use failure_derive::*;
#[derive(Debug, PartialEq, Fail)]
#[fail(display = "Err on line {}: {}", line, err)]
pub struct LineErr {
pub line: usize,
pub err: TokErr,
}
#[derive(Debug, PartialEq, Fail)]
pub enum TokErr {
#[fail(display = "{}", 0)]
Mess(String),
#[fail(display = "Not Set : {}", 0)]
NotSet(&'static str),
#[fail(display = "{}", 0)]
ParseErr(gobble::ParseError),
#[fail(display = "Cannot parse int")]
ParseIntErr,
#[fail(display = "No Token")]
NoToken,
#[fail(display = "Cannot work for negative time")]
NegativeTime,
#[fail(display = "Processing errors {:?}", 0)]
Lines(Vec<LineErr>),
}
impl TokErr {
pub fn on_line(self, n: usize) -> LineErr {
LineErr { line: n, err: self }
}
}
impl From<&str> for TokErr {
fn from(s: &str) -> Self {
TokErr::Mess(s.to_string())
}
}
impl From<String> for TokErr {
fn from(s: String) -> Self {
TokErr::Mess(s.to_string())
}
}
impl From<std::num::ParseIntError> for TokErr {
fn from(_: std::num::ParseIntError) -> Self {
TokErr::ParseIntErr
}
}
impl From<gobble::ParseError> for TokErr {
fn from(e: gobble::ParseError) -> Self {
TokErr::ParseErr(e)
}
}