49 lines
2.6 KiB
JavaScript
49 lines
2.6 KiB
JavaScript
"use strict";
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var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) || function (receiver, state, kind, f) {
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if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a getter");
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if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot read private member from an object whose class did not declare it");
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return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
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};
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var __classPrivateFieldSet = (this && this.__classPrivateFieldSet) || function (receiver, state, value, kind, f) {
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if (kind === "m") throw new TypeError("Private method is not writable");
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if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a setter");
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if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot write private member to an object whose class did not declare it");
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return (kind === "a" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;
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};
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var _ExternalStore_hooks, _ExternalStore_snapshot, _ExternalStore_changed;
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Object.defineProperty(exports, "__esModule", { value: true });
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/**
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* Simple React hookable store with manual change notifications
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*/
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class ExternalStore {
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constructor() {
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_ExternalStore_hooks.set(this, []);
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_ExternalStore_snapshot.set(this, {});
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_ExternalStore_changed.set(this, true);
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}
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hook(fn) {
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__classPrivateFieldGet(this, _ExternalStore_hooks, "f").push({
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fn,
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});
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return () => {
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const idx = __classPrivateFieldGet(this, _ExternalStore_hooks, "f").findIndex(a => a.fn === fn);
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if (idx >= 0) {
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__classPrivateFieldGet(this, _ExternalStore_hooks, "f").splice(idx, 1);
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}
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};
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}
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snapshot() {
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if (__classPrivateFieldGet(this, _ExternalStore_changed, "f")) {
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__classPrivateFieldSet(this, _ExternalStore_snapshot, this.takeSnapshot(), "f");
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__classPrivateFieldSet(this, _ExternalStore_changed, false, "f");
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}
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return __classPrivateFieldGet(this, _ExternalStore_snapshot, "f");
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}
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notifyChange(sn) {
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__classPrivateFieldSet(this, _ExternalStore_changed, true, "f");
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__classPrivateFieldGet(this, _ExternalStore_hooks, "f").forEach(h => h.fn(sn));
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}
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}
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exports.default = ExternalStore;
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_ExternalStore_hooks = new WeakMap(), _ExternalStore_snapshot = new WeakMap(), _ExternalStore_changed = new WeakMap();
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//# sourceMappingURL=ExternalStore.js.map
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