vendor/tar/src/error.rs

   1 use std::borrow::Cow;
   2 use std::error;
   3 use std::fmt;
   4 use std::io::{self, Error};
   5
   6 #[derive(Debug)]
   7 pub struct TarError {
   8     desc: Cow<'static, str>,
   9     io: io::Error,
  10 }
  11
  12 impl TarError {
  13     pub fn new(desc: impl Into<Cow<'static, str>>, err: Error) -> TarError {
  14         TarError {
  15             desc: desc.into(),
  16             io: err,
  17         }
  18     }
  19 }
  20
  21 impl error::Error for TarError {
  22     fn description(&self) -> &str {
  23         &self.desc
  24     }
  25
  26     fn source(&self) -> Option<&(dyn error::Error + 'static)> {
  27         Some(&self.io)
  28     }
  29 }
  30
  31 impl fmt::Display for TarError {
  32     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
  33         self.desc.fmt(f)
  34     }
  35 }
  36
  37 impl From<TarError> for Error {
  38     fn from(t: TarError) -> Error {
  39         Error::new(t.io.kind(), t)
  40     }
  41 }