mirror of
https://github.com/golang/go
synced 2024-11-12 08:10:21 -07:00
39 lines
822 B
Go
39 lines
822 B
Go
|
// errorcheck
|
||
|
|
|
||
|
|
// Copyright 2015 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.
|
||
|
|
|
||
|
|
// Verify that comparisons of slice/map/func values against converted nil
|
||
|
|
// values are properly rejected.
|
||
|
|
|
||
|
|
package p
|
||
|
|
|
||
|
|
func bug() {
|
||
|
|
type S []byte
|
||
|
|
type M map[int]int
|
||
|
|
type F func()
|
||
|
|
|
||
|
|
var s S
|
||
|
|
var m M
|
||
|
|
var f F
|
||
|
|
|
||
|
|
_ = s == S(nil) // ERROR "compare.*to nil"
|
||
|
|
_ = S(nil) == s // ERROR "compare.*to nil"
|
||
|
|
switch s {
|
||
|
|
case S(nil): // ERROR "compare.*to nil"
|
||
|
|
}
|
||
|
|
|
||
|
|
_ = m == M(nil) // ERROR "compare.*to nil"
|
||
|
|
_ = M(nil) == m // ERROR "compare.*to nil"
|
||
|
|
switch m {
|
||
|
|
case M(nil): // ERROR "compare.*to nil"
|
||
|
|
}
|
||
|
|
|
||
|
|
_ = f == F(nil) // ERROR "compare.*to nil"
|
||
|
|
_ = F(nil) == f // ERROR "compare.*to nil"
|
||
|
|
switch f {
|
||
|
|
case F(nil): // ERROR "compare.*to nil"
|
||
|
|
}
|
||
|
|
}
|