1 files changed, 55 insertions, 0 deletions
diff --git a/third_party/rust/clap/src/error/context.rs b/third_party/rust/clap/src/error/context.rs
new file mode 100644
index 0000000000..985cd4d70b
--- /dev/null
+++ b/third_party/rust/clap/src/error/context.rs
@@ -0,0 +1,55 @@
+/// Semantics for a piece of error information
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+#[non_exhaustive]
+pub enum ContextKind {
+    /// The cause of the error
+    InvalidSubcommand,
+    /// The cause of the error
+    InvalidArg,
+    /// Existing arguments
+    PriorArg,
+    /// Accepted values
+    ValidValue,
+    /// Rejected values
+    InvalidValue,
+    /// Number of values present
+    ActualNumValues,
+    /// Number of allowed values
+    ExpectedNumValues,
+    /// Minimum number of allowed values
+    MinValues,
+    /// Number of occurrences present
+    ActualNumOccurrences,
+    /// Maximum number of allowed occurrences
+    MaxOccurrences,
+    /// Potential fix for the user
+    SuggestedCommand,
+    /// Potential fix for the user
+    SuggestedSubcommand,
+    /// Potential fix for the user
+    SuggestedArg,
+    /// Potential fix for the user
+    SuggestedValue,
+    /// Trailing argument
+    TrailingArg,
+    /// A usage string
+    Usage,
+    /// An opaque message to the user
+    Custom,
+}
+
+/// A piece of error information
+#[derive(Clone, Debug, PartialEq, Eq)]
+#[non_exhaustive]
+pub enum ContextValue {
+    /// [`ContextKind`] is self-sufficient, no additional information needed
+    None,
+    /// A single value
+    Bool(bool),
+    /// A single value
+    String(String),
+    /// Many values
+    Strings(Vec<String>),
+    /// A single value
+    Number(isize),
+}