q9

node_modules/alien-signals/cjs/effect.js

@@ -0,0 +1,73 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Effect = void 0;
+exports.effect = effect;
+const system_js_1 = require("./system.js");
+function effect(fn) {
+    const e = new Effect(fn);
+    e.run();
+    return e;
+}
+class Effect {
+    constructor(fn) {
+        this.fn = fn;
+        this.nextNotify = undefined;
+        // Dependency
+        this.subs = undefined;
+        this.subsTail = undefined;
+        this.linkedTrackId = -1;
+        // Subscriber
+        this.deps = undefined;
+        this.depsTail = undefined;
+        this.trackId = 0;
+        this.dirtyLevel = 3 /* DirtyLevels.Dirty */;
+        this.canPropagate = false;
+        const subVersion = system_js_1.System.activeTrackId;
+        if (subVersion !== 0 && this.linkedTrackId !== subVersion) {
+            this.linkedTrackId = subVersion;
+            system_js_1.Dependency.linkSubscriber(this, system_js_1.System.activeSub);
+            return;
+        }
+        const activeTrackId = system_js_1.System.activeEffectScopeTrackId;
+        if (activeTrackId !== 0 && this.linkedTrackId !== activeTrackId) {
+            this.linkedTrackId = activeTrackId;
+            system_js_1.Dependency.linkSubscriber(this, system_js_1.System.activeEffectScope);
+        }
+    }
+    notify() {
+        const dirtyLevel = this.dirtyLevel;
+        if (dirtyLevel === 1 /* DirtyLevels.SideEffectsOnly */) {
+            this.dirtyLevel = 0 /* DirtyLevels.None */;
+            system_js_1.Subscriber.runInnerEffects(this.deps);
+        }
+        else {
+            if (dirtyLevel === 2 /* DirtyLevels.MaybeDirty */) {
+                system_js_1.Subscriber.resolveMaybeDirty(this);
+            }
+            if (this.dirtyLevel === 3 /* DirtyLevels.Dirty */) {
+                this.run();
+            }
+            else {
+                system_js_1.Subscriber.runInnerEffects(this.deps);
+            }
+        }
+    }
+    run() {
+        const prevSub = system_js_1.Subscriber.startTrackDependencies(this);
+        try {
+            this.fn();
+        }
+        finally {
+            system_js_1.Subscriber.endTrackDependencies(this, prevSub);
+        }
+    }
+    stop() {
+        if (this.deps !== undefined) {
+            system_js_1.Subscriber.clearTrack(this.deps);
+            this.deps = undefined;
+            this.depsTail = undefined;
+        }
+        this.dirtyLevel = 3 /* DirtyLevels.Dirty */;
+    }
+}
+exports.Effect = Effect;