Deveel.Data.Linq.Evaluator.Nominator Class Reference

Performs bottom-up analysis to determine which nodes can possibly be part of an evaluated sub-tree. More...

Inheritance diagram for Deveel.Data.Linq.Evaluator.Nominator:

Public Member Functions
override Expression	Visit (Expression expression)

Package Functions
	Nominator (Func< Expression, bool > fnCanBeEvaluated)
HashSet< Expression >	Nominate (Expression expression)

Private Attributes
Func< Expression, bool >	fnCanBeEvaluated
HashSet< Expression >	candidates
bool	cannotBeEvaluated

Additional Inherited Members
Protected Member Functions inherited from Deveel.Data.Linq.ExpressionVisitor
	ExpressionVisitor ()
virtual MemberBinding	VisitBinding (MemberBinding binding)
virtual ElementInit	VisitElementInitializer (ElementInit initializer)
virtual Expression	VisitUnary (UnaryExpression u)
virtual Expression	VisitBinary (BinaryExpression b)
virtual Expression	VisitTypeIs (TypeBinaryExpression b)
virtual Expression	VisitConstant (ConstantExpression c)
virtual Expression	VisitConditional (ConditionalExpression c)
virtual Expression	VisitParameter (ParameterExpression p)
virtual Expression	VisitMemberAccess (MemberExpression m)
virtual Expression	VisitMethodCall (MethodCallExpression m)
virtual ReadOnlyCollection< Expression >	VisitExpressionList (ReadOnlyCollection< Expression > original)
virtual MemberAssignment	VisitMemberAssignment (MemberAssignment assignment)
virtual MemberMemberBinding	VisitMemberMemberBinding (MemberMemberBinding binding)
virtual MemberListBinding	VisitMemberListBinding (MemberListBinding binding)
virtual IEnumerable< MemberBinding >	VisitBindingList (ReadOnlyCollection< MemberBinding > original)
virtual IEnumerable< ElementInit >	VisitElementInitializerList (ReadOnlyCollection< ElementInit > original)
virtual Expression	VisitLambda (LambdaExpression lambda)
virtual NewExpression	VisitNew (NewExpression nex)
virtual Expression	VisitMemberInit (MemberInitExpression init)
virtual Expression	VisitListInit (ListInitExpression init)
virtual Expression	VisitNewArray (NewArrayExpression na)
virtual Expression	VisitInvocation (InvocationExpression iv)

Detailed Description

Performs bottom-up analysis to determine which nodes can possibly be part of an evaluated sub-tree.

Definition at line 84 of file Evaluator.cs.

Constructor & Destructor Documentation

Deveel.Data.Linq.Evaluator.Nominator.Nominator ( Func< Expression, bool >  fnCanBeEvaluated )

inlinepackage

Definition at line 89 of file Evaluator.cs.

                                                                        {
                this.fnCanBeEvaluated = fnCanBeEvaluated;
            }

Member Function Documentation

HashSet<Expression> Deveel.Data.Linq.Evaluator.Nominator.Nominate ( Expression  expression )

inlinepackage

Definition at line 93 of file Evaluator.cs.

                                                                         {
                this.candidates = new HashSet<Expression>();
                this.Visit(expression);
                return this.candidates;
            }

override Expression Deveel.Data.Linq.Evaluator.Nominator.Visit ( Expression  expression )

inlinevirtual

Reimplemented from Deveel.Data.Linq.ExpressionVisitor.

Definition at line 99 of file Evaluator.cs.

                                                                    {
                if (expression != null) {
                    bool saveCannotBeEvaluated = this.cannotBeEvaluated;
                    this.cannotBeEvaluated = false;
                    base.Visit(expression);
                    if (!this.cannotBeEvaluated) {
                        if (this.fnCanBeEvaluated(expression)) {
                            this.candidates.Add(expression);
                        } else {
                            this.cannotBeEvaluated = true;
                        }
                    }
                    this.cannotBeEvaluated |= saveCannotBeEvaluated;
                }
                return expression;
            }

Member Data Documentation

HashSet<Expression> Deveel.Data.Linq.Evaluator.Nominator.candidates

private

Definition at line 86 of file Evaluator.cs.

bool Deveel.Data.Linq.Evaluator.Nominator.cannotBeEvaluated

private

Definition at line 87 of file Evaluator.cs.

Func<Expression, bool> Deveel.Data.Linq.Evaluator.Nominator.fnCanBeEvaluated

private

Definition at line 85 of file Evaluator.cs.

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The documentation for this class was generated from the following file:

• /var/calculate/remote/distfiles/egit-src/deveeldb.git/src/deveeldb-linq/Deveel.Data.Linq.old/Evaluator.cs