opening_hours_syntax/
error.rs

1use std::fmt;
2
3use crate::parser::Rule;
4
5pub type Result<T> = std::result::Result<T, Error>;
6
7#[derive(Clone, Debug)]
8pub enum Error {
9    Parser(Box<pest::error::Error<Rule>>),
10    Unsupported(&'static str),
11    Overflow { value: String, expected: String },
12    InvalidExtendTime { hour: u8, minutes: u8 },
13}
14
15impl From<pest::error::Error<Rule>> for Error {
16    #[inline]
17    fn from(pest_err: pest::error::Error<Rule>) -> Self {
18        Self::Parser(pest_err.into())
19    }
20}
21
22impl fmt::Display for Error {
23    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
24        match self {
25            Self::Parser(pest_err) => write!(f, "{pest_err}"),
26            Self::Unsupported(desc) => write!(f, "using an unsupported feature: {desc}"),
27            Self::InvalidExtendTime { hour, minutes: minute } => {
28                write!(f, "invalid extended time for {hour:02}:{minute:02}")
29            }
30            Self::Overflow { value, expected } => {
31                write!(f, "{value} is too large: expected {expected}")
32            }
33        }
34    }
35}
36
37impl std::error::Error for Error {
38    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
39        match self {
40            Self::Parser(err) => Some(err as _),
41            _ => None,
42        }
43    }
44}
opening_hours_syntax/error.rs

opening_hours_syntax/
error.rs
