go issue51521 源码
golang issue51521 代码
文件路径：/test/typeparam/issue51521.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)
}
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