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// 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(""))`)
}