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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 /test/typeparam/issue50642.go | |
parent | Initial commit. (diff) | |
download | golang-1.20-upstream.tar.xz golang-1.20-upstream.zip |
Adding upstream version 1.20.14.upstream/1.20.14upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | test/typeparam/issue50642.go | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/test/typeparam/issue50642.go b/test/typeparam/issue50642.go new file mode 100644 index 0000000..d2d4a66 --- /dev/null +++ b/test/typeparam/issue50642.go @@ -0,0 +1,63 @@ +// run + +// 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 main + +import "fmt" + +type Temp[T any] struct { +} + +var temp, temp1 any +var ch any + +func (it Temp[T]) HasNext() bool { + var ok bool + temp1 = <-ch.(chan T) + // test conversion of T to interface{} during an OAS2RECV + temp, ok = <-ch.(chan T) + return ok +} + +type MyInt int + +func (i MyInt) String() string { + return "a" +} + +type Stringer interface { + String() string +} + +type Temp2[T Stringer] struct { +} + +var temp2 Stringer + +func (it Temp2[T]) HasNext() string { + var x map[int]T + + var ok bool + // test conversion of T to Stringer during an OAS2MAPR + temp2, ok = x[43] + _ = ok + return temp2.String() +} + +func main() { + ch1 := make(chan int, 2) + ch1 <- 5 + ch1 <- 6 + ch = ch1 + iter := Temp[int]{} + iter.HasNext() + + iter2 := Temp2[MyInt]{} + if got, want := iter2.HasNext(), "a"; got != want { + panic(fmt.Sprintf("got %v, want %v", got, want)) + } + +} |