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#[derive(Debug)]
pub enum Error {
IO(std::io::Error),
Parse,
Unspecified,
}
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 => f.write_str("Parse error"),
Error::Unspecified => f.write_str("Unspecified error (bad luck!)"),
}
}
}
impl std::cmp::PartialEq for Error {
fn eq(&self, other: &Self) -> bool {
match (self, other) {
(Error::IO(_), Error::IO(_)) =>
false,
(Error::Parse, Error::Parse) =>
true,
_ =>
false,
}
}
}
impl From<std::io::Error> for Error {
fn from(e: std::io::Error) -> Error {
Error::IO(e)
}
}
impl From<std::num::ParseIntError> for Error {
fn from(_: std::num::ParseIntError) -> Error {
Error::Parse
}
}
impl From<lalrpop_util::ParseError<usize, lalrpop_util::lexer::Token<'_>,
&str>> for Error
{
fn from(_: lalrpop_util::ParseError<usize, lalrpop_util::lexer::Token<'_>,
&str>) -> Error
{
Error::Parse
}
}
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