Adding upstream version 1:7.0.3.upstream/1%7.0.3

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 72 insertions, 0 deletions

diff --git a/rust/vendor/lzma-rs/src/error.rs b/rust/vendor/lzma-rs/src/error.rs
new file mode 100644
index 0000000..be5bfcd
--- /dev/null
+++ b/rust/vendor/lzma-rs/src/error.rs
@@ -0,0 +1,72 @@
+//! Error handling.
+
+use std::fmt::Display;
+use std::io;
+use std::result;
+
+/// Library errors.
+#[derive(Debug)]
+pub enum Error {
+    /// I/O error.
+    IoError(io::Error),
+    /// Not enough bytes to complete header
+    HeaderTooShort(io::Error),
+    /// LZMA error.
+    LzmaError(String),
+    /// XZ error.
+    XzError(String),
+}
+
+/// Library result alias.
+pub type Result<T> = result::Result<T, Error>;
+
+impl From<io::Error> for Error {
+    fn from(e: io::Error) -> Error {
+        Error::IoError(e)
+    }
+}
+
+impl Display for Error {
+    fn fmt(&self, fmt: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Error::IoError(e) => write!(fmt, "io error: {}", e),
+            Error::HeaderTooShort(e) => write!(fmt, "header too short: {}", e),
+            Error::LzmaError(e) => write!(fmt, "lzma error: {}", e),
+            Error::XzError(e) => write!(fmt, "xz error: {}", e),
+        }
+    }
+}
+
+impl std::error::Error for Error {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        match self {
+            Error::IoError(e) | Error::HeaderTooShort(e) => Some(e),
+            Error::LzmaError(_) | Error::XzError(_) => None,
+        }
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::Error;
+
+    #[test]
+    fn test_display() {
+        assert_eq!(
+            Error::IoError(std::io::Error::new(
+                std::io::ErrorKind::Other,
+                "this is an error"
+            ))
+            .to_string(),
+            "io error: this is an error"
+        );
+        assert_eq!(
+            Error::LzmaError("this is an error".to_string()).to_string(),
+            "lzma error: this is an error"
+        );
+        assert_eq!(
+            Error::XzError("this is an error".to_string()).to_string(),
+            "xz error: this is an error"
+        );
+    }
+}