cluExtIO/write/
empty.rs

1
2use crate::write::ext_write::ExtWrite;
3
4use std::io;
5use std::io::Write;
6use std::fmt;
7
8pub type GuardEmptyWrite = EmptyWrite;
9
10///An implementation of `Trait Write` that does nothing.
11#[derive(Debug)]
12pub struct EmptyWrite;
13
14impl EmptyWrite {
15	#[inline]
16	pub const fn new() -> Self {
17		EmptyWrite
18	}
19}
20
21impl From<()> for EmptyWrite {
22	#[inline(always)]
23	fn from(_a: ()) -> Self {
24		Self::new()
25	}
26}
27
28
29impl Write for EmptyWrite {
30	#[inline(always)]
31	fn write<'a>(&mut self, _buf: &'a [u8]) -> io::Result<usize> {
32		Ok( 0 )
33	}
34
35	#[inline(always)]
36	fn flush(&mut self) -> io::Result<()> {
37		Ok( () )
38	}
39
40     #[inline(always)]
41     fn write_all<'a>(&mut self, _buf: &'a [u8]) -> io::Result<()> {
42          Ok( () )
43     }
44
45     #[inline(always)]
46     fn write_fmt(&mut self, _fmt: fmt::Arguments) -> io::Result<()> { 
47          Ok( () )
48     }
49}
50
51impl Clone for EmptyWrite {
52     #[inline(always)]
53     fn clone(&self) -> Self {
54          EmptyWrite
55     }
56}
57
58impl<'a> ExtWrite<'a> for EmptyWrite {    
59     type LockWrite = GuardEmptyWrite; 
60
61     #[inline]
62     fn lock(&self) -> Self::LockWrite {
63          GuardEmptyWrite::new()
64     }
65}
66
67
68impl Into<Box<Write>> for EmptyWrite {
69     #[inline]
70     fn into(self) -> Box<Write> {
71          Box::new(self) as Box<Write>
72     }
73}
cluExtIO/write/empty.rs

cluExtIO/write/
empty.rs
