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Set Error.prototype.cause type to unknown (#70) #49639

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merged 1 commit into from
Jul 5, 2022

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iamharbie
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@iamharbie iamharbie commented Jun 22, 2022

Describe your changes
This PR fixes #45167 which changes the type of Error.prototype.cause from Error to Unknown

Testing performed
I added new tests to ensure that unknown type is recognised

Additional context
Could also potentially resolve #48098. @DanielRosenwasser's suggested being more restrictive with the type of the cause property of the options param. I am open to discussions on this.

Fixes #45167

Credits to Bloomberg colleagues who helped with reviews @mkubilayk @dragomirtitian

@typescript-bot typescript-bot added the For Uncommitted Bug PR for untriaged, rejected, closed or missing bug label Jun 22, 2022
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This PR doesn't have any linked issues. Please open an issue that references this PR. From there we can discuss and prioritise.

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ghost commented Jun 22, 2022

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Thank you for your submission, we really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.

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@typescript-bot typescript-bot added For Backlog Bug PRs that fix a backlog bug and removed For Uncommitted Bug PR for untriaged, rejected, closed or missing bug labels Jun 22, 2022
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This is a good change. Would fix voxpelli/pony-cause#35

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@iamharbie @mkubilayk @dragomirtitian What's needed to get the CLA signed? My guess is that Bloomberg already has a signed CLA, just that @iamharbie hasn't been added to it and thus that the bot doesn't pick it up?

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Oh, apparently the Bloomberg CLA thing is being worked on by @RyanCavanaugh: #49675 (comment)

@iamharbie iamharbie closed this Jul 5, 2022
@iamharbie iamharbie reopened this Jul 5, 2022
@RyanCavanaugh RyanCavanaugh merged commit 1f0d0f7 into microsoft:main Jul 5, 2022
@DanielRosenwasser DanielRosenwasser added the Breaking Change Would introduce errors in existing code label Jul 11, 2022
typescript-bot pushed a commit to DefinitelyTyped/DefinitelyTyped that referenced this pull request Jul 20, 2022
…error` on TS `4.8` by @voxpelli

This commit fixes the following error, which appears when running TS `^4.8.0-dev.20220707` with eg. ` npx tsc --lib es2020,es2022.error,es2021.promise` or ` npx tsc --lib esnext`

> error TS2425: Class 'Error' defines instance member property 'cause', but extended class 'VError' defines it as instance member function.

Discovered in voxpelli/pony-cause#41 when looking to extend the tests for voxpelli/pony-cause#35 to detect whether the nightly of `4.8.0` now correctly fixes that, following the merge of microsoft/TypeScript#49639
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Error.prototype.cause has inaccurate value type TC39 proposal - Error.cause property
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