codee/
hybrid.rs

1use crate::{Decoder, Encoder};
2use thiserror::Error;
3
4#[derive(Debug, Error)]
5pub enum HybridCoderError<E> {
6    #[error("Not implemented: {0}")]
7    NotImplemented(&'static str),
8    #[error("Decoding error")]
9    Coder(#[from] E),
10}
11
12pub trait HybridDecoder<T, E: ?Sized> {
13    type Error;
14
15    fn is_binary_decoder() -> bool;
16
17    fn decode_str(_val: &str) -> Result<T, HybridCoderError<Self::Error>> {
18        Err(HybridCoderError::NotImplemented(
19            "You're trying to decode from a string. This codec is binary.",
20        ))
21    }
22
23    fn decode_bin(_val: &[u8]) -> Result<T, HybridCoderError<Self::Error>> {
24        Err(HybridCoderError::NotImplemented(
25            "You're trying to decode from a byte slice. This codec is a string codec.",
26        ))
27    }
28}
29
30impl<T, D> HybridDecoder<T, [u8]> for D
31where
32    D: Decoder<T, Encoded = [u8]>,
33{
34    type Error = D::Error;
35
36    #[inline(always)]
37    fn is_binary_decoder() -> bool {
38        true
39    }
40
41    fn decode_bin(val: &[u8]) -> Result<T, HybridCoderError<Self::Error>> {
42        Ok(D::decode(val)?)
43    }
44}
45
46impl<T, D> HybridDecoder<T, str> for D
47where
48    D: Decoder<T, Encoded = str>,
49{
50    type Error = D::Error;
51
52    #[inline(always)]
53    fn is_binary_decoder() -> bool {
54        false
55    }
56
57    fn decode_str(val: &str) -> Result<T, HybridCoderError<Self::Error>> {
58        Ok(D::decode(val)?)
59    }
60}
61
62pub trait HybridEncoder<T, E> {
63    type Error;
64
65    fn is_binary_encoder() -> bool;
66
67    fn encode_str(_val: &T) -> Result<String, HybridCoderError<Self::Error>> {
68        Err(HybridCoderError::NotImplemented(
69            "You're trying to encode into a string. This codec is binary.",
70        ))
71    }
72
73    fn encode_bin(_val: &T) -> Result<Vec<u8>, HybridCoderError<Self::Error>> {
74        Err(HybridCoderError::NotImplemented(
75            "You're trying to encode into a byte vec. This codec is a string codec.",
76        ))
77    }
78}
79
80impl<T, E> HybridEncoder<T, Vec<u8>> for E
81where
82    E: Encoder<T, Encoded = Vec<u8>>,
83{
84    type Error = E::Error;
85
86    #[inline(always)]
87    fn is_binary_encoder() -> bool {
88        true
89    }
90
91    fn encode_bin(val: &T) -> Result<Vec<u8>, HybridCoderError<Self::Error>> {
92        Ok(E::encode(val)?)
93    }
94}
95
96impl<T, E> HybridEncoder<T, String> for E
97where
98    E: Encoder<T, Encoded = String>,
99{
100    type Error = E::Error;
101
102    #[inline(always)]
103    fn is_binary_encoder() -> bool {
104        false
105    }
106
107    fn encode_str(val: &T) -> Result<String, HybridCoderError<Self::Error>> {
108        Ok(E::encode(val)?)
109    }
110}
codee/hybrid.rs

codee/
hybrid.rs
