mirror of
https://github.com/golang/go
synced 2024-11-23 16:20:04 -07:00
6cd4d59db6
Gccgo incorrectly executed functions multiple times when they appeared in a composite literal that required a conversion between different interface types. Change-Id: I7b40e76ed23fa8440ffa03b262041265c109adf7 Reviewed-on: https://go-review.googlesource.com/1710 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Minux Ma <minux@golang.org>
52 lines
695 B
Go
52 lines
695 B
Go
// run
|
|
|
|
// Copyright 2014 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.
|
|
|
|
// Gccgo incorrectly executed functions multiple times when they
|
|
// appeared in a composite literal that required a conversion between
|
|
// different interface types.
|
|
|
|
package main
|
|
|
|
type MyInt int
|
|
|
|
var c MyInt
|
|
|
|
func (c *MyInt) S(i int) {
|
|
*c = MyInt(i)
|
|
}
|
|
|
|
func (c *MyInt) V() int {
|
|
return int(*c)
|
|
}
|
|
|
|
type i1 interface {
|
|
S(int)
|
|
V() int
|
|
}
|
|
|
|
type i2 interface {
|
|
V() int
|
|
}
|
|
|
|
type s struct {
|
|
i i2
|
|
}
|
|
|
|
func f() i1 {
|
|
c++
|
|
return &c
|
|
}
|
|
|
|
func main() {
|
|
p := &s{f()}
|
|
if v := p.i.V(); v != 1 {
|
|
panic(v)
|
|
}
|
|
if c != 1 {
|
|
panic(c)
|
|
}
|
|
}
|