pub enum Occur {
Req,
Optional,
Multi,
}
Expand description
Describes how often an option may occur.
Variants§
Req
The option occurs once.
Optional
The option occurs at most once.
Multi
The option occurs zero or more times.
Trait Implementations§
impl Copy for Occur
impl Eq for Occur
impl StructuralPartialEq for Occur
Auto Trait Implementations§
impl Freeze for Occur
impl RefUnwindSafe for Occur
impl Send for Occur
impl Sync for Occur
impl Unpin for Occur
impl UnwindSafe for Occur
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
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§default unsafe fn clone_to_uninit(&self, dst: *mut T)
default unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)source§impl<T> CloneToUninit for Twhere
T: Copy,
impl<T> CloneToUninit for Twhere
T: Copy,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)