nuscenes_data/serializable/
token.rs

1use crate::error::Error;
2use serde::{de::Error as _, Deserialize, Deserializer, Serialize, Serializer};
3use std::{
4    convert::TryFrom,
5    fmt::{self, Display, Formatter},
6    str::FromStr,
7};
8
9pub const TOKEN_LENGTH: usize = 16;
10
11#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
12pub struct Token(pub [u8; TOKEN_LENGTH]);
13
14impl Display for Token {
15    fn fmt(&self, formatter: &mut Formatter<'_>) -> fmt::Result {
16        let Token(bytes) = self;
17        let text = hex::encode(bytes);
18        write!(formatter, "{}", text)
19    }
20}
21
22impl FromStr for Token {
23    type Err = Error;
24
25    fn from_str(text: &str) -> Result<Self, Self::Err> {
26        let bytes = hex::decode(text)
27            .map_err(|err| Error::ParseError(format!("cannot decode token: {:?}", err)))?;
28        if bytes.len() != TOKEN_LENGTH {
29            let msg = format!(
30                "invalid length: expected length {}, but found {}",
31                TOKEN_LENGTH * 2,
32                text.len()
33            );
34            return Err(Error::ParseError(msg));
35        }
36        let array = <[u8; TOKEN_LENGTH]>::try_from(bytes.as_slice()).unwrap();
37        Ok(Token(array))
38    }
39}
40
41impl Serialize for Token {
42    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
43    where
44        S: Serializer,
45    {
46        self.to_string().serialize(serializer)
47    }
48}
49
50impl<'de> Deserialize<'de> for Token {
51    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
52    where
53        D: Deserializer<'de>,
54    {
55        let text = String::deserialize(deserializer)?;
56        let token: Self = text
57            .parse()
58            .map_err(|err| D::Error::custom(format!("{err}")))?;
59        Ok(token)
60    }
61}
62
63#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
64pub struct VisibilityToken(pub u32);
65
66impl Display for VisibilityToken {
67    fn fmt(&self, formatter: &mut Formatter<'_>) -> fmt::Result {
68        write!(formatter, "{}", self.0)
69    }
70}
71
72impl Serialize for VisibilityToken {
73    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
74    where
75        S: Serializer,
76    {
77        self.0.to_string().serialize(serializer)
78    }
79}
80
81impl<'de> Deserialize<'de> for VisibilityToken {
82    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
83    where
84        D: Deserializer<'de>,
85    {
86        let token = String::deserialize(deserializer)?;
87        let token: u32 = token.parse().map_err(|err| {
88            D::Error::custom(format!("invalid visibility token \"{token}\": {err}"))
89        })?;
90        Ok(Self(token))
91    }
92}
nuscenes_data/serializable/token.rs

nuscenes_data/serializable/
token.rs
