1// errorcheck 2 3// Copyright 2009 The Go Authors. All rights reserved. 4// Use of this source code is governed by a BSD-style 5// license that can be found in the LICENSE file. 6 7// Test methods derived from embedded interface and *interface values. 8 9package main 10 11import "os" 12 13const Value = 1e12 14 15type Inter interface { M() int64 } 16 17type T int64 18func (t T) M() int64 { return int64(t) } 19var t = T(Value) 20var pt = &t 21var ti Inter = t 22var pti = &ti 23 24type S struct { Inter } 25var s = S{ ti } 26var ps = &s 27 28type SP struct { *Inter } // ERROR "interface" 29 30var i Inter 31var pi = &i 32 33var ok = true 34 35func check(s string, v int64) { 36 if v != Value { 37 println(s, v) 38 ok = false 39 } 40} 41 42func main() { 43 check("t.M()", t.M()) 44 check("pt.M()", pt.M()) 45 check("ti.M()", ti.M()) 46 check("pti.M()", pti.M()) // ERROR "method" 47 check("s.M()", s.M()) 48 check("ps.M()", ps.M()) 49 50 i = t 51 check("i = t; i.M()", i.M()) 52 check("i = t; pi.M()", pi.M()) // ERROR "method" 53 54 i = pt 55 check("i = pt; i.M()", i.M()) 56 check("i = pt; pi.M()", pi.M()) // ERROR "method" 57 58 i = s 59 check("i = s; i.M()", i.M()) 60 check("i = s; pi.M()", pi.M()) // ERROR "method" 61 62 i = ps 63 check("i = ps; i.M()", i.M()) 64 check("i = ps; pi.M()", pi.M()) // ERROR "method" 65 66 if !ok { 67 println("BUG: interface10") 68 os.Exit(1) 69 } 70} 71