vortex_expr::traversal

Enum FoldDown

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pub enum FoldDown<Out, Context> {
    Abort(Out),
    SkipChildren(Out),
    Continue(Context),
}

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Abort(Out)

Abort the entire traversal and immediately return the result.

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SkipChildren(Out)

Skip visiting children of the current node and return the result to the parent’s fold_up.

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Continue(Context)

Continue visiting the fold_down of the children of the current node.

Auto Trait Implementations§

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impl<Out, Context> Freeze for FoldDown<Out, Context>
where Out: Freeze, Context: Freeze,

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impl<Out, Context> RefUnwindSafe for FoldDown<Out, Context>
where Out: RefUnwindSafe, Context: RefUnwindSafe,

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impl<Out, Context> Send for FoldDown<Out, Context>
where Out: Send, Context: Send,

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impl<Out, Context> Sync for FoldDown<Out, Context>
where Out: Sync, Context: Sync,

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impl<Out, Context> Unpin for FoldDown<Out, Context>
where Out: Unpin, Context: Unpin,

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impl<Out, Context> UnwindSafe for FoldDown<Out, Context>
where Out: UnwindSafe, Context: 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<U> 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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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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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 T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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

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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> ExprSerializable for T