go source for verification 2026-05-22

test/fixedbugs/issue49143.dir/a.go

@@ -0,0 +1,24 @@
+// 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 a
+
+import "sync"
+
+type Loader[K comparable, R any] struct {
+	batch *LoaderBatch[K, R]
+}
+
+func (l *Loader[K, R]) Load() error {
+	l.batch.f()
+	return nil
+}
+
+type LoaderBatch[K comparable, R any] struct {
+	once    *sync.Once
+}
+
+func (b *LoaderBatch[K, R]) f() {
+	b.once.Do(func() {})
+}