Evan Hahn f5c0188b5e std/node: add util.callbackify (#5415) ... This adds [Node's `util.callbackify`][0] to `std/node/util.ts`. I lifted most of this from the [original Node source code][1] (and [its tests][2]). I tried to make minimal modifications to the source. I made a few arbitrary decisions: - I was unable to do the function's types elegantly. I made overloads for functions that have 0 to 5 (inclusive) arguments, excluding the callback. I would love to know a better way to do this. (It seems that the folks at DefinitelyTyped [were also stumped][3], though maybe their solution is deliberate.) - There are a few edge cases that cause custom Node errors to be produced. Instead of re-implementing those errors completely, I created simplified classes. These are mostly correct but are not identical to the real Node errors. - The tests implement a possibly-arcane `TestQueue` class. I originally used a lot of inline promises but found it too repetitive. Closes [#5366][4]. [0]: https://nodejs.org/api/util.html#util_util_callbackify_original [1]: 4780493301/lib/util.js (L183-L226) [2]: 4780493301/test/parallel/test-util-callbackify.js [3]: 7d24857ddb/types/node/util.d.ts (L61-L84) [4]: https://github.com/denoland/deno/issues/5366		2020-05-20 10:29:05 -04:00
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_util_callbackify.ts	std/node: add util.callbackify (#5415)	2020-05-20 10:29:05 -04:00
_util_callbackify_test.ts	std/node: add util.callbackify (#5415)	2020-05-20 10:29:05 -04:00