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-rw-r--r--third_party/rust/zip/src/result.rs98
1 files changed, 98 insertions, 0 deletions
diff --git a/third_party/rust/zip/src/result.rs b/third_party/rust/zip/src/result.rs
new file mode 100644
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+++ b/third_party/rust/zip/src/result.rs
@@ -0,0 +1,98 @@
+//! 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)
+ }
+}
+
+/// Error type for time parsing
+#[derive(Debug)]
+pub struct DateTimeRangeError;
+
+impl fmt::Display for DateTimeRangeError {
+ fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+ write!(
+ fmt,
+ "a date could not be represented within the bounds the MS-DOS date range (1980-2107)"
+ )
+ }
+}
+
+impl Error for DateTimeRangeError {}