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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/genembed2.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 'test/typeparam/genembed2.go')
-rw-r--r-- | test/typeparam/genembed2.go | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/test/typeparam/genembed2.go b/test/typeparam/genembed2.go new file mode 100644 index 0000000..f75731f --- /dev/null +++ b/test/typeparam/genembed2.go @@ -0,0 +1,46 @@ +// 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. + +// Test for declaration and use of a parameterized embedded field. + +package main + +import ( + "fmt" + "sync" +) + +type MyStruct[T any] struct { + val T +} + +type Lockable[T any] struct { + MyStruct[T] + mu sync.Mutex +} + +// Get returns the value stored in a Lockable. +func (l *Lockable[T]) Get() T { + l.mu.Lock() + defer l.mu.Unlock() + return l.MyStruct.val +} + +// Set sets the value in a Lockable. +func (l *Lockable[T]) Set(v T) { + l.mu.Lock() + defer l.mu.Unlock() + l.MyStruct = MyStruct[T]{v} +} + +func main() { + var li Lockable[int] + + li.Set(5) + if got, want := li.Get(), 5; got != want { + panic(fmt.Sprintf("got %d, want %d", got, want)) + } +} |