ts-raii-scope/dist/disposableResource.js

TypeScript RAII proof of concept

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const utils_1 = require("./utils");
class DisposableResource {
    constructor(innerResource, disposeCallback) {
        this._innerResource = innerResource;
        this._disposeCallback = disposeCallback;
        this._isDisposed = false;
    }
    // noinspection JSUnusedGlobalSymbols
    dispose() {
        if (this._isDisposed === false) {
            this._isDisposed = undefined;
            const disposeResult = this._disposeCallback(this._innerResource);
            if (utils_1.isPromise(disposeResult)) {
                return disposeResult.then(this.finishDisposing.bind(this));
            }
            this.finishDisposing();
        }
    }
    // noinspection JSUnusedGlobalSymbols
    /**
     * Returns undefined if dispose in progress
     */
    isDisposed() {
        return this._isDisposed;
    }
    finishDisposing() {
        delete this._innerResource;
        this._isDisposed = true;
    }
}
exports.DisposableResource = DisposableResource;