hexo/node_modules/p-timeout/index.js

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2024-05-09 16:35:20 +08:00
export class TimeoutError extends Error {
constructor(message) {
super(message);
this.name = 'TimeoutError';
}
}
/**
An error to be thrown when the request is aborted by AbortController.
DOMException is thrown instead of this Error when DOMException is available.
*/
export class AbortError extends Error {
constructor(message) {
super();
this.name = 'AbortError';
this.message = message;
}
}
/**
TODO: Remove AbortError and just throw DOMException when targeting Node 18.
*/
const getDOMException = errorMessage => globalThis.DOMException === undefined
? new AbortError(errorMessage)
: new DOMException(errorMessage);
/**
TODO: Remove below function and just 'reject(signal.reason)' when targeting Node 18.
*/
const getAbortedReason = signal => {
const reason = signal.reason === undefined
? getDOMException('This operation was aborted.')
: signal.reason;
return reason instanceof Error ? reason : getDOMException(reason);
};
export default function pTimeout(promise, options) {
const {
milliseconds,
fallback,
message,
customTimers = {setTimeout, clearTimeout},
} = options;
let timer;
const wrappedPromise = new Promise((resolve, reject) => {
if (typeof milliseconds !== 'number' || Math.sign(milliseconds) !== 1) {
throw new TypeError(`Expected \`milliseconds\` to be a positive number, got \`${milliseconds}\``);
}
if (options.signal) {
const {signal} = options;
if (signal.aborted) {
reject(getAbortedReason(signal));
}
signal.addEventListener('abort', () => {
reject(getAbortedReason(signal));
});
}
if (milliseconds === Number.POSITIVE_INFINITY) {
promise.then(resolve, reject);
return;
}
// We create the error outside of `setTimeout` to preserve the stack trace.
const timeoutError = new TimeoutError();
timer = customTimers.setTimeout.call(undefined, () => {
if (fallback) {
try {
resolve(fallback());
} catch (error) {
reject(error);
}
return;
}
if (typeof promise.cancel === 'function') {
promise.cancel();
}
if (message === false) {
resolve();
} else if (message instanceof Error) {
reject(message);
} else {
timeoutError.message = message ?? `Promise timed out after ${milliseconds} milliseconds`;
reject(timeoutError);
}
}, milliseconds);
(async () => {
try {
resolve(await promise);
} catch (error) {
reject(error);
}
})();
});
const cancelablePromise = wrappedPromise.finally(() => {
cancelablePromise.clear();
});
cancelablePromise.clear = () => {
customTimers.clearTimeout.call(undefined, timer);
timer = undefined;
};
return cancelablePromise;
}