timeoutProvider.tsā¢1.06 kB
import type { TimerHandle } from './timerHandle';
type SetTimeoutFunction = (handler: () => void, timeout?: number, ...args: any[]) => TimerHandle;
type ClearTimeoutFunction = (handle: TimerHandle) => void;
interface TimeoutProvider {
setTimeout: SetTimeoutFunction;
clearTimeout: ClearTimeoutFunction;
delegate:
| {
setTimeout: SetTimeoutFunction;
clearTimeout: ClearTimeoutFunction;
}
| undefined;
}
export const timeoutProvider: TimeoutProvider = {
// When accessing the delegate, use the variable rather than `this` so that
// the functions can be called without being bound to the provider.
setTimeout(handler: () => void, timeout?: number, ...args) {
const { delegate } = timeoutProvider;
if (delegate?.setTimeout) {
return delegate.setTimeout(handler, timeout, ...args);
}
return setTimeout(handler, timeout, ...args);
},
clearTimeout(handle) {
const { delegate } = timeoutProvider;
return (delegate?.clearTimeout || clearTimeout)(handle as any);
},
delegate: undefined,
};