mirror of
https://github.com/golang/go
synced 2024-11-24 08:50:14 -07:00
73 lines
1.2 KiB
Go
73 lines
1.2 KiB
Go
|
// run
|
||
|
|
|
||
|
|
// Copyright 2017 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.
|
||
|
|
|
||
|
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
)
|
||
|
|
|
||
|
|
type PI struct {
|
||
|
|
Enabled bool
|
||
|
|
}
|
||
|
|
|
||
|
|
type SI struct {
|
||
|
|
M map[string]*PI
|
||
|
|
}
|
||
|
|
|
||
|
|
//go:noinline
|
||
|
|
func (s *SI) test(name string) (*int, error) {
|
||
|
|
n := new(int)
|
||
|
|
*n = 99
|
||
|
|
if err := addUpdate(n, s.M[name].Enabled, "enabled"); err != nil { // this was miscompiled
|
||
|
|
return nil, fmt.Errorf(" error adding update for enable flag %t : %s",
|
||
|
|
s.M[name].Enabled, err)
|
||
|
|
}
|
||
|
|
return n, nil
|
||
|
|
}
|
||
|
|
|
||
|
|
//go:noinline
|
||
|
|
func addUpdate(n *int, in interface{}, s ...string) error {
|
||
|
|
if *n != 99 {
|
||
|
|
println("FAIL, *n should be 99, not", *n)
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func main1() {
|
||
|
|
s := &SI{make(map[string]*PI)}
|
||
|
|
s.M["dog"] = &PI{}
|
||
|
|
s.test("dog")
|
||
|
|
}
|
||
|
|
|
||
|
|
//go:noinline
|
||
|
|
func g(b *byte, i interface{}) error {
|
||
|
|
if *b != 17 {
|
||
|
|
println("FAIL, *b should be 17, not", *b)
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
//go:noinline
|
||
|
|
func f(x *byte, m map[string]*bool) {
|
||
|
|
if err := g(x, *m["hello"]); err != nil { // this was miscompiled
|
||
|
|
return
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func main2() {
|
||
|
|
m := make(map[string]*bool)
|
||
|
|
x := false
|
||
|
|
m["hello"] = &x
|
||
|
|
b := byte(17)
|
||
|
|
f(&b, m)
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
main2()
|
||
|
|
main1()
|
||
|
|
}
|