rair_env/
err.rs

1/*
2 * err.rs: error handling for renv.
3 * Copyright (C) 2019  Oddcoder
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * GNU Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public License
15 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
16 */
17use std::fmt;
18
19#[derive(Debug, PartialEq)]
20pub enum EnvErr {
21    NotFound,
22    DifferentType,
23    CbFailed,
24    AlreadyExist,
25}
26
27impl fmt::Display for EnvErr {
28    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
29        match self {
30            EnvErr::NotFound => write!(f, "Environment variable not found."),
31            EnvErr::DifferentType => write!(f, "Environment variable has different type."),
32            EnvErr::CbFailed => write!(f, "Call back failed."),
33            EnvErr::AlreadyExist => write!(f, "Environment variable already exist."),
34        }
35    }
36}
rair_env/err.rs

rair_env/
err.rs
