| // Copyright (c) 2017 Baidu, Inc. All Rights Reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions |
| // are met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in |
| // the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Baidu, Inc., nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| //! Unix-specific extension to the primitives in the `std::ffi` module |
| |
| use core::mem; |
| use ffi::{OsStr, OsString}; |
| use sys::os_str::Buf; |
| use sys_common::{FromInner, IntoInner, AsInner}; |
| |
| /// Unix-specific extensions to `OsString`. |
| pub trait OsStringExt { |
| /// Creates an [`OsString`] from a byte vector. |
| /// |
| fn from_vec(vec: Vec<u8>) -> Self; |
| |
| /// Yields the underlying byte vector of this [`OsString`]. |
| /// |
| fn into_vec(self) -> Vec<u8>; |
| } |
| |
| impl OsStringExt for OsString { |
| fn from_vec(vec: Vec<u8>) -> OsString { |
| FromInner::from_inner(Buf { inner: vec }) |
| } |
| fn into_vec(self) -> Vec<u8> { |
| self.into_inner().inner |
| } |
| } |
| |
| /// Unix-specific extensions to `OsStr`. |
| pub trait OsStrExt { |
| /// Creates an [`OsStr`] from a byte slice. |
| /// |
| fn from_bytes(slice: &[u8]) -> &Self; |
| |
| /// Gets the underlying byte view of the [`OsStr`] slice. |
| /// |
| fn as_bytes(&self) -> &[u8]; |
| } |
| |
| impl OsStrExt for OsStr { |
| fn from_bytes(slice: &[u8]) -> &OsStr { |
| unsafe { mem::transmute(slice) } |
| } |
| fn as_bytes(&self) -> &[u8] { |
| &self.as_inner().inner |
| } |
| } |