vendor/uuid/src/builder/error.rs

   1 use crate::std::fmt;
   2
   3 /// The error that can occur when creating a [`Uuid`].
   4 ///
   5 /// [`Uuid`]: struct.Uuid.html
   6 #[derive(Clone, Debug, Eq, Hash, PartialEq)]
   7 pub(crate) struct Error {
   8     expected: usize,
   9     found: usize,
  10 }
  11
  12 impl Error {
  13     /// The expected number of bytes.
  14     #[inline]
  15     const fn expected(&self) -> usize {
  16         self.expected
  17     }
  18
  19     /// The number of bytes found.
  20     #[inline]
  21     const fn found(&self) -> usize {
  22         self.found
  23     }
  24
  25     /// Create a new [`UuidError`].
  26     ///
  27     /// [`UuidError`]: struct.UuidError.html
  28     #[inline]
  29     pub(crate) const fn new(expected: usize, found: usize) -> Self {
  30         Error { expected, found }
  31     }
  32 }
  33
  34 impl fmt::Display for Error {
  35     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
  36         write!(
  37             f,
  38             "invalid bytes length: expected {}, found {}",
  39             self.expected(),
  40             self.found()
  41         )
  42     }
  43 }
  44
  45 #[cfg(feature = "std")]
  46 mod std_support {
  47     use super::*;
  48
  49     use crate::std::error;
  50
  51     impl error::Error for Error {}
  52 }