pub enum Is {
Null,
NotNull,
True,
NotTrue,
False,
NotFalse,
Unknown,
NotUnknown,
}
Expand description
Type of is expression
Variants§
Trait Implementations§
Auto Trait Implementations§
impl Freeze for Is
impl RefUnwindSafe for Is
impl Send for Is
impl Sync for Is
impl Unpin for Is
impl UnwindSafe for Is
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