1 files changed, 112 insertions, 0 deletions
diff --git a/third_party/rust/time/src/error/mod.rs b/third_party/rust/time/src/error/mod.rs
new file mode 100644
index 0000000000..346b89f748
--- /dev/null
+++ b/third_party/rust/time/src/error/mod.rs
@@ -0,0 +1,112 @@
+//! Various error types returned by methods in the time crate.
+
+mod component_range;
+mod conversion_range;
+mod different_variant;
+#[cfg(feature = "formatting")]
+mod format;
+#[cfg(feature = "local-offset")]
+mod indeterminate_offset;
+#[cfg(all(any(feature = "formatting", feature = "parsing"), feature = "alloc"))]
+mod invalid_format_description;
+mod invalid_variant;
+#[cfg(feature = "parsing")]
+mod parse;
+#[cfg(feature = "parsing")]
+mod parse_from_description;
+#[cfg(feature = "parsing")]
+mod try_from_parsed;
+
+use core::fmt;
+
+pub use component_range::ComponentRange;
+pub use conversion_range::ConversionRange;
+pub use different_variant::DifferentVariant;
+#[cfg(feature = "formatting")]
+pub use format::Format;
+#[cfg(feature = "local-offset")]
+pub use indeterminate_offset::IndeterminateOffset;
+#[cfg(all(any(feature = "formatting", feature = "parsing"), feature = "alloc"))]
+pub use invalid_format_description::InvalidFormatDescription;
+pub use invalid_variant::InvalidVariant;
+#[cfg(feature = "parsing")]
+pub use parse::Parse;
+#[cfg(feature = "parsing")]
+pub use parse_from_description::ParseFromDescription;
+#[cfg(feature = "parsing")]
+pub use try_from_parsed::TryFromParsed;
+
+/// A unified error type for anything returned by a method in the time crate.
+///
+/// This can be used when you either don't know or don't care about the exact error returned.
+/// `Result<_, time::Error>` (or its alias `time::Result<_>`) will work in these situations.
+#[allow(missing_copy_implementations, variant_size_differences)]
+#[allow(clippy::missing_docs_in_private_items)] // variants only
+#[non_exhaustive]
+#[derive(Debug)]
+pub enum Error {
+    ConversionRange(ConversionRange),
+    ComponentRange(ComponentRange),
+    #[cfg(feature = "local-offset")]
+    IndeterminateOffset(IndeterminateOffset),
+    #[cfg(feature = "formatting")]
+    Format(Format),
+    #[cfg(feature = "parsing")]
+    ParseFromDescription(ParseFromDescription),
+    #[cfg(feature = "parsing")]
+    #[non_exhaustive]
+    UnexpectedTrailingCharacters,
+    #[cfg(feature = "parsing")]
+    TryFromParsed(TryFromParsed),
+    #[cfg(all(any(feature = "formatting", feature = "parsing"), feature = "alloc"))]
+    InvalidFormatDescription(InvalidFormatDescription),
+    DifferentVariant(DifferentVariant),
+    InvalidVariant(InvalidVariant),
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::ConversionRange(e) => e.fmt(f),
+            Self::ComponentRange(e) => e.fmt(f),
+            #[cfg(feature = "local-offset")]
+            Self::IndeterminateOffset(e) => e.fmt(f),
+            #[cfg(feature = "formatting")]
+            Self::Format(e) => e.fmt(f),
+            #[cfg(feature = "parsing")]
+            Self::ParseFromDescription(e) => e.fmt(f),
+            #[cfg(feature = "parsing")]
+            Self::UnexpectedTrailingCharacters => f.write_str("unexpected trailing characters"),
+            #[cfg(feature = "parsing")]
+            Self::TryFromParsed(e) => e.fmt(f),
+            #[cfg(all(any(feature = "formatting", feature = "parsing"), feature = "alloc"))]
+            Self::InvalidFormatDescription(e) => e.fmt(f),
+            Self::DifferentVariant(e) => e.fmt(f),
+            Self::InvalidVariant(e) => e.fmt(f),
+        }
+    }
+}
+
+#[cfg(feature = "std")]
+impl std::error::Error for Error {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        match self {
+            Self::ConversionRange(err) => Some(err),
+            Self::ComponentRange(err) => Some(err),
+            #[cfg(feature = "local-offset")]
+            Self::IndeterminateOffset(err) => Some(err),
+            #[cfg(feature = "formatting")]
+            Self::Format(err) => Some(err),
+            #[cfg(feature = "parsing")]
+            Self::ParseFromDescription(err) => Some(err),
+            #[cfg(feature = "parsing")]
+            Self::UnexpectedTrailingCharacters => None,
+            #[cfg(feature = "parsing")]
+            Self::TryFromParsed(err) => Some(err),
+            #[cfg(all(any(feature = "formatting", feature = "parsing"), feature = "alloc"))]
+            Self::InvalidFormatDescription(err) => Some(err),
+            Self::DifferentVariant(err) => Some(err),
+            Self::InvalidVariant(err) => Some(err),
+        }
+    }
+}