"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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__setModuleDefault(result, mod);
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return result;
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};
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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return new (P || (P = Promise))(function (resolve, reject) {
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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});
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.resolveInstance = void 0;
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const error_msgs_1 = require("../constants/error_msgs");
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const literal_types_1 = require("../constants/literal_types");
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const METADATA_KEY = __importStar(require("../constants/metadata_keys"));
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const async_1 = require("../utils/async");
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function _resolveRequests(childRequests, resolveRequest) {
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return childRequests.reduce((resolvedRequests, childRequest) => {
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const injection = resolveRequest(childRequest);
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const targetType = childRequest.target.type;
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if (targetType === literal_types_1.TargetTypeEnum.ConstructorArgument) {
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resolvedRequests.constructorInjections.push(injection);
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}
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else {
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resolvedRequests.propertyRequests.push(childRequest);
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resolvedRequests.propertyInjections.push(injection);
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}
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if (!resolvedRequests.isAsync) {
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resolvedRequests.isAsync = (0, async_1.isPromiseOrContainsPromise)(injection);
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}
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return resolvedRequests;
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}, { constructorInjections: [], propertyInjections: [], propertyRequests: [], isAsync: false });
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}
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function _createInstance(constr, childRequests, resolveRequest) {
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let result;
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if (childRequests.length > 0) {
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const resolved = _resolveRequests(childRequests, resolveRequest);
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const createInstanceWithInjectionsArg = Object.assign(Object.assign({}, resolved), { constr });
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if (resolved.isAsync) {
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result = createInstanceWithInjectionsAsync(createInstanceWithInjectionsArg);
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}
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else {
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result = createInstanceWithInjections(createInstanceWithInjectionsArg);
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}
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}
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else {
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result = new constr();
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}
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return result;
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}
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function createInstanceWithInjections(args) {
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const instance = new args.constr(...args.constructorInjections);
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args.propertyRequests.forEach((r, index) => {
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const property = r.target.identifier;
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const injection = args.propertyInjections[index];
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instance[property] = injection;
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});
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return instance;
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}
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function createInstanceWithInjectionsAsync(args) {
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return __awaiter(this, void 0, void 0, function* () {
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const constructorInjections = yield possiblyWaitInjections(args.constructorInjections);
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const propertyInjections = yield possiblyWaitInjections(args.propertyInjections);
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return createInstanceWithInjections(Object.assign(Object.assign({}, args), { constructorInjections, propertyInjections }));
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});
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}
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function possiblyWaitInjections(possiblePromiseinjections) {
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return __awaiter(this, void 0, void 0, function* () {
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const injections = [];
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for (const injection of possiblePromiseinjections) {
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if (Array.isArray(injection)) {
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injections.push(Promise.all(injection));
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}
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else {
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injections.push(injection);
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}
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}
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return Promise.all(injections);
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});
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}
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function _getInstanceAfterPostConstruct(constr, result) {
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const postConstructResult = _postConstruct(constr, result);
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if ((0, async_1.isPromise)(postConstructResult)) {
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return postConstructResult.then(() => result);
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}
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else {
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return result;
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}
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}
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function _postConstruct(constr, instance) {
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var _a, _b;
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if (Reflect.hasMetadata(METADATA_KEY.POST_CONSTRUCT, constr)) {
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const data = Reflect.getMetadata(METADATA_KEY.POST_CONSTRUCT, constr);
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try {
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return (_b = (_a = instance)[data.value]) === null || _b === void 0 ? void 0 : _b.call(_a);
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}
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catch (e) {
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throw new Error((0, error_msgs_1.POST_CONSTRUCT_ERROR)(constr.name, e.message));
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}
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}
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}
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function _validateInstanceResolution(binding, constr) {
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if (binding.scope !== literal_types_1.BindingScopeEnum.Singleton) {
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_throwIfHandlingDeactivation(binding, constr);
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}
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}
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function _throwIfHandlingDeactivation(binding, constr) {
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const scopeErrorMessage = `Class cannot be instantiated in ${binding.scope === literal_types_1.BindingScopeEnum.Request ?
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"request" :
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"transient"} scope.`;
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if (typeof binding.onDeactivation === "function") {
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throw new Error((0, error_msgs_1.ON_DEACTIVATION_ERROR)(constr.name, scopeErrorMessage));
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}
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if (Reflect.hasMetadata(METADATA_KEY.PRE_DESTROY, constr)) {
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throw new Error((0, error_msgs_1.PRE_DESTROY_ERROR)(constr.name, scopeErrorMessage));
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}
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}
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function resolveInstance(binding, constr, childRequests, resolveRequest) {
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_validateInstanceResolution(binding, constr);
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const result = _createInstance(constr, childRequests, resolveRequest);
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if ((0, async_1.isPromise)(result)) {
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return result.then((resolvedResult) => _getInstanceAfterPostConstruct(constr, resolvedResult));
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}
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else {
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return _getInstanceAfterPostConstruct(constr, result);
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}
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}
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exports.resolveInstance = resolveInstance;
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//# sourceMappingURL=instantiation.js.map
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