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VarCollector

reddb::storage::query::engine::transform

Struct VarCollector 

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pub struct VarCollector {
    pub vars: Vec<Var>,
}
Expand description

Variable collector visitor

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§vars: Vec<Var>

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impl VarCollector

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pub fn new() -> VarCollector

Create new collector

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pub fn collect(op: &Op) -> Vec<Var>

Collect vars from op

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impl Debug for VarCollector

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl Default for VarCollector

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fn default() -> VarCollector

Returns the “default value” for a type. Read more
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impl OpVisitor for VarCollector

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fn visit_bgp(&mut self, op: &OpBGP)

Visit BGP
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fn visit_triple(&mut self, op: &OpTriple)

Visit triple
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fn visit_project(&mut self, op: &OpProject)

Visit project
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fn visit_group(&mut self, op: &OpGroup)

Visit group
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fn visit_extend(&mut self, op: &OpExtend)

Visit extend
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fn visit_table(&mut self, op: &OpTable)

Visit table
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fn visit_join(&mut self, _op: &OpJoin)

Visit join
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fn visit_left_join(&mut self, _op: &OpLeftJoin)

Visit left join
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fn visit_filter(&mut self, _op: &OpFilter)

Visit filter
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fn visit_union(&mut self, _op: &OpUnion)

Visit union
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fn visit_distinct(&mut self, _op: &OpDistinct)

Visit distinct
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fn visit_reduced(&mut self, _op: &OpReduced)

Visit reduced
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fn visit_slice(&mut self, _op: &OpSlice)

Visit slice
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fn visit_order(&mut self, _op: &OpOrder)

Visit order
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fn visit_minus(&mut self, _op: &OpMinus)

Visit minus
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fn visit_right_join(&mut self, _op: &OpRightJoin)

Visit right join
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fn visit_cross_join(&mut self, _op: &OpCrossJoin)

Visit cross join
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fn visit_intersect(&mut self, _op: &OpIntersect)

Visit intersect
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fn visit_sequence(&mut self, _op: &OpSequence)

Visit sequence
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fn visit_disjunction(&mut self, _op: &OpDisjunction)

Visit disjunction
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fn visit_null(&mut self, _op: &OpNull)

Visit null

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> IntoRequest<T> for T

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fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request
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impl<L> LayerExt<L> for L

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fn named_layer<S>(&self, service: S) -> Layered<<L as Layer<S>>::Service, S>
where L: Layer<S>,

Applies the layer to a service and wraps it in Layered.
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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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> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more