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| // 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)
| }
| }
|
|
