37 lines
1.1 KiB
JavaScript
37 lines
1.1 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.Signal = void 0;
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exports.signal = signal;
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const system_js_1 = require("./system.js");
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function signal(oldValue) {
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return new Signal(oldValue);
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}
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class Signal {
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constructor(currentValue) {
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this.currentValue = currentValue;
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// Dependency
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this.subs = undefined;
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this.subsTail = undefined;
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this.linkedTrackId = -1;
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}
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get() {
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const activeTrackId = system_js_1.System.activeTrackId;
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if (activeTrackId !== 0 && this.linkedTrackId !== activeTrackId) {
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this.linkedTrackId = activeTrackId;
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system_js_1.Dependency.linkSubscriber(this, system_js_1.System.activeSub);
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}
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return this.currentValue;
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}
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set(value) {
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if (this.currentValue !== (this.currentValue = value)) {
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const subs = this.subs;
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if (subs !== undefined) {
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(0, system_js_1.startBatch)();
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system_js_1.Dependency.propagate(subs);
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(0, system_js_1.endBatch)();
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}
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}
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}
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}
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exports.Signal = Signal;
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