vscode/src/vs/workbench/api/common/cache.ts

40 lines
1 KiB
TypeScript

/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
export class Cache<T> {
private static readonly enableDebugLogging = false;
private readonly _data = new Map<number, readonly T[]>();
private _idPool = 1;
constructor(
private readonly id: string
) { }
add(item: readonly T[]): number {
const id = this._idPool++;
this._data.set(id, item);
this.logDebugInfo();
return id;
}
get(pid: number, id: number): T | undefined {
return this._data.has(pid) ? this._data.get(pid)![id] : undefined;
}
delete(id: number) {
this._data.delete(id);
this.logDebugInfo();
}
private logDebugInfo() {
if (!Cache.enableDebugLogging) {
return;
}
console.log(`${this.id} cache size - ${this._data.size}`);
}
}