pkg/sync/aliases.go: add go/src/sync/oncefunc.go aliases

pkg/sync/aliases.go

@@ -34,3 +34,18 @@ type (
 func NewCond(l Locker) *Cond {
 	return sync.NewCond(l)
 }
+
+// OnceFunc is a wrapper around sync.OnceFunc.
+func OnceFunc(f func()) func() {
+	return sync.OnceFunc(f)
+}
+
+// OnceValue is a wrapper around sync.OnceValue.
+func OnceValue[T any](f func() T) func() T {
+	return sync.OnceValue(f)
+}
+
+// OnceValues is a wrapper around sync.OnceValues.
+func OnceValues[T1, T2 any](f func() (T1, T2)) func() (T1, T2) {
+	return sync.OnceValues(f)
+}