From 64b1889e2d98e336160cad337a7781c720696290 Mon Sep 17 00:00:00 2001
From: Than McIntosh <thanm@google.com>
Date: Fri, 15 Mar 2019 13:58:21 -0400
Subject: [PATCH] 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>
---
 test/fixedbugs/issue30862.dir/a.go    | 15 ++++++++++++++
 test/fixedbugs/issue30862.dir/b.go    | 29 +++++++++++++++++++++++++++
 test/fixedbugs/issue30862.dir/main.go | 28 ++++++++++++++++++++++++++
 test/fixedbugs/issue30862.go          | 14 +++++++++++++
 4 files changed, 86 insertions(+)
 create mode 100644 test/fixedbugs/issue30862.dir/a.go
 create mode 100644 test/fixedbugs/issue30862.dir/b.go
 create mode 100644 test/fixedbugs/issue30862.dir/main.go
 create mode 100644 test/fixedbugs/issue30862.go

diff --git a/test/fixedbugs/issue30862.dir/a.go b/test/fixedbugs/issue30862.dir/a.go
new file mode 100644
index 0000000000..c23f4de1ef
--- /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
index 0000000000..3e501bb8dc
--- /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
index 0000000000..80db0e13a8
--- /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
index 0000000000..ba122cc3c8
--- /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
-- 
2.50.0