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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
commit | 43a123c1ae6613b3efeed291fa552ecd909d3acf (patch) | |
tree | fd92518b7024bc74031f78a1cf9e454b65e73665 /src/internal/types/testdata/fixedbugs/issue47796.go | |
parent | Initial commit. (diff) | |
download | golang-1.20-43a123c1ae6613b3efeed291fa552ecd909d3acf.tar.xz golang-1.20-43a123c1ae6613b3efeed291fa552ecd909d3acf.zip |
Adding upstream version 1.20.14.upstream/1.20.14upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/internal/types/testdata/fixedbugs/issue47796.go')
-rw-r--r-- | src/internal/types/testdata/fixedbugs/issue47796.go | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/internal/types/testdata/fixedbugs/issue47796.go b/src/internal/types/testdata/fixedbugs/issue47796.go new file mode 100644 index 0000000..4c59106 --- /dev/null +++ b/src/internal/types/testdata/fixedbugs/issue47796.go @@ -0,0 +1,33 @@ +// Copyright 2021 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 + +// parameterized types with self-recursive constraints +type ( + T1 /* ERROR invalid recursive type */ [P T1[P]] interface{} + T2 /* ERROR invalid recursive type */ [P, Q T2[P, Q]] interface{} + T3[P T2[P, Q], Q interface{ ~string }] interface{} + + T4a /* ERROR invalid recursive type */ [P T4a[P]] interface{ ~int } + T4b /* ERROR invalid recursive type */ [P T4b[int]] interface{ ~int } + T4c /* ERROR invalid recursive type */ [P T4c[string]] interface{ ~int } + + // mutually recursive constraints + T5 /* ERROR invalid recursive type */ [P T6[P]] interface{ int } + T6[P T5[P]] interface{ int } +) + +// verify that constraints are checked as expected +var ( + _ T1[int] + _ T2[int, string] + _ T3[int, string] +) + +// test case from issue + +type Eq /* ERROR invalid recursive type */ [a Eq[a]] interface { + Equal(that a) bool +} |