inversify
Version:
A powerful and lightweight inversion of control container for JavaScript and Node.js apps powered by TypeScript.
213 lines (212 loc) • 10.2 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
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 };
}
};
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
if (ar || !(i in from)) {
if (!ar) ar = Array.prototype.slice.call(from, 0, i);
ar[i] = from[i];
}
}
return to.concat(ar || Array.prototype.slice.call(from));
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.resolveInstance = void 0;
var error_msgs_1 = require("../constants/error_msgs");
var literal_types_1 = require("../constants/literal_types");
var METADATA_KEY = __importStar(require("../constants/metadata_keys"));
var async_1 = require("../utils/async");
function _resolveRequests(childRequests, resolveRequest) {
return childRequests.reduce(function (resolvedRequests, childRequest) {
var injection = resolveRequest(childRequest);
var targetType = childRequest.target.type;
if (targetType === literal_types_1.TargetTypeEnum.ConstructorArgument) {
resolvedRequests.constructorInjections.push(injection);
}
else {
resolvedRequests.propertyRequests.push(childRequest);
resolvedRequests.propertyInjections.push(injection);
}
if (!resolvedRequests.isAsync) {
resolvedRequests.isAsync = (0, async_1.isPromiseOrContainsPromise)(injection);
}
return resolvedRequests;
}, { constructorInjections: [], propertyInjections: [], propertyRequests: [], isAsync: false });
}
function _createInstance(constr, childRequests, resolveRequest) {
var result;
if (childRequests.length > 0) {
var resolved = _resolveRequests(childRequests, resolveRequest);
var createInstanceWithInjectionsArg = __assign(__assign({}, resolved), { constr: constr });
if (resolved.isAsync) {
result = createInstanceWithInjectionsAsync(createInstanceWithInjectionsArg);
}
else {
result = createInstanceWithInjections(createInstanceWithInjectionsArg);
}
}
else {
result = new constr();
}
return result;
}
function createInstanceWithInjections(args) {
var _a;
var instance = new ((_a = args.constr).bind.apply(_a, __spreadArray([void 0], args.constructorInjections, false)))();
args.propertyRequests.forEach(function (r, index) {
var property = r.target.identifier;
var injection = args.propertyInjections[index];
if (!r.target.isOptional() || injection !== undefined) {
instance[property] = injection;
}
});
return instance;
}
function createInstanceWithInjectionsAsync(args) {
return __awaiter(this, void 0, void 0, function () {
var constructorInjections, propertyInjections;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4, possiblyWaitInjections(args.constructorInjections)];
case 1:
constructorInjections = _a.sent();
return [4, possiblyWaitInjections(args.propertyInjections)];
case 2:
propertyInjections = _a.sent();
return [2, createInstanceWithInjections(__assign(__assign({}, args), { constructorInjections: constructorInjections, propertyInjections: propertyInjections }))];
}
});
});
}
function possiblyWaitInjections(possiblePromiseinjections) {
return __awaiter(this, void 0, void 0, function () {
var injections, _i, possiblePromiseinjections_1, injection;
return __generator(this, function (_a) {
injections = [];
for (_i = 0, possiblePromiseinjections_1 = possiblePromiseinjections; _i < possiblePromiseinjections_1.length; _i++) {
injection = possiblePromiseinjections_1[_i];
if (Array.isArray(injection)) {
injections.push(Promise.all(injection));
}
else {
injections.push(injection);
}
}
return [2, Promise.all(injections)];
});
});
}
function _getInstanceAfterPostConstruct(constr, result) {
var postConstructResult = _postConstruct(constr, result);
if ((0, async_1.isPromise)(postConstructResult)) {
return postConstructResult.then(function () { return result; });
}
else {
return result;
}
}
function _postConstruct(constr, instance) {
var _a, _b;
if (Reflect.hasMetadata(METADATA_KEY.POST_CONSTRUCT, constr)) {
var data = Reflect.getMetadata(METADATA_KEY.POST_CONSTRUCT, constr);
try {
return (_b = (_a = instance)[data.value]) === null || _b === void 0 ? void 0 : _b.call(_a);
}
catch (e) {
if (e instanceof Error) {
throw new Error((0, error_msgs_1.POST_CONSTRUCT_ERROR)(constr.name, e.message));
}
}
}
}
function _validateInstanceResolution(binding, constr) {
if (binding.scope !== literal_types_1.BindingScopeEnum.Singleton) {
_throwIfHandlingDeactivation(binding, constr);
}
}
function _throwIfHandlingDeactivation(binding, constr) {
var scopeErrorMessage = "Class cannot be instantiated in " + (binding.scope === literal_types_1.BindingScopeEnum.Request ?
'request' :
'transient') + " scope.";
if (typeof binding.onDeactivation === 'function') {
throw new Error((0, error_msgs_1.ON_DEACTIVATION_ERROR)(constr.name, scopeErrorMessage));
}
if (Reflect.hasMetadata(METADATA_KEY.PRE_DESTROY, constr)) {
throw new Error((0, error_msgs_1.PRE_DESTROY_ERROR)(constr.name, scopeErrorMessage));
}
}
function resolveInstance(binding, constr, childRequests, resolveRequest) {
_validateInstanceResolution(binding, constr);
var result = _createInstance(constr, childRequests, resolveRequest);
if ((0, async_1.isPromise)(result)) {
return result.then(function (resolvedResult) { return _getInstanceAfterPostConstruct(constr, resolvedResult); });
}
else {
return _getInstanceAfterPostConstruct(constr, result);
}
}
exports.resolveInstance = resolveInstance;