Struct cucumber_expressions::Optional [−][src]
pub struct Optional<Input>(pub Input);
Expand description
optional
defined in the grammar spec, allowing to match an optional
Input
.
See parse::optional()
for the detailed grammar and examples.
Tuple Fields
0: Input
Trait Implementations
Auto Trait Implementations
impl<Input> RefUnwindSafe for Optional<Input> where
Input: RefUnwindSafe,
impl<Input> UnwindSafe for Optional<Input> where
Input: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more