1 // run 2 3 // Copyright 2014 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 // Gccgo incorrectly executed functions multiple times when they 8 // appeared in a composite literal that required a conversion between 9 // different interface types. 10 11 package main 12 13 type MyInt int 14 15 var c MyInt 16 17 func (c *MyInt) S(i int) { 18 *c = MyInt(i) 19 } 20 21 func (c *MyInt) V() int { 22 return int(*c) 23 } 24 25 type i1 interface { 26 S(int) 27 V() int 28 } 29 30 type i2 interface { 31 V() int 32 } 33 34 type s struct { 35 i i2 36 } 37 38 func f() i1 { 39 c++ 40 return &c 41 } 42 43 func main() { 44 p := &s{f()} 45 if v := p.i.V(); v != 1 { 46 panic(v) 47 } 48 if c != 1 { 49 panic(c) 50 } 51 } 52
