Struct polars_plan::plans::ExprMapper

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pub struct ExprMapper<F> { /* private fields */ }

Trait Implementations§

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fn mutate( &mut self, node: Self::Node, _arena: &mut Self::Arena, ) -> PolarsResult<Self::Node>

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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§

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impl<F> Freeze for ExprMapper<F>
where F: Freeze,

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impl<F> RefUnwindSafe for ExprMapper<F>
where F: RefUnwindSafe,

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impl<F> Send for ExprMapper<F>
where F: Send,

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impl<F> Sync for ExprMapper<F>
where F: Sync,

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impl<F> Unpin for ExprMapper<F>
where F: Unpin,

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impl<F> UnwindSafe for ExprMapper<F>
where F: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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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 more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

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

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