transmog_cbor/
lib.rs

1#![doc = include_str!("./.crate-docs.md")]
2#![forbid(unsafe_code)]
3#![warn(
4    clippy::cargo,
5    missing_docs,
6    // clippy::missing_docs_in_private_items,
7    clippy::pedantic,
8    future_incompatible,
9    rust_2018_idioms,
10)]
11#![allow(
12    clippy::missing_errors_doc, // TODO clippy::missing_errors_doc
13    clippy::option_if_let_else,
14)]
15
16use std::io::{Read, Write};
17
18pub use ciborium;
19use serde::{de::DeserializeOwned, Serialize};
20pub use transmog;
21use transmog::{Format, OwnedDeserializer};
22
23/// CBOR implementor of [`Format`].
24#[derive(Clone, Default)]
25pub struct Cbor;
26
27impl<'a, T> Format<'a, T> for Cbor
28where
29    T: Serialize,
30{
31    type Error = Error;
32
33    fn serialize_into<W: Write>(&self, value: &T, writer: W) -> Result<(), Self::Error> {
34        ciborium::ser::into_writer(value, writer).map_err(Error::from)
35    }
36}
37
38impl<T> OwnedDeserializer<T> for Cbor
39where
40    T: Serialize + DeserializeOwned,
41{
42    fn deserialize_owned(&self, data: &[u8]) -> Result<T, Self::Error> {
43        self.deserialize_from(data)
44    }
45
46    fn deserialize_from<R: Read>(&self, reader: R) -> Result<T, Self::Error> {
47        ciborium::de::from_reader(reader).map_err(Error::from)
48    }
49}
50
51/// CBOR serialization and deserialization errors.
52#[derive(thiserror::Error, Debug)]
53pub enum Error {
54    /// A serialization-related error.
55    #[error("serialization error: {0}")]
56    Serialization(#[from] ciborium::ser::Error<std::io::Error>),
57    /// A deserialization-related error.
58    #[error("serialization error: {0}")]
59    Deserialization(#[from] ciborium::de::Error<std::io::Error>),
60}
61
62impl From<std::io::Error> for Error {
63    fn from(err: std::io::Error) -> Self {
64        Error::Serialization(ciborium::ser::Error::Io(err))
65    }
66}
67
68#[test]
69fn format_tests() {
70    transmog::test_util::test_format(&Cbor);
71}
transmog_cbor/lib.rs

transmog_cbor/
lib.rs
