inversify/lib/resolution/resolver.js

"use strict";
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;
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                default:
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    }
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.resolve = void 0;
var ERROR_MSGS = __importStar(require("../constants/error_msgs"));
var literal_types_1 = require("../constants/literal_types");
var planner_1 = require("../planning/planner");
var scope_1 = require("../scope/scope");
var async_1 = require("../utils/async");
var binding_utils_1 = require("../utils/binding_utils");
var exceptions_1 = require("../utils/exceptions");
var instantiation_1 = require("./instantiation");
var _resolveRequest = function (requestScope) {
    return function (request) {
        request.parentContext.setCurrentRequest(request);
        var bindings = request.bindings;
        var childRequests = request.childRequests;
        var targetIsAnArray = request.target && request.target.isArray();
        var targetParentIsNotAnArray = !request.parentRequest ||
            !request.parentRequest.target ||
            !request.target ||
            !request.parentRequest.target.matchesArray(request.target.serviceIdentifier);
        if (targetIsAnArray && targetParentIsNotAnArray) {
            return childRequests.map(function (childRequest) {
                var _f = _resolveRequest(requestScope);
                return _f(childRequest);
            });
        }
        else {
            if (request.target.isOptional() && bindings.length === 0) {
                return undefined;
            }
            var binding = bindings[0];
            return _resolveBinding(requestScope, request, binding);
        }
    };
};
var _resolveFactoryFromBinding = function (binding, context) {
    var factoryDetails = (0, binding_utils_1.getFactoryDetails)(binding);
    return (0, exceptions_1.tryAndThrowErrorIfStackOverflow)(function () { return factoryDetails.factory.bind(binding)(context); }, function () { return new Error(ERROR_MSGS.CIRCULAR_DEPENDENCY_IN_FACTORY(factoryDetails.factoryType, context.currentRequest.serviceIdentifier.toString())); });
};
var _getResolvedFromBinding = function (requestScope, request, binding) {
    var result;
    var childRequests = request.childRequests;
    (0, binding_utils_1.ensureFullyBound)(binding);
    switch (binding.type) {
        case literal_types_1.BindingTypeEnum.ConstantValue:
        case literal_types_1.BindingTypeEnum.Function:
            result = binding.cache;
            break;
        case literal_types_1.BindingTypeEnum.Constructor:
            result = binding.implementationType;
            break;
        case literal_types_1.BindingTypeEnum.Instance:
            result = (0, instantiation_1.resolveInstance)(binding, binding.implementationType, childRequests, _resolveRequest(requestScope));
            break;
        default:
            result = _resolveFactoryFromBinding(binding, request.parentContext);
    }
    return result;
};
var _resolveInScope = function (requestScope, binding, resolveFromBinding) {
    var result = (0, scope_1.tryGetFromScope)(requestScope, binding);
    if (result !== null) {
        return result;
    }
    result = resolveFromBinding();
    (0, scope_1.saveToScope)(requestScope, binding, result);
    return result;
};
var _resolveBinding = function (requestScope, request, binding) {
    return _resolveInScope(requestScope, binding, function () {
        var result = _getResolvedFromBinding(requestScope, request, binding);
        if ((0, async_1.isPromise)(result)) {
            result = result.then(function (resolved) { return _onActivation(request, binding, resolved); });
        }
        else {
            result = _onActivation(request, binding, result);
        }
        return result;
    });
};
function _onActivation(request, binding, resolved) {
    var result = _bindingActivation(request.parentContext, binding, resolved);
    var containersIterator = _getContainersIterator(request.parentContext.container);
    var container;
    var containersIteratorResult = containersIterator.next();
    do {
        container = containersIteratorResult.value;
        var context_1 = request.parentContext;
        var serviceIdentifier = request.serviceIdentifier;
        var activationsIterator = _getContainerActivationsForService(container, serviceIdentifier);
        if ((0, async_1.isPromise)(result)) {
            result = _activateContainerAsync(activationsIterator, context_1, result);
        }
        else {
            result = _activateContainer(activationsIterator, context_1, result);
        }
        containersIteratorResult = containersIterator.next();
    } while (containersIteratorResult.done !== true && !(0, planner_1.getBindingDictionary)(container).hasKey(request.serviceIdentifier));
    return result;
}
var _bindingActivation = function (context, binding, previousResult) {
    var result;
    if (typeof binding.onActivation === "function") {
        result = binding.onActivation(context, previousResult);
    }
    else {
        result = previousResult;
    }
    return result;
};
var _activateContainer = function (activationsIterator, context, result) {
    var activation = activationsIterator.next();
    while (!activation.done) {
        result = activation.value(context, result);
        if ((0, async_1.isPromise)(result)) {
            return _activateContainerAsync(activationsIterator, context, result);
        }
        activation = activationsIterator.next();
    }
    return result;
};
var _activateContainerAsync = function (activationsIterator, context, resultPromise) { return __awaiter(void 0, void 0, void 0, function () {
    var result, activation;
    return __generator(this, function (_a) {
        switch (_a.label) {
            case 0: return [4, resultPromise];
            case 1:
                result = _a.sent();
                activation = activationsIterator.next();
                _a.label = 2;
            case 2:
                if (!!activation.done) return [3, 4];
                return [4, activation.value(context, result)];
            case 3:
                result = _a.sent();
                activation = activationsIterator.next();
                return [3, 2];
            case 4: return [2, result];
        }
    });
}); };
var _getContainerActivationsForService = function (container, serviceIdentifier) {
    var activations = container._activations;
    return activations.hasKey(serviceIdentifier) ? activations.get(serviceIdentifier).values() : [].values();
};
var _getContainersIterator = function (container) {
    var containersStack = [container];
    var parent = container.parent;
    while (parent !== null) {
        containersStack.push(parent);
        parent = parent.parent;
    }
    var getNextContainer = function () {
        var nextContainer = containersStack.pop();
        if (nextContainer !== undefined) {
            return { done: false, value: nextContainer };
        }
        else {
            return { done: true, value: undefined };
        }
    };
    var containersIterator = {
        next: getNextContainer,
    };
    return containersIterator;
};
function resolve(context) {
    var _f = _resolveRequest(context.plan.rootRequest.requestScope);
    return _f(context.plan.rootRequest);
}
exports.resolve = resolve;
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