41 lines
1.3 KiB
Rust
41 lines
1.3 KiB
Rust
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/* Pirate - A command-line arrrrguments parser, written in Rust.
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* Copyright (C) 2015 Zachary Dziura
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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use std::error::Error;
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use std::fmt::{Display, Formatter, Result};
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#[derive(Debug)]
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pub enum ErrorKind {
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InvalidOption,
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MissingArgument,
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}
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impl Error for ErrorKind {
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fn description(&self) -> &str {
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match *self {
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ErrorKind::InvalidOption => "An invalid option was passed to the program",
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ErrorKind::MissingArgument => "A required argument is missing",
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}
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}
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}
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impl Display for ErrorKind {
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fn fmt(&self, f: &mut Formatter) -> Result {
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write!(f, "{}", self.description())
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}
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}
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