codeq/codec/impls/
tuple_2_impl.rs

1use std::io;
2
3use crate::Decode;
4use crate::Encode;
5
6impl<A: Encode, B: Encode> Encode for (A, B) {
7    fn encode<W: io::Write>(&self, mut w: W) -> Result<usize, io::Error> {
8        let mut n = 0;
9        n += self.0.encode(&mut w)?;
10        n += self.1.encode(&mut w)?;
11        Ok(n)
12    }
13}
14
15impl<A: Decode, B: Decode> Decode for (A, B) {
16    fn decode<R: io::Read>(mut r: R) -> Result<Self, io::Error> {
17        let a = A::decode(&mut r)?;
18        let b = B::decode(&mut r)?;
19        Ok((a, b))
20    }
21}
22
23#[cfg(test)]
24mod tests {
25    use std::io;
26
27    use crate::Decode;
28    use crate::Encode;
29
30    #[test]
31    fn test_tuple_2_codec() -> Result<(), io::Error> {
32        let v = (1u64, 2u32);
33        let mut buf = Vec::new();
34        let n = v.encode(&mut buf)?;
35        assert_eq!(n, buf.len());
36        assert_eq!(buf.len(), 8 + 4);
37
38        let b = <(u64, u32)>::decode(&mut buf.as_slice())?;
39        assert_eq!(v, b);
40
41        Ok(())
42    }
43}
codeq/codec/impls/tuple_2_impl.rs

codeq/codec/impls/
tuple_2_impl.rs
