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cache findSheetByTitle lookups

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Horizontal42 2026-07-29 14:14:49 +03:00
parent c89242b626
commit ca6fa6d381
1 changed files with 13 additions and 1 deletions
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14
src/workspace.ts
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@ -28,6 +28,7 @@ export class Workspace {
private cache = new Map<string, SheetExports>();
private resolving: Set<string> = new Set();
private parsedRefsCache = new Map<string, { text: string; refs: string[] }>();
private titleCache: Map<string, SheetSource> | null = null;
constructor(private engine: SumEngine, private sheets: () => SheetSource[]) {}
@ -47,6 +48,7 @@ export class Workspace {
/** Drop cached exports for a sheet and everything that transitively depends on it. */
invalidate(sheetId: string): void {
this.titleCache = null;
const dirty = new Set<string>([sheetId]);
let changed = true;
while (changed) {
@ -67,6 +69,7 @@ export class Workspace {
}
invalidateAll(): void {
this.titleCache = null;
this.cache.clear();
this.parsedRefsCache.clear();
}
@ -105,7 +108,16 @@ export class Workspace {
private findSheetByTitle(title: string): SheetSource | undefined {
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 {