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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /vendor/zip/src/result.rs | |
parent | Adding upstream version 1.67.1+dfsg1. (diff) | |
download | rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.tar.xz rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.zip |
Adding upstream version 1.68.2+dfsg1.upstream/1.68.2+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | vendor/zip/src/result.rs | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/vendor/zip/src/result.rs b/vendor/zip/src/result.rs new file mode 100644 index 000000000..72a30e488 --- /dev/null +++ b/vendor/zip/src/result.rs @@ -0,0 +1,83 @@ +//! Error types that can be emitted from this library + +use std::error::Error; +use std::fmt; +use std::io; + +/// Generic result type with ZipError as its error variant +pub type ZipResult<T> = Result<T, ZipError>; + +/// The given password is wrong +#[derive(Debug)] +pub struct InvalidPassword; + +impl fmt::Display for InvalidPassword { + fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { + write!(fmt, "invalid password for file in archive") + } +} + +impl Error for InvalidPassword {} + +/// Error type for Zip +#[derive(Debug)] +pub enum ZipError { + /// An Error caused by I/O + Io(io::Error), + + /// This file is probably not a zip archive + InvalidArchive(&'static str), + + /// This archive is not supported + UnsupportedArchive(&'static str), + + /// The requested file could not be found in the archive + FileNotFound, +} + +impl From<io::Error> for ZipError { + fn from(err: io::Error) -> ZipError { + ZipError::Io(err) + } +} + +impl fmt::Display for ZipError { + fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result { + match self { + ZipError::Io(err) => write!(fmt, "{}", err), + ZipError::InvalidArchive(err) => write!(fmt, "invalid Zip archive: {}", err), + ZipError::UnsupportedArchive(err) => write!(fmt, "unsupported Zip archive: {}", err), + ZipError::FileNotFound => write!(fmt, "specified file not found in archive"), + } + } +} + +impl Error for ZipError { + fn source(&self) -> Option<&(dyn Error + 'static)> { + match self { + ZipError::Io(err) => Some(err), + _ => None, + } + } +} + +impl ZipError { + /// The text used as an error when a password is required and not supplied + /// + /// ```rust,no_run + /// # use zip::result::ZipError; + /// # let mut archive = zip::ZipArchive::new(std::io::Cursor::new(&[])).unwrap(); + /// match archive.by_index(1) { + /// Err(ZipError::UnsupportedArchive(ZipError::PASSWORD_REQUIRED)) => eprintln!("a password is needed to unzip this file"), + /// _ => (), + /// } + /// # () + /// ``` + pub const PASSWORD_REQUIRED: &'static str = "Password required to decrypt file"; +} + +impl From<ZipError> for io::Error { + fn from(err: ZipError) -> io::Error { + io::Error::new(io::ErrorKind::Other, err) + } +} |