8000 go/types: 'under' panics on Alias type [1.23 backport] · Issue #68894 · golang/go · GitHub
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go/types: 'under' panics on Alias type [1.23 backport] #68894

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gopherbot opened this issue Aug 15, 2024 · 2 comments
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go/types: 'under' panics on Alias type [1.23 backport] #68894

gopherbot opened this issue Aug 15, 2024 · 2 comments
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CherryPickApproved Used during the release process for point releases
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Go1.23.1

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@gopherbot
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@findleyr requested issue #68877 to be considered for backport to the next 1.23 minor release.

@gopherbot, please create a backport issue for Go 1.23: this is a regression in the type checker when run with GODEBUG=gotypesalias=1, the new default.
@gopherbot gopherbot added the CherryPickCandidate Used during the release process for point releases label Aug 15, 2024
@gopherbot gopherbot mentioned this issue Aug 15, 2024
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@gopherbot gopherbot added this to the Go1.23.1 milestone Aug 15, 2024
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Change https://go.dev/cl/606656 mentions this issue: [release-branch.go1.23] go/types, types2: Named.cleanup must also handle *Alias types

@cherrymui cherrymui added the CherryPickApproved Used during the release process for point releases label Aug 21, 2024
@gopherbot gopherbot removed the CherryPickCandidate Used during the release process for point releases label Aug 21, 2024
gopherbot pushed a commit that referenced this issue Aug 21, 2024
@griesemer @cherrymui
[release-branch.go1.23] go/types, types2: Named.cleanup must also han…
9166d2f 
…dle *Alias types

Named.cleanup is called at the end of type-checking to ensure that
a named type is fully set up; specifically that it's underlying
field is not (still) a Named type. Now it can also be an *Alias
type. Add this case to the respective type switch.

Fixes #68894.

Change-Id: I29bc0024ac9d8b0152a3d97c82dd28d09d5dbd66
Reviewed-on: https://go-review.googlesource.com/c/go/+/605977
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/606656
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Closed by merging CL 606656 (commit 9166d2f) to release-branch.go1.23.

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