You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
826 B
52 lines
826 B
// Copyright 2015 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"
|
|
"p"
|
|
)
|
|
|
|
type I interface {
|
|
Add(out *P)
|
|
}
|
|
|
|
type P struct {
|
|
V *int32
|
|
}
|
|
|
|
type T struct{}
|
|
|
|
var x int32 = 42
|
|
|
|
func Int32x(i int32) *int32 {
|
|
return &i
|
|
}
|
|
|
|
func (T) Add(out *P) {
|
|
out.V = p.Int32(x) // inlined, p.i.2 moved to heap
|
|
}
|
|
|
|
var PP P
|
|
var out *P = &PP
|
|
|
|
func F(s I) interface{} {
|
|
s.Add(out) // not inlined.
|
|
return out
|
|
}
|
|
|
|
var s T
|
|
|
|
func main() {
|
|
println("Starting")
|
|
fmt.Sprint(new(int32))
|
|
resp := F(s).(*P)
|
|
println("Before, *resp.V=", *resp.V) // Trashes *resp.V in process of printing.
|
|
println("After, *resp.V=", *resp.V)
|
|
if got, want := *resp.V, int32(42); got != want {
|
|
fmt.Printf("FAIL, got %v, want %v", got, want)
|
|
}
|
|
}
|