pub fn encode_to_vec<T: CanonicalEncode + ?Sized>(
value: &T,
) -> Result<Vec<u8>, CodecError>Expand description
Encodes a value into an owned byte vector.
Examples found in repository?
examples/protocol_message.rs (line 64)
58fn main() -> Result<(), CodecError> {
59 let message = ProtocolMessage {
60 id: 42,
61 kind: MessageKind::Data(vec![1, 2, 3]),
62 };
63
64 let encoded = encode_to_vec(&message)?;
65 assert_eq!(encoded, [42, 0, 0, 0, 1, 3, 0, 0, 0, 1, 2, 3]);
66 assert_eq!(
67 decode_from_slice_exact::<ProtocolMessage>(&encoded)?,
68 message
69 );
70
71 let err = decode_from_slice_exact::<MessageKind>(&[9]).unwrap_err();
72 assert_eq!(err.kind(), CodecErrorKind::InvalidValue);
73 assert!(err.message().contains("unknown MessageKind tag"));
74
75 Ok(())
76}More examples
examples/basic_encoding.rs (line 7)
5fn main() -> Result<(), CodecError> {
6 let port = 8080u16;
7 let encoded = encode_to_vec(&port)?;
8 assert_eq!(encoded, [0x90, 0x1f]);
9 assert_eq!(decode_from_slice_exact::<u16>(&encoded)?, port);
10
11 let text = "api";
12 let encoded = encode_to_vec(text)?;
13 assert_eq!(encoded, [3, 0, 0, 0, b'a', b'p', b'i']);
14 assert_eq!(decode_from_slice_exact::<String>(&encoded)?, text);
15
16 let (value, remaining) = decode_from_slice::<u8>(&[1, 2])?;
17 assert_eq!(value, 1);
18 assert_eq!(remaining, 1);
19
20 let err = decode_from_slice_exact::<u8>(&[1, 2]).unwrap_err();
21 assert_eq!(err.kind(), CodecErrorKind::TrailingBytes);
22
23 Ok(())
24}