pub struct IsNone { /* private fields */ }Implementations§
Trait Implementations§
Source§impl Function for IsNone
impl Function for IsNone
fn info(&self) -> &FunctionInfo
fn capabilities(&self) -> &[FunctionCapability]
fn return_type(&self, _input_types: &[Type]) -> Type
fn propagates_options(&self) -> bool
fn execute( &self, ctx: &FunctionContext<'_>, args: &Columns, ) -> Result<Columns, FunctionError>
fn accepted_types(&self) -> InputTypes
Source§fn call(
&self,
ctx: &FunctionContext<'_>,
args: &Columns,
) -> Result<Columns, FunctionError>
fn call( &self, ctx: &FunctionContext<'_>, args: &Columns, ) -> Result<Columns, FunctionError>
Calls the function, automatically propagating Option columns if
propagates_options() returns true.fn accumulator( &self, _ctx: &FunctionContext<'_>, ) -> Option<Box<dyn Accumulator>>
Auto Trait Implementations§
impl Freeze for IsNone
impl RefUnwindSafe for IsNone
impl Send for IsNone
impl Sync for IsNone
impl Unpin for IsNone
impl UnsafeUnpin for IsNone
impl UnwindSafe for IsNone
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> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read more