1 use super::private;
2 
3 pub trait Encoded {
__get(&self) -> &[u8]4     fn __get(&self) -> &[u8];
5 }
6 
7 #[derive(Clone)]
8 pub struct EncodedChar {
9     buffer: [u8; 4],
10     length: usize,
11 }
12 
13 impl Encoded for EncodedChar {
14     #[inline]
__get(&self) -> &[u8]15     fn __get(&self) -> &[u8] {
16         &self.buffer[..self.length]
17     }
18 }
19 
20 impl Encoded for &str {
21     #[inline]
__get(&self) -> &[u8]22     fn __get(&self) -> &[u8] {
23         self.as_bytes()
24     }
25 }
26 
27 /// Allows a type to be used for searching by [`RawOsStr`] and [`RawOsString`].
28 ///
29 /// This trait is very similar to [`str::pattern::Pattern`], but its methods
30 /// are private and it is implemented for different types.
31 ///
32 /// [`RawOsStr`]: super::RawOsStr
33 /// [`RawOsString`]: super::RawOsString
34 /// [`str::pattern::Pattern`]: ::std::str::pattern::Pattern
35 #[cfg_attr(os_str_bytes_docs_rs, doc(cfg(feature = "raw_os_str")))]
36 pub trait Pattern: private::Sealed {
37     #[doc(hidden)]
38     type __Encoded: Clone + Encoded;
39 
40     #[doc(hidden)]
__encode(self) -> Self::__Encoded41     fn __encode(self) -> Self::__Encoded;
42 }
43 
44 impl Pattern for char {
45     #[doc(hidden)]
46     type __Encoded = EncodedChar;
47 
48     #[doc(hidden)]
__encode(self) -> Self::__Encoded49     fn __encode(self) -> Self::__Encoded {
50         let mut encoded = EncodedChar {
51             buffer: [0; 4],
52             length: 0,
53         };
54         encoded.length = self.encode_utf8(&mut encoded.buffer).len();
55         encoded
56     }
57 }
58 
59 impl Pattern for &str {
60     #[doc(hidden)]
61     type __Encoded = Self;
62 
63     #[doc(hidden)]
__encode(self) -> Self::__Encoded64     fn __encode(self) -> Self::__Encoded {
65         self
66     }
67 }
68 
69 impl<'a> Pattern for &'a String {
70     #[doc(hidden)]
71     type __Encoded = <&'a str as Pattern>::__Encoded;
72 
73     #[doc(hidden)]
__encode(self) -> Self::__Encoded74     fn __encode(self) -> Self::__Encoded {
75         (**self).__encode()
76     }
77 }
78