cw_bigint/bigint/
serde.rs

1use super::{BigInt, Sign};
2
3use serde::de::{Error, Unexpected};
4use serde::{Deserialize, Deserializer, Serialize, Serializer};
5
6impl Serialize for Sign {
7    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
8    where
9        S: Serializer,
10    {
11        // Note: do not change the serialization format, or it may break
12        // forward and backward compatibility of serialized data!
13        match *self {
14            Sign::Minus => (-1i8).serialize(serializer),
15            Sign::NoSign => 0i8.serialize(serializer),
16            Sign::Plus => 1i8.serialize(serializer),
17        }
18    }
19}
20
21impl<'de> Deserialize<'de> for Sign {
22    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
23    where
24        D: Deserializer<'de>,
25    {
26        let sign = i8::deserialize(deserializer)?;
27        match sign {
28            -1 => Ok(Sign::Minus),
29            0 => Ok(Sign::NoSign),
30            1 => Ok(Sign::Plus),
31            _ => Err(D::Error::invalid_value(
32                Unexpected::Signed(sign.into()),
33                &"a sign of -1, 0, or 1",
34            )),
35        }
36    }
37}
38
39impl Serialize for BigInt {
40    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
41    where
42        S: Serializer,
43    {
44        // Note: do not change the serialization format, or it may break
45        // forward and backward compatibility of serialized data!
46        (self.sign, &self.data).serialize(serializer)
47    }
48}
49
50impl<'de> Deserialize<'de> for BigInt {
51    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
52    where
53        D: Deserializer<'de>,
54    {
55        let (sign, data) = Deserialize::deserialize(deserializer)?;
56        Ok(BigInt::from_biguint(sign, data))
57    }
58}
cw_bigint/bigint/serde.rs

cw_bigint/bigint/
serde.rs
