test: new test for issue 30862

New test case, inspired by gccgo issue 30862.

Updates #30862.

Change-Id: I5e494b877e4fd142b8facb527471fe1fdef39c61
Reviewed-on: https://go-review.googlesource.com/c/go/+/167744
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>

diff --git a/test/fixedbugs/issue30862.dir/a.go b/test/fixedbugs/issue30862.dir/a.go
new file mode 100644 (file)
index 0000000..c23f4de
--- /dev/null
+++ b/test/fixedbugs/issue30862.dir/a.go
@@ -0,0 +1,15 @@
+// Copyright 2019 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 a
+
+var pl int
+
+type NoitfStruct struct {
+       F int
+       G int
+}
+
+//go:nointerface
+func (t *NoitfStruct) NoInterfaceMethod() {}

diff --git a/test/fixedbugs/issue30862.dir/b.go b/test/fixedbugs/issue30862.dir/b.go
new file mode 100644 (file)
index 0000000..3e501bb
--- /dev/null
+++ b/test/fixedbugs/issue30862.dir/b.go
@@ -0,0 +1,29 @@
+// Copyright 2019 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 b
+
+import "./a"
+
+type EmbedImported struct {
+       a.NoitfStruct
+}
+
+func Test() []string {
+       bad := []string{}
+       x := interface{}(new(a.NoitfStruct))
+       if _, ok := x.(interface {
+               NoInterfaceMethod()
+       }); ok {
+               bad = append(bad, "fail 1")
+       }
+
+       x = interface{}(new(EmbedImported))
+       if _, ok := x.(interface {
+               NoInterfaceMethod()
+       }); ok {
+               bad = append(bad, "fail 2")
+       }
+       return bad
+}

diff --git a/test/fixedbugs/issue30862.dir/main.go b/test/fixedbugs/issue30862.dir/main.go
new file mode 100644 (file)
index 0000000..80db0e1
--- /dev/null
+++ b/test/fixedbugs/issue30862.dir/main.go
@@ -0,0 +1,28 @@
+// Copyright 2019 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"
+       "os"
+
+       "./b"
+)
+
+// Test case for issue 30862.
+
+// Be aware that unless GOEXPERIMENT=fieldtrack is set when building
+// the compiler, this test will fail if executed with a regular GC
+// compiler.
+
+func main() {
+       bad := b.Test()
+       if len(bad) > 0 {
+               for _, s := range bad {
+                       fmt.Fprintf(os.Stderr, "test failed: %s\n", s)
+               }
+               os.Exit(1)
+       }
+}

diff --git a/test/fixedbugs/issue30862.go b/test/fixedbugs/issue30862.go
new file mode 100644 (file)
index 0000000..ba122cc
--- /dev/null
+++ b/test/fixedbugs/issue30862.go
@@ -0,0 +1,14 @@
+// rundir
+
+// Copyright 2019 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.
+
+// Test case for issue 30862.  This test as written will
+// fail for the main 'gc' compiler unless GOEXPERIMENT=fieldtrack
+// is set when building it, whereas gccgo has field tracking
+// enabled by default (hence the build tag below).
+
+// +build gccgo
+
+package ignored