| // run |
| |
| // Copyright 2023 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. |
| |
| // The gofrontend used to mishandle this code due to a pass ordering issue. |
| // It was inconsistent as to whether unsafe.Sizeof(byte(0)) was a constant, |
| // and therefore as to whether it was a direct-iface type. |
| |
| package main |
| |
| import "unsafe" |
| |
| type A [unsafe.Sizeof(byte(0))]*byte |
| |
| func (r A) V() byte { |
| return *r[0] |
| } |
| |
| func F() byte { |
| panic("F") // should never be called |
| } |
| |
| type B [unsafe.Sizeof(F())]*byte |
| |
| func (r B) V() byte { |
| return *r[0] |
| } |
| |
| func main() { |
| b := byte(1) |
| v := A{&b}.V() + B{&b}.V() |
| if v != 2 { |
| panic(v) |
| } |
| } |
