f11d407c9098062e97
* @deprecated
*/
public set(index: number, value: CharData): void {
+ this._cache = '';
+ if (this._cacheValid) {
+ this._cache = '';
+ }
this._cacheValid = false;
this._data[index * Constants.CELL_INDICIES + Cell.FG] = value[CHAR_DATA_ATTR_INDEX];
if (value[CHAR_DATA_CHAR_INDEX].length > 1) {
@@ -1297,7 +1299,9 @@ index 4984f3a49abe8437475c206db1345f5f5fe3979c..43fd5c5b286f23f11d407c9098062e97
* Set data at `index` to `cell`.
*/
public setCell(index: number, cell: ICellData): void {
+ this._cache = '';
+ if (this._cacheValid) {
+ this._cache = '';
+ }
this._cacheValid = false;
if (cell.content & Content.IS_COMBINED_MASK) {
this._combined[index] = cell.combinedData;
@@ -1319,7 +1323,9 @@ index 4984f3a49abe8437475c206db1345f5f5fe3979c..43fd5c5b286f23f11d407c9098062e97
* it gets an optimized access method.
*/
public setCellFromCodepoint(index: number, codePoint: number, width: number, attrs: IAttributeData): void {
+ this._cache = '';
+ if (this._cacheValid) {
+ this._cache = '';
+ }
this._cacheValid = false;
+ if ((this._data[index * Constants.CELL_INDICIES + Cell.CONTENT] & Content.IS_COMBINED_MASK)) {
+ delete this._combined[index];
@@ -1337,7 +1343,9 @@ index 4984f3a49abe8437475c206db1345f5f5fe3979c..43fd5c5b286f23f11d407c9098062e97
* by the previous `setDataFromCodePoint` call, we can omit it here.
*/
public addCodepointToCell(index: number, codePoint: number, width: number): void {
+ this._cache = '';
+ if (this._cacheValid) {
+ this._cache = '';
+ }
this._cacheValid = false;
let content = this._data[index * Constants.CELL_INDICIES + Cell.CONTENT];
if (content & Content.IS_COMBINED_MASK) {
@@ -1345,7 +1353,9 @@ index 4984f3a49abe8437475c206db1345f5f5fe3979c..43fd5c5b286f23f11d407c9098062e97
}
public insertCells(pos: number, n: number, fillCellData: ICellData): void {
+ this._cache = '';
+ if (this._cacheValid) {
+ this._cache = '';
+ }
this._cacheValid = false;
pos %= this.length;
@@ -1362,7 +1372,9 @@ index 4984f3a49abe8437475c206db1345f5f5fe3979c..43fd5c5b286f23f11d407c9098062e97
}
public deleteCells(pos: number, n: number, fillCellData: ICellData): void {
+ this._cache = '';
+ if (this._cacheValid) {
+ this._cache = '';
+ }
this._cacheValid = false;
pos %= this.length;
if (n < this.length - pos) {
@@ -1379,7 +1391,9 @@ index 4984f3a49abe8437475c206db1345f5f5fe3979c..43fd5c5b286f23f11d407c9098062e97
}
public replaceCells(start: number, end: number, fillCellData: ICellData, respectProtect: boolean = false): void {
+ this._cache = '';
+ if (this._cacheValid) {
+ this._cache = '';
+ }
this._cacheValid = false;
// full branching on respectProtect==true, hopefully getting fast JIT for standard case
if (respectProtect) {
@@ -1387,7 +1401,9 @@ index 4984f3a49abe8437475c206db1345f5f5fe3979c..43fd5c5b286f23f11d407c9098062e97
* excess memory (true after shrinking > Constants.CLEANUP_THRESHOLD).
*/
public resize(cols: number, fillCellData: ICellData): boolean {
+ this._cache = '';
+ if (this._cacheValid) {
+ this._cache = '';
+ }
this._cacheValid = false;
if (cols === this.length) {
return this._data.length * 4 * Constants.CLEANUP_THRESHOLD < this._data.buffer.byteLength;
@@ -1395,7 +1411,9 @@ index 4984f3a49abe8437475c206db1345f5f5fe3979c..43fd5c5b286f23f11d407c9098062e97
/** fill a line with fillCharData */
public fill(fillCellData: ICellData, respectProtect: boolean = false): void {
+ this._cache = '';
+ if (this._cacheValid) {
+ this._cache = '';
+ }
this._cacheValid = false;
// full branching on respectProtect==true, hopefully getting fast JIT for standard case
if (respectProtect) {
@@ -1403,7 +1421,9 @@ index 4984f3a49abe8437475c206db1345f5f5fe3979c..43fd5c5b286f23f11d407c9098062e97
}
public copyCellsFrom(src: BufferLine, srcCol: number, destCol: number, length: number, applyInReverse: boolean): void {
+ this._cache = '';
+ if (this._cacheValid) {
+ this._cache = '';
+ }
this._cacheValid = false;
const srcData = src._data;
if (applyInReverse) {