2092 lines
61 KiB
JavaScript
2092 lines
61 KiB
JavaScript
(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
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typeof define === 'function' && define.amd ? define(['exports'], factory) :
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(global = global || self, factory(global.immer = {}));
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}(this, (function (exports) { 'use strict';
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var _ref;
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// Should be no imports here!
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// Some things that should be evaluated before all else...
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// We only want to know if non-polyfilled symbols are available
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var hasSymbol = typeof Symbol !== "undefined" && typeof
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/*#__PURE__*/
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Symbol("x") === "symbol";
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var hasMap = typeof Map !== "undefined";
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var hasSet = typeof Set !== "undefined";
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var hasProxies = typeof Proxy !== "undefined" && typeof Proxy.revocable !== "undefined" && typeof Reflect !== "undefined";
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/**
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* The sentinel value returned by producers to replace the draft with undefined.
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*/
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var NOTHING = hasSymbol ?
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/*#__PURE__*/
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Symbol.for("immer-nothing") : (_ref = {}, _ref["immer-nothing"] = true, _ref);
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/**
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* To let Immer treat your class instances as plain immutable objects
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* (albeit with a custom prototype), you must define either an instance property
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* or a static property on each of your custom classes.
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*
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* Otherwise, your class instance will never be drafted, which means it won't be
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* safe to mutate in a produce callback.
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*/
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var DRAFTABLE = hasSymbol ?
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/*#__PURE__*/
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Symbol.for("immer-draftable") : "__$immer_draftable";
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var DRAFT_STATE = hasSymbol ?
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/*#__PURE__*/
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Symbol.for("immer-state") : "__$immer_state"; // Even a polyfilled Symbol might provide Symbol.iterator
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var iteratorSymbol = typeof Symbol != "undefined" && Symbol.iterator || "@@iterator";
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var errors = {
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0: "Illegal state",
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1: "Immer drafts cannot have computed properties",
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2: "This object has been frozen and should not be mutated",
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3: function _(data) {
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return "Cannot use a proxy that has been revoked. Did you pass an object from inside an immer function to an async process? " + data;
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},
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4: "An immer producer returned a new value *and* modified its draft. Either return a new value *or* modify the draft.",
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5: "Immer forbids circular references",
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6: "The first or second argument to `produce` must be a function",
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7: "The third argument to `produce` must be a function or undefined",
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8: "First argument to `createDraft` must be a plain object, an array, or an immerable object",
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9: "First argument to `finishDraft` must be a draft returned by `createDraft`",
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10: "The given draft is already finalized",
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11: "Object.defineProperty() cannot be used on an Immer draft",
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12: "Object.setPrototypeOf() cannot be used on an Immer draft",
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13: "Immer only supports deleting array indices",
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14: "Immer only supports setting array indices and the 'length' property",
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15: function _(path) {
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return "Cannot apply patch, path doesn't resolve: " + path;
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},
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16: 'Sets cannot have "replace" patches.',
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17: function _(op) {
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return "Unsupported patch operation: " + op;
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},
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18: function _(plugin) {
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return "The plugin for '" + plugin + "' has not been loaded into Immer. To enable the plugin, import and call `enable" + plugin + "()` when initializing your application.";
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},
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20: "Cannot use proxies if Proxy, Proxy.revocable or Reflect are not available",
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21: function _(thing) {
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return "produce can only be called on things that are draftable: plain objects, arrays, Map, Set or classes that are marked with '[immerable]: true'. Got '" + thing + "'";
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},
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22: function _(thing) {
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return "'current' expects a draft, got: " + thing;
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},
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23: function _(thing) {
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return "'original' expects a draft, got: " + thing;
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},
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24: "Patching reserved attributes like __proto__, prototype and constructor is not allowed"
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};
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function die(error) {
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for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
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args[_key - 1] = arguments[_key];
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}
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{
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var e = errors[error];
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var msg = !e ? "unknown error nr: " + error : typeof e === "function" ? e.apply(null, args) : e;
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throw new Error("[Immer] " + msg);
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}
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}
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/** Returns true if the given value is an Immer draft */
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/*#__PURE__*/
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function isDraft(value) {
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return !!value && !!value[DRAFT_STATE];
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}
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/** Returns true if the given value can be drafted by Immer */
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/*#__PURE__*/
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function isDraftable(value) {
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var _value$constructor;
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if (!value) return false;
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return isPlainObject(value) || Array.isArray(value) || !!value[DRAFTABLE] || !!((_value$constructor = value.constructor) === null || _value$constructor === void 0 ? void 0 : _value$constructor[DRAFTABLE]) || isMap(value) || isSet(value);
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}
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var objectCtorString =
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/*#__PURE__*/
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Object.prototype.constructor.toString();
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/*#__PURE__*/
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function isPlainObject(value) {
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if (!value || typeof value !== "object") return false;
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var proto = Object.getPrototypeOf(value);
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if (proto === null) {
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return true;
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}
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var Ctor = Object.hasOwnProperty.call(proto, "constructor") && proto.constructor;
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if (Ctor === Object) return true;
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return typeof Ctor == "function" && Function.toString.call(Ctor) === objectCtorString;
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}
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function original(value) {
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if (!isDraft(value)) die(23, value);
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return value[DRAFT_STATE].base_;
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}
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/*#__PURE__*/
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var ownKeys = typeof Reflect !== "undefined" && Reflect.ownKeys ? Reflect.ownKeys : typeof Object.getOwnPropertySymbols !== "undefined" ? function (obj) {
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return Object.getOwnPropertyNames(obj).concat(Object.getOwnPropertySymbols(obj));
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} :
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/* istanbul ignore next */
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Object.getOwnPropertyNames;
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var getOwnPropertyDescriptors = Object.getOwnPropertyDescriptors || function getOwnPropertyDescriptors(target) {
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// Polyfill needed for Hermes and IE, see https://github.com/facebook/hermes/issues/274
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var res = {};
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ownKeys(target).forEach(function (key) {
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res[key] = Object.getOwnPropertyDescriptor(target, key);
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});
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return res;
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};
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function each(obj, iter, enumerableOnly) {
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if (enumerableOnly === void 0) {
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enumerableOnly = false;
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}
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if (getArchtype(obj) === 0
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/* Object */
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) {
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(enumerableOnly ? Object.keys : ownKeys)(obj).forEach(function (key) {
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if (!enumerableOnly || typeof key !== "symbol") iter(key, obj[key], obj);
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});
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} else {
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obj.forEach(function (entry, index) {
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return iter(index, entry, obj);
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});
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}
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}
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/*#__PURE__*/
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function getArchtype(thing) {
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/* istanbul ignore next */
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var state = thing[DRAFT_STATE];
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return state ? state.type_ > 3 ? state.type_ - 4 // cause Object and Array map back from 4 and 5
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: state.type_ // others are the same
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: Array.isArray(thing) ? 1
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/* Array */
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: isMap(thing) ? 2
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/* Map */
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: isSet(thing) ? 3
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/* Set */
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: 0
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/* Object */
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;
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}
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/*#__PURE__*/
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function has(thing, prop) {
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return getArchtype(thing) === 2
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/* Map */
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? thing.has(prop) : Object.prototype.hasOwnProperty.call(thing, prop);
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}
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/*#__PURE__*/
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function get(thing, prop) {
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// @ts-ignore
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return getArchtype(thing) === 2
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/* Map */
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? thing.get(prop) : thing[prop];
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}
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/*#__PURE__*/
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function set(thing, propOrOldValue, value) {
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var t = getArchtype(thing);
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if (t === 2
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/* Map */
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) thing.set(propOrOldValue, value);else if (t === 3
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/* Set */
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) {
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thing.add(value);
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} else thing[propOrOldValue] = value;
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}
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/*#__PURE__*/
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function is(x, y) {
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// From: https://github.com/facebook/fbjs/blob/c69904a511b900266935168223063dd8772dfc40/packages/fbjs/src/core/shallowEqual.js
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if (x === y) {
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return x !== 0 || 1 / x === 1 / y;
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} else {
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return x !== x && y !== y;
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}
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}
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/*#__PURE__*/
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function isMap(target) {
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return hasMap && target instanceof Map;
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}
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/*#__PURE__*/
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function isSet(target) {
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return hasSet && target instanceof Set;
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}
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/*#__PURE__*/
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function latest(state) {
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return state.copy_ || state.base_;
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}
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/*#__PURE__*/
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function shallowCopy(base) {
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if (Array.isArray(base)) return Array.prototype.slice.call(base);
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var descriptors = getOwnPropertyDescriptors(base);
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delete descriptors[DRAFT_STATE];
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var keys = ownKeys(descriptors);
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for (var i = 0; i < keys.length; i++) {
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var key = keys[i];
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var desc = descriptors[key];
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if (desc.writable === false) {
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desc.writable = true;
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desc.configurable = true;
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} // like object.assign, we will read any _own_, get/set accessors. This helps in dealing
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// with libraries that trap values, like mobx or vue
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// unlike object.assign, non-enumerables will be copied as well
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if (desc.get || desc.set) descriptors[key] = {
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configurable: true,
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writable: true,
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enumerable: desc.enumerable,
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value: base[key]
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};
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}
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return Object.create(Object.getPrototypeOf(base), descriptors);
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}
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function freeze(obj, deep) {
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if (deep === void 0) {
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deep = false;
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}
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if (isFrozen(obj) || isDraft(obj) || !isDraftable(obj)) return obj;
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if (getArchtype(obj) > 1
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/* Map or Set */
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) {
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obj.set = obj.add = obj.clear = obj.delete = dontMutateFrozenCollections;
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}
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Object.freeze(obj);
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if (deep) each(obj, function (key, value) {
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return freeze(value, true);
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}, true);
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return obj;
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}
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function dontMutateFrozenCollections() {
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die(2);
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}
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function isFrozen(obj) {
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if (obj == null || typeof obj !== "object") return true; // See #600, IE dies on non-objects in Object.isFrozen
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return Object.isFrozen(obj);
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}
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/** Plugin utilities */
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var plugins = {};
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function getPlugin(pluginKey) {
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var plugin = plugins[pluginKey];
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if (!plugin) {
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die(18, pluginKey);
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} // @ts-ignore
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return plugin;
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}
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function loadPlugin(pluginKey, implementation) {
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if (!plugins[pluginKey]) plugins[pluginKey] = implementation;
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}
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var currentScope;
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function getCurrentScope() {
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if ( !currentScope) die(0);
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return currentScope;
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}
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function createScope(parent_, immer_) {
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return {
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drafts_: [],
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parent_: parent_,
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immer_: immer_,
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// Whenever the modified draft contains a draft from another scope, we
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// need to prevent auto-freezing so the unowned draft can be finalized.
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canAutoFreeze_: true,
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unfinalizedDrafts_: 0
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};
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}
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function usePatchesInScope(scope, patchListener) {
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if (patchListener) {
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getPlugin("Patches"); // assert we have the plugin
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scope.patches_ = [];
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scope.inversePatches_ = [];
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scope.patchListener_ = patchListener;
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}
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}
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function revokeScope(scope) {
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leaveScope(scope);
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scope.drafts_.forEach(revokeDraft); // @ts-ignore
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scope.drafts_ = null;
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}
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function leaveScope(scope) {
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if (scope === currentScope) {
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currentScope = scope.parent_;
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}
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}
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function enterScope(immer) {
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return currentScope = createScope(currentScope, immer);
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}
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function revokeDraft(draft) {
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var state = draft[DRAFT_STATE];
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if (state.type_ === 0
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/* ProxyObject */
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|| state.type_ === 1
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/* ProxyArray */
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) state.revoke_();else state.revoked_ = true;
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}
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function processResult(result, scope) {
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scope.unfinalizedDrafts_ = scope.drafts_.length;
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var baseDraft = scope.drafts_[0];
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var isReplaced = result !== undefined && result !== baseDraft;
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if (!scope.immer_.useProxies_) getPlugin("ES5").willFinalizeES5_(scope, result, isReplaced);
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if (isReplaced) {
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if (baseDraft[DRAFT_STATE].modified_) {
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revokeScope(scope);
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die(4);
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}
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if (isDraftable(result)) {
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// Finalize the result in case it contains (or is) a subset of the draft.
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result = finalize(scope, result);
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if (!scope.parent_) maybeFreeze(scope, result);
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}
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if (scope.patches_) {
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getPlugin("Patches").generateReplacementPatches_(baseDraft[DRAFT_STATE].base_, result, scope.patches_, scope.inversePatches_);
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}
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} else {
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// Finalize the base draft.
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result = finalize(scope, baseDraft, []);
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}
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revokeScope(scope);
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if (scope.patches_) {
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scope.patchListener_(scope.patches_, scope.inversePatches_);
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}
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return result !== NOTHING ? result : undefined;
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}
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function finalize(rootScope, value, path) {
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// Don't recurse in tho recursive data structures
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if (isFrozen(value)) return value;
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var state = value[DRAFT_STATE]; // A plain object, might need freezing, might contain drafts
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if (!state) {
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each(value, function (key, childValue) {
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return finalizeProperty(rootScope, state, value, key, childValue, path);
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}, true // See #590, don't recurse into non-enumerable of non drafted objects
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);
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return value;
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} // Never finalize drafts owned by another scope.
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if (state.scope_ !== rootScope) return value; // Unmodified draft, return the (frozen) original
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if (!state.modified_) {
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maybeFreeze(rootScope, state.base_, true);
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return state.base_;
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} // Not finalized yet, let's do that now
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|
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if (!state.finalized_) {
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state.finalized_ = true;
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state.scope_.unfinalizedDrafts_--;
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var result = // For ES5, create a good copy from the draft first, with added keys and without deleted keys.
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state.type_ === 4
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|
/* ES5Object */
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|
|| state.type_ === 5
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|
/* ES5Array */
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? state.copy_ = shallowCopy(state.draft_) : state.copy_; // Finalize all children of the copy
|
|
// For sets we clone before iterating, otherwise we can get in endless loop due to modifying during iteration, see #628
|
|
// To preserve insertion order in all cases we then clear the set
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|
// And we let finalizeProperty know it needs to re-add non-draft children back to the target
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var resultEach = result;
|
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var isSet = false;
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|
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if (state.type_ === 3
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/* Set */
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) {
|
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resultEach = new Set(result);
|
|
result.clear();
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|
isSet = true;
|
|
}
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|
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each(resultEach, function (key, childValue) {
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|
return finalizeProperty(rootScope, state, result, key, childValue, path, isSet);
|
|
}); // everything inside is frozen, we can freeze here
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|
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|
maybeFreeze(rootScope, result, false); // first time finalizing, let's create those patches
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|
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|
if (path && rootScope.patches_) {
|
|
getPlugin("Patches").generatePatches_(state, path, rootScope.patches_, rootScope.inversePatches_);
|
|
}
|
|
}
|
|
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|
return state.copy_;
|
|
}
|
|
|
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function finalizeProperty(rootScope, parentState, targetObject, prop, childValue, rootPath, targetIsSet) {
|
|
if ( childValue === targetObject) die(5);
|
|
|
|
if (isDraft(childValue)) {
|
|
var path = rootPath && parentState && parentState.type_ !== 3
|
|
/* Set */
|
|
&& // Set objects are atomic since they have no keys.
|
|
!has(parentState.assigned_, prop) // Skip deep patches for assigned keys.
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|
? rootPath.concat(prop) : undefined; // Drafts owned by `scope` are finalized here.
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|
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|
var res = finalize(rootScope, childValue, path);
|
|
set(targetObject, prop, res); // Drafts from another scope must prevented to be frozen
|
|
// if we got a draft back from finalize, we're in a nested produce and shouldn't freeze
|
|
|
|
if (isDraft(res)) {
|
|
rootScope.canAutoFreeze_ = false;
|
|
} else return;
|
|
} else if (targetIsSet) {
|
|
targetObject.add(childValue);
|
|
} // Search new objects for unfinalized drafts. Frozen objects should never contain drafts.
|
|
|
|
|
|
if (isDraftable(childValue) && !isFrozen(childValue)) {
|
|
if (!rootScope.immer_.autoFreeze_ && rootScope.unfinalizedDrafts_ < 1) {
|
|
// optimization: if an object is not a draft, and we don't have to
|
|
// deepfreeze everything, and we are sure that no drafts are left in the remaining object
|
|
// cause we saw and finalized all drafts already; we can stop visiting the rest of the tree.
|
|
// This benefits especially adding large data tree's without further processing.
|
|
// See add-data.js perf test
|
|
return;
|
|
}
|
|
|
|
finalize(rootScope, childValue); // immer deep freezes plain objects, so if there is no parent state, we freeze as well
|
|
|
|
if (!parentState || !parentState.scope_.parent_) maybeFreeze(rootScope, childValue);
|
|
}
|
|
}
|
|
|
|
function maybeFreeze(scope, value, deep) {
|
|
if (deep === void 0) {
|
|
deep = false;
|
|
}
|
|
|
|
// we never freeze for a non-root scope; as it would prevent pruning for drafts inside wrapping objects
|
|
if (!scope.parent_ && scope.immer_.autoFreeze_ && scope.canAutoFreeze_) {
|
|
freeze(value, deep);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns a new draft of the `base` object.
|
|
*
|
|
* The second argument is the parent draft-state (used internally).
|
|
*/
|
|
|
|
function createProxyProxy(base, parent) {
|
|
var isArray = Array.isArray(base);
|
|
var state = {
|
|
type_: isArray ? 1
|
|
/* ProxyArray */
|
|
: 0
|
|
/* ProxyObject */
|
|
,
|
|
// Track which produce call this is associated with.
|
|
scope_: parent ? parent.scope_ : getCurrentScope(),
|
|
// True for both shallow and deep changes.
|
|
modified_: false,
|
|
// Used during finalization.
|
|
finalized_: false,
|
|
// Track which properties have been assigned (true) or deleted (false).
|
|
assigned_: {},
|
|
// The parent draft state.
|
|
parent_: parent,
|
|
// The base state.
|
|
base_: base,
|
|
// The base proxy.
|
|
draft_: null,
|
|
// The base copy with any updated values.
|
|
copy_: null,
|
|
// Called by the `produce` function.
|
|
revoke_: null,
|
|
isManual_: false
|
|
}; // the traps must target something, a bit like the 'real' base.
|
|
// but also, we need to be able to determine from the target what the relevant state is
|
|
// (to avoid creating traps per instance to capture the state in closure,
|
|
// and to avoid creating weird hidden properties as well)
|
|
// So the trick is to use 'state' as the actual 'target'! (and make sure we intercept everything)
|
|
// Note that in the case of an array, we put the state in an array to have better Reflect defaults ootb
|
|
|
|
var target = state;
|
|
var traps = objectTraps;
|
|
|
|
if (isArray) {
|
|
target = [state];
|
|
traps = arrayTraps;
|
|
}
|
|
|
|
var _Proxy$revocable = Proxy.revocable(target, traps),
|
|
revoke = _Proxy$revocable.revoke,
|
|
proxy = _Proxy$revocable.proxy;
|
|
|
|
state.draft_ = proxy;
|
|
state.revoke_ = revoke;
|
|
return proxy;
|
|
}
|
|
/**
|
|
* Object drafts
|
|
*/
|
|
|
|
var objectTraps = {
|
|
get: function get(state, prop) {
|
|
if (prop === DRAFT_STATE) return state;
|
|
var source = latest(state);
|
|
|
|
if (!has(source, prop)) {
|
|
// non-existing or non-own property...
|
|
return readPropFromProto(state, source, prop);
|
|
}
|
|
|
|
var value = source[prop];
|
|
|
|
if (state.finalized_ || !isDraftable(value)) {
|
|
return value;
|
|
} // Check for existing draft in modified state.
|
|
// Assigned values are never drafted. This catches any drafts we created, too.
|
|
|
|
|
|
if (value === peek(state.base_, prop)) {
|
|
prepareCopy(state);
|
|
return state.copy_[prop] = createProxy(state.scope_.immer_, value, state);
|
|
}
|
|
|
|
return value;
|
|
},
|
|
has: function has(state, prop) {
|
|
return prop in latest(state);
|
|
},
|
|
ownKeys: function ownKeys(state) {
|
|
return Reflect.ownKeys(latest(state));
|
|
},
|
|
set: function set(state, prop
|
|
/* strictly not, but helps TS */
|
|
, value) {
|
|
var desc = getDescriptorFromProto(latest(state), prop);
|
|
|
|
if (desc === null || desc === void 0 ? void 0 : desc.set) {
|
|
// special case: if this write is captured by a setter, we have
|
|
// to trigger it with the correct context
|
|
desc.set.call(state.draft_, value);
|
|
return true;
|
|
}
|
|
|
|
if (!state.modified_) {
|
|
// the last check is because we need to be able to distinguish setting a non-existing to undefined (which is a change)
|
|
// from setting an existing property with value undefined to undefined (which is not a change)
|
|
var current = peek(latest(state), prop); // special case, if we assigning the original value to a draft, we can ignore the assignment
|
|
|
|
var currentState = current === null || current === void 0 ? void 0 : current[DRAFT_STATE];
|
|
|
|
if (currentState && currentState.base_ === value) {
|
|
state.copy_[prop] = value;
|
|
state.assigned_[prop] = false;
|
|
return true;
|
|
}
|
|
|
|
if (is(value, current) && (value !== undefined || has(state.base_, prop))) return true;
|
|
prepareCopy(state);
|
|
markChanged(state);
|
|
}
|
|
|
|
if (state.copy_[prop] === value && ( // special case: handle new props with value 'undefined'
|
|
value !== undefined || prop in state.copy_) || // special case: NaN
|
|
Number.isNaN(value) && Number.isNaN(state.copy_[prop])) return true; // @ts-ignore
|
|
|
|
state.copy_[prop] = value;
|
|
state.assigned_[prop] = true;
|
|
return true;
|
|
},
|
|
deleteProperty: function deleteProperty(state, prop) {
|
|
// The `undefined` check is a fast path for pre-existing keys.
|
|
if (peek(state.base_, prop) !== undefined || prop in state.base_) {
|
|
state.assigned_[prop] = false;
|
|
prepareCopy(state);
|
|
markChanged(state);
|
|
} else {
|
|
// if an originally not assigned property was deleted
|
|
delete state.assigned_[prop];
|
|
} // @ts-ignore
|
|
|
|
|
|
if (state.copy_) delete state.copy_[prop];
|
|
return true;
|
|
},
|
|
// Note: We never coerce `desc.value` into an Immer draft, because we can't make
|
|
// the same guarantee in ES5 mode.
|
|
getOwnPropertyDescriptor: function getOwnPropertyDescriptor(state, prop) {
|
|
var owner = latest(state);
|
|
var desc = Reflect.getOwnPropertyDescriptor(owner, prop);
|
|
if (!desc) return desc;
|
|
return {
|
|
writable: true,
|
|
configurable: state.type_ !== 1
|
|
/* ProxyArray */
|
|
|| prop !== "length",
|
|
enumerable: desc.enumerable,
|
|
value: owner[prop]
|
|
};
|
|
},
|
|
defineProperty: function defineProperty() {
|
|
die(11);
|
|
},
|
|
getPrototypeOf: function getPrototypeOf(state) {
|
|
return Object.getPrototypeOf(state.base_);
|
|
},
|
|
setPrototypeOf: function setPrototypeOf() {
|
|
die(12);
|
|
}
|
|
};
|
|
/**
|
|
* Array drafts
|
|
*/
|
|
|
|
var arrayTraps = {};
|
|
each(objectTraps, function (key, fn) {
|
|
// @ts-ignore
|
|
arrayTraps[key] = function () {
|
|
arguments[0] = arguments[0][0];
|
|
return fn.apply(this, arguments);
|
|
};
|
|
});
|
|
|
|
arrayTraps.deleteProperty = function (state, prop) {
|
|
if ( isNaN(parseInt(prop))) die(13); // @ts-ignore
|
|
|
|
return arrayTraps.set.call(this, state, prop, undefined);
|
|
};
|
|
|
|
arrayTraps.set = function (state, prop, value) {
|
|
if ( prop !== "length" && isNaN(parseInt(prop))) die(14);
|
|
return objectTraps.set.call(this, state[0], prop, value, state[0]);
|
|
}; // Access a property without creating an Immer draft.
|
|
|
|
|
|
function peek(draft, prop) {
|
|
var state = draft[DRAFT_STATE];
|
|
var source = state ? latest(state) : draft;
|
|
return source[prop];
|
|
}
|
|
|
|
function readPropFromProto(state, source, prop) {
|
|
var _desc$get;
|
|
|
|
var desc = getDescriptorFromProto(source, prop);
|
|
return desc ? "value" in desc ? desc.value : // This is a very special case, if the prop is a getter defined by the
|
|
// prototype, we should invoke it with the draft as context!
|
|
(_desc$get = desc.get) === null || _desc$get === void 0 ? void 0 : _desc$get.call(state.draft_) : undefined;
|
|
}
|
|
|
|
function getDescriptorFromProto(source, prop) {
|
|
// 'in' checks proto!
|
|
if (!(prop in source)) return undefined;
|
|
var proto = Object.getPrototypeOf(source);
|
|
|
|
while (proto) {
|
|
var desc = Object.getOwnPropertyDescriptor(proto, prop);
|
|
if (desc) return desc;
|
|
proto = Object.getPrototypeOf(proto);
|
|
}
|
|
|
|
return undefined;
|
|
}
|
|
|
|
function markChanged(state) {
|
|
if (!state.modified_) {
|
|
state.modified_ = true;
|
|
|
|
if (state.parent_) {
|
|
markChanged(state.parent_);
|
|
}
|
|
}
|
|
}
|
|
function prepareCopy(state) {
|
|
if (!state.copy_) {
|
|
state.copy_ = shallowCopy(state.base_);
|
|
}
|
|
}
|
|
|
|
var Immer =
|
|
/*#__PURE__*/
|
|
function () {
|
|
function Immer(config) {
|
|
var _this = this;
|
|
|
|
this.useProxies_ = hasProxies;
|
|
this.autoFreeze_ = true;
|
|
/**
|
|
* The `produce` function takes a value and a "recipe function" (whose
|
|
* return value often depends on the base state). The recipe function is
|
|
* free to mutate its first argument however it wants. All mutations are
|
|
* only ever applied to a __copy__ of the base state.
|
|
*
|
|
* Pass only a function to create a "curried producer" which relieves you
|
|
* from passing the recipe function every time.
|
|
*
|
|
* Only plain objects and arrays are made mutable. All other objects are
|
|
* considered uncopyable.
|
|
*
|
|
* Note: This function is __bound__ to its `Immer` instance.
|
|
*
|
|
* @param {any} base - the initial state
|
|
* @param {Function} recipe - function that receives a proxy of the base state as first argument and which can be freely modified
|
|
* @param {Function} patchListener - optional function that will be called with all the patches produced here
|
|
* @returns {any} a new state, or the initial state if nothing was modified
|
|
*/
|
|
|
|
this.produce = function (base, recipe, patchListener) {
|
|
// curried invocation
|
|
if (typeof base === "function" && typeof recipe !== "function") {
|
|
var defaultBase = recipe;
|
|
recipe = base;
|
|
var self = _this;
|
|
return function curriedProduce(base) {
|
|
var _this2 = this;
|
|
|
|
if (base === void 0) {
|
|
base = defaultBase;
|
|
}
|
|
|
|
for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
|
|
args[_key - 1] = arguments[_key];
|
|
}
|
|
|
|
return self.produce(base, function (draft) {
|
|
var _recipe;
|
|
|
|
return (_recipe = recipe).call.apply(_recipe, [_this2, draft].concat(args));
|
|
}); // prettier-ignore
|
|
};
|
|
}
|
|
|
|
if (typeof recipe !== "function") die(6);
|
|
if (patchListener !== undefined && typeof patchListener !== "function") die(7);
|
|
var result; // Only plain objects, arrays, and "immerable classes" are drafted.
|
|
|
|
if (isDraftable(base)) {
|
|
var scope = enterScope(_this);
|
|
var proxy = createProxy(_this, base, undefined);
|
|
var hasError = true;
|
|
|
|
try {
|
|
result = recipe(proxy);
|
|
hasError = false;
|
|
} finally {
|
|
// finally instead of catch + rethrow better preserves original stack
|
|
if (hasError) revokeScope(scope);else leaveScope(scope);
|
|
}
|
|
|
|
if (typeof Promise !== "undefined" && result instanceof Promise) {
|
|
return result.then(function (result) {
|
|
usePatchesInScope(scope, patchListener);
|
|
return processResult(result, scope);
|
|
}, function (error) {
|
|
revokeScope(scope);
|
|
throw error;
|
|
});
|
|
}
|
|
|
|
usePatchesInScope(scope, patchListener);
|
|
return processResult(result, scope);
|
|
} else if (!base || typeof base !== "object") {
|
|
result = recipe(base);
|
|
if (result === undefined) result = base;
|
|
if (result === NOTHING) result = undefined;
|
|
if (_this.autoFreeze_) freeze(result, true);
|
|
|
|
if (patchListener) {
|
|
var p = [];
|
|
var ip = [];
|
|
getPlugin("Patches").generateReplacementPatches_(base, result, p, ip);
|
|
patchListener(p, ip);
|
|
}
|
|
|
|
return result;
|
|
} else die(21, base);
|
|
};
|
|
|
|
this.produceWithPatches = function (base, recipe) {
|
|
// curried invocation
|
|
if (typeof base === "function") {
|
|
return function (state) {
|
|
for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
|
|
args[_key2 - 1] = arguments[_key2];
|
|
}
|
|
|
|
return _this.produceWithPatches(state, function (draft) {
|
|
return base.apply(void 0, [draft].concat(args));
|
|
});
|
|
};
|
|
}
|
|
|
|
var patches, inversePatches;
|
|
|
|
var result = _this.produce(base, recipe, function (p, ip) {
|
|
patches = p;
|
|
inversePatches = ip;
|
|
});
|
|
|
|
if (typeof Promise !== "undefined" && result instanceof Promise) {
|
|
return result.then(function (nextState) {
|
|
return [nextState, patches, inversePatches];
|
|
});
|
|
}
|
|
|
|
return [result, patches, inversePatches];
|
|
};
|
|
|
|
if (typeof (config === null || config === void 0 ? void 0 : config.useProxies) === "boolean") this.setUseProxies(config.useProxies);
|
|
if (typeof (config === null || config === void 0 ? void 0 : config.autoFreeze) === "boolean") this.setAutoFreeze(config.autoFreeze);
|
|
}
|
|
|
|
var _proto = Immer.prototype;
|
|
|
|
_proto.createDraft = function createDraft(base) {
|
|
if (!isDraftable(base)) die(8);
|
|
if (isDraft(base)) base = current(base);
|
|
var scope = enterScope(this);
|
|
var proxy = createProxy(this, base, undefined);
|
|
proxy[DRAFT_STATE].isManual_ = true;
|
|
leaveScope(scope);
|
|
return proxy;
|
|
};
|
|
|
|
_proto.finishDraft = function finishDraft(draft, patchListener) {
|
|
var state = draft && draft[DRAFT_STATE];
|
|
|
|
{
|
|
if (!state || !state.isManual_) die(9);
|
|
if (state.finalized_) die(10);
|
|
}
|
|
|
|
var scope = state.scope_;
|
|
usePatchesInScope(scope, patchListener);
|
|
return processResult(undefined, scope);
|
|
}
|
|
/**
|
|
* Pass true to automatically freeze all copies created by Immer.
|
|
*
|
|
* By default, auto-freezing is enabled.
|
|
*/
|
|
;
|
|
|
|
_proto.setAutoFreeze = function setAutoFreeze(value) {
|
|
this.autoFreeze_ = value;
|
|
}
|
|
/**
|
|
* Pass true to use the ES2015 `Proxy` class when creating drafts, which is
|
|
* always faster than using ES5 proxies.
|
|
*
|
|
* By default, feature detection is used, so calling this is rarely necessary.
|
|
*/
|
|
;
|
|
|
|
_proto.setUseProxies = function setUseProxies(value) {
|
|
if (value && !hasProxies) {
|
|
die(20);
|
|
}
|
|
|
|
this.useProxies_ = value;
|
|
};
|
|
|
|
_proto.applyPatches = function applyPatches(base, patches) {
|
|
// If a patch replaces the entire state, take that replacement as base
|
|
// before applying patches
|
|
var i;
|
|
|
|
for (i = patches.length - 1; i >= 0; i--) {
|
|
var patch = patches[i];
|
|
|
|
if (patch.path.length === 0 && patch.op === "replace") {
|
|
base = patch.value;
|
|
break;
|
|
}
|
|
} // If there was a patch that replaced the entire state, start from the
|
|
// patch after that.
|
|
|
|
|
|
if (i > -1) {
|
|
patches = patches.slice(i + 1);
|
|
}
|
|
|
|
var applyPatchesImpl = getPlugin("Patches").applyPatches_;
|
|
|
|
if (isDraft(base)) {
|
|
// N.B: never hits if some patch a replacement, patches are never drafts
|
|
return applyPatchesImpl(base, patches);
|
|
} // Otherwise, produce a copy of the base state.
|
|
|
|
|
|
return this.produce(base, function (draft) {
|
|
return applyPatchesImpl(draft, patches);
|
|
});
|
|
};
|
|
|
|
return Immer;
|
|
}();
|
|
function createProxy(immer, value, parent) {
|
|
// precondition: createProxy should be guarded by isDraftable, so we know we can safely draft
|
|
var draft = isMap(value) ? getPlugin("MapSet").proxyMap_(value, parent) : isSet(value) ? getPlugin("MapSet").proxySet_(value, parent) : immer.useProxies_ ? createProxyProxy(value, parent) : getPlugin("ES5").createES5Proxy_(value, parent);
|
|
var scope = parent ? parent.scope_ : getCurrentScope();
|
|
scope.drafts_.push(draft);
|
|
return draft;
|
|
}
|
|
|
|
function current(value) {
|
|
if (!isDraft(value)) die(22, value);
|
|
return currentImpl(value);
|
|
}
|
|
|
|
function currentImpl(value) {
|
|
if (!isDraftable(value)) return value;
|
|
var state = value[DRAFT_STATE];
|
|
var copy;
|
|
var archType = getArchtype(value);
|
|
|
|
if (state) {
|
|
if (!state.modified_ && (state.type_ < 4 || !getPlugin("ES5").hasChanges_(state))) return state.base_; // Optimization: avoid generating new drafts during copying
|
|
|
|
state.finalized_ = true;
|
|
copy = copyHelper(value, archType);
|
|
state.finalized_ = false;
|
|
} else {
|
|
copy = copyHelper(value, archType);
|
|
}
|
|
|
|
each(copy, function (key, childValue) {
|
|
if (state && get(state.base_, key) === childValue) return; // no need to copy or search in something that didn't change
|
|
|
|
set(copy, key, currentImpl(childValue));
|
|
}); // In the future, we might consider freezing here, based on the current settings
|
|
|
|
return archType === 3
|
|
/* Set */
|
|
? new Set(copy) : copy;
|
|
}
|
|
|
|
function copyHelper(value, archType) {
|
|
// creates a shallow copy, even if it is a map or set
|
|
switch (archType) {
|
|
case 2
|
|
/* Map */
|
|
:
|
|
return new Map(value);
|
|
|
|
case 3
|
|
/* Set */
|
|
:
|
|
// Set will be cloned as array temporarily, so that we can replace individual items
|
|
return Array.from(value);
|
|
}
|
|
|
|
return shallowCopy(value);
|
|
}
|
|
|
|
function enableES5() {
|
|
function willFinalizeES5_(scope, result, isReplaced) {
|
|
if (!isReplaced) {
|
|
if (scope.patches_) {
|
|
markChangesRecursively(scope.drafts_[0]);
|
|
} // This is faster when we don't care about which attributes changed.
|
|
|
|
|
|
markChangesSweep(scope.drafts_);
|
|
} // When a child draft is returned, look for changes.
|
|
else if (isDraft(result) && result[DRAFT_STATE].scope_ === scope) {
|
|
markChangesSweep(scope.drafts_);
|
|
}
|
|
}
|
|
|
|
function createES5Draft(isArray, base) {
|
|
if (isArray) {
|
|
var draft = new Array(base.length);
|
|
|
|
for (var i = 0; i < base.length; i++) {
|
|
Object.defineProperty(draft, "" + i, proxyProperty(i, true));
|
|
}
|
|
|
|
return draft;
|
|
} else {
|
|
var _descriptors = getOwnPropertyDescriptors(base);
|
|
|
|
delete _descriptors[DRAFT_STATE];
|
|
var keys = ownKeys(_descriptors);
|
|
|
|
for (var _i = 0; _i < keys.length; _i++) {
|
|
var key = keys[_i];
|
|
_descriptors[key] = proxyProperty(key, isArray || !!_descriptors[key].enumerable);
|
|
}
|
|
|
|
return Object.create(Object.getPrototypeOf(base), _descriptors);
|
|
}
|
|
}
|
|
|
|
function createES5Proxy_(base, parent) {
|
|
var isArray = Array.isArray(base);
|
|
var draft = createES5Draft(isArray, base);
|
|
var state = {
|
|
type_: isArray ? 5
|
|
/* ES5Array */
|
|
: 4
|
|
/* ES5Object */
|
|
,
|
|
scope_: parent ? parent.scope_ : getCurrentScope(),
|
|
modified_: false,
|
|
finalized_: false,
|
|
assigned_: {},
|
|
parent_: parent,
|
|
// base is the object we are drafting
|
|
base_: base,
|
|
// draft is the draft object itself, that traps all reads and reads from either the base (if unmodified) or copy (if modified)
|
|
draft_: draft,
|
|
copy_: null,
|
|
revoked_: false,
|
|
isManual_: false
|
|
};
|
|
Object.defineProperty(draft, DRAFT_STATE, {
|
|
value: state,
|
|
// enumerable: false <- the default
|
|
writable: true
|
|
});
|
|
return draft;
|
|
} // property descriptors are recycled to make sure we don't create a get and set closure per property,
|
|
// but share them all instead
|
|
|
|
|
|
var descriptors = {};
|
|
|
|
function proxyProperty(prop, enumerable) {
|
|
var desc = descriptors[prop];
|
|
|
|
if (desc) {
|
|
desc.enumerable = enumerable;
|
|
} else {
|
|
descriptors[prop] = desc = {
|
|
configurable: true,
|
|
enumerable: enumerable,
|
|
get: function get() {
|
|
var state = this[DRAFT_STATE];
|
|
assertUnrevoked(state); // @ts-ignore
|
|
|
|
return objectTraps.get(state, prop);
|
|
},
|
|
set: function set(value) {
|
|
var state = this[DRAFT_STATE];
|
|
assertUnrevoked(state); // @ts-ignore
|
|
|
|
objectTraps.set(state, prop, value);
|
|
}
|
|
};
|
|
}
|
|
|
|
return desc;
|
|
} // This looks expensive, but only proxies are visited, and only objects without known changes are scanned.
|
|
|
|
|
|
function markChangesSweep(drafts) {
|
|
// The natural order of drafts in the `scope` array is based on when they
|
|
// were accessed. By processing drafts in reverse natural order, we have a
|
|
// better chance of processing leaf nodes first. When a leaf node is known to
|
|
// have changed, we can avoid any traversal of its ancestor nodes.
|
|
for (var i = drafts.length - 1; i >= 0; i--) {
|
|
var state = drafts[i][DRAFT_STATE];
|
|
|
|
if (!state.modified_) {
|
|
switch (state.type_) {
|
|
case 5
|
|
/* ES5Array */
|
|
:
|
|
if (hasArrayChanges(state)) markChanged(state);
|
|
break;
|
|
|
|
case 4
|
|
/* ES5Object */
|
|
:
|
|
if (hasObjectChanges(state)) markChanged(state);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function markChangesRecursively(object) {
|
|
if (!object || typeof object !== "object") return;
|
|
var state = object[DRAFT_STATE];
|
|
if (!state) return;
|
|
var base_ = state.base_,
|
|
draft_ = state.draft_,
|
|
assigned_ = state.assigned_,
|
|
type_ = state.type_;
|
|
|
|
if (type_ === 4
|
|
/* ES5Object */
|
|
) {
|
|
// Look for added keys.
|
|
// probably there is a faster way to detect changes, as sweep + recurse seems to do some
|
|
// unnecessary work.
|
|
// also: probably we can store the information we detect here, to speed up tree finalization!
|
|
each(draft_, function (key) {
|
|
if (key === DRAFT_STATE) return; // The `undefined` check is a fast path for pre-existing keys.
|
|
|
|
if (base_[key] === undefined && !has(base_, key)) {
|
|
assigned_[key] = true;
|
|
markChanged(state);
|
|
} else if (!assigned_[key]) {
|
|
// Only untouched properties trigger recursion.
|
|
markChangesRecursively(draft_[key]);
|
|
}
|
|
}); // Look for removed keys.
|
|
|
|
each(base_, function (key) {
|
|
// The `undefined` check is a fast path for pre-existing keys.
|
|
if (draft_[key] === undefined && !has(draft_, key)) {
|
|
assigned_[key] = false;
|
|
markChanged(state);
|
|
}
|
|
});
|
|
} else if (type_ === 5
|
|
/* ES5Array */
|
|
) {
|
|
if (hasArrayChanges(state)) {
|
|
markChanged(state);
|
|
assigned_.length = true;
|
|
}
|
|
|
|
if (draft_.length < base_.length) {
|
|
for (var i = draft_.length; i < base_.length; i++) {
|
|
assigned_[i] = false;
|
|
}
|
|
} else {
|
|
for (var _i2 = base_.length; _i2 < draft_.length; _i2++) {
|
|
assigned_[_i2] = true;
|
|
}
|
|
} // Minimum count is enough, the other parts has been processed.
|
|
|
|
|
|
var min = Math.min(draft_.length, base_.length);
|
|
|
|
for (var _i3 = 0; _i3 < min; _i3++) {
|
|
// Only untouched indices trigger recursion.
|
|
if (!draft_.hasOwnProperty(_i3)) {
|
|
assigned_[_i3] = true;
|
|
}
|
|
|
|
if (assigned_[_i3] === undefined) markChangesRecursively(draft_[_i3]);
|
|
}
|
|
}
|
|
}
|
|
|
|
function hasObjectChanges(state) {
|
|
var base_ = state.base_,
|
|
draft_ = state.draft_; // Search for added keys and changed keys. Start at the back, because
|
|
// non-numeric keys are ordered by time of definition on the object.
|
|
|
|
var keys = ownKeys(draft_);
|
|
|
|
for (var i = keys.length - 1; i >= 0; i--) {
|
|
var key = keys[i];
|
|
if (key === DRAFT_STATE) continue;
|
|
var baseValue = base_[key]; // The `undefined` check is a fast path for pre-existing keys.
|
|
|
|
if (baseValue === undefined && !has(base_, key)) {
|
|
return true;
|
|
} // Once a base key is deleted, future changes go undetected, because its
|
|
// descriptor is erased. This branch detects any missed changes.
|
|
else {
|
|
var value = draft_[key];
|
|
|
|
var _state = value && value[DRAFT_STATE];
|
|
|
|
if (_state ? _state.base_ !== baseValue : !is(value, baseValue)) {
|
|
return true;
|
|
}
|
|
}
|
|
} // At this point, no keys were added or changed.
|
|
// Compare key count to determine if keys were deleted.
|
|
|
|
|
|
var baseIsDraft = !!base_[DRAFT_STATE];
|
|
return keys.length !== ownKeys(base_).length + (baseIsDraft ? 0 : 1); // + 1 to correct for DRAFT_STATE
|
|
}
|
|
|
|
function hasArrayChanges(state) {
|
|
var draft_ = state.draft_;
|
|
if (draft_.length !== state.base_.length) return true; // See #116
|
|
// If we first shorten the length, our array interceptors will be removed.
|
|
// If after that new items are added, result in the same original length,
|
|
// those last items will have no intercepting property.
|
|
// So if there is no own descriptor on the last position, we know that items were removed and added
|
|
// N.B.: splice, unshift, etc only shift values around, but not prop descriptors, so we only have to check
|
|
// the last one
|
|
// last descriptor can be not a trap, if the array was extended
|
|
|
|
var descriptor = Object.getOwnPropertyDescriptor(draft_, draft_.length - 1); // descriptor can be null, but only for newly created sparse arrays, eg. new Array(10)
|
|
|
|
if (descriptor && !descriptor.get) return true; // if we miss a property, it has been deleted, so array probobaly changed
|
|
|
|
for (var i = 0; i < draft_.length; i++) {
|
|
if (!draft_.hasOwnProperty(i)) return true;
|
|
} // For all other cases, we don't have to compare, as they would have been picked up by the index setters
|
|
|
|
|
|
return false;
|
|
}
|
|
|
|
function hasChanges_(state) {
|
|
return state.type_ === 4
|
|
/* ES5Object */
|
|
? hasObjectChanges(state) : hasArrayChanges(state);
|
|
}
|
|
|
|
function assertUnrevoked(state
|
|
/*ES5State | MapState | SetState*/
|
|
) {
|
|
if (state.revoked_) die(3, JSON.stringify(latest(state)));
|
|
}
|
|
|
|
loadPlugin("ES5", {
|
|
createES5Proxy_: createES5Proxy_,
|
|
willFinalizeES5_: willFinalizeES5_,
|
|
hasChanges_: hasChanges_
|
|
});
|
|
}
|
|
|
|
function enablePatches() {
|
|
var REPLACE = "replace";
|
|
var ADD = "add";
|
|
var REMOVE = "remove";
|
|
|
|
function generatePatches_(state, basePath, patches, inversePatches) {
|
|
switch (state.type_) {
|
|
case 0
|
|
/* ProxyObject */
|
|
:
|
|
case 4
|
|
/* ES5Object */
|
|
:
|
|
case 2
|
|
/* Map */
|
|
:
|
|
return generatePatchesFromAssigned(state, basePath, patches, inversePatches);
|
|
|
|
case 5
|
|
/* ES5Array */
|
|
:
|
|
case 1
|
|
/* ProxyArray */
|
|
:
|
|
return generateArrayPatches(state, basePath, patches, inversePatches);
|
|
|
|
case 3
|
|
/* Set */
|
|
:
|
|
return generateSetPatches(state, basePath, patches, inversePatches);
|
|
}
|
|
}
|
|
|
|
function generateArrayPatches(state, basePath, patches, inversePatches) {
|
|
var base_ = state.base_,
|
|
assigned_ = state.assigned_;
|
|
var copy_ = state.copy_; // Reduce complexity by ensuring `base` is never longer.
|
|
|
|
if (copy_.length < base_.length) {
|
|
var _ref = [copy_, base_];
|
|
base_ = _ref[0];
|
|
copy_ = _ref[1];
|
|
var _ref2 = [inversePatches, patches];
|
|
patches = _ref2[0];
|
|
inversePatches = _ref2[1];
|
|
} // Process replaced indices.
|
|
|
|
|
|
for (var i = 0; i < base_.length; i++) {
|
|
if (assigned_[i] && copy_[i] !== base_[i]) {
|
|
var path = basePath.concat([i]);
|
|
patches.push({
|
|
op: REPLACE,
|
|
path: path,
|
|
// Need to maybe clone it, as it can in fact be the original value
|
|
// due to the base/copy inversion at the start of this function
|
|
value: clonePatchValueIfNeeded(copy_[i])
|
|
});
|
|
inversePatches.push({
|
|
op: REPLACE,
|
|
path: path,
|
|
value: clonePatchValueIfNeeded(base_[i])
|
|
});
|
|
}
|
|
} // Process added indices.
|
|
|
|
|
|
for (var _i = base_.length; _i < copy_.length; _i++) {
|
|
var _path = basePath.concat([_i]);
|
|
|
|
patches.push({
|
|
op: ADD,
|
|
path: _path,
|
|
// Need to maybe clone it, as it can in fact be the original value
|
|
// due to the base/copy inversion at the start of this function
|
|
value: clonePatchValueIfNeeded(copy_[_i])
|
|
});
|
|
}
|
|
|
|
if (base_.length < copy_.length) {
|
|
inversePatches.push({
|
|
op: REPLACE,
|
|
path: basePath.concat(["length"]),
|
|
value: base_.length
|
|
});
|
|
}
|
|
} // This is used for both Map objects and normal objects.
|
|
|
|
|
|
function generatePatchesFromAssigned(state, basePath, patches, inversePatches) {
|
|
var base_ = state.base_,
|
|
copy_ = state.copy_;
|
|
each(state.assigned_, function (key, assignedValue) {
|
|
var origValue = get(base_, key);
|
|
var value = get(copy_, key);
|
|
var op = !assignedValue ? REMOVE : has(base_, key) ? REPLACE : ADD;
|
|
if (origValue === value && op === REPLACE) return;
|
|
var path = basePath.concat(key);
|
|
patches.push(op === REMOVE ? {
|
|
op: op,
|
|
path: path
|
|
} : {
|
|
op: op,
|
|
path: path,
|
|
value: value
|
|
});
|
|
inversePatches.push(op === ADD ? {
|
|
op: REMOVE,
|
|
path: path
|
|
} : op === REMOVE ? {
|
|
op: ADD,
|
|
path: path,
|
|
value: clonePatchValueIfNeeded(origValue)
|
|
} : {
|
|
op: REPLACE,
|
|
path: path,
|
|
value: clonePatchValueIfNeeded(origValue)
|
|
});
|
|
});
|
|
}
|
|
|
|
function generateSetPatches(state, basePath, patches, inversePatches) {
|
|
var base_ = state.base_,
|
|
copy_ = state.copy_;
|
|
var i = 0;
|
|
base_.forEach(function (value) {
|
|
if (!copy_.has(value)) {
|
|
var path = basePath.concat([i]);
|
|
patches.push({
|
|
op: REMOVE,
|
|
path: path,
|
|
value: value
|
|
});
|
|
inversePatches.unshift({
|
|
op: ADD,
|
|
path: path,
|
|
value: value
|
|
});
|
|
}
|
|
|
|
i++;
|
|
});
|
|
i = 0;
|
|
copy_.forEach(function (value) {
|
|
if (!base_.has(value)) {
|
|
var path = basePath.concat([i]);
|
|
patches.push({
|
|
op: ADD,
|
|
path: path,
|
|
value: value
|
|
});
|
|
inversePatches.unshift({
|
|
op: REMOVE,
|
|
path: path,
|
|
value: value
|
|
});
|
|
}
|
|
|
|
i++;
|
|
});
|
|
}
|
|
|
|
function generateReplacementPatches_(baseValue, replacement, patches, inversePatches) {
|
|
patches.push({
|
|
op: REPLACE,
|
|
path: [],
|
|
value: replacement === NOTHING ? undefined : replacement
|
|
});
|
|
inversePatches.push({
|
|
op: REPLACE,
|
|
path: [],
|
|
value: baseValue
|
|
});
|
|
}
|
|
|
|
function applyPatches_(draft, patches) {
|
|
patches.forEach(function (patch) {
|
|
var path = patch.path,
|
|
op = patch.op;
|
|
var base = draft;
|
|
|
|
for (var i = 0; i < path.length - 1; i++) {
|
|
var parentType = getArchtype(base);
|
|
var p = path[i];
|
|
|
|
if (typeof p !== "string" && typeof p !== "number") {
|
|
p = "" + p;
|
|
} // See #738, avoid prototype pollution
|
|
|
|
|
|
if ((parentType === 0
|
|
/* Object */
|
|
|| parentType === 1
|
|
/* Array */
|
|
) && (p === "__proto__" || p === "constructor")) die(24);
|
|
if (typeof base === "function" && p === "prototype") die(24);
|
|
base = get(base, p);
|
|
if (typeof base !== "object") die(15, path.join("/"));
|
|
}
|
|
|
|
var type = getArchtype(base);
|
|
var value = deepClonePatchValue(patch.value); // used to clone patch to ensure original patch is not modified, see #411
|
|
|
|
var key = path[path.length - 1];
|
|
|
|
switch (op) {
|
|
case REPLACE:
|
|
switch (type) {
|
|
case 2
|
|
/* Map */
|
|
:
|
|
return base.set(key, value);
|
|
|
|
/* istanbul ignore next */
|
|
|
|
case 3
|
|
/* Set */
|
|
:
|
|
die(16);
|
|
|
|
default:
|
|
// if value is an object, then it's assigned by reference
|
|
// in the following add or remove ops, the value field inside the patch will also be modifyed
|
|
// so we use value from the cloned patch
|
|
// @ts-ignore
|
|
return base[key] = value;
|
|
}
|
|
|
|
case ADD:
|
|
switch (type) {
|
|
case 1
|
|
/* Array */
|
|
:
|
|
return key === "-" ? base.push(value) : base.splice(key, 0, value);
|
|
|
|
case 2
|
|
/* Map */
|
|
:
|
|
return base.set(key, value);
|
|
|
|
case 3
|
|
/* Set */
|
|
:
|
|
return base.add(value);
|
|
|
|
default:
|
|
return base[key] = value;
|
|
}
|
|
|
|
case REMOVE:
|
|
switch (type) {
|
|
case 1
|
|
/* Array */
|
|
:
|
|
return base.splice(key, 1);
|
|
|
|
case 2
|
|
/* Map */
|
|
:
|
|
return base.delete(key);
|
|
|
|
case 3
|
|
/* Set */
|
|
:
|
|
return base.delete(patch.value);
|
|
|
|
default:
|
|
return delete base[key];
|
|
}
|
|
|
|
default:
|
|
die(17, op);
|
|
}
|
|
});
|
|
return draft;
|
|
}
|
|
|
|
function deepClonePatchValue(obj) {
|
|
if (!isDraftable(obj)) return obj;
|
|
if (Array.isArray(obj)) return obj.map(deepClonePatchValue);
|
|
if (isMap(obj)) return new Map(Array.from(obj.entries()).map(function (_ref3) {
|
|
var k = _ref3[0],
|
|
v = _ref3[1];
|
|
return [k, deepClonePatchValue(v)];
|
|
}));
|
|
if (isSet(obj)) return new Set(Array.from(obj).map(deepClonePatchValue));
|
|
var cloned = Object.create(Object.getPrototypeOf(obj));
|
|
|
|
for (var key in obj) {
|
|
cloned[key] = deepClonePatchValue(obj[key]);
|
|
}
|
|
|
|
if (has(obj, DRAFTABLE)) cloned[DRAFTABLE] = obj[DRAFTABLE];
|
|
return cloned;
|
|
}
|
|
|
|
function clonePatchValueIfNeeded(obj) {
|
|
if (isDraft(obj)) {
|
|
return deepClonePatchValue(obj);
|
|
} else return obj;
|
|
}
|
|
|
|
loadPlugin("Patches", {
|
|
applyPatches_: applyPatches_,
|
|
generatePatches_: generatePatches_,
|
|
generateReplacementPatches_: generateReplacementPatches_
|
|
});
|
|
}
|
|
|
|
// types only!
|
|
function enableMapSet() {
|
|
/* istanbul ignore next */
|
|
var _extendStatics = function extendStatics(d, b) {
|
|
_extendStatics = Object.setPrototypeOf || {
|
|
__proto__: []
|
|
} instanceof Array && function (d, b) {
|
|
d.__proto__ = b;
|
|
} || function (d, b) {
|
|
for (var p in b) {
|
|
if (b.hasOwnProperty(p)) d[p] = b[p];
|
|
}
|
|
};
|
|
|
|
return _extendStatics(d, b);
|
|
}; // Ugly hack to resolve #502 and inherit built in Map / Set
|
|
|
|
|
|
function __extends(d, b) {
|
|
_extendStatics(d, b);
|
|
|
|
function __() {
|
|
this.constructor = d;
|
|
}
|
|
|
|
d.prototype = ( // @ts-ignore
|
|
__.prototype = b.prototype, new __());
|
|
}
|
|
|
|
var DraftMap = function (_super) {
|
|
__extends(DraftMap, _super); // Create class manually, cause #502
|
|
|
|
|
|
function DraftMap(target, parent) {
|
|
this[DRAFT_STATE] = {
|
|
type_: 2
|
|
/* Map */
|
|
,
|
|
parent_: parent,
|
|
scope_: parent ? parent.scope_ : getCurrentScope(),
|
|
modified_: false,
|
|
finalized_: false,
|
|
copy_: undefined,
|
|
assigned_: undefined,
|
|
base_: target,
|
|
draft_: this,
|
|
isManual_: false,
|
|
revoked_: false
|
|
};
|
|
return this;
|
|
}
|
|
|
|
var p = DraftMap.prototype;
|
|
Object.defineProperty(p, "size", {
|
|
get: function get() {
|
|
return latest(this[DRAFT_STATE]).size;
|
|
} // enumerable: false,
|
|
// configurable: true
|
|
|
|
});
|
|
|
|
p.has = function (key) {
|
|
return latest(this[DRAFT_STATE]).has(key);
|
|
};
|
|
|
|
p.set = function (key, value) {
|
|
var state = this[DRAFT_STATE];
|
|
assertUnrevoked(state);
|
|
|
|
if (!latest(state).has(key) || latest(state).get(key) !== value) {
|
|
prepareMapCopy(state);
|
|
markChanged(state);
|
|
state.assigned_.set(key, true);
|
|
state.copy_.set(key, value);
|
|
state.assigned_.set(key, true);
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
p.delete = function (key) {
|
|
if (!this.has(key)) {
|
|
return false;
|
|
}
|
|
|
|
var state = this[DRAFT_STATE];
|
|
assertUnrevoked(state);
|
|
prepareMapCopy(state);
|
|
markChanged(state);
|
|
|
|
if (state.base_.has(key)) {
|
|
state.assigned_.set(key, false);
|
|
} else {
|
|
state.assigned_.delete(key);
|
|
}
|
|
|
|
state.copy_.delete(key);
|
|
return true;
|
|
};
|
|
|
|
p.clear = function () {
|
|
var state = this[DRAFT_STATE];
|
|
assertUnrevoked(state);
|
|
|
|
if (latest(state).size) {
|
|
prepareMapCopy(state);
|
|
markChanged(state);
|
|
state.assigned_ = new Map();
|
|
each(state.base_, function (key) {
|
|
state.assigned_.set(key, false);
|
|
});
|
|
state.copy_.clear();
|
|
}
|
|
};
|
|
|
|
p.forEach = function (cb, thisArg) {
|
|
var _this = this;
|
|
|
|
var state = this[DRAFT_STATE];
|
|
latest(state).forEach(function (_value, key, _map) {
|
|
cb.call(thisArg, _this.get(key), key, _this);
|
|
});
|
|
};
|
|
|
|
p.get = function (key) {
|
|
var state = this[DRAFT_STATE];
|
|
assertUnrevoked(state);
|
|
var value = latest(state).get(key);
|
|
|
|
if (state.finalized_ || !isDraftable(value)) {
|
|
return value;
|
|
}
|
|
|
|
if (value !== state.base_.get(key)) {
|
|
return value; // either already drafted or reassigned
|
|
} // despite what it looks, this creates a draft only once, see above condition
|
|
|
|
|
|
var draft = createProxy(state.scope_.immer_, value, state);
|
|
prepareMapCopy(state);
|
|
state.copy_.set(key, draft);
|
|
return draft;
|
|
};
|
|
|
|
p.keys = function () {
|
|
return latest(this[DRAFT_STATE]).keys();
|
|
};
|
|
|
|
p.values = function () {
|
|
var _this2 = this,
|
|
_ref;
|
|
|
|
var iterator = this.keys();
|
|
return _ref = {}, _ref[iteratorSymbol] = function () {
|
|
return _this2.values();
|
|
}, _ref.next = function next() {
|
|
var r = iterator.next();
|
|
/* istanbul ignore next */
|
|
|
|
if (r.done) return r;
|
|
|
|
var value = _this2.get(r.value);
|
|
|
|
return {
|
|
done: false,
|
|
value: value
|
|
};
|
|
}, _ref;
|
|
};
|
|
|
|
p.entries = function () {
|
|
var _this3 = this,
|
|
_ref2;
|
|
|
|
var iterator = this.keys();
|
|
return _ref2 = {}, _ref2[iteratorSymbol] = function () {
|
|
return _this3.entries();
|
|
}, _ref2.next = function next() {
|
|
var r = iterator.next();
|
|
/* istanbul ignore next */
|
|
|
|
if (r.done) return r;
|
|
|
|
var value = _this3.get(r.value);
|
|
|
|
return {
|
|
done: false,
|
|
value: [r.value, value]
|
|
};
|
|
}, _ref2;
|
|
};
|
|
|
|
p[iteratorSymbol] = function () {
|
|
return this.entries();
|
|
};
|
|
|
|
return DraftMap;
|
|
}(Map);
|
|
|
|
function proxyMap_(target, parent) {
|
|
// @ts-ignore
|
|
return new DraftMap(target, parent);
|
|
}
|
|
|
|
function prepareMapCopy(state) {
|
|
if (!state.copy_) {
|
|
state.assigned_ = new Map();
|
|
state.copy_ = new Map(state.base_);
|
|
}
|
|
}
|
|
|
|
var DraftSet = function (_super) {
|
|
__extends(DraftSet, _super); // Create class manually, cause #502
|
|
|
|
|
|
function DraftSet(target, parent) {
|
|
this[DRAFT_STATE] = {
|
|
type_: 3
|
|
/* Set */
|
|
,
|
|
parent_: parent,
|
|
scope_: parent ? parent.scope_ : getCurrentScope(),
|
|
modified_: false,
|
|
finalized_: false,
|
|
copy_: undefined,
|
|
base_: target,
|
|
draft_: this,
|
|
drafts_: new Map(),
|
|
revoked_: false,
|
|
isManual_: false
|
|
};
|
|
return this;
|
|
}
|
|
|
|
var p = DraftSet.prototype;
|
|
Object.defineProperty(p, "size", {
|
|
get: function get() {
|
|
return latest(this[DRAFT_STATE]).size;
|
|
} // enumerable: true,
|
|
|
|
});
|
|
|
|
p.has = function (value) {
|
|
var state = this[DRAFT_STATE];
|
|
assertUnrevoked(state); // bit of trickery here, to be able to recognize both the value, and the draft of its value
|
|
|
|
if (!state.copy_) {
|
|
return state.base_.has(value);
|
|
}
|
|
|
|
if (state.copy_.has(value)) return true;
|
|
if (state.drafts_.has(value) && state.copy_.has(state.drafts_.get(value))) return true;
|
|
return false;
|
|
};
|
|
|
|
p.add = function (value) {
|
|
var state = this[DRAFT_STATE];
|
|
assertUnrevoked(state);
|
|
|
|
if (!this.has(value)) {
|
|
prepareSetCopy(state);
|
|
markChanged(state);
|
|
state.copy_.add(value);
|
|
}
|
|
|
|
return this;
|
|
};
|
|
|
|
p.delete = function (value) {
|
|
if (!this.has(value)) {
|
|
return false;
|
|
}
|
|
|
|
var state = this[DRAFT_STATE];
|
|
assertUnrevoked(state);
|
|
prepareSetCopy(state);
|
|
markChanged(state);
|
|
return state.copy_.delete(value) || (state.drafts_.has(value) ? state.copy_.delete(state.drafts_.get(value)) :
|
|
/* istanbul ignore next */
|
|
false);
|
|
};
|
|
|
|
p.clear = function () {
|
|
var state = this[DRAFT_STATE];
|
|
assertUnrevoked(state);
|
|
|
|
if (latest(state).size) {
|
|
prepareSetCopy(state);
|
|
markChanged(state);
|
|
state.copy_.clear();
|
|
}
|
|
};
|
|
|
|
p.values = function () {
|
|
var state = this[DRAFT_STATE];
|
|
assertUnrevoked(state);
|
|
prepareSetCopy(state);
|
|
return state.copy_.values();
|
|
};
|
|
|
|
p.entries = function entries() {
|
|
var state = this[DRAFT_STATE];
|
|
assertUnrevoked(state);
|
|
prepareSetCopy(state);
|
|
return state.copy_.entries();
|
|
};
|
|
|
|
p.keys = function () {
|
|
return this.values();
|
|
};
|
|
|
|
p[iteratorSymbol] = function () {
|
|
return this.values();
|
|
};
|
|
|
|
p.forEach = function forEach(cb, thisArg) {
|
|
var iterator = this.values();
|
|
var result = iterator.next();
|
|
|
|
while (!result.done) {
|
|
cb.call(thisArg, result.value, result.value, this);
|
|
result = iterator.next();
|
|
}
|
|
};
|
|
|
|
return DraftSet;
|
|
}(Set);
|
|
|
|
function proxySet_(target, parent) {
|
|
// @ts-ignore
|
|
return new DraftSet(target, parent);
|
|
}
|
|
|
|
function prepareSetCopy(state) {
|
|
if (!state.copy_) {
|
|
// create drafts for all entries to preserve insertion order
|
|
state.copy_ = new Set();
|
|
state.base_.forEach(function (value) {
|
|
if (isDraftable(value)) {
|
|
var draft = createProxy(state.scope_.immer_, value, state);
|
|
state.drafts_.set(value, draft);
|
|
state.copy_.add(draft);
|
|
} else {
|
|
state.copy_.add(value);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
function assertUnrevoked(state
|
|
/*ES5State | MapState | SetState*/
|
|
) {
|
|
if (state.revoked_) die(3, JSON.stringify(latest(state)));
|
|
}
|
|
|
|
loadPlugin("MapSet", {
|
|
proxyMap_: proxyMap_,
|
|
proxySet_: proxySet_
|
|
});
|
|
}
|
|
|
|
function enableAllPlugins() {
|
|
enableES5();
|
|
enableMapSet();
|
|
enablePatches();
|
|
}
|
|
|
|
var immer =
|
|
/*#__PURE__*/
|
|
new Immer();
|
|
/**
|
|
* The `produce` function takes a value and a "recipe function" (whose
|
|
* return value often depends on the base state). The recipe function is
|
|
* free to mutate its first argument however it wants. All mutations are
|
|
* only ever applied to a __copy__ of the base state.
|
|
*
|
|
* Pass only a function to create a "curried producer" which relieves you
|
|
* from passing the recipe function every time.
|
|
*
|
|
* Only plain objects and arrays are made mutable. All other objects are
|
|
* considered uncopyable.
|
|
*
|
|
* Note: This function is __bound__ to its `Immer` instance.
|
|
*
|
|
* @param {any} base - the initial state
|
|
* @param {Function} producer - function that receives a proxy of the base state as first argument and which can be freely modified
|
|
* @param {Function} patchListener - optional function that will be called with all the patches produced here
|
|
* @returns {any} a new state, or the initial state if nothing was modified
|
|
*/
|
|
|
|
var produce = immer.produce;
|
|
/**
|
|
* Like `produce`, but `produceWithPatches` always returns a tuple
|
|
* [nextState, patches, inversePatches] (instead of just the next state)
|
|
*/
|
|
|
|
var produceWithPatches =
|
|
/*#__PURE__*/
|
|
immer.produceWithPatches.bind(immer);
|
|
/**
|
|
* Pass true to automatically freeze all copies created by Immer.
|
|
*
|
|
* Always freeze by default, even in production mode
|
|
*/
|
|
|
|
var setAutoFreeze =
|
|
/*#__PURE__*/
|
|
immer.setAutoFreeze.bind(immer);
|
|
/**
|
|
* Pass true to use the ES2015 `Proxy` class when creating drafts, which is
|
|
* always faster than using ES5 proxies.
|
|
*
|
|
* By default, feature detection is used, so calling this is rarely necessary.
|
|
*/
|
|
|
|
var setUseProxies =
|
|
/*#__PURE__*/
|
|
immer.setUseProxies.bind(immer);
|
|
/**
|
|
* Apply an array of Immer patches to the first argument.
|
|
*
|
|
* This function is a producer, which means copy-on-write is in effect.
|
|
*/
|
|
|
|
var applyPatches =
|
|
/*#__PURE__*/
|
|
immer.applyPatches.bind(immer);
|
|
/**
|
|
* Create an Immer draft from the given base state, which may be a draft itself.
|
|
* The draft can be modified until you finalize it with the `finishDraft` function.
|
|
*/
|
|
|
|
var createDraft =
|
|
/*#__PURE__*/
|
|
immer.createDraft.bind(immer);
|
|
/**
|
|
* Finalize an Immer draft from a `createDraft` call, returning the base state
|
|
* (if no changes were made) or a modified copy. The draft must *not* be
|
|
* mutated afterwards.
|
|
*
|
|
* Pass a function as the 2nd argument to generate Immer patches based on the
|
|
* changes that were made.
|
|
*/
|
|
|
|
var finishDraft =
|
|
/*#__PURE__*/
|
|
immer.finishDraft.bind(immer);
|
|
/**
|
|
* This function is actually a no-op, but can be used to cast an immutable type
|
|
* to an draft type and make TypeScript happy
|
|
*
|
|
* @param value
|
|
*/
|
|
|
|
function castDraft(value) {
|
|
return value;
|
|
}
|
|
/**
|
|
* This function is actually a no-op, but can be used to cast a mutable type
|
|
* to an immutable type and make TypeScript happy
|
|
* @param value
|
|
*/
|
|
|
|
function castImmutable(value) {
|
|
return value;
|
|
}
|
|
|
|
exports.Immer = Immer;
|
|
exports.applyPatches = applyPatches;
|
|
exports.castDraft = castDraft;
|
|
exports.castImmutable = castImmutable;
|
|
exports.createDraft = createDraft;
|
|
exports.current = current;
|
|
exports.default = produce;
|
|
exports.enableAllPlugins = enableAllPlugins;
|
|
exports.enableES5 = enableES5;
|
|
exports.enableMapSet = enableMapSet;
|
|
exports.enablePatches = enablePatches;
|
|
exports.finishDraft = finishDraft;
|
|
exports.freeze = freeze;
|
|
exports.immerable = DRAFTABLE;
|
|
exports.isDraft = isDraft;
|
|
exports.isDraftable = isDraftable;
|
|
exports.nothing = NOTHING;
|
|
exports.original = original;
|
|
exports.produce = produce;
|
|
exports.produceWithPatches = produceWithPatches;
|
|
exports.setAutoFreeze = setAutoFreeze;
|
|
exports.setUseProxies = setUseProxies;
|
|
|
|
Object.defineProperty(exports, '__esModule', { value: true });
|
|
|
|
})));
|
|
//# sourceMappingURL=immer.umd.development.js.map
|