deser_core/foreign_impls/
bytes.rs

1//! `Bytes` and `BytesMut` of `bytes`.
2//!
3//! They are serialized like `Vec<u8>`: as bytes, which formats without
4//! native bytes represent as strings (base64 by default).  When
5//! deserialized, they accept what `Vec<u8>` accepts.
6use ::bytes::{Bytes, BytesMut};
7use alloc::vec::Vec;
8
9use crate::State;
10use crate::adapters::bytes::{BytesBufImpl, encoding_adapter};
11use crate::de::impls::{Via, deserialize_via};
12use crate::de::{Deserialize, SinkHandle};
13use crate::error::Error;
14use crate::event::Atom;
15use crate::ser::{Chunk, Serialize, plain_atom};
16
17macro_rules! byte_buffer {
18    ($($ty:ty => $convert:expr;)*) => {
19        $(
20            impl Serialize for $ty {
21                begin_without_finish!();
22                plain_atom!(|v| Atom::Bytes(crate::Bytes::new(&v[..])));
23
24                fn serialize(&self, _state: &mut State) -> Result<Chunk<'_>, Error> {
25                    Ok(Chunk::Atom(Atom::Bytes(crate::Bytes::new(&self[..]))))
26                }
27            }
28
29            impl Via<Vec<u8>> for $ty {
30                #[inline]
31                fn convert(value: Vec<u8>) -> Result<Self, Error> {
32                    Ok($convert(value))
33                }
34            }
35
36            deserialize_via! {
37                [] $ty => Vec<u8>;
38            }
39
40            impl BytesBufImpl for $ty {
41                #[inline]
42                fn bytes(&self) -> &[u8] {
43                    self
44                }
45
46                #[inline]
47                fn from_vec(bytes: Vec<u8>) -> Result<Self, Error> {
48                    Ok($convert(bytes))
49                }
50
51                #[inline]
52                fn deserialize_into<'a, 'de>(out: &'a mut Option<Self>, state: &mut State) -> SinkHandle<'a, 'de> {
53                    Deserialize::deserialize_into(out, state)
54                }
55            }
56
57            encoding_adapter!([] $ty);
58        )*
59    };
60}
61
62byte_buffer! {
63    Bytes => Bytes::from;
64    // converting from `Bytes` does not copy as the buffer is unique
65    BytesMut => |value| BytesMut::from(Bytes::from(value));
66}
deser_core/foreign_impls/bytes.rs

deser_core/foreign_impls/
bytes.rs
