http_encoding/
error.rs

1use core::fmt;
2
3use std::error;
4
5/// Error occur when trying to construct decode/encode request/response.
6#[derive(Debug)]
7#[non_exhaustive]
8pub enum EncodingError {
9    MissingFeature(FeatureError),
10    ParseAcceptEncoding,
11}
12
13impl fmt::Display for EncodingError {
14    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
15        match *self {
16            Self::MissingFeature(ref e) => write!(f, "{e}"),
17            Self::ParseAcceptEncoding => write!(f, "failed to parse Accept-Encoding header value"),
18        }
19    }
20}
21
22impl error::Error for EncodingError {}
23
24/// Error for missing required feature.
25#[derive(Debug)]
26#[non_exhaustive]
27pub enum FeatureError {
28    Br,
29    Gzip,
30    Deflate,
31    Unknown(Box<str>),
32}
33
34impl fmt::Display for FeatureError {
35    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
36        match *self {
37            Self::Br => feature_error_fmt("brotil", f),
38            Self::Gzip => feature_error_fmt("gzip", f),
39            Self::Deflate => feature_error_fmt("deflate", f),
40            Self::Unknown(ref encoding) => feature_error_fmt(encoding, f),
41        }
42    }
43}
44
45#[cold]
46#[inline(never)]
47fn feature_error_fmt(encoding: impl fmt::Display, f: &mut fmt::Formatter<'_>) -> fmt::Result {
48    write!(f, "Content-Encoding: {encoding} is not supported.")
49}
50
51impl error::Error for FeatureError {}
52
53impl From<FeatureError> for EncodingError {
54    fn from(e: FeatureError) -> Self {
55        Self::MissingFeature(e)
56    }
57}
58
59/// Error occur when decode/encode request/response body stream.
60pub type CoderError = Box<dyn error::Error + Send + Sync>;
http_encoding/error.rs

http_encoding/
error.rs
