enet_proto/
ver.rs

1use serde::{Deserialize, Serialize};
2use smol_str::SmolStr;
3use std::fmt;
4
5/// eNet protocol version.
6#[derive(Debug, Clone, PartialEq, Eq)]
7pub enum ProtocolVersion {
8  ZeroZeroThree,
9
10  Unknown(SmolStr),
11}
12
13impl fmt::Display for ProtocolVersion {
14  fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
15    match self {
16      Self::ZeroZeroThree => f.write_str("0.03"),
17      Self::Unknown(v) => f.write_str(v.as_str()),
18    }
19  }
20}
21
22impl Serialize for ProtocolVersion {
23  fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
24  where
25    S: serde::Serializer,
26  {
27    match self {
28      Self::ZeroZeroThree => "0.03".serialize(serializer),
29      Self::Unknown(v) => v.serialize(serializer),
30    }
31  }
32}
33
34struct ProtocolVisitor;
35
36impl<'de> serde::de::Visitor<'de> for ProtocolVisitor {
37  type Value = ProtocolVersion;
38
39  fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
40    formatter.write_str("protocol version")
41  }
42
43  fn visit_str<E>(self, v: &str) -> Result<Self::Value, E>
44  where
45    E: serde::de::Error,
46  {
47    match v {
48      "0.03" => Ok(ProtocolVersion::ZeroZeroThree),
49      _ => Ok(ProtocolVersion::Unknown(v.into())),
50    }
51  }
52}
53
54impl<'de> Deserialize<'de> for ProtocolVersion {
55  #[inline]
56  fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
57  where
58    D: serde::Deserializer<'de>,
59  {
60    deserializer.deserialize_str(ProtocolVisitor)
61  }
62}
63
64#[cfg(test)]
65mod tests {
66  use super::*;
67  use serde_test::{assert_tokens, Token};
68
69  #[test]
70  fn protocol_version_zerozerothree_serde() {
71    let version = ProtocolVersion::ZeroZeroThree;
72
73    assert_tokens(&version, &[Token::Str("0.03")])
74  }
75
76  #[test]
77  fn protocol_version_other_serde() {
78    let version = ProtocolVersion::Unknown("other".into());
79
80    assert_tokens(&version, &[Token::Str("other")])
81  }
82}
enet_proto/ver.rs

enet_proto/
ver.rs
