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https://github.com/zaphar/ucg.git
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Jeremy Wall
e256abfee6
Most of the tests do not yet pass and the main.rs doesn't compile but we are snapshotting here so we can start fixing unit tests before we hook directly into the main.rs.
63 lines
1.5 KiB
Rust
63 lines
1.5 KiB
Rust
// Copyright 2019 Jeremy Wall
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use std::convert::From;
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use std::fmt;
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use std::fmt::Display;
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use crate::ast::Position;
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#[derive(Debug)]
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pub struct Error {
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message: String,
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pos: Option<Position>,
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}
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impl Error {
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pub fn new(msg: String, pos: Position) -> Self {
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Self {
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message: msg,
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pos: Some(pos),
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}
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}
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}
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impl From<regex::Error> for Error {
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fn from(e: regex::Error) -> Self {
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Error {
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message: format!("{}", e),
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pos: None,
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}
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}
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}
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impl From<std::io::Error> for Error {
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fn from(e: std::io::Error) -> Self {
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Error {
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message: format!("{}", e),
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pos: None,
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}
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}
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}
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impl Display for Error {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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if let Some(ref pos) = self.pos {
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write!(f, "{} at {}", self.message, pos)
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} else {
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write!(f, "{}", self.message)
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}
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}
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}
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impl std::error::Error for Error {} |