pub enum IsNull {
Yes,
No,
}
Expand description
Tiny enum to make the return type of ToSql
more descriptive
Variants§
Yes
No data was written, as this type is null
No
The value is not null
This does not necessarily mean that any data was written to the buffer. For example, an empty string has no data to be sent over the wire, but also is not null.
Trait Implementations§
source§impl PartialEq for IsNull
impl PartialEq for IsNull
impl Copy for IsNull
impl Eq for IsNull
impl StructuralPartialEq for IsNull
Auto Trait Implementations§
impl Freeze for IsNull
impl RefUnwindSafe for IsNull
impl Send for IsNull
impl Sync for IsNull
impl Unpin for IsNull
impl UnwindSafe for IsNull
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: 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
)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
)