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Recursion in datafusion_expr::expr_visitor - Rust
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pub enum Recursion<V: ExpressionVisitor> {
    Continue(V),
    Stop(V),
}
Expand description

Controls how the visitor recursion should proceed.

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Continue(V)

Attempt to visit all the children, recursively, of this expression.

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Stop(V)

Do not visit the children of this expression, though the walk of parents of this expression will not be affected

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impl<V> RefUnwindSafe for Recursion<V>where V: RefUnwindSafe,

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impl<V> Send for Recursion<V>where V: Send,

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impl<V> Sync for Recursion<V>where V: Sync,

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impl<V> Unpin for Recursion<V>where V: Unpin,

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impl<V> UnwindSafe for Recursion<V>where V: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

const: unstable · source§

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

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source§

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, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> Allocation for Twhere T: RefUnwindSafe + Send + Sync,

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impl<T> Allocation for Twhere T: RefUnwindSafe + Send + Sync,