clean-architecture/usecaseContext.js

Utilities for implementing clean architecture using Redux

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createUsecaseContextApi = void 0;
var assert_1 = require("tsafe/assert");
function createUsecaseContextApi(getInitialContext) {
    var weakMap = new WeakMap();
    return {
        "getContext": function (rootContext) {
            var getMemoizedContext = weakMap.get(rootContext);
            if (getMemoizedContext !== undefined) {
                return getMemoizedContext();
            }
            (0, assert_1.assert)(getInitialContext !== undefined, "Slice context not initialized");
            getMemoizedContext = memoize(getInitialContext);
            weakMap.set(rootContext, getMemoizedContext);
            return getMemoizedContext();
        },
        "setContext": function (rootContext, context) {
            return weakMap.set(rootContext, memoize(typeof context === "function" ? context : function () { return context; }));
        },
        "getIsContextSet": function (rootContext) { return weakMap.has(rootContext); }
    };
}
exports.createUsecaseContextApi = createUsecaseContextApi;
function memoize(fn) {
    var cache = undefined;
    return function () {
        if (cache !== undefined) {
            return cache;
        }
        return (cache = fn());
    };
}
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