1use thiserror::Error;
2
3#[derive(Error, Debug)]
4pub enum Error {
5 #[error("a request used the CONNECT method")]
6 ConnectUnsupported,
7 #[error("a field contained invalid Unicode: {0}")]
8 CharacterEncoding(#[from] std::string::FromUtf8Error),
9 #[error("read a response when expecting a request")]
10 ExpectedRequest,
11 #[error("read a request when expecting a response")]
12 ExpectedResponse,
13 #[error("a field contained an integer value that was out of range: {0}")]
14 IntRange(#[from] std::num::TryFromIntError),
15 #[error("the mode of the message was invalid")]
16 InvalidMode,
17 #[error("the status code of a response needs to be in 100..=599")]
18 InvalidStatus,
19 #[error("IO error {0}")]
20 Io(#[from] std::io::Error),
21 #[error("a field or line was missing a necessary character 0x{0:x}")]
22 Missing(u8),
23 #[error("a URL was missing a key component")]
24 MissingUrlComponent,
25 #[error("an obs-fold line was the first line of a field section")]
26 ObsFold,
27 #[error("a field contained a non-integer value: {0}")]
28 ParseInt(#[from] std::num::ParseIntError),
29 #[error("a field was truncated")]
30 Truncated,
31 #[error("a message included the Upgrade field")]
32 UpgradeUnsupported,
33 #[error("a URL could not be parsed into components: {0}")]
34 #[cfg(feature = "read-http")]
35 UrlParse(#[from] url::ParseError),
36}
37
38#[cfg(any(
39 feature = "read-http",
40 feature = "write-http",
41 feature = "read-bhttp",
42 feature = "write-bhttp"
43))]
44pub type Res<T> = Result<T, Error>;