* Marks `#[stable]` the contents of the `std::convert` module.
* Added methods `PathBuf::as_path`, `OsString::as_os_str`,
`String::as_str`, `Vec::{as_slice, as_mut_slice}`.
* Deprecates `OsStr::from_str` in favor of a new, stable, and more
general `OsStr::new`.
* Adds unstable methods `OsString::from_bytes` and `OsStr::{to_bytes,
to_cstring}` for ergonomic FFI usage.
[breaking-change]
#![feature(std_misc)]
#![feature(test)]
#![feature(path_ext)]
-#![feature(convert)]
#![feature(str_char)]
#![deny(warnings)]
#![feature(unsafe_no_drop_flag, filling_drop)]
#![feature(step_by)]
#![feature(str_char)]
-#![feature(convert)]
#![feature(slice_patterns)]
#![feature(debug_builders)]
#![cfg_attr(test, feature(rand, rustc_private, test, hash, collections))]
self.vec
}
+ /// Extract a string slice containing the entire string.
+ #[inline]
+ #[unstable(feature = "convert",
+ reason = "waiting on RFC revision")]
+ pub fn as_str(&self) -> &str {
+ self
+ }
+
/// Pushes the given string onto this string buffer.
///
/// # Examples
#[allow(deprecated)]
impl Str for String {
#[inline]
- #[stable(feature = "rust1", since = "1.0.0")]
fn as_slice(&self) -> &str {
unsafe { mem::transmute(&*self.vec) }
}
}
}
+ /// Extract a slice containing the entire vector.
+ #[inline]
+ #[unstable(feature = "convert",
+ reason = "waiting on RFC revision")]
+ pub fn as_slice(&self) -> &[T] {
+ self
+ }
+
/// Deprecated: use `&mut s[..]` instead.
#[inline]
- #[unstable(feature = "collections",
- reason = "will be replaced by slice syntax")]
- #[deprecated(since = "1.0.0", reason = "use &mut s[..] instead")]
+ #[unstable(feature = "convert",
+ reason = "waiting on RFC revision")]
pub fn as_mut_slice(&mut self) -> &mut [T] {
&mut self[..]
}
}
}
-#[stable(feature = "rust1", since = "1.0.0")]
-impl<T> Into<Vec<T>> for Vec<T> {
- fn into(self) -> Vec<T> {
- self
- }
-}
-
#[stable(feature = "rust1", since = "1.0.0")]
impl<T> AsRef<[T]> for Vec<T> {
fn as_ref(&self) -> &[T] {
//! conversions from one type to another. They follow the standard
//! Rust conventions of `as`/`to`/`into`/`from`.
-#![unstable(feature = "convert",
- reason = "recently added, experimental traits")]
+#![stable(feature = "rust1", since = "1.0.0")]
use marker::Sized;
/// A cheap, reference-to-reference conversion.
+#[stable(feature = "rust1", since = "1.0.0")]
pub trait AsRef<T: ?Sized> {
/// Perform the conversion.
+ #[stable(feature = "rust1", since = "1.0.0")]
fn as_ref(&self) -> &T;
}
/// A cheap, mutable reference-to-mutable reference conversion.
+#[stable(feature = "rust1", since = "1.0.0")]
pub trait AsMut<T: ?Sized> {
/// Perform the conversion.
+ #[stable(feature = "rust1", since = "1.0.0")]
fn as_mut(&mut self) -> &mut T;
}
/// A conversion that consumes `self`, which may or may not be
/// expensive.
+#[stable(feature = "rust1", since = "1.0.0")]
pub trait Into<T>: Sized {
/// Perform the conversion.
+ #[stable(feature = "rust1", since = "1.0.0")]
fn into(self) -> T;
}
/// Construct `Self` via a conversion.
+#[stable(feature = "rust1", since = "1.0.0")]
pub trait From<T> {
/// Perform the conversion.
+ #[stable(feature = "rust1", since = "1.0.0")]
fn from(T) -> Self;
}
// GENERIC IMPLS
////////////////////////////////////////////////////////////////////////////////
-// As implies Into
-impl<'a, T: ?Sized, U: ?Sized> Into<&'a U> for &'a T where T: AsRef<U> {
- fn into(self) -> &'a U {
- self.as_ref()
- }
-}
-
// As lifts over &
+#[stable(feature = "rust1", since = "1.0.0")]
impl<'a, T: ?Sized, U: ?Sized> AsRef<U> for &'a T where T: AsRef<U> {
fn as_ref(&self) -> &U {
<T as AsRef<U>>::as_ref(*self)
}
// As lifts over &mut
+#[stable(feature = "rust1", since = "1.0.0")]
impl<'a, T: ?Sized, U: ?Sized> AsRef<U> for &'a mut T where T: AsRef<U> {
fn as_ref(&self) -> &U {
<T as AsRef<U>>::as_ref(*self)
// }
// }
-// AsMut implies Into
-impl<'a, T: ?Sized, U: ?Sized> Into<&'a mut U> for &'a mut T where T: AsMut<U> {
- fn into(self) -> &'a mut U {
- (*self).as_mut()
- }
-}
-
// AsMut lifts over &mut
+#[stable(feature = "rust1", since = "1.0.0")]
impl<'a, T: ?Sized, U: ?Sized> AsMut<U> for &'a mut T where T: AsMut<U> {
fn as_mut(&mut self) -> &mut U {
(*self).as_mut()
// }
// From implies Into
+#[stable(feature = "rust1", since = "1.0.0")]
impl<T, U> Into<U> for T where U: From<T> {
fn into(self) -> U {
U::from(self)
}
}
+// From (and thus Into) is reflexive
+#[stable(feature = "rust1", since = "1.0.0")]
+impl<T> From<T> for T {
+ fn from(t: T) -> T { t }
+}
+
////////////////////////////////////////////////////////////////////////////////
// CONCRETE IMPLS
////////////////////////////////////////////////////////////////////////////////
+#[stable(feature = "rust1", since = "1.0.0")]
impl<T> AsRef<[T]> for [T] {
fn as_ref(&self) -> &[T] {
self
}
}
+#[stable(feature = "rust1", since = "1.0.0")]
impl<T> AsMut<[T]> for [T] {
fn as_mut(&mut self) -> &mut [T] {
self
}
}
+#[stable(feature = "rust1", since = "1.0.0")]
impl AsRef<str> for str {
fn as_ref(&self) -> &str {
self
#![feature(path_ext)]
#![feature(str_words)]
#![feature(str_char)]
-#![feature(convert)]
#![feature(into_cow)]
#![feature(slice_patterns)]
#![cfg_attr(test, feature(test))]
#![feature(path_ext)]
#![feature(std_misc)]
#![feature(step_by)]
-#![feature(convert)]
#![cfg_attr(test, feature(test, rand))]
extern crate syntax;
#![feature(io)]
#![feature(set_stdio)]
#![feature(unicode)]
-#![feature(convert)]
extern crate arena;
extern crate flate;
#![feature(unicode)]
#![feature(path_ext)]
#![feature(fs)]
-#![feature(convert)]
#![feature(path_relative_from)]
#![allow(trivial_casts)]
#![feature(file_path)]
#![feature(path_ext)]
#![feature(path_relative_from)]
-#![feature(convert)]
#![feature(slice_patterns)]
extern crate arena;
#![feature(std_misc)]
#![feature(unicode)]
#![feature(str_char)]
-#![feature(convert)]
#![cfg_attr(test, feature(test, old_io))]
// test harness access
use ffi::{CStr, OsStr};
use str;
use libc;
- use os::unix::prelude::*;
use ptr;
pub fn open(filename: Option<&OsStr>) -> Result<*mut u8, String> {
/// # Examples
///
/// ```
-/// # #![feature(convert)]
/// use std::env;
/// use std::path::PathBuf;
///
use core::prelude::*;
use borrow::{Borrow, Cow, ToOwned};
+use ffi::CString;
use fmt::{self, Debug};
use mem;
use string::String;
use cmp;
use hash::{Hash, Hasher};
use old_path::{Path, GenericPath};
+use vec::Vec;
use sys::os_str::{Buf, Slice};
use sys_common::{AsInner, IntoInner, FromInner};
OsString { inner: Buf::from_string(String::new()) }
}
+ /// Construct an `OsString` from a byte sequence.
+ ///
+ /// # Platform behavior
+ ///
+ /// On Unix systems, any byte sequence can be successfully
+ /// converted into an `OsString`.
+ ///
+ /// On Windows system, only UTF-8 byte sequences will successfully
+ /// convert; non UTF-8 data will produce `None`.
+ #[unstable(feature = "convert", reason = "recently added")]
+ pub fn from_bytes<B>(bytes: B) -> Option<OsString> where B: Into<Vec<u8>> {
+ #[cfg(unix)]
+ fn from_bytes_inner(vec: Vec<u8>) -> Option<OsString> {
+ use os::unix::ffi::OsStringExt;
+ Some(OsString::from_vec(vec))
+ }
+
+ #[cfg(windows)]
+ fn from_bytes_inner(vec: Vec<u8>) -> Option<OsString> {
+ String::from_utf8(vec).ok().map(OsString::from)
+ }
+
+ from_bytes_inner(bytes.into())
+ }
+
+ /// Convert to an `OsStr` slice.
+ #[stable(feature = "rust1", since = "1.0.0")]
+ pub fn as_os_str(&self) -> &OsStr {
+ self
+ }
+
/// Convert the `OsString` into a `String` if it contains valid Unicode data.
///
/// On failure, ownership of the original `OsString` is returned.
}
impl OsStr {
+ /// Coerce into an `OsStr` slice.
+ #[stable(feature = "rust1", since = "1.0.0")]
+ pub fn new<S: AsRef<OsStr> + ?Sized>(s: &S) -> &OsStr {
+ s.as_ref()
+ }
+
/// Coerce directly from a `&str` slice to a `&OsStr` slice.
#[stable(feature = "rust1", since = "1.0.0")]
+ #[deprecated(since = "1.0.0",
+ reason = "use `OsStr::new` instead")]
pub fn from_str(s: &str) -> &OsStr {
unsafe { mem::transmute(Slice::from_str(s)) }
}
OsString { inner: self.inner.to_owned() }
}
+ /// Yield this `OsStr` as a byte slice.
+ ///
+ /// # Platform behavior
+ ///
+ /// On Unix systems, this is a no-op.
+ ///
+ /// On Windows systems, this returns `None` unless the `OsStr` is
+ /// valid unicode, in which case it produces UTF-8-encoded
+ /// data. This may entail checking validity.
+ #[unstable(feature = "convert", reason = "recently added")]
+ pub fn to_bytes(&self) -> Option<&[u8]> {
+ if cfg!(windows) {
+ self.to_str().map(|s| s.as_bytes())
+ } else {
+ Some(self.bytes())
+ }
+ }
+
+ /// Create a `CString` containing this `OsStr` data.
+ ///
+ /// Fails if the `OsStr` contains interior nulls.
+ ///
+ /// This is a convenience for creating a `CString` from
+ /// `self.to_bytes()`, and inherits the platform behavior of the
+ /// `to_bytes` method.
+ #[unstable(feature = "convert", reason = "recently added")]
+ pub fn to_cstring(&self) -> Option<CString> {
+ self.to_bytes().and_then(|b| CString::new(b).ok())
+ }
+
/// Get the underlying byte representation.
///
/// Note: it is *crucial* that this API is private, to avoid
#[stable(feature = "rust1", since = "1.0.0")]
impl PartialEq<str> for OsStr {
fn eq(&self, other: &str) -> bool {
- *self == *OsStr::from_str(other)
+ *self == *OsStr::new(other)
}
}
#[stable(feature = "rust1", since = "1.0.0")]
impl PartialEq<OsStr> for str {
fn eq(&self, other: &OsStr) -> bool {
- *other == *OsStr::from_str(self)
+ *other == *OsStr::new(self)
}
}
impl PartialOrd<str> for OsStr {
#[inline]
fn partial_cmp(&self, other: &str) -> Option<cmp::Ordering> {
- self.partial_cmp(OsStr::from_str(other))
+ self.partial_cmp(OsStr::new(other))
}
}
#[deprecated(since = "1.0.0", reason = "trait is deprecated")]
impl AsOsStr for str {
fn as_os_str(&self) -> &OsStr {
- OsStr::from_str(self)
+ unsafe { mem::transmute(Slice::from_str(self)) }
}
}
#[deprecated(since = "1.0.0", reason = "trait is deprecated")]
impl AsOsStr for String {
fn as_os_str(&self) -> &OsStr {
- OsStr::from_str(&self[..])
+ unsafe { mem::transmute(Slice::from_str(self)) }
}
}
#[stable(feature = "rust1", since = "1.0.0")]
impl AsRef<OsStr> for str {
fn as_ref(&self) -> &OsStr {
- OsStr::from_str(self)
+ unsafe { mem::transmute(Slice::from_str(self)) }
}
}
#[stable(feature = "rust1", since = "1.0.0")]
impl AsRef<OsStr> for String {
fn as_ref(&self) -> &OsStr {
- OsStr::from_str(&self[..])
+ unsafe { mem::transmute(Slice::from_str(self)) }
}
}
#![feature(unsafe_no_drop_flag, filling_drop)]
#![feature(macro_reexport)]
#![feature(unique)]
-#![feature(convert)]
#![feature(allow_internal_unstable)]
#![feature(str_char)]
#![feature(into_cow)]
-#![feature(slice_patterns)]
#![feature(std_misc)]
+#![feature(slice_patterns)]
#![feature(debug_builders)]
#![cfg_attr(test, feature(test, rustc_private, std_misc))]
//! To build or modify paths, use `PathBuf`:
//!
//! ```rust
-//! # #![feature(convert)]
//! use std::path::PathBuf;
//!
//! let mut path = PathBuf::from("c:\\");
pub fn as_os_str(self) -> &'a OsStr {
match self {
Component::Prefix(p) => p.as_os_str(),
- Component::RootDir => OsStr::from_str(MAIN_SEP_STR),
- Component::CurDir => OsStr::from_str("."),
- Component::ParentDir => OsStr::from_str(".."),
+ Component::RootDir => OsStr::new(MAIN_SEP_STR),
+ Component::CurDir => OsStr::new("."),
+ Component::ParentDir => OsStr::new(".."),
Component::Normal(path) => path,
}
}
/// # Examples
///
/// ```
-/// # #![feature(convert)]
/// use std::path::PathBuf;
///
/// let mut path = PathBuf::from("c:\\");
PathBuf { inner: OsString::new() }
}
+ /// Coerce to a `Path` slice.
+ #[stable(feature = "rust1", since = "1.0.0")]
+ pub fn as_path(&self) -> &Path {
+ self
+ }
+
/// Extend `self` with `path`.
///
/// If `path` is absolute, it replaces the current path.
/// # Examples
///
/// ```
- /// # #![feature(convert)]
/// use std::path::PathBuf;
///
/// let mut buf = PathBuf::from("/");
/// Unix-specific extension to the primitives in the `std::ffi` module
#[stable(feature = "rust1", since = "1.0.0")]
pub mod ffi {
- use ffi::{CString, NulError, OsStr, OsString};
+ use ffi::{OsStr, OsString};
use mem;
use prelude::v1::*;
use sys::os_str::Buf;
/// Get the underlying byte view of the `OsStr` slice.
#[stable(feature = "rust1", since = "1.0.0")]
fn as_bytes(&self) -> &[u8];
-
- /// Convert the `OsStr` slice into a `CString`.
- #[stable(feature = "rust1", since = "1.0.0")]
- fn to_cstring(&self) -> Result<CString, NulError>;
}
#[stable(feature = "rust1", since = "1.0.0")]
fn as_bytes(&self) -> &[u8] {
&self.as_inner().inner
}
- fn to_cstring(&self) -> Result<CString, NulError> {
- CString::new(self.as_bytes())
- }
}
}
}
fn cstr(path: &Path) -> io::Result<CString> {
- let cstring = try!(path.as_os_str().to_cstring());
- Ok(cstring)
+ path.as_os_str().to_cstring().ok_or(
+ io::Error::new(io::ErrorKind::InvalidInput, "path contained a null", None))
}
pub fn mkdir(p: &Path) -> io::Result<()> {
self.args.push(arg.to_cstring().unwrap())
}
pub fn args<'a, I: Iterator<Item = &'a OsStr>>(&mut self, args: I) {
- self.args.extend(args.map(|s| OsStrExt::to_cstring(s).unwrap()))
+ self.args.extend(args.map(|s| s.to_cstring().unwrap()))
}
fn init_env_map(&mut self) {
if self.env.is_none() {
#![feature(unicode)]
#![feature(path_ext)]
#![feature(str_char)]
-#![feature(convert)]
#![feature(into_cow)]
#![feature(slice_patterns)]
#![feature(std_misc)]
#![feature(str_char)]
#![feature(path_ext)]
-#![feature(convert)]
#![cfg_attr(windows, feature(libc))]
#[macro_use] extern crate log;
#![feature(libc)]
#![feature(set_stdio)]
#![feature(os)]
-#![feature(convert)]
#![cfg_attr(test, feature(old_io))]
extern crate getopts;
#![feature(rustdoc)]
#![feature(rustc_private)]
#![feature(path_relative_from)]
-#![feature(convert)]
extern crate rustdoc;
extern crate rustc_back;
// pretty-expanded FIXME #23616
#![feature(path)]
-#![feature(convert)]
use std::env::*;
use std::path::PathBuf;
// pretty-expanded FIXME #23616
-#![feature(convert)]
-
use std::default::Default;
use std::io;
use std::fs;
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