quickdash/
error.rs

1/* Copyright [2021] [Cerda]
2 *
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *    http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16/// Enum representing each way the appication can fail.
17#[derive(Debug, Clone, Copy, Hash, PartialEq, Eq)]
18pub enum Error {
19	/// No errors occured, everything executed correctly.
20	NoError,
21	/// Parsing of command-line options failed.
22	OptionParsingError,
23	/// Selected and saved hash lengths differ.
24	HashLengthDiffers,
25	/// Parsing the hashes file failed.
26	HashesFileParsingFailure,
27	/// The specified amount of files do not match.
28	NFilesDiffer(i32),
29}
30
31impl Error {
32	/// Get the executable exit value from an `Error` instance.
33	pub fn exit_value(&self) -> i32 {
34		match *self {
35			Error::NoError => 0,
36			Error::OptionParsingError => 1,
37			Error::HashLengthDiffers => 2,
38			Error::HashesFileParsingFailure => 3,
39			Error::NFilesDiffer(i) => i + 3,
40		}
41	}
42}
43
44impl From<i32> for Error {
45	fn from(i: i32) -> Self {
46		match i {
47			0 => Error::NoError,
48			1 => Error::OptionParsingError,
49			2 => Error::HashLengthDiffers,
50			3 => Error::HashesFileParsingFailure,
51			i => Error::NFilesDiffer(i - 3),
52		}
53	}
54}
quickdash/error.rs

quickdash/
error.rs
