[−][src]Crate rmp_serialize
Examples
Let's try to encode a tuple of int and string.
extern crate rmp_serialize; extern crate rustc_serialize; use rustc_serialize::Encodable; use rmp_serialize::Encoder; fn main() { let val = (42u8, "the Answer"); // The encoder borrows the bytearray buffer. let mut buf = [0u8; 13]; val.encode(&mut Encoder::new(&mut &mut buf[..])); assert_eq!([0x92, 0x2a, 0xaa, 0x74, 0x68, 0x65, 0x20, 0x41, 0x6e, 0x73, 0x77, 0x65, 0x72], buf); }
Now we have an encoded buffer, which we can decode the same way:
extern crate rmp_serialize; extern crate rustc_serialize; use rustc_serialize::Decodable; use rmp_serialize::Decoder; fn main() { let buf = [0x92, 0x2a, 0xaa, 0x74, 0x68, 0x65, 0x20, 0x41, 0x6e, 0x73, 0x77, 0x65, 0x72]; let mut decoder = Decoder::new(&buf[..]); let res: (u8, String) = Decodable::decode(&mut decoder).unwrap(); assert_eq!((42u8, "the Answer".to_string()), res); }
RMP also allows to automatically serialize/deserialize custom structures using rustc_serialize reflection. To enable this feature, derive RustcEncodable and RustcDecodable attributes as shown in the following example:
extern crate rmp_serialize; extern crate rustc_serialize; use rustc_serialize::{Encodable, Decodable}; use rmp_serialize::{Encoder, Decoder}; #[derive(RustcEncodable, RustcDecodable, PartialEq, Debug)] struct Custom { id: u32, key: String, } fn main() { let val = Custom { id: 42u32, key: "the Answer".to_string() }; let mut buf = [0u8; 13]; val.encode(&mut Encoder::new(&mut &mut buf[..])); assert_eq!([0x92, 0x2a, 0xaa, 0x74, 0x68, 0x65, 0x20, 0x41, 0x6e, 0x73, 0x77, 0x65, 0x72], buf); // Now try to unpack the buffer into the initial struct. let mut decoder = Decoder::new(&buf[..]); let res: Custom = Decodable::decode(&mut decoder).ok().unwrap(); assert_eq!(val, res); }
Re-exports
pub use decode::Decoder; |
pub use encode::Encoder; |
Modules
decode | |
encode |