pub struct ExprMapper<F> { /* private fields */ }Trait Implementations§
Source§impl<F: FnMut(Expr) -> PolarsResult<Expr>> RewritingVisitor for ExprMapper<F>
impl<F: FnMut(Expr) -> PolarsResult<Expr>> RewritingVisitor for ExprMapper<F>
type Node = Expr
type Arena = ()
fn mutate( &mut self, node: Self::Node, _arena: &mut Self::Arena, ) -> PolarsResult<Self::Node>
Source§fn pre_visit(
&mut self,
_node: &Self::Node,
_arena: &mut Self::Arena,
) -> PolarsResult<RewriteRecursion>
fn pre_visit( &mut self, _node: &Self::Node, _arena: &mut Self::Arena, ) -> PolarsResult<RewriteRecursion>
Invoked before any children of
node are visited.Auto Trait Implementations§
impl<F> Freeze for ExprMapper<F>where
F: Freeze,
impl<F> RefUnwindSafe for ExprMapper<F>where
F: RefUnwindSafe,
impl<F> Send for ExprMapper<F>where
F: Send,
impl<F> Sync for ExprMapper<F>where
F: Sync,
impl<F> Unpin for ExprMapper<F>where
F: Unpin,
impl<F> UnwindSafe for ExprMapper<F>where
F: UnwindSafe,
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