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node_modules/rxjs/_esm2015/Scheduler.js

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+/**
+ * An execution context and a data structure to order tasks and schedule their
+ * execution. Provides a notion of (potentially virtual) time, through the
+ * `now()` getter method.
+ *
+ * Each unit of work in a Scheduler is called an {@link Action}.
+ *
+ * ```ts
+ * class Scheduler {
+ *   now(): number;
+ *   schedule(work, delay?, state?): Subscription;
+ * }
+ * ```
+ *
+ * @class Scheduler
+ */
+export class Scheduler {
+    constructor(SchedulerAction, now = Scheduler.now) {
+        this.SchedulerAction = SchedulerAction;
+        this.now = now;
+    }
+    /**
+     * Schedules a function, `work`, for execution. May happen at some point in
+     * the future, according to the `delay` parameter, if specified. May be passed
+     * some context object, `state`, which will be passed to the `work` function.
+     *
+     * The given arguments will be processed an stored as an Action object in a
+     * queue of actions.
+     *
+     * @param {function(state: ?T): ?Subscription} work A function representing a
+     * task, or some unit of work to be executed by the Scheduler.
+     * @param {number} [delay] Time to wait before executing the work, where the
+     * time unit is implicit and defined by the Scheduler itself.
+     * @param {T} [state] Some contextual data that the `work` function uses when
+     * called by the Scheduler.
+     * @return {Subscription} A subscription in order to be able to unsubscribe
+     * the scheduled work.
+     */
+    schedule(work, delay = 0, state) {
+        return new this.SchedulerAction(this, work).schedule(state, delay);
+    }
+}
+Scheduler.now = Date.now ? Date.now : () => +new Date();
+//# sourceMappingURL=Scheduler.js.map