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>
This commit is contained in:
Matthew Dempsky 2022-03-07 05:43:40 -08:00
parent ac3ba97907
commit d1820f748f
2 changed files with 32 additions and 1 deletions

View file

@ -1999,7 +1999,8 @@ var types2Failures32Bit = setOf(
)
var g3Failures = setOf(
"typeparam/nested.go", // -G=3 doesn't support function-local types with generics
"typeparam/nested.go", // -G=3 doesn't support function-local types with generics
"typeparam/issue51521.go", // -G=3 produces bad panic message and link error
)
// In all of these cases, -G=0 reports reasonable errors, but either -G=0 or types2

View file

@ -0,0 +1,30 @@
// 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)
}