@keawade/using/dist/using.js

Using implementation for disposable resources.

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __generator = (this && this.__generator) || function (thisArg, body) {
    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
    function verb(n) { return function (v) { return step([n, v]); }; }
    function step(op) {
        if (f) throw new TypeError("Generator is already executing.");
        while (_) try {
            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
            if (y = 0, t) op = [op[0] & 2, t.value];
            switch (op[0]) {
                case 0: case 1: t = op; break;
                case 4: _.label++; return { value: op[1], done: false };
                case 5: _.label++; y = op[1]; op = [0]; continue;
                case 7: op = _.ops.pop(); _.trys.pop(); continue;
                default:
                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
                    if (t[2]) _.ops.pop();
                    _.trys.pop(); continue;
            }
            op = body.call(thisArg, _);
        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
    }
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.using = void 0;
var util_1 = require("util");
/**
 * Provides a convenient syntax that ensures the correct use of Disposable objects
 *
 * @param resource - Resource to dispose or destroy after using
 * @param usingFunction - Resource use context
 * @param options.key - Key of disposing function
 * @param options.throwOnError - Enable throw on error
 */
var using = function (resource, usingFunction, options) {
    if (options === void 0) { options = {}; }
    return __awaiter(void 0, void 0, void 0, function () {
        var key_1, _a;
        var _b;
        return __generator(this, function (_c) {
            switch (_c.label) {
                case 0:
                    _c.trys.push([0, , 2, 13]);
                    return [4 /*yield*/, usingFunction(resource)];
                case 1: return [2 /*return*/, _c.sent()];
                case 2:
                    key_1 = (_b = options.key) !== null && _b !== void 0 ? _b : 'dispose';
                    _a = key_1;
                    switch (_a) {
                        case 'dispose': return [3 /*break*/, 3];
                        case 'destroy': return [3 /*break*/, 8];
                    }
                    return [3 /*break*/, 12];
                case 3:
                    if (!isDisposable(resource)) return [3 /*break*/, 5];
                    return [4 /*yield*/, resource.dispose()];
                case 4:
                    _c.sent();
                    return [3 /*break*/, 7];
                case 5: return [4 /*yield*/, Promise.all(Object.values(resource).map(function (resourceKey) {
                        if (isDisposable(resourceKey)) {
                            return resourceKey.dispose();
                        }
                        if (options.throwOnError) {
                            throwError(resource, key_1);
                        }
                    }))];
                case 6:
                    _c.sent();
                    _c.label = 7;
                case 7: return [3 /*break*/, 12];
                case 8:
                    if (!isDestroyable(resource)) return [3 /*break*/, 10];
                    return [4 /*yield*/, resource.destroy()];
                case 9:
                    _c.sent();
                    return [3 /*break*/, 12];
                case 10: return [4 /*yield*/, Promise.all(Object.values(resource).map(function (resourceKey) {
                        if (isDestroyable(resourceKey)) {
                            return resourceKey.destroy();
                        }
                        if (options.throwOnError) {
                            throwError(resource, key_1);
                        }
                    }))];
                case 11:
                    _c.sent();
                    _c.label = 12;
                case 12: return [7 /*endfinally*/];
                case 13: return [2 /*return*/];
            }
        });
    });
};
exports.using = using;
var isDisposable = function (resource) {
    return (typeof resource.dispose !== 'undefined' &&
        typeof resource.dispose === 'function');
};
var isDestroyable = function (resource) {
    return (typeof resource.destroy !== 'undefined' &&
        typeof resource.destroy === 'function');
};
// eslint-disable-next-line @typescript-eslint/no-explicit-any
var throwError = function (resource, action) {
    throw new Error("Unable to " + action + " resource '" + (0, util_1.inspect)(resource, { depth: 0 }) + "'");
};