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use std::error::Error as StdError;
use std::fmt;
use std::num::TryFromIntError;
#[derive(Debug)]
pub enum Error {
Io(std::io::Error),
ParseRange(ParseRangeError),
TryFromInt(TryFromIntError),
Config(String),
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
Self::Io(io) => write!(f, "{}", io),
Self::ParseRange(pr) => write!(f, "{}", pr),
Self::TryFromInt(tfi) => write!(f, "{}", tfi),
Self::Config(c) => write!(f, "{}", c),
}
}
}
impl StdError for Error {}
impl From<std::io::Error> for Error {
fn from(e: std::io::Error) -> Self {
Self::Io(e)
}
}
impl From<ParseRangeError> for Error {
fn from(e: ParseRangeError) -> Self {
Self::ParseRange(e)
}
}
impl From<TryFromIntError> for Error {
fn from(e: TryFromIntError) -> Self {
Self::TryFromInt(e)
}
}
#[derive(Debug)]
pub struct ParseRangeError {
source_str: String,
}
impl ParseRangeError {
pub fn new(source_str: &str) -> Self {
ParseRangeError {
source_str: String::from(source_str),
}
}
}
impl fmt::Display for ParseRangeError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", self.source_str)
}
}
impl StdError for ParseRangeError {}
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