Imported Upstream version 60upstream/60

1 files changed, 58 insertions, 0 deletions

diff --git a/test/interface/receiver1.go b/test/interface/receiver1.go
new file mode 100644
index 000000000..51312d000
--- /dev/null
+++ b/test/interface/receiver1.go
@@ -0,0 +1,58 @@
+// errchk $G $D/$F.go
+
+// Copyright 2009 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.
+
+// Error messages about missing implicit methods.
+
+package main
+
+type T int
+
+func (t T) V()
+func (t *T) P()
+
+type V interface {
+	V()
+}
+type P interface {
+	P()
+	V()
+}
+
+type S struct {
+	T
+}
+type SP struct {
+	*T
+}
+
+func main() {
+	var t T
+	var v V
+	var p P
+	var s S
+	var sp SP
+
+	v = t
+	p = t // ERROR "does not implement|requires a pointer"
+	_, _ = v, p
+	v = &t
+	p = &t
+	_, _ = v, p
+
+	v = s
+	p = s // ERROR "does not implement|requires a pointer"
+	_, _ = v, p
+	v = &s
+	p = &s
+	_, _ = v, p
+
+	v = sp
+	p = sp // no error!
+	_, _ = v, p
+	v = &sp
+	p = &sp
+	_, _ = v, p
+}