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Roman
35aeabd3ff
* move src/codec.rs -> src/codec/mod.rs
* Move traits Encoder and Decoder from src/framed_{read|write}.rs into src/codec/{encoder,decoder}.rs
* Move LinesCodec and BytesCodec from src/codecs.rs into src/codec/{lines,bytes}_codec.rs
24 lines
800 B
Rust
24 lines
800 B
Rust
use std::io;
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use bytes::BytesMut;
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/// Trait of helper objects to write out messages as bytes, for use with
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/// `FramedWrite`.
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pub trait Encoder {
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/// The type of items consumed by the `Encoder`
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type Item;
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/// The type of encoding errors.
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///
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/// `FramedWrite` requires `Encoder`s errors to implement `From<io::Error>`
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/// in the interest letting it return `Error`s directly.
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type Error: From<io::Error>;
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/// Encodes a frame into the buffer provided.
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///
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/// This method will encode `item` into the byte buffer provided by `dst`.
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/// The `dst` provided is an internal buffer of the `Framed` instance and
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/// will be written out when possible.
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fn encode(&mut self, item: Self::Item, dst: &mut BytesMut)
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-> Result<(), Self::Error>;
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}
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