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41 lines
1.2 KiB
TypeScript
41 lines
1.2 KiB
TypeScript
import { CompleteNotification, NextNotification, ErrorNotification } from './types';
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/**
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* A completion object optimized for memory use and created to be the
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* same "shape" as other notifications in v8.
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* @internal
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*/
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export const COMPLETE_NOTIFICATION = (() => createNotification('C', undefined, undefined) as CompleteNotification)();
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/**
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* Internal use only. Creates an optimized error notification that is the same "shape"
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* as other notifications.
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* @internal
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*/
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export function errorNotification(error: any): ErrorNotification {
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return createNotification('E', undefined, error) as any;
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}
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/**
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* Internal use only. Creates an optimized next notification that is the same "shape"
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* as other notifications.
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* @internal
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*/
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export function nextNotification<T>(value: T) {
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return createNotification('N', value, undefined) as NextNotification<T>;
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}
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/**
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* Ensures that all notifications created internally have the same "shape" in v8.
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*
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* TODO: This is only exported to support a crazy legacy test in `groupBy`.
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* @internal
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*/
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export function createNotification(kind: 'N' | 'E' | 'C', value: any, error: any) {
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return {
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kind,
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value,
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error,
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};
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}
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