use std::error::Error;
use std::fmt;
#[derive(Debug)]
pub struct ParseError {
message: String,
}
impl ParseError {
pub fn new(msg: &str) -> ParseError {
ParseError {
message: msg.to_string(),
}
}
}
impl fmt::Display for ParseError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "parse error: {}", self.message)
}
}
impl Error for ParseError {
fn description(&self) -> &str {
&self.message
}
}