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
use crate::errors::{ValidationError, ValidationResult};
use lazy_static::lazy_static;
use regex::Regex;
use serde::{Deserialize, Serialize};
use std::str::FromStr;
lazy_static! {
static ref TYPE_VALIDATOR: Regex = Regex::new("^[a-zA-Z0-9-_]+$").unwrap();
}
#[derive(Eq, PartialEq, Clone, Debug, Hash, Ord, PartialOrd, Serialize, Deserialize)]
pub struct Type(pub String);
impl Type {
pub fn new<S: Into<String>>(s: S) -> ValidationResult<Self> {
let s = s.into();
if s.len() > 255 {
Err(ValidationError::ValueTooLong)
} else if !TYPE_VALIDATOR.is_match(&s[..]) {
Err(ValidationError::InvalidValue)
} else {
Ok(Type(s))
}
}
pub unsafe fn new_unchecked<S: Into<String>>(s: S) -> Self {
Type(s.into())
}
}
impl Default for Type {
fn default() -> Self {
Self { 0: "".to_string() }
}
}
impl FromStr for Type {
type Err = ValidationError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
Self::new(s.to_string())
}
}
#[cfg(test)]
mod tests {
use super::Type;
use std::str::FromStr;
#[test]
fn should_fail_for_invalid_types() {
let long_t = (0..256).map(|_| "X").collect::<String>();
assert!(Type::new(long_t).is_err());
assert!(Type::new("$").is_err());
}
#[test]
fn should_convert_str_to_type() {
assert_eq!(Type::from_str("foo").unwrap(), Type::new("foo").unwrap());
}
}