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-rw-r--r--test/interface/embed2.go75
1 files changed, 75 insertions, 0 deletions
diff --git a/test/interface/embed2.go b/test/interface/embed2.go
new file mode 100644
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+++ b/test/interface/embed2.go
@@ -0,0 +1,75 @@
+// errorcheck
+
+// 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.
+
+// Test methods derived from embedded interface and *interface values.
+
+package main
+
+import "os"
+
+const Value = 1e12
+
+type Inter interface {
+ M() int64
+}
+
+type T int64
+
+func (t T) M() int64 { return int64(t) }
+
+var t = T(Value)
+var pt = &t
+var ti Inter = t
+var pti = &ti
+
+type S struct{ Inter }
+
+var s = S{ti}
+var ps = &s
+
+type SP struct{ *Inter } // ERROR "interface"
+
+var i Inter
+var pi = &i
+
+var ok = true
+
+func check(s string, v int64) {
+ if v != Value {
+ println(s, v)
+ ok = false
+ }
+}
+
+func main() {
+ check("t.M()", t.M())
+ check("pt.M()", pt.M())
+ check("ti.M()", ti.M())
+ check("pti.M()", pti.M()) // ERROR "pointer to interface, not interface"
+ check("s.M()", s.M())
+ check("ps.M()", ps.M())
+
+ i = t
+ check("i = t; i.M()", i.M())
+ check("i = t; pi.M()", pi.M()) // ERROR "pointer to interface, not interface"
+
+ i = pt
+ check("i = pt; i.M()", i.M())
+ check("i = pt; pi.M()", pi.M()) // ERROR "pointer to interface, not interface"
+
+ i = s
+ check("i = s; i.M()", i.M())
+ check("i = s; pi.M()", pi.M()) // ERROR "pointer to interface, not interface"
+
+ i = ps
+ check("i = ps; i.M()", i.M())
+ check("i = ps; pi.M()", pi.M()) // ERROR "pointer to interface, not interface"
+
+ if !ok {
+ println("BUG: interface10")
+ os.Exit(1)
+ }
+}