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use std::io; quick_error! { #[derive(Debug)] pub enum Error { ThreadSend { display("thread aborted") } Aborted { display("aborted") } Gifsicle { display("gifsicle failure") } Gif(err: gif::EncodingError) { display("GIF encoding error: {}", err) } NoFrames { display("Found no usable frames to encode") } Io(err: io::Error) { from() display("I/O: {}", err) } PNG(msg: String) { display("{}", msg) } WrongSize(msg: String) { display("{}", msg) from(e: resize::Error) -> (e.to_string()) } Quant(liq: imagequant::liq_error) { from() display("pngquant error: {}", liq) } Pal(gif: gif_dispose::Error) { from() display("gif dispose error: {}", gif) } } } pub type CatResult<T, E = Error> = Result<T, E>; impl From<gif::EncodingError> for Error { #[cold] fn from(err: gif::EncodingError) -> Self { match err { gif::EncodingError::Io(err) => err.into(), other => Error::Gif(other), } } } impl<T> From<crossbeam_channel::SendError<T>> for Error { #[cold] fn from(_: crossbeam_channel::SendError<T>) -> Self { Self::ThreadSend } } impl From<crossbeam_channel::RecvError> for Error { #[cold] fn from(_: crossbeam_channel::RecvError) -> Self { Self::Aborted } }