rustdoc/
error.rs

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1use std::error;
2use std::fmt::{self, Formatter};
3use std::path::{Path, PathBuf};
4
5use crate::docfs::PathError;
6
7#[derive(Debug)]
8pub(crate) struct Error {
9    pub(crate) file: PathBuf,
10    pub(crate) error: String,
11}
12
13impl error::Error for Error {}
14
15impl std::fmt::Display for Error {
16    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
17        let file = self.file.display().to_string();
18        if file.is_empty() {
19            write!(f, "{}", self.error)
20        } else {
21            write!(f, "\"{}\": {}", self.file.display(), self.error)
22        }
23    }
24}
25
26impl PathError for Error {
27    fn new<S, P: AsRef<Path>>(e: S, path: P) -> Error
28    where
29        S: ToString + Sized,
30    {
31        Error { file: path.as_ref().to_path_buf(), error: e.to_string() }
32    }
33}
34
35#[macro_export]
36macro_rules! try_none {
37    ($e:expr, $file:expr) => {{
38        use std::io;
39        match $e {
40            Some(e) => e,
41            None => {
42                return Err(<$crate::error::Error as $crate::docfs::PathError>::new(
43                    io::Error::new(io::ErrorKind::Other, "not found"),
44                    $file,
45                ));
46            }
47        }
48    }};
49}
50
51#[macro_export]
52macro_rules! try_err {
53    ($e:expr, $file:expr) => {{
54        match $e {
55            Ok(e) => e,
56            Err(e) => return Err(Error::new(e, $file)),
57        }
58    }};
59}
rustdoc/error.rs

rustdoc/
error.rs
