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#[derive(Debug)]
pub enum TdlibSysError {
LogLevelOutOfBounds(u16),
Nul(usize),
UtfDecode,
CannotSetLogFile,
}
impl std::error::Error for TdlibSysError {}
impl std::convert::From<std::ffi::NulError> for TdlibSysError {
fn from(nul_err: std::ffi::NulError) -> Self {
Self::Nul(nul_err.nul_position())
}
}
impl std::fmt::Display for TdlibSysError {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
use TdlibSysError::*;
match self {
LogLevelOutOfBounds(lvl) => {
write!(f, "Log level should be less than 1024. Found {}", lvl)
}
Nul(pos) => write!(f, "String contains nul byte at pos: {}", pos),
UtfDecode => write!(f, "String is not utf8 encoded"),
CannotSetLogFile => write!(f, "Could not set log file"),
}
}
}
#[derive(Debug, thiserror::Error)]
pub enum TgError {
/// Something went wrong, when (de)serializing shit
#[error("Something went wrong, when (de)serializing shit: {}", .0)]
Serde(#[from] serde_json::Error),
/// tdlib-sys error
#[error("tdlib-sys error: {}", .0)]
TdSys(#[from] TdlibSysError),
#[error("@type must not be in your structure used as Request")]
HasTypeInJson,
#[error("@type must be string in JsonValue used as Request")]
HasNoTypeInJson,
#[error("json is invalid: {}", .0)]
InvalidJson(String),
#[error("core channel has been closed unexpectedly")]
ChannelClosed,
#[error("telegram replied with error code: {code} and message: {msg}")]
TelegramError { code: i32, msg: String },
}
impl<T> std::convert::From<crossbeam::channel::SendError<T>> for TgError {
fn from(_: crossbeam::channel::SendError<T>) -> Self {
Self::ChannelClosed
}
}
pub type Error = TgError;
pub type Result<T> = std::result::Result<T, Error>;
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