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node_modules/rxjs/_esm2015/internal/scheduler/AsyncAction.js

@@ -0,0 +1,80 @@
+import { Action } from './Action';
+export class AsyncAction extends Action {
+    constructor(scheduler, work) {
+        super(scheduler, work);
+        this.scheduler = scheduler;
+        this.work = work;
+        this.pending = false;
+    }
+    schedule(state, delay = 0) {
+        if (this.closed) {
+            return this;
+        }
+        this.state = state;
+        const id = this.id;
+        const scheduler = this.scheduler;
+        if (id != null) {
+            this.id = this.recycleAsyncId(scheduler, id, delay);
+        }
+        this.pending = true;
+        this.delay = delay;
+        this.id = this.id || this.requestAsyncId(scheduler, this.id, delay);
+        return this;
+    }
+    requestAsyncId(scheduler, id, delay = 0) {
+        return setInterval(scheduler.flush.bind(scheduler, this), delay);
+    }
+    recycleAsyncId(scheduler, id, delay = 0) {
+        if (delay !== null && this.delay === delay && this.pending === false) {
+            return id;
+        }
+        clearInterval(id);
+        return undefined;
+    }
+    execute(state, delay) {
+        if (this.closed) {
+            return new Error('executing a cancelled action');
+        }
+        this.pending = false;
+        const error = this._execute(state, delay);
+        if (error) {
+            return error;
+        }
+        else if (this.pending === false && this.id != null) {
+            this.id = this.recycleAsyncId(this.scheduler, this.id, null);
+        }
+    }
+    _execute(state, delay) {
+        let errored = false;
+        let errorValue = undefined;
+        try {
+            this.work(state);
+        }
+        catch (e) {
+            errored = true;
+            errorValue = !!e && e || new Error(e);
+        }
+        if (errored) {
+            this.unsubscribe();
+            return errorValue;
+        }
+    }
+    _unsubscribe() {
+        const id = this.id;
+        const scheduler = this.scheduler;
+        const actions = scheduler.actions;
+        const index = actions.indexOf(this);
+        this.work = null;
+        this.state = null;
+        this.pending = false;
+        this.scheduler = null;
+        if (index !== -1) {
+            actions.splice(index, 1);
+        }
+        if (id != null) {
+            this.id = this.recycleAsyncId(scheduler, id, null);
+        }
+        this.delay = null;
+    }
+}
+//# sourceMappingURL=AsyncAction.js.map