organic/src/error/error.rs

use nom::error::ErrorKind;
use nom::error::ParseError;
use nom::IResult;

pub(crate) type Res<T, U> = IResult<T, U, CustomError>;

#[derive(Debug)]
pub enum CustomError {
    #[allow(dead_code)]
    Text(String),
    Static(&'static str),
    IO(std::io::Error),
    Parser(ErrorKind),
}

impl<I: std::fmt::Debug> ParseError<I> for CustomError {
    fn from_error_kind(_input: I, kind: ErrorKind) -> Self {
        CustomError::Parser(kind)
    }

    fn append(_input: I, _kind: ErrorKind, /*mut*/ other: Self) -> Self {
        // Doesn't do append like VerboseError
        other
    }
}

impl From<std::io::Error> for CustomError {
    fn from(value: std::io::Error) -> Self {
        CustomError::IO(value)
    }
}

impl From<&'static str> for CustomError {
    fn from(value: &'static str) -> Self {
        CustomError::Static(value)
    }
}