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
|
// Copyright 2016 Joe Wilm, The Alacritty Project Contributors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use std::cmp;
#[cfg(not(feature = "nightly"))]
#[inline(always)]
pub unsafe fn unlikely(x: bool) -> bool {
x
}
#[cfg(feature = "nightly")]
pub use ::std::intrinsics::unlikely;
/// Threading utilities
pub mod thread {
/// Like `thread::spawn`, but with a `name` argument
pub fn spawn_named<F, T, S>(name: S, f: F) -> ::std::thread::JoinHandle<T>
where F: FnOnce() -> T,
F: Send + 'static,
T: Send + 'static,
S: Into<String>
{
::std::thread::Builder::new()
.name(name.into())
.spawn(f)
.expect("thread spawn works")
}
pub use ::std::thread::*;
}
pub fn limit<T: Ord>(value: T, min: T, max: T) -> T {
cmp::min(cmp::max(value, min), max)
}
/// Utilities for writing to the
pub mod fmt {
use std::fmt;
macro_rules! define_colors {
($($(#[$attrs:meta])* pub struct $s:ident => $color:expr;)*) => {
$(
$(#[$attrs])*
pub struct $s<T>(pub T);
impl<T: fmt::Display> fmt::Display for $s<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, concat!("\x1b[", $color, "m{}\x1b[0m"), self.0)
}
}
impl<T: fmt::Debug> fmt::Debug for $s<T> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, concat!("\x1b[", $color, "m{:?}\x1b[0m"), self.0)
}
}
)*
}
}
define_colors! {
/// Write a `Display` or `Debug` escaped with Red
pub struct Red => "31";
/// Write a `Display` or `Debug` escaped with Green
pub struct Green => "32";
/// Write a `Display` or `Debug` escaped with Yellow
pub struct Yellow => "33";
}
}
#[cfg(test)]
mod tests {
use super::limit;
#[test]
fn limit_works() {
assert_eq!(10, limit(10, 0, 100));
assert_eq!(10, limit(5, 10, 100));
assert_eq!(100, limit(1000, 10, 100));
}
}
|
