Files
rust/src/libstd/sys/unix/os_str.rs
Ivan Petkov 2b03718618 Enable recursion for visit_ty in lint visitor
* The lint visitor's visit_ty method did not recurse, and had a
  reference to the now closed #10894
* The newly enabled recursion has only affected the `deprectated` lint
  which now detects uses of deprecated items in trait impls and
  function return types
* Renamed some references to `CowString` and `CowVec` to `Cow<str>` and
  `Cow<[T]>`, respectively, which appear outside of the crate which
  defines them
* Replaced a few instances of `InvariantType<T>` with
  `PhantomData<Cell<T>>`
* Disabled the `deprecated` lint in several places that
  reference/implement traits on deprecated items which will get cleaned
  up in the future
* Disabled the `exceeding_bitshifts` lint for
  compile-fail/huge-array-simple test so it doesn't shadow the expected
  error on 32bit systems
* Unfortunately, this means that if a library declares
  `#![deny(deprecated)]` and marks anything as deprecated, it will have
  to disable the lint for any uses of said item, e.g. any impl the now
  deprecated item

For any library that denies deprecated items but has deprecated items
of its own, this is a [breaking-change]
2015-03-02 15:35:48 -08:00

88 lines
2.1 KiB
Rust

// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
/// The underlying OsString/OsStr implementation on Unix systems: just
/// a `Vec<u8>`/`[u8]`.
use core::prelude::*;
use borrow::Cow;
use fmt::{self, Debug};
use vec::Vec;
use slice::SliceExt as StdSliceExt;
use str;
use string::String;
use mem;
#[derive(Clone, Hash)]
pub struct Buf {
pub inner: Vec<u8>
}
pub struct Slice {
pub inner: [u8]
}
impl Debug for Slice {
fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> {
self.to_string_lossy().fmt(formatter)
}
}
impl Debug for Buf {
fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> {
self.as_slice().fmt(formatter)
}
}
impl Buf {
pub fn from_string(s: String) -> Buf {
Buf { inner: s.into_bytes() }
}
pub fn from_str(s: &str) -> Buf {
Buf { inner: s.as_bytes().to_vec() }
}
pub fn as_slice(&self) -> &Slice {
unsafe { mem::transmute(&*self.inner) }
}
pub fn into_string(self) -> Result<String, Buf> {
String::from_utf8(self.inner).map_err(|p| Buf { inner: p.into_bytes() } )
}
pub fn push_slice(&mut self, s: &Slice) {
self.inner.push_all(&s.inner)
}
}
impl Slice {
fn from_u8_slice(s: &[u8]) -> &Slice {
unsafe { mem::transmute(s) }
}
pub fn from_str(s: &str) -> &Slice {
unsafe { mem::transmute(s.as_bytes()) }
}
pub fn to_str(&self) -> Option<&str> {
str::from_utf8(&self.inner).ok()
}
pub fn to_string_lossy(&self) -> Cow<str> {
String::from_utf8_lossy(&self.inner)
}
pub fn to_owned(&self) -> Buf {
Buf { inner: self.inner.to_vec() }
}
}