Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

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

1 files changed, 52 insertions, 0 deletions

diff --git a/vendor/wasi-0.10.2+wasi-snapshot-preview1/src/error.rs b/vendor/wasi-0.10.2+wasi-snapshot-preview1/src/error.rs
new file mode 100644
index 000000000..fb8b44389
--- /dev/null
+++ b/vendor/wasi-0.10.2+wasi-snapshot-preview1/src/error.rs
@@ -0,0 +1,52 @@
+use super::Errno;
+use core::fmt;
+use core::num::NonZeroU16;
+
+/// A raw error returned by wasi APIs, internally containing a 16-bit error
+/// code.
+#[derive(Copy, Clone, PartialEq, Eq, Ord, PartialOrd)]
+pub struct Error {
+    code: NonZeroU16,
+}
+
+impl Error {
+    /// Constructs a new error from a raw error code, returning `None` if the
+    /// error code is zero (which means success).
+    pub fn from_raw_error(error: Errno) -> Option<Error> {
+        Some(Error {
+            code: NonZeroU16::new(error)?,
+        })
+    }
+
+    /// Returns the raw error code that this error represents.
+    pub fn raw_error(&self) -> u16 {
+        self.code.get()
+    }
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(
+            f,
+            "{} (error {})",
+            super::errno_name(self.code.get()),
+            self.code
+        )?;
+        Ok(())
+    }
+}
+
+impl fmt::Debug for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.debug_struct("Error")
+            .field("code", &self.code)
+            .field("name", &super::errno_name(self.code.get()))
+            .field("message", &super::errno_docs(self.code.get()))
+            .finish()
+    }
+}
+
+#[cfg(feature = "std")]
+extern crate std;
+#[cfg(feature = "std")]
+impl std::error::Error for Error {}