Class QueryVisitor

Query expression visitor to rewrite a query expression tree.

Inheritance

System.Object

QueryVisitor<QueryTree, MonadMember, QueryOperator>

QueryVisitor

CoalescingOptimizer

QueryVisitorWithReflection

Inherited Members

QueryVisitor<QueryTree, MonadMember, QueryOperator>.Visit(QueryTree)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.VisitAndConvert<TStronglyTypedResult>(QueryTree)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.Visit<TSource, TResult>(ReadOnlyCollection<TSource>, Func<TSource, TResult>)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.VisitFirst(FirstOperator)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.MakeFirst(FirstOperator, MonadMember)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.VisitFirstPredicate(FirstPredicateOperator)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.MakeFirstPredicate(FirstPredicateOperator, MonadMember, QueryTree)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.VisitLambdaAbstraction(LambdaAbstraction)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.MakeLambdaAbstraction(LambdaAbstraction, ReadOnlyCollection<QueryTree>)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.VisitMonadAbstraction(MonadAbstraction)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.MakeMonadAbstraction(MonadAbstraction, QueryTree)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.VisitSelect(SelectOperator)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.MakeSelect(SelectOperator, MonadMember, QueryTree)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.VisitTake(TakeOperator)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.MakeTake(TakeOperator, MonadMember, QueryTree)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.VisitWhere(WhereOperator)

QueryVisitor<QueryTree, MonadMember, QueryOperator>.MakeWhere(WhereOperator, MonadMember, QueryTree)

Namespace: System.Linq.CompilerServices.Optimizers

Assembly: Nuqleon.Linq.CompilerServices.Optimizers.dll

Syntax

public class QueryVisitor : QueryVisitor<QueryTree, MonadMember, QueryOperator>

Constructors

QueryVisitor()

Declaration

public QueryVisitor()

Methods

MakeFirst(FirstOperator, MonadMember)

Makes a FirstOperator with the given children.

Declaration

protected override sealed QueryOperator MakeFirst(FirstOperator node, MonadMember source)

Parameters

Type	Name	Description
FirstOperator	node	Original query expression.
MonadMember	source	Source query expression.

Returns

Type	Description
QueryOperator	Representation of the original query expression.

Overrides

System.Linq.CompilerServices.Optimizers.QueryVisitor<System.Linq.CompilerServices.Optimizers.QueryTree, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryOperator>.MakeFirst(System.Linq.CompilerServices.Optimizers.FirstOperator, System.Linq.CompilerServices.Optimizers.MonadMember)

MakeFirstPredicate(FirstPredicateOperator, MonadMember, QueryTree)

Makes a FirstPredicateOperator with the given children.

Declaration

protected override sealed QueryOperator MakeFirstPredicate(FirstPredicateOperator node, MonadMember source, QueryTree predicate)

Parameters

Type	Name	Description
FirstPredicateOperator	node	Original query expression.
MonadMember	source	Source query expression.
QueryTree	predicate	Predicate query expression.

Returns

Type	Description
QueryOperator	Representation of the original query expression.

Overrides

System.Linq.CompilerServices.Optimizers.QueryVisitor<System.Linq.CompilerServices.Optimizers.QueryTree, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryOperator>.MakeFirstPredicate(System.Linq.CompilerServices.Optimizers.FirstPredicateOperator, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryTree)

MakeLambdaAbstraction(LambdaAbstraction, ReadOnlyCollection<QueryTree>)

Makes a LambdaAbstraction with the given children.

Declaration

protected override sealed QueryTree MakeLambdaAbstraction(LambdaAbstraction node, ReadOnlyCollection<QueryTree> arguments)

Parameters

Type	Name	Description
LambdaAbstraction	node	Original query expression.
System.Collections.ObjectModel.ReadOnlyCollection<QueryTree>	arguments	Argument query expressions.

Returns

Type	Description
QueryTree	Representation of the original query expression.

Overrides

System.Linq.CompilerServices.Optimizers.QueryVisitor<System.Linq.CompilerServices.Optimizers.QueryTree, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryOperator>.MakeLambdaAbstraction(System.Linq.CompilerServices.Optimizers.LambdaAbstraction, System.Collections.ObjectModel.ReadOnlyCollection<System.Linq.CompilerServices.Optimizers.QueryTree>)

MakeMonadAbstraction(MonadAbstraction, QueryTree)

Makes a MonadAbstraction with the given children.

Declaration

protected override sealed MonadMember MakeMonadAbstraction(MonadAbstraction node, QueryTree inner)

Parameters

Type	Name	Description
MonadAbstraction	node	Original query expression.
QueryTree	inner	Inner query expression.

Returns

Type	Description
MonadMember	Representation of the original query expression.

Overrides

System.Linq.CompilerServices.Optimizers.QueryVisitor<System.Linq.CompilerServices.Optimizers.QueryTree, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryOperator>.MakeMonadAbstraction(System.Linq.CompilerServices.Optimizers.MonadAbstraction, System.Linq.CompilerServices.Optimizers.QueryTree)

MakeSelect(SelectOperator, MonadMember, QueryTree)

Makes a SelectOperator with the given children.

Declaration

protected override sealed QueryOperator MakeSelect(SelectOperator node, MonadMember source, QueryTree selector)

Parameters

Type	Name	Description
SelectOperator	node	Original query expression.
MonadMember	source	Source query expression.
QueryTree	selector	Selector query expression.

Returns

Type	Description
QueryOperator	Representation of the original query expression.

Overrides

System.Linq.CompilerServices.Optimizers.QueryVisitor<System.Linq.CompilerServices.Optimizers.QueryTree, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryOperator>.MakeSelect(System.Linq.CompilerServices.Optimizers.SelectOperator, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryTree)

MakeTake(TakeOperator, MonadMember, QueryTree)

Makes a TakeOperator with the given children.

Declaration

protected override sealed QueryOperator MakeTake(TakeOperator node, MonadMember source, QueryTree count)

Parameters

Type	Name	Description
TakeOperator	node	Original query expression.
MonadMember	source	Source query expression.
QueryTree	count	Count query expression.

Returns

Type	Description
QueryOperator	Representation of the original query expression.

Overrides

System.Linq.CompilerServices.Optimizers.QueryVisitor<System.Linq.CompilerServices.Optimizers.QueryTree, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryOperator>.MakeTake(System.Linq.CompilerServices.Optimizers.TakeOperator, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryTree)

MakeWhere(WhereOperator, MonadMember, QueryTree)

Makes a WhereOperator with the given children.

Declaration

protected override sealed QueryOperator MakeWhere(WhereOperator node, MonadMember source, QueryTree predicate)

Parameters

Type	Name	Description
WhereOperator	node	Original query expression.
MonadMember	source	Source query expression.
QueryTree	predicate	Predicate query expression.

Returns

Type	Description
QueryOperator	Representation of the original query expression.

Overrides

System.Linq.CompilerServices.Optimizers.QueryVisitor<System.Linq.CompilerServices.Optimizers.QueryTree, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryOperator>.MakeWhere(System.Linq.CompilerServices.Optimizers.WhereOperator, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryTree)

Visit(ReadOnlyCollection<QueryTree>)

Visits the elements in the specified input collection.

Declaration

protected ReadOnlyCollection<QueryTree> Visit(ReadOnlyCollection<QueryTree> nodes)

Parameters

Type	Name	Description
System.Collections.ObjectModel.ReadOnlyCollection<QueryTree>	nodes	Input collection whose elements to visit.

Returns

Type	Description
System.Collections.ObjectModel.ReadOnlyCollection<QueryTree>	Collection of visited input elements.

VisitFirst(FirstOperator)

Visits a FirstOperator node.

Declaration

protected override QueryOperator VisitFirst(FirstOperator op)

Parameters

Type	Name	Description
FirstOperator	op	Node to visit.

Returns

Type	Description
QueryOperator	Result of visiting the node.

Overrides

System.Linq.CompilerServices.Optimizers.QueryVisitor<System.Linq.CompilerServices.Optimizers.QueryTree, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryOperator>.VisitFirst(System.Linq.CompilerServices.Optimizers.FirstOperator)

VisitFirstPredicate(FirstPredicateOperator)

Visits a FirstPredicateOperator node.

Declaration

protected override QueryOperator VisitFirstPredicate(FirstPredicateOperator op)

Parameters

Type	Name	Description
FirstPredicateOperator	op	Node to visit.

Returns

Type	Description
QueryOperator	Result of visiting the node.

Overrides

System.Linq.CompilerServices.Optimizers.QueryVisitor<System.Linq.CompilerServices.Optimizers.QueryTree, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryOperator>.VisitFirstPredicate(System.Linq.CompilerServices.Optimizers.FirstPredicateOperator)

VisitLambdaAbstraction(LambdaAbstraction)

Visits a LambdaAbstraction node.

Declaration

protected override QueryTree VisitLambdaAbstraction(LambdaAbstraction node)

Parameters

Type	Name	Description
LambdaAbstraction	node	Node to visit.

Returns

Type	Description
QueryTree	Result of visiting the node.

Overrides

System.Linq.CompilerServices.Optimizers.QueryVisitor<System.Linq.CompilerServices.Optimizers.QueryTree, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryOperator>.VisitLambdaAbstraction(System.Linq.CompilerServices.Optimizers.LambdaAbstraction)

VisitMonadAbstraction(MonadAbstraction)

Visits a MonadAbstraction node.

Declaration

protected override MonadMember VisitMonadAbstraction(MonadAbstraction node)

Parameters

Type	Name	Description
MonadAbstraction	node	Node to visit.

Returns

Type	Description
MonadMember	Result of visiting the node.

Overrides

System.Linq.CompilerServices.Optimizers.QueryVisitor<System.Linq.CompilerServices.Optimizers.QueryTree, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryOperator>.VisitMonadAbstraction(System.Linq.CompilerServices.Optimizers.MonadAbstraction)

VisitSelect(SelectOperator)

Visits a SelectOperator node.

Declaration

protected override QueryOperator VisitSelect(SelectOperator op)

Parameters

Type	Name	Description
SelectOperator	op	Node to visit.

Returns

Type	Description
QueryOperator	Result of visiting the node.

Overrides

System.Linq.CompilerServices.Optimizers.QueryVisitor<System.Linq.CompilerServices.Optimizers.QueryTree, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryOperator>.VisitSelect(System.Linq.CompilerServices.Optimizers.SelectOperator)

VisitTake(TakeOperator)

Visits a TakeOperator node.

Declaration

protected override QueryOperator VisitTake(TakeOperator op)

Parameters

Type	Name	Description
TakeOperator	op	Node to visit.

Returns

Type	Description
QueryOperator	Result of visiting the node.

Overrides

System.Linq.CompilerServices.Optimizers.QueryVisitor<System.Linq.CompilerServices.Optimizers.QueryTree, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryOperator>.VisitTake(System.Linq.CompilerServices.Optimizers.TakeOperator)

VisitWhere(WhereOperator)

Visits a WhereOperator node.

Declaration

protected override QueryOperator VisitWhere(WhereOperator op)

Parameters

Type	Name	Description
WhereOperator	op	Node to visit.

Returns

Type	Description
QueryOperator	Result of visiting the node.

Overrides

System.Linq.CompilerServices.Optimizers.QueryVisitor<System.Linq.CompilerServices.Optimizers.QueryTree, System.Linq.CompilerServices.Optimizers.MonadMember, System.Linq.CompilerServices.Optimizers.QueryOperator>.VisitWhere(System.Linq.CompilerServices.Optimizers.WhereOperator)