http_types_red_badger_temporary_fork/
version.rs

1use serde::{de::Error, de::Visitor, Deserialize, Deserializer, Serialize, Serializer};
2/// The version of the HTTP protocol in use.
3#[derive(facet::Facet, Copy, Clone, Debug, Eq, Ord, PartialEq, PartialOrd)]
4#[non_exhaustive]
5#[repr(u8)]
6pub enum Version {
7    /// HTTP/0.9
8    Http0_9,
9
10    /// HTTP/1.0
11    Http1_0,
12
13    /// HTTP/1.1
14    Http1_1,
15
16    /// HTTP/2.0
17    Http2_0,
18
19    /// HTTP/3.0
20    Http3_0,
21}
22
23impl Serialize for Version {
24    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
25    where
26        S: Serializer,
27    {
28        serializer.serialize_str(self.as_ref())
29    }
30}
31
32struct VersionVisitor;
33
34impl<'de> Visitor<'de> for VersionVisitor {
35    type Value = Version;
36
37    fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
38        write!(formatter, "a HTTP version as &str")
39    }
40
41    fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
42    where
43        E: Error,
44    {
45        match v {
46            "HTTP/0.9" => Ok(Version::Http0_9),
47            "HTTP/1.0" => Ok(Version::Http1_0),
48            "HTTP/1.1" => Ok(Version::Http1_1),
49            "HTTP/2" => Ok(Version::Http2_0),
50            "HTTP/3" => Ok(Version::Http3_0),
51            _ => Err(Error::invalid_value(serde::de::Unexpected::Str(v), &self)),
52        }
53    }
54
55    fn visit_string<E>(self, v: String) -> Result<Self::Value, E>
56    where
57        E: Error,
58    {
59        self.visit_str(&v)
60    }
61}
62
63impl<'de> Deserialize<'de> for Version {
64    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
65    where
66        D: Deserializer<'de>,
67    {
68        deserializer.deserialize_str(VersionVisitor)
69    }
70}
71
72impl AsRef<str> for Version {
73    fn as_ref(&self) -> &'static str {
74        match self {
75            Version::Http0_9 => "HTTP/0.9",
76            Version::Http1_0 => "HTTP/1.0",
77            Version::Http1_1 => "HTTP/1.1",
78            Version::Http2_0 => "HTTP/2",
79            Version::Http3_0 => "HTTP/3",
80        }
81    }
82}
83
84impl std::fmt::Display for Version {
85    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
86        f.write_str(self.as_ref())
87    }
88}
89
90#[cfg(test)]
91mod test {
92    use super::*;
93
94    #[test]
95    fn as_ref() {
96        assert_eq!(Version::Http0_9.as_ref(), "HTTP/0.9");
97        assert_eq!(Version::Http1_0.as_ref(), "HTTP/1.0");
98        assert_eq!(Version::Http1_1.as_ref(), "HTTP/1.1");
99        assert_eq!(Version::Http2_0.as_ref(), "HTTP/2");
100        assert_eq!(Version::Http3_0.as_ref(), "HTTP/3");
101    }
102
103    #[test]
104    fn to_string() {
105        let output = format!(
106            "{} {} {} {} {}",
107            Version::Http0_9,
108            Version::Http1_0,
109            Version::Http1_1,
110            Version::Http2_0,
111            Version::Http3_0
112        );
113        assert_eq!("HTTP/0.9 HTTP/1.0 HTTP/1.1 HTTP/2 HTTP/3", output);
114    }
115
116    #[test]
117    fn ord() {
118        use Version::*;
119        assert!(Http3_0 > Http2_0);
120        assert!(Http2_0 > Http1_1);
121        assert!(Http1_1 > Http1_0);
122        assert!(Http1_0 > Http0_9);
123    }
124
125    #[test]
126    fn serde() -> Result<(), serde_json::Error> {
127        assert_eq!("\"HTTP/3\"", serde_json::to_string(&Version::Http3_0)?);
128        assert_eq!(Version::Http1_1, serde_json::from_str("\"HTTP/1.1\"")?);
129        Ok(())
130    }
131}
http_types_red_badger_temporary_fork/version.rs

http_types_red_badger_temporary_fork/
version.rs
