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[v8.x backport] errors: make code property mutable #16078

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@Trott Trott commented Oct 8, 2017

Userland code can break if it depends on a mutable code property for
errors. Allow users to change the code property but do not propagate
changes to the error name.

Additionally, make message and name consistent with Error object
(non-enumerable). Test that console.log() and .toString() calls on
internal Error objects with mutated properties have analogous results
with the standard ECMAScript Error objects.

Fixes: #15658

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • commit message follows commit guidelines
Affected core subsystem(s)

errors

@nodejs-github-bot nodejs-github-bot added errors Issues and PRs related to JavaScript errors originated in Node.js core. v8.x labels Oct 8, 2017
@Trott Trott mentioned this pull request Oct 8, 2017
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LGTM

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@jasnell jasnell left a comment

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but definitely needs a rebase following 8.7.0

Trott and others added 2 commits October 12, 2017 06:37
Userland code can break if it depends on a mutable `code` property for
errors. Allow users to change the `code` property but do not propagate
changes to the error `name`.

Additionally, make `message` and `name` consistent with `Error` object
(non-enumerable). Test that `console.log()` and `.toString()` calls on
internal `Error` objects with mutated properties have analogous results
with the standard ECMAScript `Error` objects.

PR-URL: nodejs#15694
Fixes: nodejs#15658
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
For internal errors, make `code` and `name` settable while keeping them
non-own properties by default.

PR-URL: nodejs#15694
Fixes: nodejs#15658
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
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Trott commented Oct 12, 2017

Rebased.

@Trott Trott changed the title [v8x backport] errors: make code property mutable [v8.x backport] errors: make code property mutable Oct 20, 2017
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evanlucas commented Oct 23, 2017

Landed in 0bd2fd5 and 939a580. Thanks!

@evanlucas evanlucas closed this Oct 23, 2017
evanlucas pushed a commit that referenced this pull request Oct 23, 2017
Userland code can break if it depends on a mutable `code` property for
errors. Allow users to change the `code` property but do not propagate
changes to the error `name`.

Additionally, make `message` and `name` consistent with `Error` object
(non-enumerable). Test that `console.log()` and `.toString()` calls on
internal `Error` objects with mutated properties have analogous results
with the standard ECMAScript `Error` objects.

Backport-PR-URL: #16078
PR-URL: #15694
Fixes: #15658
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
evanlucas pushed a commit that referenced this pull request Oct 23, 2017
For internal errors, make `code` and `name` settable while keeping them
non-own properties by default.

Backport-PR-URL: #16078
PR-URL: #15694
Fixes: #15658
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
@Trott Trott deleted the backport-15694 branch January 13, 2022 22:46
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6 participants