# Trait serde::ser::SerializeTuple

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

        fn serialize_element<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`.

## Example use

ⓘ

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

    impl<A, B, C> Serialize for (A, B, C)
    where
        A: Serialize,
        B: Serialize,
        C: Serialize,
    {
        fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
        where
            S: Serializer,
        {
            let mut tup = serializer.serialize_tuple(3)?;
            tup.serialize_element(&self.0)?;
            tup.serialize_element(&self.1)?;
            tup.serialize_element(&self.2)?;
            tup.end()
        }
    }

ⓘ

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

    impl<T> Serialize for [T; 16]
    where
        T: Serialize,
    {
        fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
        where
            S: Serializer,
        {
            let mut seq = serializer.serialize_tuple(16)?;
            for element in self {
                seq.serialize_element(element)?;
            }
            seq.end()
        }
    }

## Example implementation

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

## Required Associated Types

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#### type Ok

Must match the `Ok` type of our `Serializer`.

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#### type Error: Error

Must match the `Error` type of our `Serializer`.

## Required Methods

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

Serialize a tuple element.

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

Finish serializing a tuple.

## Implementors

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### impl<Ok, Error> SerializeTuple for Impossible<Ok, Error> where
Error: Error,

#### type Ok = Ok

#### type Error = Error