src, os, dgram, tty: migrate to internal errors by jasnell · Pull Request #16567 · nodejs/node

jasnell · 2017-10-28T06:32:37Z

Adds mechanism for transitioning internal UV and ErrnoException to internal/errors
Migrates os, tty, and dgram errors to internal/errors

Checklist

make -j4 test (UNIX), or vcbuild test (Windows) passes
tests and/or benchmarks are included
documentation is changed or added
commit message follows commit guidelines

Affected core subsystem(s)

src, os, dgram, tty

jasnell · 2017-10-28T06:33:16Z

ping @nodejs/tsc

jasnell · 2017-10-28T06:42:31Z

That wouldn't catch cases like new SystemError(null)

targos · 2017-10-28T06:50:25Z

Can't that case be changed to pass undefined?

targos · 2017-10-28T07:03:49Z

context is guaranteed to be truthy here

maclover7 · 2017-10-28T13:46:06Z

This is really great! Should any docs be added on the C++ side about the new way to throw errors... maybe in the style guide?

jasnell · 2017-10-29T16:55:02Z

@targos

Can't that case be changed to pass undefined

potentially. Let's save that particular change for later tho. Once I get through converting all of the native level code to use this I will verify that we can safely make that assumption.

@maclover7

Should any docs be added on the C++ side about the new way to throw errors

Yes, I'm planning to write up a more detailed guide on this once I'm through the initial conversion.

joyeecheung · 2017-10-30T08:37:29Z

Come to think of it, I think a more popular pattern in the userland is using the err.data property (correct me if I am wrong), I remember seeing some logging services/tools collect that automatically in addition to err.code...I remember there is another PR for crypto that use info. Is there a reason that we pick info instead of data?

A quick search in our own code base shows that eslint is using error.data: https://github.com/nodejs/node/blob/master/tools/eslint/lib/config/config-validator.js#L92 and https://github.com/nodejs/node/blob/master/tools/eslint/lib/config/config-validator.js#L179

I've seen both: https://www.npmjs.com/package/verror uses *.info

On a side note: would be easier to read if we have a syntax for documenting optional properties..

I agree, definitely something worth working on

joyeecheung

Changes LGTM, left a few suggestions.

joyeecheung · 2017-10-30T16:04:50Z

Is this for avoiding changing the error type? Maybe a comment because this looks a bit odd at first?

Yes, I really dislike how this was done, but I want to save it for a different PR to change it.

joyeecheung · 2017-10-30T16:13:31Z

Maybe name this function and do a captureStackTrace()?

joyeecheung · 2017-10-30T16:27:00Z

For clarity, maybe use args[args.Length() - 1]? Also we should probably CHECK_EQ(args.Length(), n) or CHECK_GE(args.Length(), n) (not sure if these are used in userland)

joyeecheung · 2017-10-30T16:42:09Z

This one is not legacy, right? Should we move the comment below this?

Preparing for the migration of existing UVException and ErrnoExceptions from the native layer, add new `errors.SystemError` to internal/errors and new `env->CollectExceptionInfo()` / `env->CollectUVExceptionInfo()` methods.

jasnell · 2017-11-02T05:18:35Z

@targos @joyeecheung ... updated, PTAL

mhdawson

LGTM as long as CI is green.

mhdawson · 2017-11-02T14:10:06Z

CI run: https://ci.nodejs.org/job/node-test-pull-request/11150/

jasnell · 2017-11-02T18:27:05Z

CI is good. failures are unrelated and known flakies

jasnell · 2017-11-02T18:30:12Z

(getting this landed)

Preparing for the migration of existing UVException and ErrnoExceptions from the native layer, add new `errors.SystemError` to internal/errors and new `env->CollectExceptionInfo()` / `env->CollectUVExceptionInfo()` methods. PR-URL: #16567 Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

PR-URL: #16567 Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

jasnell · 2017-11-02T19:01:42Z

Landed in c3dc0e0, 056b858, 3d9d849, and 9ad994b

nodejs-github-bot added the lib / src Issues and PRs related to general changes in the lib or src directory. label Oct 28, 2017

targos reviewed Oct 28, 2017

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jasnell mentioned this pull request Oct 30, 2017

crypto, errors: Add CryptoError to internal/errors, update crypto.setEngine #16529

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4 tasks

jasnell force-pushed the migrate-os-internal-errors branch from 6350e83 to 4a8cbd3 Compare October 30, 2017 01:06

joyeecheung reviewed Oct 30, 2017

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joyeecheung approved these changes Oct 30, 2017

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jasnell added 4 commits November 1, 2017 21:55

src: add CollectExceptionInfo & errors.SystemError

7462524

Preparing for the migration of existing UVException and ErrnoExceptions from the native layer, add new `errors.SystemError` to internal/errors and new `env->CollectExceptionInfo()` / `env->CollectUVExceptionInfo()` methods.

os: migrate node_os.cc to internal/errors

5698a33

tty: convert to internal/errors using SystemError

1863099

dgram: migrate bufferSize to use internal/errors

ee9e7a6

jasnell force-pushed the migrate-os-internal-errors branch from 4a8cbd3 to ee9e7a6 Compare November 2, 2017 05:17

joyeecheung approved these changes Nov 2, 2017

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mhdawson approved these changes Nov 2, 2017

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jasnell added a commit that referenced this pull request Nov 2, 2017

os: migrate node_os.cc to internal/errors

056b858

PR-URL: #16567 Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

jasnell added a commit that referenced this pull request Nov 2, 2017

tty: convert to internal/errors using SystemError

3d9d849

PR-URL: #16567 Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

jasnell added a commit that referenced this pull request Nov 2, 2017

dgram: migrate bufferSize to use internal/errors

9ad994b

PR-URL: #16567 Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

jasnell closed this Nov 2, 2017

MylesBorins mentioned this pull request Dec 11, 2017

src: explicitly register built-in modules #16565

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jasnell commented Oct 28, 2017

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joyeecheung Oct 30, 2017 •

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