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sync/atomic: spurious "invalid recursive type" compilation error for "sync/atomic".Pointer #57415

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yuri-kilochek opened this issue Dec 20, 2022 · 2 comments
Closed

sync/atomic: spurious "invalid recursive type" compilation error for "sync/atomic".Pointer #57415

yuri-kilochek opened this issue Dec 20, 2022 · 2 comments
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compiler/runtime Issues related to the Go compiler and/or runtime. FrozenDueToAge

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@yuri-kilochek
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What version of Go are you using (go version)?

$ go version
go version go1.19.4 linux/amd64

Does this issue reproduce with the latest release?

Yes.

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/user/.cache/go-build"
GOENV="/home/user/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/user/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/user/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/lib/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/lib/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="go1.19.4"
GCCGO="gccgo"
GOAMD64="v1"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/home/user/gobug/go.mod"
GOWORK=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build1405439721=/tmp/go-build -gno-record-gcc-switches"

What did you do?

Tried to go build the following:

package bug

import "sync/atomic"

type node struct {
    next atomic.Pointer[node]
}

Not providing go.dev/play link because it's running go1.19.2, where the bug does not occur.

What did you expect to see?

It compiles without errors.

What did you see instead?

go build
# bug
./bug.go:5:6: invalid recursive type node
	./bug.go:5:6: node refers to
	./bug.go:6:16: atomic.Pointer refers to
	./bug.go:5:6: node
@yuri-kilochek yuri-kilochek changed the title cmd/go: spurious "invalid recursive type" compilation error for atomic.Pointer cmd/go: spurious "invalid recursive type" compilation error for "sync/atomic".Pointer Dec 20, 2022
@yuri-kilochek
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yuri-kilochek commented Dec 20, 2022 •
edited

@mateusz834 likely caused by 7025ae0#diff-74356a5476466d442c2023f47d58e830715ba62eacd24b331200899a9cc3909cR45

@yuri-kilochek yuri-kilochek changed the title cmd/go: spurious "invalid recursive type" compilation error for "sync/atomic".Pointer sync/atomic: spurious "invalid recursive type" compilation error for "sync/atomic".Pointer Dec 20, 2022
@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Dec 20, 2022
@seankhliao
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Duplicate of #57124

@seankhliao seankhliao marked this as a duplicate of #57124 Dec 20, 2022
@seankhliao seankhliao closed this as not planned Won't fix, can't repro, duplicate, stale Dec 20, 2022
@golang golang locked and limited conversation to collaborators Dec 20, 2023
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@yuri-kilochek @gopherbot @seankhliao