Maraiah/src/durandal/err.rs

//! Error handling.

pub use failure::{err_msg, Error, Fail};

use crate::durandal::traits::PrimInt;
use std::fmt;

#[derive(PartialEq)]
pub struct ReprError<T>(pub T) where T: PrimInt;

impl<T> Fail for ReprError<T> where T: PrimInt {}

impl<T> fmt::Display for ReprError<T> where T: PrimInt
{
   fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result
   {
      write!(f, "representation error (got {})", self.0)
   }
}

impl<T> fmt::Debug for ReprError<T> where T: PrimInt
{
   fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result
   {
      fmt::Display::fmt(self, f)
   }
}

pub type ResultS<T> = Result<T, Error>;

pub fn bad_flag() -> Error
{
   err_msg("bad flag")
}

// EOF