fn try_from()

in src/common/headers.rs [49:67]

• 19 lines of code
• 3 McCabe index (conditional complexity)

    fn try_from(string: &[u8]) -> Result<Self, RequestError> {
        if let Ok(mut utf8_string) = String::from_utf8(string.to_vec()) {
            utf8_string.make_ascii_lowercase();
            match utf8_string.trim() {
                "content-length" => Ok(Self::ContentLength),
                "content-type" => Ok(Self::ContentType),
                "expect" => Ok(Self::Expect),
                "transfer-encoding" => Ok(Self::TransferEncoding),
                "server" => Ok(Self::Server),
                "accept" => Ok(Self::Accept),
                "accept-encoding" => Ok(Self::AcceptEncoding),
                invalid_key => Err(RequestError::HeaderError(HttpHeaderError::UnsupportedName(
                    invalid_key.to_string(),
                ))),
            }
        } else {
            Err(RequestError::InvalidRequest)
        }
    }