2 releases

0.1.1	Dec 26, 2020
0.1.0	Jun 28, 2020

#2604 in Parser implementations

MIT/Apache

105KB
2.5K SLoC

Cbor enhanced library

Inspired by cbor_event but making use of lifetimes to support zero copy deserialization. In addition several iana tags are supported but need to be activated via feature flags.

Supported tags

Tag	Description	Implementation notes
64-82	Typed arrays	Either direct transmution for the brave or safe parsing for the cautious
80, 81, 82, 85, 86	Typed float arrays	Either direct transmution for the brave or safe parsing for the cautious, f16 is only supported in big-endian format
260, 261	Network address	Direct de/serialization of network address
0, 1, 1001	DateTime	Directly de/serialize chrono date time types with defined precision
2, 3	BigInt, BigUint	Directly de/serialize num_bigint BigInt, BigUint
37	Uuid	Directly de/serialize uuid using uuid crate
35	Regex	Directly de/serialize regex using regex crate
36	Mime type	Directly de/serialize mime types using mime crate
103	Geographic Coordinate	Directly de/serialize geographic coordinates

Limits

Infinite strings and bytes are not supported since they require allocation
f16 LE typed array not supported

Features

Zero-Copy deserialization
Support for various iana tags
custom derive macro for serializing structs

Derive macro

Deriving cbor_protocol enables you to serialize/deserialize a struct into a Map<uint,Value> Where the keys for the map are the property id's. The derive macro requires nightly for posiioned compile error reporting.

#[derive(cbor_protocol, Clone, Eq, PartialEq, Debug)]
#[reserved(5, 6, 7)]
struct BlaStruct {
    #[id(1)]
    #[default("none")]
    name: String,
    #[id(2)]
    value: i32,
}

License

MIT and Apache

Dependencies

~2.4–4MB
~73K SLoC