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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { URI } from 'vscode-uri';
type ResourceToKey = (uri: URI) => string;
const defaultResourceToKey = (resource: URI): string => resource.toString();
export class ResourceMap<T> {
private readonly map = new Map<string, { readonly uri: URI; readonly value: T }>();
private readonly toKey: ResourceToKey;
constructor(toKey: ResourceToKey = defaultResourceToKey) {
this.toKey = toKey;
}
public set(uri: URI, value: T): this {
this.map.set(this.toKey(uri), { uri, value });
return this;
}
public get(resource: URI): T | undefined {
return this.map.get(this.toKey(resource))?.value;
}
public has(resource: URI): boolean {
return this.map.has(this.toKey(resource));
}
public get size(): number {
return this.map.size;
}
public clear(): void {
this.map.clear();
}
public delete(resource: URI): boolean {
return this.map.delete(this.toKey(resource));
}
public *values(): IterableIterator<T> {
for (const entry of this.map.values()) {
yield entry.value;
}
}
public *keys(): IterableIterator<URI> {
for (const entry of this.map.values()) {
yield entry.uri;
}
}
public *entries(): IterableIterator<[URI, T]> {
for (const entry of this.map.values()) {
yield [entry.uri, entry.value];
}
}
public [Symbol.iterator](): IterableIterator<[URI, T]> {
return this.entries();
}
}
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