1// errorcheck
2
3// Copyright 2009 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// Verify that pointers and interface types cannot be method receivers.
8// Does not compile.
9
10package main
11
12type T struct {
13	a int
14}
15type P *T
16type P1 *T
17
18func (p P) val() int   { return 1 } // ERROR "receiver.* pointer|invalid pointer or interface receiver|invalid receiver"
19func (p *P1) val() int { return 1 } // ERROR "receiver.* pointer|invalid pointer or interface receiver|invalid receiver"
20
21type I interface{}
22type I1 interface{}
23
24func (p I) val() int   { return 1 } // ERROR "receiver.*interface|invalid pointer or interface receiver"
25func (p *I1) val() int { return 1 } // ERROR "receiver.*interface|invalid pointer or interface receiver"
26
27type Val interface {
28	val() int
29}
30
31var _ = (*Val).val // ERROR "method|type \*Val is pointer to interface, not interface"
32
33var v Val
34var pv = &v
35
36var _ = pv.val() // ERROR "undefined|pointer to interface"
37var _ = pv.val   // ERROR "undefined|pointer to interface"
38
39func (t *T) g() int { return t.a }
40
41var _ = (T).g() // ERROR "needs pointer receiver|undefined|method requires pointer|cannot call pointer method"
42