Enum clap::parser::MatchesError
source · #[non_exhaustive]
pub enum MatchesError {
Downcast {
actual: AnyValueId,
expected: AnyValueId,
},
UnknownArgument {},
}
Expand description
Violation of [ArgMatches
][crate::ArgMatches] assumptions
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
Downcast
Fields
This variant is marked as non-exhaustive
Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.
§
actual: AnyValueId
Type for value stored in [ArgMatches
][crate::ArgMatches]
§
expected: AnyValueId
The target type to downcast to
Failed to downcast AnyValue
to the specified type
UnknownArgument
Fields
This variant is marked as non-exhaustive
Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.
Argument not defined in [Command
][crate::Command]
Trait Implementations§
source§impl Clone for MatchesError
impl Clone for MatchesError
source§fn clone(&self) -> MatchesError
fn clone(&self) -> MatchesError
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for MatchesError
impl Debug for MatchesError
source§impl Display for MatchesError
impl Display for MatchesError
source§impl Error for MatchesError
impl Error for MatchesError
1.30.0 · source§fn source(&self) -> Option<&(dyn Error + 'static)>
fn source(&self) -> Option<&(dyn Error + 'static)>
The lower-level source of this error, if any. Read more
1.0.0 · source§fn description(&self) -> &str
fn description(&self) -> &str
👎Deprecated since 1.42.0: use the Display impl or to_string()