1 | import { Action } from './scheduler/Action';
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2 | import { Subscription } from './Subscription';
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3 | import { SchedulerLike, SchedulerAction } from './types';
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4 | /**
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5 | * An execution context and a data structure to order tasks and schedule their
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6 | * execution. Provides a notion of (potentially virtual) time, through the
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7 | * `now()` getter method.
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8 | *
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9 | * Each unit of work in a Scheduler is called an `Action`.
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10 | *
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11 | * ```ts
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12 | * class Scheduler {
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13 | * now(): number;
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14 | * schedule(work, delay?, state?): Subscription;
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15 | * }
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16 | * ```
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17 | *
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18 | * @class Scheduler
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19 | * @deprecated Scheduler is an internal implementation detail of RxJS, and
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20 | * should not be used directly. Rather, create your own class and implement
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21 | * {@link SchedulerLike}
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22 | */
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23 | export declare class Scheduler implements SchedulerLike {
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24 | private SchedulerAction;
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25 | /**
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26 | * Note: the extra arrow function wrapper is to make testing by overriding
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27 | * Date.now easier.
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28 | * @nocollapse
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29 | */
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30 | static now: () => number;
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31 | constructor(SchedulerAction: typeof Action, now?: () => number);
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32 | /**
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33 | * A getter method that returns a number representing the current time
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34 | * (at the time this function was called) according to the scheduler's own
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35 | * internal clock.
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36 | * @return {number} A number that represents the current time. May or may not
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37 | * have a relation to wall-clock time. May or may not refer to a time unit
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38 | * (e.g. milliseconds).
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39 | */
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40 | now: () => number;
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41 | /**
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42 | * Schedules a function, `work`, for execution. May happen at some point in
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43 | * the future, according to the `delay` parameter, if specified. May be passed
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44 | * some context object, `state`, which will be passed to the `work` function.
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45 | *
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46 | * The given arguments will be processed an stored as an Action object in a
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47 | * queue of actions.
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48 | *
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49 | * @param {function(state: ?T): ?Subscription} work A function representing a
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50 | * task, or some unit of work to be executed by the Scheduler.
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51 | * @param {number} [delay] Time to wait before executing the work, where the
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52 | * time unit is implicit and defined by the Scheduler itself.
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53 | * @param {T} [state] Some contextual data that the `work` function uses when
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54 | * called by the Scheduler.
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55 | * @return {Subscription} A subscription in order to be able to unsubscribe
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56 | * the scheduled work.
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57 | */
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58 | schedule<T>(work: (this: SchedulerAction<T>, state?: T) => void, delay?: number, state?: T): Subscription;
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59 | }
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