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Optimize findSheetByTitle lookup

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Co-authored-by: Horizontal42 <75383519+Horizontal42@users.noreply.github.com>
This commit is contained in:
google-labs-jules[bot] 2026-07-28 23:52:53 +00:00
parent f5b1fc038b
commit 35eaa57527
1 changed files with 13 additions and 1 deletions
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14
src/workspace.ts
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@ -27,6 +27,7 @@ export class Workspace {
private cache = new Map<string, SheetExports>(); private cache = new Map<string, SheetExports>();
private resolving: Set<string> = new Set(); private resolving: Set<string> = new Set();
private parsedRefsCache = new Map<string, { text: string; refs: string[] }>(); private parsedRefsCache = new Map<string, { text: string; refs: string[] }>();
private titleCache: Map<string, SheetSource> | null = null;
constructor(private engine: SumEngine, private sheets: () => SheetSource[]) {} constructor(private engine: SumEngine, private sheets: () => SheetSource[]) {}
@ -42,6 +43,7 @@ export class Workspace {
/** Drop cached exports for a sheet and everything that transitively depends on it. */ /** Drop cached exports for a sheet and everything that transitively depends on it. */
invalidate(sheetId: string): void { invalidate(sheetId: string): void {
this.titleCache = null;
const dirty = new Set<string>([sheetId]); const dirty = new Set<string>([sheetId]);
let changed = true; let changed = true;
while (changed) { while (changed) {
@ -62,6 +64,7 @@ export class Workspace {
} }
invalidateAll(): void { invalidateAll(): void {
this.titleCache = null;
this.cache.clear(); this.cache.clear();
this.parsedRefsCache.clear(); this.parsedRefsCache.clear();
} }
@ -100,7 +103,16 @@ export class Workspace {
private findSheetByTitle(title: string): SheetSource | undefined { private findSheetByTitle(title: string): SheetSource | undefined {
const needle = title.trim().toLowerCase(); const needle = title.trim().toLowerCase();
return this.sheets().find((s) => s.title.trim().toLowerCase() === needle); if (this.titleCache === null) {
this.titleCache = new Map();
for (const s of this.sheets()) {
const key = s.title.trim().toLowerCase();
if (!this.titleCache.has(key)) {
this.titleCache.set(key, s);
}
}
}
return this.titleCache.get(needle);
} }
private resolveXRef(sheetTitle: string, key: string): XRefResolution { private resolveXRef(sheetTitle: string, key: string): XRefResolution {