lean-tui 1.1.1

Standalone TUI infoview for Lean 4 theorem prover
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use std::{error::Error as StdError, fmt, io, result::Result as StdResult};

#[derive(Debug)]
pub enum Error {
    Io(io::Error),
}

impl fmt::Display for Error {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        match self {
            Self::Io(e) => write!(f, "IO error: {e}"),
        }
    }
}

impl StdError for Error {
    fn source(&self) -> Option<&(dyn StdError + 'static)> {
        match self {
            Self::Io(e) => Some(e),
        }
    }
}

impl From<io::Error> for Error {
    fn from(e: io::Error) -> Self {
        Self::Io(e)
    }
}

pub type Result<T> = StdResult<T, Error>;