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x/text/cmd/gotext: dependency of x/tools is too old for Go 1.18 #52552

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tux21b opened this issue Apr 25, 2022 · 8 comments
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x/text/cmd/gotext: dependency of x/tools is too old for Go 1.18 #52552

tux21b opened this issue Apr 25, 2022 · 8 comments
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FrozenDueToAge NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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@tux21b
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tux21b commented Apr 25, 2022 •
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With Go 1.18.1, it is not possible to run go run golang.org/x/text/cmd/gotext@latest extract (latest maps to v0.3.7 in this case). The problem seems to be a too old version of x/tools:

❯ go run golang.org/x/text/cmd/gotext@latest extract
panic: interface conversion: types.Type is nil, not *types.Signature

goroutine 651 [running]:
golang.org/x/tools/go/ssa.(*builder).expr0(0x7de520?, 0xc004789400, {0x8d2cf8?, 0xc0015caa20}, {0x0, {0x0, 0x0}, {0x0, 0x0}})
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:679 +0x1f85
golang.org/x/tools/go/ssa.(*builder).expr(0x7dd740?, 0xc004789400, {0x8d2cf8?, 0xc0015caa20?})
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:530 +0x19f
golang.org/x/tools/go/ssa.(*builder).expr0(0x7de520?, 0xc004789400, {0x8d2f98?, 0xc0015c1488}, {0x2, {0x8d20a8, 0xc003a59440}, {0x0, 0x0}})
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:697 +0x1abd
golang.org/x/tools/go/ssa.(*builder).expr(0x7dd740?, 0xc004789400, {0x8d2f98?, 0xc0015c1488?})
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:530 +0x19f
golang.org/x/tools/go/ssa.(*builder).setCallFunc(0x80?, 0xc004789400?, 0xc0015c8d00?, 0xc009b8de40)
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:881 +0x2ec
golang.org/x/tools/go/ssa.(*builder).setCall(0x7de520?, 0xc004789400, 0xc0015c8d00, 0xc009b8de40)
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:962 +0x31
golang.org/x/tools/go/ssa.(*builder).expr0(0x7de520?, 0xc004789400, {0x8d29f8?, 0xc0015c8d00}, {0x7, {0x8d1fb8, 0xc55a60}, {0x0, 0x0}})
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:596 +0x1eae
golang.org/x/tools/go/ssa.(*builder).expr(0xc00d826da8?, 0xc004789400, {0x8d29f8?, 0xc0015c8d00?})
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:530 +0x19f
golang.org/x/tools/go/ssa.(*builder).assign(0xc004789400?, 0xc004789400?, {0x8d3898?, 0xc00443b0b0}, {0x8d29f8?, 0xc0015c8d00?}, 0x0?, 0xc007e910c0)
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:502 +0x3db
golang.org/x/tools/go/ssa.(*builder).assignStmt(0x203002?, 0xc004789400, {0xc0015b59a0, 0x1, 0x20?}, {0xc0015b59c0, 0x1, 0x0?}, 0x1)
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:1050 +0x25d
golang.org/x/tools/go/ssa.(*builder).stmt(0x0?, 0xc004789400, {0x8d2878?, 0xc0015c8d40?})
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:2006 +0x1094
golang.org/x/tools/go/ssa.(*builder).stmtList(0xc007e91470?, 0x425a96?, {0xc0015c8e00?, 0x3, 0xc003a23840?})
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:790 +0x67
golang.org/x/tools/go/ssa.(*builder).stmt(0xc004789400?, 0xc004789400, {0x8d2998?, 0xc0015c39b0?})
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:2102 +0x1331
golang.org/x/tools/go/ssa.(*builder).stmt(0x0?, 0xc004789400, {0x8d2d28?, 0xc0015c8e40?})
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:2116 +0x17ec
golang.org/x/tools/go/ssa.(*builder).stmtList(0x0?, 0x7fb9446b0ee0?, {0xc0015b0400?, 0x24, 0x203001?})
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:790 +0x67
golang.org/x/tools/go/ssa.(*builder).stmt(0xc004789400?, 0xc004789400, {0x8d2998?, 0xc0015c3ec0?})
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:2102 +0x1331
golang.org/x/tools/go/ssa.(*builder).buildFunction(0x7de9a0?, 0xc004789400)
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:2195 +0x465
golang.org/x/tools/go/ssa.(*builder).buildFuncDecl(0x7de9a0?, 0xc008b4cc60, 0xc0015c3ef0)
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:2225 +0x154
golang.org/x/tools/go/ssa.(*Package).build(0xc008b4cc60)
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:2341 +0xd05
sync.(*Once).doSlow(0x626e20?, 0xc003053800?)
        /usr/lib/go/src/sync/once.go:68 +0xc2
sync.(*Once).Do(...)
        /usr/lib/go/src/sync/once.go:59
golang.org/x/tools/go/ssa.(*Package).Build(...)
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:2260
golang.org/x/tools/go/ssa.(*Program).Build.func1(0x25?)
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:2244 +0x4c
created by golang.org/x/tools/go/ssa.(*Program).Build
        /home/christoph/go/pkg/mod/golang.org/x/tools@v0.0.0-20180917221912-90fa682c2a6e/go/ssa/builder.go:2243 +0x19c
exit status 2

This bug happens on every example, even if the code does not depend on generics. One minimal example:

package main

import (
	"fmt"

	"golang.org/x/text/language"
	"golang.org/x/text/message"
)

func main() {
	p := message.NewPrinter(language.English)
	p.Printf("Hello World")
}

Explicitly depending on a newer version of x/tools in the go.mod file solves the problem for programs that do not depend on generics.
@gopherbot gopherbot added this to the Unreleased milestone Apr 25, 2022
@tux21b tux21b changed the title x/text/gotext: dependency of x/tools is too old for Go 1.18 x/text/cmd/gotext: dependency of x/tools is too old for Go 1.18 Apr 25, 2022
@tux21b tux21b mentioned this issue Apr 25, 2022
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@tux21b
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tux21b commented Apr 25, 2022

@rsc this is gotext issue 1/2

@tux21b tux21b mentioned this issue Apr 25, 2022
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@adonovan
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adonovan commented Apr 25, 2022 •
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The panic indicates that the go/ssa package doesn't know how what to do with type parameters. There has been some very recent work by @timothy-king in that package to add support. I don't know what state it's in, but I notice that updating x/text's version of x/tools to the latest (untagged) commit does avoid the crash on these examples.

$ git diff go.mod
 module golang.org/x/text

-require golang.org/x/tools v0.1.7
+require golang.org/x/tools v0.1.11-0.20220425172941-559469ae1672
...

@tux21b
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tux21b commented Apr 25, 2022 •
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@adonovan for the example in this issue, updating to x/tools v0.1.10 is enough in my case. The newer version might help in the case with type parameters, but I have created a separate issue for that. See #52553

@gopherbot
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Change https://go.dev/cl/402254 mentions this issue: go.mod: update to golang.org/x/text v0.1.10

@cagedmantis cagedmantis added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Apr 28, 2022
@cagedmantis
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Also see #50558

@cagedmantis
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/cc @mpvl

@yarcat
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yarcat commented Aug 9, 2022

tools@0.1.11 dependency doesn't seem enough. I still see

panic: unexpected container type in IndexExpr:  func[Topic any]() my/package/pubsub.Publisher[Topic]`

It is seems to be fixed with tools@0.1.12 though.

Unfortunately I wasn't able to reproduce this with a simple example yet.

@yarcat
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yarcat commented Aug 9, 2022

tools@0.1.12 contains a fix for #52834 which fixes exactly the issue mentioned in my previous comment

xhit pushed a commit to xhit/text that referenced this issue Oct 10, 2022
@ianlancetaylor @xhit
go.mod: update to golang.org/x/text v0.1.10
40f0200 
go get -u golang.org/x/tools
go mod tidy

For golang/go#50558
Fixes golang/go#52552

Change-Id: I233aa90922fc23800563fd05beb4be6f7e87cf5b
Reviewed-on: https://go-review.googlesource.com/c/text/+/402254
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
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