killa
Version:
State management for Vanilla and React
102 lines (101 loc) • 4.29 kB
JavaScript
;
var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all)
__defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from))
if (!__hasOwnProp.call(to, key) && key !== except)
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
}
return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
// If the importer is in node compatibility mode or this is not an ESM
// file that has been converted to a CommonJS file using a Babel-
// compatible transform (i.e. "__esModule" has not been set), then set
// "default" to the CommonJS "module.exports" for node compatibility.
isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var core_exports = {};
__export(core_exports, {
createStore: () => createStore
});
module.exports = __toCommonJS(core_exports);
var import_just_clone = __toESM(require("just-clone"));
var import_deep_equals = require("killa/deep-equals");
var import_constants = require("killa/constants");
function createStore(initializer = Object.assign({}), options) {
let state;
const subscribers = /* @__PURE__ */ new Set();
const compare = typeof (options == null ? void 0 : options.compare) === "function" ? options.compare : import_deep_equals.deepEquals;
const getState = () => (0, import_just_clone.default)(state);
const setState = (fn, force = false) => {
const newState = fn(getState()) || {};
if (!compare(state, newState)) {
const prevState = state;
state = force ? Object.assign(newState) : Object.assign(getState(), (0, import_just_clone.default)(newState));
subscribers.forEach((subscriber) => {
const _prevState = (0, import_just_clone.default)(prevState);
const _newState = getState();
if (subscriber.$$subscriber && subscriber.$$selector) {
const selectorState = subscriber.$$selectorState;
const nextselectorState = subscriber.$$selector(state);
if (!compare(selectorState, nextselectorState)) {
subscriber.$$selectorState = nextselectorState;
subscriber(_newState, _prevState);
}
return;
}
subscriber(_newState, _prevState);
});
}
};
const initialState = typeof initializer === "function" ? initializer(getState, setState) : initializer;
const subscribe = (subscriber, selector) => {
if (typeof selector === "function") {
subscriber.$$subscriber = import_constants.SYMBOL_SUBSCRIBER;
subscriber.$$selectorState = selector(state);
subscriber.$$selector = selector;
}
subscribers.add(subscriber);
return () => subscribers.delete(subscriber);
};
if (!(0, import_deep_equals.isObject)(initialState))
throw new Error("Store must be an object.");
state = (0, import_just_clone.default)(initialState);
const resetState = (state2 = null) => {
const newState = state2 && (0, import_deep_equals.isObject)(state2) ? state2 : (0, import_just_clone.default)(initialState);
store.setState(() => newState, true);
};
const destroy = () => subscribers.clear();
const store = {
$$store: import_constants.SYMBOL_STORE,
getState,
setState,
subscribe,
getServerState: () => initialState,
resetState,
destroy
};
if ((options == null ? void 0 : options.use) && Array.isArray(options.use)) {
options.use.forEach((middleware) => middleware(store));
}
if (process.env.NODE_ENV !== "test") {
return Object.freeze(store);
}
return store;
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
createStore
});