transformable/impls/
vec.rs

1use super::*;
2
3impl Transformable for ::std::vec::Vec<u8> {
4  type Error = BytesTransformError;
5
6  fn encode(&self, dst: &mut [u8]) -> Result<usize, Self::Error> {
7    encode_bytes(self.as_ref(), dst).map_err(|_| Self::Error::EncodeBufferTooSmall)
8  }
9
10  /// Encodes the value into the given writer.
11  ///
12  /// # Note
13  /// The implementation of this method is not optimized, which means
14  /// if your writer is expensive (e.g. [`TcpStream`](std::net::TcpStream), [`File`](std::fs::File)),
15  /// it is better to use a [`BufWriter`](std::io::BufWriter)
16  /// to wrap your orginal writer to cut down the number of I/O times.
17  #[cfg(feature = "std")]
18  fn encode_to_writer<W: std::io::Write>(&self, dst: &mut W) -> std::io::Result<usize> {
19    encode_bytes_to(self.as_ref(), dst)
20  }
21
22  /// Encodes the value into the given async writer.
23  ///
24  /// # Note
25  /// The implementation of this method is not optimized, which means
26  /// if your writer is expensive (e.g. `TcpStream`, `File`),
27  /// it is better to use a [`BufWriter`](futures_util::io::BufWriter)
28  /// to wrap your orginal writer to cut down the number of I/O times.
29  #[cfg(feature = "async")]
30  async fn encode_to_async_writer<W: futures_util::io::AsyncWrite + Send + Unpin>(
31    &self,
32    dst: &mut W,
33  ) -> std::io::Result<usize> {
34    encode_bytes_to_async(self.as_ref(), dst).await
35  }
36
37  fn encoded_len(&self) -> usize {
38    encoded_bytes_len(self.as_ref())
39  }
40
41  fn decode(src: &[u8]) -> Result<(usize, Self), Self::Error>
42  where
43    Self: Sized,
44  {
45    decode_bytes(src).map_err(|_| Self::Error::NotEnoughBytes)
46  }
47
48  /// Decodes the value from the given reader.
49  ///
50  /// # Note
51  /// The implementation of this method is not optimized, which means
52  /// if your reader is expensive (e.g. [`TcpStream`](std::net::TcpStream), [`File`](std::fs::File)),
53  /// it is better to use a [`BufReader`](std::io::BufReader)
54  /// to wrap your orginal reader to cut down the number of I/O times.
55  #[cfg(feature = "std")]
56  fn decode_from_reader<R: std::io::Read>(src: &mut R) -> std::io::Result<(usize, Self)>
57  where
58    Self: Sized,
59  {
60    decode_bytes_from(src)
61  }
62
63  /// Decodes the value from the given async reader.
64  ///
65  /// # Note
66  /// The implementation of this method is not optimized, which means
67  /// if your reader is expensive (e.g. `TcpStream`, `File`),
68  /// it is better to use a [`BufReader`](futures_util::io::BufReader)
69  /// to wrap your orginal reader to cut down the number of I/O times.
70  #[cfg(feature = "async")]
71  async fn decode_from_async_reader<R: futures_util::io::AsyncRead + Send + Unpin>(
72    src: &mut R,
73  ) -> std::io::Result<(usize, Self)>
74  where
75    Self: Sized,
76  {
77    decode_bytes_from_async(src).await
78  }
79}
80
81test_transformable!(Vec<u8> => test_vec_transformable(std::vec![1, 2, 3, 4, 5, 6, 7, 8, 9, 0]));