gcc/testsuite/go.test/test/method2.go

   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
  10 package main
  11
  12 type T struct {
  13         a int
  14 }
  15 type P *T
  16 type P1 *T
  17
  18 func (p P) val() int   { return 1 } // ERROR "receiver.* pointer|invalid pointer or interface receiver"
  19 func (p *P1) val() int { return 1 } // ERROR "receiver.* pointer|invalid pointer or interface receiver"
  20
  21 type I interface{}
  22 type I1 interface{}
  23
  24 func (p I) val() int   { return 1 } // ERROR "receiver.*interface|invalid pointer or interface receiver"
  25 func (p *I1) val() int { return 1 } // ERROR "receiver.*interface|invalid pointer or interface receiver"
  26
  27 type Val interface {
  28         val() int
  29 }
  30
  31 var _ = (*Val).val // ERROR "method"
  32
  33 var v Val
  34 var pv = &v
  35
  36 var _ = pv.val() // ERROR "method"
  37 var _ = pv.val   // ERROR "method"