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#![doc = include_str!("./.crate-docs.md")]
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#![forbid(unsafe_code)]
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#![warn(
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    clippy::cargo,
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    missing_docs,
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    // clippy::missing_docs_in_private_items,
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    clippy::pedantic,
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    future_incompatible,
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    rust_2018_idioms,
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)]
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#![allow(
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    clippy::missing_errors_doc, // TODO clippy::missing_errors_doc
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    clippy::option_if_let_else,
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)]
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use std::io::{Read, Write};

            

        

            

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pub use ciborium;

            

        

            

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use serde::{de::DeserializeOwned, Serialize};

            

        

            

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pub use transmog;

            

        

            

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use transmog::{Format, OwnedDeserializer};

            

        

            

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/// CBOR implementor of [`Format`].

            

        

            

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#[derive(Clone, Default)]

            

        

            

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pub struct Cbor;

            

        

            

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impl<'a, T> Format<'a, T> for Cbor

            

        

            

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where

            

        

            

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    T: Serialize,

            

        

            

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{

            

        

            

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    type Error = Error;

            

        

            

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    fn serialize_into<W: Write>(&self, value: &T, writer: W) -> Result<(), Self::Error> {

            

        

            

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        ciborium::ser::into_writer(value, writer).map_err(Error::from)

            

        

            

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    }

            

        

            

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}

            

        

            

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impl<T> OwnedDeserializer<T> for Cbor

            

        

            

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where

            

        

            

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    T: Serialize + DeserializeOwned,

            

        

            

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{

            

        

            

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    fn deserialize_owned(&self, data: &[u8]) -> Result<T, Self::Error> {

            

        

            

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        self.deserialize_from(data)

            

        

            

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    }

            

        

            

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    fn deserialize_from<R: Read>(&self, reader: R) -> Result<T, Self::Error> {

            

        

            

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        ciborium::de::from_reader(reader).map_err(Error::from)

            

        

            

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    }

            

        

            

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}

            

        

            

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/// CBOR serialization and deserialization errors.

            

        

            

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#[derive(thiserror::Error, Debug)]

            

        

            

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pub enum Error {

            

        

            

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    /// A serialization-related error.

            

        

            

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    #[error("serialization error: {0}")]

            

        

            

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    Serialization(#[from] ciborium::ser::Error<std::io::Error>),

            

        

            

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    /// A deserialization-related error.

            

        

            

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    #[error("serialization error: {0}")]

            

        

            

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    Deserialization(#[from] ciborium::de::Error<std::io::Error>),

            

        

            

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}

            

        

            

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impl From<std::io::Error> for Error {

            

        

            

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    fn from(err: std::io::Error) -> Self {

            

        

            

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        Error::Serialization(ciborium::ser::Error::Io(err))

            

        

            

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    }

            

        

            

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}

            

        

            

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#[test]

            

        

            

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fn format_tests() {

            

        

            

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    transmog::test_util::test_format(&Cbor);

            

        

            

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}