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go/test/typeparam/issue51521.go
Matthew Dempsky d1820f748f test: add test case for #51521
The test case is already working with unified IR, so add it to make
sure we don't regress while finishing unified IR's support for
dictionaries.

Updates #51521.

Change-Id: Ib7c8bf9612d30cd552e8e631fd0d487dcb177f14
Reviewed-on: https://go-review.googlesource.com/c/go/+/390356
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
2022-03-07 14:07:18 +00:00

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)
}