gcc/testsuite/go.test/test/fixedbugs/issue5581.go

   1 // errorcheck
   2
   3 // Used to emit a spurious "invalid recursive type" error.
   4 // See golang.org/issue/5581.
   5
   6 // Copyright 2013 The Go Authors.  All rights reserved.
   7 // Use of this source code is governed by a BSD-style
   8 // license that can be found in the LICENSE file.
   9
  10 package main
  11
  12 import "fmt"
  13
  14 func NewBar() *Bar { return nil }
  15
  16 func (x *Foo) Method() (int, error) {
  17         for y := range x.m {
  18                 _ = y.A
  19         }
  20         return 0, nil
  21 }
  22
  23 type Foo struct {
  24         m map[*Bar]int
  25 }
  26
  27 type Bar struct {
  28         A *Foo
  29         B chan Blah // ERROR "undefined.*Blah"
  30 }
  31
  32 func main() {
  33         fmt.Println("Hello, playground")
  34 }