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02c65fad45
Fixes https://github.com/denoland/deno/issues/22180 Matches the Node.js implementation more closely. Removed types, they do not help just make it harder to debug with stack traces.
91 lines
3.4 KiB
JavaScript
91 lines
3.4 KiB
JavaScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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//
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// Adapted from Node.js. Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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// These are simplified versions of the "real" errors in Node.
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import { primordials } from "ext:core/mod.js";
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const {
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ArrayPrototypePop,
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Error,
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FunctionPrototypeBind,
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ReflectApply,
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ObjectDefineProperties,
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ObjectGetOwnPropertyDescriptors,
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ObjectSetPrototypeOf,
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ObjectValues,
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PromisePrototypeThen,
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} = primordials;
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import { nextTick } from "ext:deno_node/_next_tick.ts";
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import { validateFunction } from "ext:deno_node/internal/validators.mjs";
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class NodeFalsyValueRejectionError extends Error {
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code = "ERR_FALSY_VALUE_REJECTION";
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constructor(reason) {
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super("Promise was rejected with falsy value");
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this.reason = reason;
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}
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}
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function callbackify(original) {
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validateFunction(original, "original");
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// We DO NOT return the promise as it gives the user a false sense that
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// the promise is actually somehow related to the callback's execution
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// and that the callback throwing will reject the promise.
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function callbackified(...args) {
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const maybeCb = ArrayPrototypePop(args);
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validateFunction(maybeCb, "last argument");
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const cb = FunctionPrototypeBind(maybeCb, this);
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// In true node style we process the callback on `nextTick` with all the
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// implications (stack, `uncaughtException`, `async_hooks`)
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PromisePrototypeThen(
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ReflectApply(original, this, args),
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(ret) => nextTick(cb, null, ret),
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(rej) => {
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rej = rej || new NodeFalsyValueRejectionError(rej);
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return nextTick(cb, rej);
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},
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);
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}
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const descriptors = ObjectGetOwnPropertyDescriptors(original);
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// It is possible to manipulate a functions `length` or `name` property. This
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// guards against the manipulation.
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if (typeof descriptors.length.value === "number") {
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descriptors.length.value++;
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}
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if (typeof descriptors.name.value === "string") {
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descriptors.name.value += "Callbackified";
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}
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const propertiesValues = ObjectValues(descriptors);
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for (let i = 0; i < propertiesValues.length; i++) {
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// We want to use null-prototype objects to not rely on globally mutable
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// %Object.prototype%.
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ObjectSetPrototypeOf(propertiesValues[i], null);
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}
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ObjectDefineProperties(callbackified, descriptors);
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return callbackified;
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}
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export { callbackify };
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