serene-rust-implementation/bootstrap/src/errors.rs

35 lines
921 B
Rust

/** Serene --- Yet an other Lisp
*
* Copyright (c) 2020 Sameer Rahmani <lxsameer@gnu.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
pub trait IError {
fn message(&self) -> &str;
}
pub struct Error {
msg: String,
}
impl IError for Error {
fn message(&self) -> &str {
&self.msg
}
}
pub fn err(msg: String) -> Error {
Error { msg }
}