diff options
author | Robert Findley <rfindley@google.com> | 2022-03-21 16:08:38 -0400 |
---|---|---|
committer | Cherry Mui <cherryyz@google.com> | 2022-04-04 19:57:18 +0000 |
commit | 69bc821a010e60a40d6575e793e14b3e616b005b (patch) | |
tree | 9ffce9895f50a9a2bb74d4b8fa734512b6f65f07 | |
parent | c258e9d07dce0ef156d5a9c930bc15e3a0276599 (diff) | |
download | go-69bc821a010e60a40d6575e793e14b3e616b005b.tar.gz go-69bc821a010e60a40d6575e793e14b3e616b005b.zip |
[release-branch.go1.18] cmd/compile/internal/importer: key tparams by Package instead of pkgname
The importer type param index used package name as type parameter key,
causing type parameters to be reused/overwritten if two packages in the
import graph had the same combination of (package name, declaration
name, type parameter name).
Fix this by instead using the *Package in the key.
Note: -G=3 was added to typeparam/issue51836.go, as it is necessary for
1.18 but not for tip.
For #51836
Fixes #51847
Change-Id: I881ceaf3cf7c1ab4e0835962350feb552e79b233
Reviewed-on: https://go-review.googlesource.com/c/go/+/394219
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
(cherry picked from commit fd1b5904ae7cc76eefd94d315f92265da5b81b14)
Reviewed-on: https://go-review.googlesource.com/c/go/+/394854
-rw-r--r-- | src/cmd/compile/internal/importer/iimport.go | 6 | ||||
-rw-r--r-- | src/go/internal/gcimporter/iimport.go | 6 | ||||
-rw-r--r-- | test/typeparam/issue51836.dir/a.go | 8 | ||||
-rw-r--r-- | test/typeparam/issue51836.dir/aa.go | 13 | ||||
-rw-r--r-- | test/typeparam/issue51836.dir/p.go | 11 | ||||
-rw-r--r-- | test/typeparam/issue51836.go | 7 |
6 files changed, 45 insertions, 6 deletions
diff --git a/src/cmd/compile/internal/importer/iimport.go b/src/cmd/compile/internal/importer/iimport.go index bed4fbb016..576036bdce 100644 --- a/src/cmd/compile/internal/importer/iimport.go +++ b/src/cmd/compile/internal/importer/iimport.go @@ -53,7 +53,7 @@ const ( ) type ident struct { - pkg string + pkg *types2.Package name string } @@ -402,7 +402,7 @@ func (r *importReader) obj(name string) { t := types2.NewTypeParam(tn, nil) // To handle recursive references to the typeparam within its // bound, save the partial type in tparamIndex before reading the bounds. - id := ident{r.currPkg.Name(), name} + id := ident{r.currPkg, name} r.p.tparamIndex[id] = t var implicit bool @@ -687,7 +687,7 @@ func (r *importReader) doType(base *types2.Named) types2.Type { errorf("unexpected type param type") } pkg, name := r.qualifiedIdent() - id := ident{pkg.Name(), name} + id := ident{pkg, name} if t, ok := r.p.tparamIndex[id]; ok { // We're already in the process of importing this typeparam. return t diff --git a/src/go/internal/gcimporter/iimport.go b/src/go/internal/gcimporter/iimport.go index bff1c09cc9..f9eaa0b10c 100644 --- a/src/go/internal/gcimporter/iimport.go +++ b/src/go/internal/gcimporter/iimport.go @@ -53,7 +53,7 @@ const ( ) type ident struct { - pkg string + pkg *types.Package name string } @@ -393,7 +393,7 @@ func (r *importReader) obj(name string) { t := types.NewTypeParam(tn, nil) // To handle recursive references to the typeparam within its // bound, save the partial type in tparamIndex before reading the bounds. - id := ident{r.currPkg.Name(), name} + id := ident{r.currPkg, name} r.p.tparamIndex[id] = t var implicit bool @@ -676,7 +676,7 @@ func (r *importReader) doType(base *types.Named) types.Type { errorf("unexpected type param type") } pkg, name := r.qualifiedIdent() - id := ident{pkg.Name(), name} + id := ident{pkg, name} if t, ok := r.p.tparamIndex[id]; ok { // We're already in the process of importing this typeparam. return t diff --git a/test/typeparam/issue51836.dir/a.go b/test/typeparam/issue51836.dir/a.go new file mode 100644 index 0000000000..e9223c9aa8 --- /dev/null +++ b/test/typeparam/issue51836.dir/a.go @@ -0,0 +1,8 @@ +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package a + +type T[K any] struct { +} diff --git a/test/typeparam/issue51836.dir/aa.go b/test/typeparam/issue51836.dir/aa.go new file mode 100644 index 0000000000..d774be282e --- /dev/null +++ b/test/typeparam/issue51836.dir/aa.go @@ -0,0 +1,13 @@ +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package a + +import ( + "./a" +) + +type T[K any] struct { + t a.T[K] +} diff --git a/test/typeparam/issue51836.dir/p.go b/test/typeparam/issue51836.dir/p.go new file mode 100644 index 0000000000..98197ae0fd --- /dev/null +++ b/test/typeparam/issue51836.dir/p.go @@ -0,0 +1,11 @@ +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package p + +import ( + a "./aa" +) + +var Foo a.T[int] diff --git a/test/typeparam/issue51836.go b/test/typeparam/issue51836.go new file mode 100644 index 0000000000..bf9e4212d0 --- /dev/null +++ b/test/typeparam/issue51836.go @@ -0,0 +1,7 @@ +// compiledir -s -G=3 + +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package ignored |