File: reflectmethod3.go

package info (click to toggle)
golang-1.8 1.8.1-1%2Bdeb9u1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 76,544 kB
  • sloc: asm: 55,864; ansic: 7,960; sh: 1,576; perl: 1,139; xml: 623; python: 286; javascript: 231; makefile: 109; cpp: 22; f90: 8; awk: 7
file content (35 lines) | stat: -rw-r--r-- 651 bytes parent folder | download | duplicates (37)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
// run

// Copyright 2016 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.

// The linker can prune methods that are not directly called or
// assigned to interfaces, but only if reflect.Type.Method is
// never used. Test it here.

package main

import "reflect"

var called = false

type M int

func (m M) UniqueMethodName() {
	called = true
}

var v M

type MyType interface {
	Method(int) reflect.Method
}

func main() {
	var t MyType = reflect.TypeOf(v)
	t.Method(0).Func.Interface().(func(M))(v)
	if !called {
		panic("UniqueMethodName not called")
	}
}