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
use std::{ ptr, str, slice, fmt };
use std::ops::Deref;
pub const MAX_LEN: usize = 30;
#[derive(Clone, Copy)]
pub struct Short {
len: u8,
value: [u8; MAX_LEN],
}
impl Short {
#[inline(always)]
pub unsafe fn from_slice(slice: &str) -> Self {
let mut short = Short {
value: [0; MAX_LEN],
len: slice.len() as u8,
};
ptr::copy_nonoverlapping(slice.as_ptr(), short.value.as_mut_ptr(), slice.len());
short
}
#[inline]
pub fn as_str(&self) -> &str {
unsafe {
str::from_utf8_unchecked(
slice::from_raw_parts(self.value.as_ptr(), self.len as usize)
)
}
}
}
impl PartialEq for Short {
#[inline]
fn eq(&self, other: &Short) -> bool {
self.as_str() == other.as_str()
}
}
impl fmt::Debug for Short {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
fmt::Debug::fmt(self.as_str(), f)
}
}
impl fmt::Display for Short {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
fmt::Display::fmt(self.as_str(), f)
}
}
impl Deref for Short {
type Target = str;
#[inline(always)]
fn deref(&self) -> &str {
self.as_str()
}
}
impl From<Short> for String {
fn from(short: Short) -> String {
String::from(short.as_str())
}
}
impl PartialEq<str> for Short {
fn eq(&self, other: &str) -> bool {
self.as_str().eq(other)
}
}
impl PartialEq<Short> for str {
fn eq(&self, other: &Short) -> bool {
other.as_str().eq(self)
}
}
impl PartialEq<String> for Short {
fn eq(&self, other: &String) -> bool {
self.as_str().eq(other)
}
}
impl PartialEq<Short> for String {
fn eq(&self, other: &Short) -> bool {
other.as_str().eq(self)
}
}