Trait serde::ser::SerializeTupleStruct

pub trait SerializeTupleStruct {
    type Ok;
    type Error: Error;

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

Returned from Serializer::serialize_tuple_struct.

Example use

use serde::ser::{Serialize, SerializeTupleStruct, Serializer};

struct Rgb(u8, u8, u8);

impl Serialize for Rgb {
    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        let mut ts = serializer.serialize_tuple_struct("Rgb", 3)?;
        ts.serialize_field(&self.0)?;
        ts.serialize_field(&self.1)?;
        ts.serialize_field(&self.2)?;
        ts.end()
    }
}

Example implementation

The example data format presented on the website demonstrates an implementation of SerializeTupleStruct for a basic JSON data format.

Required Associated Types

type Ok

Must match the Ok type of our Serializer.

type Error: Error

Must match the Error type of our Serializer.

Required Methods

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

Serialize a tuple struct field.

fn end(self) -> Result<Self::Ok, Self::Error>

Finish serializing a tuple struct.

Implementors

impl<Ok, Error> SerializeTupleStruct for Impossible<Ok, Error>where
    Error: Error,

type Ok = Ok

type Error = Error