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authorOndřej Surý <ondrej@sury.org>2011-09-13 13:13:40 +0200
committerOndřej Surý <ondrej@sury.org>2011-09-13 13:13:40 +0200
commit5ff4c17907d5b19510a62e08fd8d3b11e62b431d (patch)
treec0650497e988f47be9c6f2324fa692a52dea82e1 /test/interface/receiver1.go
parent80f18fc933cf3f3e829c5455a1023d69f7b86e52 (diff)
downloadgolang-upstream/60.tar.gz
Imported Upstream version 60upstream/60
Diffstat (limited to 'test/interface/receiver1.go')
-rw-r--r--test/interface/receiver1.go58
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
+}