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go/types, types2: add test case for issue for coverage

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The specific error doesn't occur anymore.
Add a test to prevent regressions.

For #50729.

Change-Id: Ibf6ef6009b3d226b4f345b5a5657939915f19633
Reviewed-on: https://go-review.googlesource.com/c/go/+/412235
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
This commit is contained in:
Robert Griesemer 2022-06-14 19:01:04 -07:00
parent 0cd0c12f57
commit 74bf90c779
2 changed files with 38 additions and 0 deletions
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19
src/cmd/compile/internal/types2/testdata/fixedbugs/issue50729.go vendored Normal file
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// 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
// version 1
var x1 T1[B1]
type T1[_ any] struct{}
type A1 T1[B1]
type B1 = T1[A1]
// version 2
type T2[_ any] struct{}
type A2 T2[B2]
type B2 = T2[A2]
var x2 T2[B2]

19
src/go/types/testdata/fixedbugs/issue50729.go vendored Normal file
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@ -0,0 +1,19 @@
// 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
// version 1
var x1 T1[B1]
type T1[_ any] struct{}
type A1 T1[B1]
type B1 = T1[A1]
// version 2
type T2[_ any] struct{}
type A2 T2[B2]
type B2 = T2[A2]
var x2 T2[B2]