| // run |
| |
| // Copyright 2012 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. |
| |
| // Issue 5704: Conversions of empty strings to byte |
| // or rune slices return empty but non-nil slices. |
| |
| package main |
| |
| type ( |
| mystring string |
| mybytes []byte |
| myrunes []rune |
| ) |
| |
| func checkBytes(s []byte, arg string) { |
| if len(s) != 0 { |
| panic("len(" + arg + ") != 0") |
| } |
| if s == nil { |
| panic(arg + " == nil") |
| } |
| } |
| |
| func checkRunes(s []rune, arg string) { |
| if len(s) != 0 { |
| panic("len(" + arg + ") != 0") |
| } |
| if s == nil { |
| panic(arg + " == nil") |
| } |
| } |
| |
| func main() { |
| checkBytes([]byte(""), `[]byte("")`) |
| checkBytes([]byte(mystring("")), `[]byte(mystring(""))`) |
| checkBytes(mybytes(""), `mybytes("")`) |
| checkBytes(mybytes(mystring("")), `mybytes(mystring(""))`) |
| |
| checkRunes([]rune(""), `[]rune("")`) |
| checkRunes([]rune(mystring("")), `[]rune(mystring(""))`) |
| checkRunes(myrunes(""), `myrunes("")`) |
| checkRunes(myrunes(mystring("")), `myrunes(mystring(""))`) |
| } |
