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cfg_if::cfg_if! {
if #[cfg(feature = "std")] {
use std::borrow::Cow;
use std::fmt;
use std::path::PathBuf;
use std::prelude::v1::*;
use std::str;
}
}
#[derive(Debug)]
pub enum BytesOrWideString<'a> {
Bytes(&'a [u8]),
Wide(&'a [u16]),
}
#[cfg(feature = "std")]
impl<'a> BytesOrWideString<'a> {
pub fn to_str_lossy(&self) -> Cow<'a, str> {
use self::BytesOrWideString::*;
match self {
&Bytes(slice) => String::from_utf8_lossy(slice),
&Wide(wide) => Cow::Owned(String::from_utf16_lossy(wide)),
}
}
pub fn into_path_buf(self) -> PathBuf {
#[cfg(unix)]
{
use std::ffi::OsStr;
use std::os::unix::ffi::OsStrExt;
if let BytesOrWideString::Bytes(slice) = self {
return PathBuf::from(OsStr::from_bytes(slice));
}
}
#[cfg(windows)]
{
use std::ffi::OsString;
use std::os::windows::ffi::OsStringExt;
if let BytesOrWideString::Wide(slice) = self {
return PathBuf::from(OsString::from_wide(slice));
}
}
if let BytesOrWideString::Bytes(b) = self {
if let Ok(s) = str::from_utf8(b) {
return PathBuf::from(s);
}
}
unreachable!()
}
}
#[cfg(feature = "std")]
impl<'a> fmt::Display for BytesOrWideString<'a> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
self.to_str_lossy().fmt(f)
}
}