mirror of
https://github.com/golang/go
synced 2024-11-23 15:40:06 -07:00
25 lines
664 B
Go
25 lines
664 B
Go
|
// errorcheck
|
||
|
|
|
||
|
|
// Copyright 2018 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.
|
||
|
|
|
||
|
|
package main
|
||
|
|
|
||
|
|
type Stringer interface {
|
||
|
|
String() string
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
var e interface{}
|
||
|
|
switch e := e.(type) {
|
||
|
|
case G: // ERROR "undefined: G"
|
||
|
|
e.M() // ok: this error should be ignored because the case failed its typecheck
|
||
|
|
case E: // ERROR "undefined: E"
|
||
|
|
e.D() // ok: this error should be ignored because the case failed its typecheck
|
||
|
|
case Stringer:
|
||
|
|
// ok: this error should not be ignored to prove that passing legs aren't left out
|
||
|
|
_ = e.(T) // ERROR "undefined: T"
|
||
|
|
}
|
||
|
|
}
|