tracing_flame/
error.rs

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1use std::fmt;
2use std::path::PathBuf;
3
4/// The error type for `tracing-flame`
5#[derive(Debug)]
6pub struct Error(pub(crate) Kind);
7
8impl Error {
9    pub(crate) fn report(&self) {
10        let current_error: &dyn std::error::Error = self;
11        let mut current_error = Some(current_error);
12        let mut ind = 0;
13
14        eprintln!("Error:");
15
16        while let Some(error) = current_error {
17            eprintln!("    {}: {}", ind, error);
18            ind += 1;
19            current_error = error.source();
20        }
21    }
22}
23
24impl fmt::Display for Error {
25    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
26        fmt::Display::fmt(&self.0, f)
27    }
28}
29
30impl std::error::Error for Error {
31    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
32        match &self.0 {
33            Kind::CreateFile { ref source, .. } => Some(source),
34            Kind::FlushFile(ref source) => Some(source),
35        }
36    }
37}
38
39#[derive(Debug)]
40pub(crate) enum Kind {
41    CreateFile {
42        source: std::io::Error,
43        path: PathBuf,
44    },
45    FlushFile(std::io::Error),
46}
47
48impl fmt::Display for Kind {
49    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
50        match self {
51            Self::CreateFile { path, .. } => {
52                write!(f, "cannot create output file. path={}", path.display())
53            }
54            Self::FlushFile { .. } => write!(f, "cannot flush output buffer"),
55        }
56    }
57}
tracing_flame/error.rs

tracing_flame/
error.rs
