2023-02-24 12:17:03 -08:00

88 lines
2.4 KiB
TypeScript

/**
* Copyright (c) Microsoft Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import type { RawStack } from './stackTrace';
export type ZoneType = 'apiZone' | 'expectZone';
class ZoneManager {
lastZoneId = 0;
readonly _zones = new Map<number, Zone<any>>();
run<T, R>(type: ZoneType, data: T, func: (data: T) => R | Promise<R>): R | Promise<R> {
return new Zone<T>(this, ++this.lastZoneId, type, data).run(func);
}
zoneData<T>(type: ZoneType, rawStack: RawStack): T | null {
for (const line of rawStack) {
const index = line.indexOf('__PWZONE__[');
if (index !== -1) {
const zoneId = + line.substring(index + '__PWZONE__['.length, line.indexOf(']', index));
const zone = this._zones.get(zoneId);
if (zone && zone.type === type)
return zone.data;
}
}
return null;
}
}
class Zone<T> {
private _manager: ZoneManager;
readonly id: number;
readonly type: ZoneType;
data: T;
readonly wallTime: number;
constructor(manager: ZoneManager, id: number, type: ZoneType, data: T) {
this._manager = manager;
this.id = id;
this.type = type;
this.data = data;
this.wallTime = Date.now();
}
run<R>(func: (data: T) => R | Promise<R>): R | Promise<R> {
this._manager._zones.set(this.id, this);
Object.defineProperty(func, 'name', { value: `__PWZONE__[${this.id}]` });
return runWithFinally(() => func(this.data), () => {
this._manager._zones.delete(this.id);
});
}
}
export function runWithFinally<R>(func: () => R | Promise<R>, finallyFunc: Function): R | Promise<R> {
try {
const result = func();
if (result instanceof Promise) {
return result.then(r => {
finallyFunc();
return r;
}).catch(e => {
finallyFunc();
throw e;
});
}
finallyFunc();
return result;
} catch (e) {
finallyFunc();
throw e;
}
}
export const zones = new ZoneManager();