Trait hdk::prelude::holochain_serialized_bytes::serde::ser::SerializeTupleVariant[][src]

pub trait SerializeTupleVariant {
    type Ok;
    type Error: Error;
    pub fn serialize_field<T>(&mut self, value: &T) -> Result<(), Self::Error>
    where
        T: Serialize + ?Sized
;
pub fn end(self) -> Result<Self::Ok, Self::Error>; }

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

type Ok[src]

Must match the Ok type of our Serializer.

type Error: Error[src]

Must match the Error type of our Serializer.

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Required methods

pub fn serialize_field<T>(&mut self, value: &T) -> Result<(), Self::Error> where
    T: Serialize + ?Sized
[src]

Serialize a tuple variant field.

pub fn end(self) -> Result<Self::Ok, Self::Error>[src]

Finish serializing a tuple variant.

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Implementations on Foreign Types

impl<'a, W, C> SerializeTupleVariant for Compound<'a, W, C> where
    C: SerializerConfig,
    W: 'a + Write

type Ok = ()

type Error = Error

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Implementors

impl<Ok, Error> SerializeTupleVariant for Impossible<Ok, Error> where
    Error: Error
[src]

type Ok = Ok

type Error = Error

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