mirror of
https://github.com/golang/go
synced 2024-11-19 07:54:43 -07:00
31 lines
546 B
Go
31 lines
546 B
Go
|
// run
|
||
|
|
|
||
|
|
// Copyright 2022 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
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"strings"
|
||
|
|
)
|
||
|
|
|
||
|
|
type I interface{ M() }
|
||
|
|
|
||
|
|
func F[P I](p P) { defer catch(); p.M() }
|
||
|
|
func G[T any]() { defer catch(); interface{ M() T }.M(nil) }
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
F[I](nil)
|
||
|
|
G[int]()
|
||
|
|
}
|
||
|
|
|
||
|
|
func catch() {
|
||
|
|
err := recover()
|
||
|
|
if err, ok := err.(error); ok && strings.Contains(err.Error(), "nil pointer dereference") {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
fmt.Println("FAIL", err)
|
||
|
|
}
|