Trait serde::ser::SerializeTupleVariant [−][src]
pub trait SerializeTupleVariant {
type Ok;
type Error: Error;
fn serialize_field<T: ?Sized>(
&mut self,
value: &T
) -> Result<(), Self::Error>
where
T: Serialize;
fn end(self) -> Result<Self::Ok, Self::Error>;
}
Expand description
Returned from Serializer::serialize_tuple_variant
.
Example use
ⓘ
use serde::ser::{Serialize, SerializeTupleVariant, Serializer};
enum E {
T(u8, u8),
U(String, u32, u32),
}
impl Serialize for E {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match *self {
E::T(ref a, ref b) => {
let mut tv = serializer.serialize_tuple_variant("E", 0, "T", 2)?;
tv.serialize_field(a)?;
tv.serialize_field(b)?;
tv.end()
}
E::U(ref a, ref b, ref c) => {
let mut tv = serializer.serialize_tuple_variant("E", 1, "U", 3)?;
tv.serialize_field(a)?;
tv.serialize_field(b)?;
tv.serialize_field(c)?;
tv.end()
}
}
}
}
Example implementation
The example data format presented on the website demonstrates an
implementation of SerializeTupleVariant
for a basic JSON data format.
Associated Types
Required methods
Serialize a tuple variant field.