forked from bonsai/harakit
96 lines
3.7 KiB
Rust
96 lines
3.7 KiB
Rust
/*
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* Copyright (c) 2023 Emma Tebibyte <emma@tebibyte.media>
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*
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* This program is free software: you can redistribute it and/or modify it under
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* the terms of the GNU Affero General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see https://www.gnu.org/licenses/.
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*
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* This file incorporates work covered by the following copyright and permission
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* notice:
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* The Clear BSD License
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*
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* Copyright © 2017-2023 David Wildasin
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted (subject to the limitations in the disclaimer
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* below) provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions, and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
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* BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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use std::{ error, fmt };
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use crate::ErrorKind::{ self, * };
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/// A basic error type for [`Parser`](struct.Parser.html)
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#[derive(Debug, Eq, PartialEq)]
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pub struct Error {
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culprit: char,
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kind: ErrorKind,
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}
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impl Error {
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/// Creates a new error using a known kind and the character that caused the
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/// issue.
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pub fn new(kind: ErrorKind, culprit: char) -> Self {
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Self { culprit, kind }
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}
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/// Returns the [`ErrorKind`](enum.ErrorKind.html) for this error.
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pub fn kind(self) -> ErrorKind {
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self.kind
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}
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}
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impl fmt::Display for Error {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match self.kind {
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MissingArgument => write!(
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f,
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"option requires an argument -- {:?}",
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self.culprit,
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),
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UnknownOption => write!(f, "unknown option -- {:?}", self.culprit),
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}
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}
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}
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impl error::Error for Error {
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fn source(&self) -> Option<&(dyn error::Error + 'static)> {
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None
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}
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}
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