pub enum EmptyValue {
Labels,
}Expand description
What is the value to check for emptiness.
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Trait Implementations§
Source§impl Clone for EmptyValue
impl Clone for EmptyValue
Source§fn clone(&self) -> EmptyValue
fn clone(&self) -> EmptyValue
Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreimpl Copy for EmptyValue
Source§impl Debug for EmptyValue
impl Debug for EmptyValue
Auto Trait Implementations§
impl Freeze for EmptyValue
impl RefUnwindSafe for EmptyValue
impl Send for EmptyValue
impl Sync for EmptyValue
impl Unpin for EmptyValue
impl UnsafeUnpin for EmptyValue
impl UnwindSafe for EmptyValue
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