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use thiserror::Error;
#[derive(Error, Debug)]
pub enum Error {
#[error("a request used the CONNECT method")]
ConnectUnsupported,
#[error("a field contained invalid Unicode: {0}")]
CharacterEncoding(#[from] std::string::FromUtf8Error),
#[error("a field contained an integer value that was out of range: {0}")]
IntRange(#[from] std::num::TryFromIntError),
#[error("the mode of the message was invalid")]
InvalidMode,
#[error("IO error {0}")]
Io(#[from] std::io::Error),
#[error("a field or line was missing a necessary character 0x{0:x}")]
Missing(u8),
#[error("a URL was missing a key component")]
MissingUrlComponent,
#[error("an obs-fold line was the first line of a field section")]
ObsFold,
#[error("a field contained a non-integer value: {0}")]
ParseInt(#[from] std::num::ParseIntError),
#[error("a field was truncated")]
Truncated,
#[error("a message included the Upgrade field")]
UpgradeUnsupported,
#[error("a URL could not be parsed into components: {0}")]
#[cfg(feature = "read-http")]
UrlParse(#[from] url::ParseError),
}
#[cfg(any(
feature = "read-http",
feature = "write-http",
feature = "read-bhttp",
feature = "write-bhttp"
))]
pub type Res<T> = Result<T, Error>;