os_str.rs.html -- source
Description: Source to the Rust file `/usr/obj/ports/rust-1.20.0/rustc-1.20.0-src/src/libstd/sys/unix/os_str.rs`.
Keywords: rust, rustlang, rust-lang

      1
      2
      3
      4
      5
      6
      7
      8
      9
     10
     11
     12
     13
     14
     15
     16
     17
     18
     19
     20
     21
     22
     23
     24
     25
     26
     27
     28
     29
     30
     31
     32
     33
     34
     35
     36
     37
     38
     39
     40
     41
     42
     43
     44
     45
     46
     47
     48
     49
     50
     51
     52
     53
     54
     55
     56
     57
     58
     59
     60
     61
     62
     63
     64
     65
     66
     67
     68
     69
     70
     71
     72
     73
     74
     75
     76
     77
     78
     79
     80
     81
     82
     83
     84
     85
     86
     87
     88
     89
     90
     91
     92
     93
     94
     95
     96
     97
     98
     99
    100
    101
    102
    103
    104
    105
    106
    107
    108
    109
    110
    111
    112
    113
    114
    115
    116
    117
    118
    119
    120
    121
    122
    123
    124
    125
    126
    127
    128
    129
    130
    131
    132
    133
    134
    135
    136
    137
    138
    139
    140
    141
    142
    143
    144
    145
    146
    147
    148
    149
    150
    151
    152
    153
    154
    155
    156
    157
    158
    159

    // 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 borrow::Cow;
    use fmt;
    use str;
    use mem;
    use sys_common::{AsInner, IntoInner};
    use std_unicode::lossy::Utf8Lossy;

    #[derive(Clone, Hash)]
    pub struct Buf {
        pub inner: Vec<u8>
    }

    pub struct Slice {
        pub inner: [u8]
    }

    impl fmt::Debug for Slice {
        fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
            fmt::Debug::fmt(&Utf8Lossy::from_bytes(&self.inner), formatter)
        }
    }

    impl fmt::Display for Slice {
        fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
            fmt::Display::fmt(&Utf8Lossy::from_bytes(&self.inner), formatter)
        }
    }

    impl fmt::Debug for Buf {
        fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
            fmt::Debug::fmt(self.as_slice(), formatter)
        }
    }

    impl fmt::Display for Buf {
        fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
            fmt::Display::fmt(self.as_slice(), formatter)
        }
    }

    impl IntoInner<Vec<u8>> for Buf {
        fn into_inner(self) -> Vec<u8> {
            self.inner
        }
    }

    impl AsInner<[u8]> for Buf {
        fn as_inner(&self) -> &[u8] {
            &self.inner
        }
    }

    impl Buf {
        pub fn from_string(s: String) -> Buf {
            Buf { inner: s.into_bytes() }
        }

        #[inline]
        pub fn with_capacity(capacity: usize) -> Buf {
            Buf {
                inner: Vec::with_capacity(capacity)
            }
        }

        #[inline]
        pub fn clear(&mut self) {
            self.inner.clear()
        }

        #[inline]
        pub fn capacity(&self) -> usize {
            self.inner.capacity()
        }

        #[inline]
        pub fn reserve(&mut self, additional: usize) {
            self.inner.reserve(additional)
        }

        #[inline]
        pub fn reserve_exact(&mut self, additional: usize) {
            self.inner.reserve_exact(additional)
        }

        #[inline]
        pub fn shrink_to_fit(&mut self) {
            self.inner.shrink_to_fit()
        }

        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.extend_from_slice(&s.inner)
        }

        #[inline]
        pub fn into_box(self) -> Box<Slice> {
            unsafe { mem::transmute(self.inner.into_boxed_slice()) }
        }

        #[inline]
        pub fn from_box(boxed: Box<Slice>) -> Buf {
            let inner: Box<[u8]> = unsafe { mem::transmute(boxed) };
            Buf { inner: inner.into_vec() }
        }
    }

    impl Slice {
        fn from_u8_slice(s: &[u8]) -> &Slice {
            unsafe { mem::transmute(s) }
        }

        pub fn from_str(s: &str) -> &Slice {
            Slice::from_u8_slice(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() }
        }

        #[inline]
        pub fn into_box(&self) -> Box<Slice> {
            let boxed: Box<[u8]> = self.inner.into();
            unsafe { mem::transmute(boxed) }
        }

        pub fn empty_box() -> Box<Slice> {
            let boxed: Box<[u8]> = Default::default();
            unsafe { mem::transmute(boxed) }
        }
    }

# Help

## Keyboard Shortcuts

?
  Show this help dialog
S
  Focus the search field
⇤
  Move up in search results
⇥
  Move down in search results
⏎
  Go to active search result
+
  Collapse/expand all sections

## Search Tricks

Prefix searches with a type followed by a colon (e.g. `fn:`) to restrict the search to a given type.

Accepted types are: `fn`, `mod`, `struct`, `enum`, `trait`, `type`, `macro`, and `const`.

Search functions by type signature (e.g. `vec -> usize` or `* -> vec`)