From 57c6d36f954bdc0fa60f4312d2e7b93e0fab7a46 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <iant@golang.org>
Date: Tue, 29 Mar 2011 15:04:19 -0700
Subject: [PATCH] test: add test for interfaces with unexported methods.

R=rsc
CC=golang-dev
https://golang.org/cl/4271086
---
 test/interface/private.go  | 32 ++++++++++++++++++++++++++++++++
 test/interface/private1.go | 18 ++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100644 test/interface/private.go
 create mode 100644 test/interface/private1.go

diff --git a/test/interface/private.go b/test/interface/private.go
new file mode 100644
index 00000000000..37890c923a5
--- /dev/null
+++ b/test/interface/private.go
@@ -0,0 +1,32 @@
+// $G $D/${F}1.go && errchk $G $D/$F.go
+
+// Copyright 2011 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 "./private1"
+
+type Exported interface {
+	private()
+}
+
+type Implementation struct{}
+
+func (p *Implementation) private() {}
+
+func main() {
+	var x Exported
+	x = new(Implementation)
+	x.private()
+
+	var px p.Exported
+	px = p.X
+
+	px.private()			// ERROR "private"
+
+	px = new(Implementation)	// ERROR "private"
+
+	x = px				// ERROR "private"
+}
diff --git a/test/interface/private1.go b/test/interface/private1.go
new file mode 100644
index 00000000000..3173fbef41f
--- /dev/null
+++ b/test/interface/private1.go
@@ -0,0 +1,18 @@
+// true  # used by private.go
+
+// Copyright 2011 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 p
+
+type Exported interface {
+	private()
+}
+
+type Implementation struct{}
+
+func (p *Implementation) private() {}
+
+var X = new(Implementation)
+