pub enum Parameter<'a> {
Mandatory {
parameter_name: &'a str,
help: Option<&'a str>,
},
Optional {
parameter_name: &'a str,
help: Option<&'a str>,
},
Named {
parameter_name: &'a str,
help: Option<&'a str>,
},
NamedValue {
parameter_name: &'a str,
argument_name: &'a str,
help: Option<&'a str>,
},
}
Expand description
Describes a parameter to the command
Variants§
Mandatory
A mandatory positional parameter
Fields
Optional
An optional positional parameter. Must come after the mandatory positional arguments.
Fields
Named
An optional named parameter with no argument (e.g. --verbose
or --dry-run
)
NamedValue
A optional named parameter with argument (e.g. --mode=foo
or --level=3
)
Trait Implementations§
Auto Trait Implementations§
impl<'a> Freeze for Parameter<'a>
impl<'a> RefUnwindSafe for Parameter<'a>
impl<'a> Send for Parameter<'a>
impl<'a> Sync for Parameter<'a>
impl<'a> Unpin for Parameter<'a>
impl<'a> UnwindSafe for Parameter<'a>
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more