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https://github.com/neondatabase/neon.git
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a72707b8cb
Commit message copied below: * Allow LeSer/BeSer impls missing Serialize/Deserialize Currently, using `LeSer` or `BeSer` requires that the type implements both `Serialize` and `DeserializeOwned`, even if we're only using the trait for one of those functionalities. Moving the bounds to the methods gives the convenience of the traits without requiring unnecessary derives. * Remove unused #[derive(Serialize/Deserialize)] This should hopefully reduce compile times - if only by a little bit. Some of these were already unused (we weren't using LeSer/BeSer for the types), but most are have *become* unused with the change to LeSer/BeSer.
42 lines
1.0 KiB
Rust
42 lines
1.0 KiB
Rust
use bytes::{Buf, BytesMut};
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use hex_literal::hex;
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use serde::Deserialize;
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use std::io::Read;
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use zenith_utils::bin_ser::LeSer;
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#[derive(Debug, PartialEq, Deserialize)]
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pub struct HeaderData {
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magic: u16,
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info: u16,
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tli: u32,
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pageaddr: u64,
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len: u32,
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}
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// A manual implementation using BytesMut, just so we can
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// verify that we decode the same way.
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pub fn decode_header_data(buf: &mut BytesMut) -> HeaderData {
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HeaderData {
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magic: buf.get_u16_le(),
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info: buf.get_u16_le(),
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tli: buf.get_u32_le(),
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pageaddr: buf.get_u64_le(),
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len: buf.get_u32_le(),
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}
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}
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pub fn decode2<R: Read>(reader: &mut R) -> HeaderData {
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HeaderData::des_from(reader).unwrap()
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}
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#[test]
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fn test1() {
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let raw1 = hex!("8940 7890 5534 7890 1289 5379 8378 7893 4207 8923 4712 3218");
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let mut buf1 = BytesMut::from(&raw1[..]);
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let mut buf2 = &raw1[..];
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let dec1 = decode_header_data(&mut buf1);
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let dec2 = decode2(&mut buf2);
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assert_eq!(dec1, dec2);
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assert_eq!(buf1, buf2);
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}
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