1 files changed, 45 insertions, 0 deletions
diff --git a/test/fixedbugs/issue5231.go b/test/fixedbugs/issue5231.go
new file mode 100644
index 0000000..6bc8826
--- /dev/null
+++ b/test/fixedbugs/issue5231.go
@@ -0,0 +1,45 @@
+// compile
+
+// Copyright 2013 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.
+
+// Issue 5231: method values lose their variadic property.
+
+package p
+
+type T int
+
+func (t T) NotVariadic(s []int) int {
+	return int(t) + s[0]
+}
+
+func (t T) Variadic(s ...int) int {
+	return int(t) + s[0]
+}
+
+type I interface {
+	NotVariadic(s []int) int
+	Variadic(s ...int) int
+}
+
+func F() {
+	var t T
+	var p *T = &t
+	var i I = p
+
+	nv := t.NotVariadic
+	nv = p.NotVariadic
+	nv = i.NotVariadic
+	var s int = nv([]int{1, 2, 3})
+
+	v := t.Variadic
+	v = p.Variadic
+	v = i.Variadic
+	s = v(1, 2, 3)
+
+	var f1 func([]int) int = nv
+	var f2 func(...int) int = v
+
+	_, _, _ = f1, f2, s
+}