# Trait serde::ser::SerializeTupleStruct

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    pub trait SerializeTupleStruct {
        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_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

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

Serialize a tuple struct field.

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

Finish serializing a tuple struct.

## Implementors

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

#### type Ok = Ok

#### type Error = Error