Breaking: changed `Parity` serialization to `u8`

Serializing the value as `u8` is more compact but this is a breaking
change.

`Visitor` was renamed to avoid hungarian notation and maybe allow other
integers in the future.
This commit is contained in:
Martin Habovstiak 2022-02-09 20:35:06 +01:00
parent 662843e73b
commit e6cb588a23
1 changed files with 10 additions and 10 deletions

View File

@ -1271,41 +1271,41 @@ impl BitXor for Parity {
} }
} }
/// The parity is serialized as `i32` - `0` for even, `1` for odd. /// The parity is serialized as `u8` - `0` for even, `1` for odd.
#[cfg(feature = "serde")] #[cfg(feature = "serde")]
#[cfg_attr(docsrs, doc(cfg(feature = "serde")))] #[cfg_attr(docsrs, doc(cfg(feature = "serde")))]
impl ::serde::Serialize for Parity { impl ::serde::Serialize for Parity {
fn serialize<S: ::serde::Serializer>(&self, s: S) -> Result<S::Ok, S::Error> { fn serialize<S: ::serde::Serializer>(&self, s: S) -> Result<S::Ok, S::Error> {
s.serialize_i32(self.to_i32()) s.serialize_u8(self.to_u8())
} }
} }
/// The parity is deserialized as `i32` - `0` for even, `1` for odd. /// The parity is deserialized as `u8` - `0` for even, `1` for odd.
#[cfg(feature = "serde")] #[cfg(feature = "serde")]
#[cfg_attr(docsrs, doc(cfg(feature = "serde")))] #[cfg_attr(docsrs, doc(cfg(feature = "serde")))]
impl<'de> ::serde::Deserialize<'de> for Parity { impl<'de> ::serde::Deserialize<'de> for Parity {
fn deserialize<D: ::serde::Deserializer<'de>>(d: D) -> Result<Self, D::Error> { fn deserialize<D: ::serde::Deserializer<'de>>(d: D) -> Result<Self, D::Error> {
struct I32Visitor; struct Visitor;
impl<'de> ::serde::de::Visitor<'de> for I32Visitor impl<'de> ::serde::de::Visitor<'de> for Visitor
{ {
type Value = Parity; type Value = Parity;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result { fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("32-bit integer with value 0 or 1") formatter.write_str("8-bit integer (byte) with value 0 or 1")
} }
fn visit_i32<E>(self, v: i32) -> Result<Self::Value, E> fn visit_u8<E>(self, v: u8) -> Result<Self::Value, E>
where E: ::serde::de::Error where E: ::serde::de::Error
{ {
use serde::de::Unexpected; use serde::de::Unexpected;
Parity::from_i32(v) Parity::from_u8(v)
.map_err(|_| E::invalid_value(Unexpected::Signed(v.into()), &"0 or 1")) .map_err(|_| E::invalid_value(Unexpected::Unsigned(v.into()), &"0 or 1"))
} }
} }
d.deserialize_i32(I32Visitor) d.deserialize_u8(Visitor)
} }
} }