async-reducer-context/libs/applyMiddleware.js

通过react-context,useReducer替代redux，可扩展支持与redux周边middleware中间件，通过useModel(['key'])可获取state和dispatch，其中useModel已做到获取的属性值变化，组件才会重新渲染，摆脱useContext因context中无关数据导致的重复渲染问题。

var __spreadArray = (this && this.__spreadArray) || function (to, from) {
    for (var i = 0, il = from.length, j = to.length; i < il; i++, j++)
        to[j] = from[i];
    return to;
};
export default function applyMiddleware() {
    var middlewares = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        middlewares[_i] = arguments[_i];
    }
    return function (store) {
        // eslint-disable-next-line no-unused-vars
        var dispatch = function (action) {
            var args = [];
            for (var _i = 1; _i < arguments.length; _i++) {
                args[_i - 1] = arguments[_i];
            }
            throw new Error('Dispatching while constructing your middleware is not allowed. '
                + 'Other middleware would not be applied to this dispatch.');
        };
        var middlewareAPI = {
            getState: store.getState,
            dispatch: function (action) {
                var args = [];
                for (var _i = 1; _i < arguments.length; _i++) {
                    args[_i - 1] = arguments[_i];
                }
                return dispatch.apply(void 0, __spreadArray([action], args));
            },
        };
        var chain = middlewares.map(function (middleware) { return middleware(middlewareAPI); });
        dispatch = compose.apply(void 0, chain)(store.dispatch);
        return dispatch;
    };
}
function compose() {
    var funcs = [];
    for (var _i = 0; _i < arguments.length; _i++) {
        funcs[_i] = arguments[_i];
    }
    if (funcs.length === 0) {
        // infer the argument type so it is usable in inference down the line
        return function (arg) { return arg; };
    }
    if (funcs.length === 1) {
        return funcs[0];
    }
    return funcs.reduce(function (a, b) { return function () {
        var args = [];
        for (var _i = 0; _i < arguments.length; _i++) {
            args[_i] = arguments[_i];
        }
        return a(b.apply(void 0, args));
    }; });
}