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type ParseError<'a> =
lalrpop_util::ParseError<usize, lalrpop_util::lexer::Token<'a>, &'a str>;
#[derive(Debug)]
pub enum Error {
IO(std::io::Error),
Parse(String),
}
impl std::error::Error for Error { }
impl std::fmt::Display for Error {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
Error::IO(e) => e.fmt(f),
Error::Parse(e) => e.fmt(f),
}
}
}
impl std::cmp::PartialEq for Error {
fn eq(&self, other: &Self) -> bool {
match (self, other) {
(Error::IO(_), Error::IO(_)) =>
false,
(Error::Parse(_), Error::Parse(_)) =>
false,
_ => false,
}
}
}
impl From<std::io::Error> for Error {
fn from(e: std::io::Error) -> Error {
Error::IO(e)
}
}
impl From<ParseError<'_>> for Error {
fn from(e: ParseError<'_>) -> Error {
Error::Parse(format!("{}", e))
}
}
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