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events: allow use of AbortController with once

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Allows an AbortSignal to be passed in to events.once() to cancel
waiting on an event.

Signed-off-by: James M Snell <jasnell@gmail.com>

PR-URL: https://github.com/nodejs/node/pull/34911
Reviewed-By: Denys Otrishko <shishugi@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
This commit is contained in:
James M Snell 2020-08-24 13:11:23 -07:00 • committed by Node.js GitHub Bot
parent 37a8179673
commit 883fc779b6
4 changed files with 179 additions and 4 deletions
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10
lib/internal/validators.js
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@ -216,6 +216,15 @@ const validateCallback = hideStackFrames((callback) => {
throw new ERR_INVALID_CALLBACK(callback);
});
const validateAbortSignal = hideStackFrames((signal, name) => {
if (signal !== undefined &&
(signal === null ||
typeof signal !== 'object' ||
!('aborted' in signal))) {
throw new ERR_INVALID_ARG_TYPE(name, 'AbortSignal', signal);
}
});
module.exports = {
isInt32,
isUint32,
@ -234,4 +243,5 @@ module.exports = {
validateString,
validateUint32,
validateCallback,
validateAbortSignal,
};