1// run
2
3// Copyright 2016 The Go Authors. All rights reserved.
4// Use of this source code is governed by a BSD-style
5// license that can be found in the LICENSE file.
6
7// The linker can prune methods that are not directly called or
8// assigned to interfaces, but only if reflect.Type.MethodByName is
9// never used. Test it here.
10
11package main
12
13import reflect1 "reflect"
14
15var called = false
16
17type M int
18
19func (m M) UniqueMethodName() {
20	called = true
21}
22
23var v M
24
25type MyType interface {
26	MethodByName(string) (reflect1.Method, bool)
27}
28
29func main() {
30	var t MyType = reflect1.TypeOf(v)
31	m, _ := t.MethodByName("UniqueMethodName")
32	m.Func.Interface().(func(M))(v)
33	if !called {
34		panic("UniqueMethodName not called")
35	}
36}
37