grep_pcre2/
error.rs

1/// An error that can occur in this crate.
2///
3/// Generally, this error corresponds to problems building a regular
4/// expression, whether it's in parsing, compilation or a problem with
5/// guaranteeing a configured optimization.
6#[derive(Clone, Debug)]
7pub struct Error {
8    kind: ErrorKind,
9}
10
11impl Error {
12    pub(crate) fn regex<E: std::error::Error>(err: E) -> Error {
13        Error { kind: ErrorKind::Regex(err.to_string()) }
14    }
15
16    /// Return the kind of this error.
17    pub fn kind(&self) -> &ErrorKind {
18        &self.kind
19    }
20}
21
22/// The kind of an error that can occur.
23#[derive(Clone, Debug)]
24#[non_exhaustive]
25pub enum ErrorKind {
26    /// An error that occurred as a result of parsing a regular expression.
27    /// This can be a syntax error or an error that results from attempting to
28    /// compile a regular expression that is too big.
29    ///
30    /// The string here is the underlying error converted to a string.
31    Regex(String),
32}
33
34impl std::error::Error for Error {
35    fn description(&self) -> &str {
36        match self.kind {
37            ErrorKind::Regex(_) => "regex error",
38        }
39    }
40}
41
42impl std::fmt::Display for Error {
43    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
44        match self.kind {
45            ErrorKind::Regex(ref s) => write!(f, "{}", s),
46        }
47    }
48}
grep_pcre2/error.rs

grep_pcre2/
error.rs
