spectral-m2 1.2.2

A syntax-aware terminal shell for Macaulay2
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use std::io;

/// An operational failure while communicating with M2 or driving the terminal.
/// Syntax failures are not here: they are a verdict about the user's input
/// (a parser verdict), not a fault in the session.
#[derive(Debug, thiserror::Error)]
pub enum Error {
    #[error(transparent)]
    System(#[from] io::Error),
    #[error(transparent)]
    Serialization(#[from] serde_json::Error),
    #[error(transparent)]
    Theme(#[from] toml::de::Error),
    #[error("M2 process exited: {0}")]
    Process(String),
    #[error("Macaulay2 exited: {0}")]
    Exited(std::process::ExitStatus),
    #[error("Computation cancelled")]
    Cancelled,
    #[error("timed out after {0} seconds")]
    Timeout(u64),
}

/// The result type shared by Spectral's fallible operations.
pub type Result<T> = std::result::Result<T, Error>;