diny_core 0.0.2

Core functionality of the diny framework
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

use core::{pin::Pin, task::{Context, Poll}};
use futures::{AsyncRead, AsyncBufRead};
use crate::backend::{Decode, FormatDecode, FormatDeserialize};

/// Implements a [deserialization future](FormatDeserialize) for any
/// [decoder](Decode).
pub struct DeserializeExact<'r, F, R, Dta, Dec>
where
    F: FormatDecode,
    Dec: Decode<Format=F, Data=Dta>,
{
    format: &'r F,
    reader: &'r mut R,
    decode: Dec,
}

impl<'r, F, R, Dta, Dec> DeserializeExact<'r, F, R, Dta, Dec>
where
    F: FormatDecode,
    Dec: Decode<Format=F, Data=Dta>,
{
    pub fn new(format: &'r F, reader: &'r mut R, decode: Dec) -> Self {
        Self {
            format,
            reader,
            decode,
        }
    }
}

impl<'r, F, R, Dta, Dec> Unpin for DeserializeExact<'r, F, R, Dta, Dec>
where
    F: FormatDeserialize<'r>,
    R: Unpin,
    Dec: Decode<Format=F, Data=Dta>,
{}

impl<'r, F, R, Dta, Dec> core::future::Future for DeserializeExact<'r, F, R, Dta, Dec>
where
    F: FormatDeserialize<'r>,
    R: AsyncRead + AsyncBufRead + Unpin,
    Dec: Decode<Format=F, Data=Dta>,
{
    type Output = Result<Dta, F::Error>;

    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
        let this = &mut *self;
        this.decode.poll_decode(this.format, this.reader, cx)
    }
}