Class ExpressionMemberAllowListScannerBase

Base class for expression visitors used to check uses of type members against a list of allowed members.

Inheritance

System.Object

ExpressionMemberAllowListScannerBase

ExpressionMemberAllowListScanner

Namespace: System.Linq.CompilerServices

Assembly: Nuqleon.Linq.CompilerServices.dll

Syntax

public abstract class ExpressionMemberAllowListScannerBase : ExpressionVisitor

Constructors

ExpressionMemberAllowListScannerBase()

Declaration

protected ExpressionMemberAllowListScannerBase()

Methods

Check(MemberInfo)

Checks whether the specified member is supported.

Declaration

protected abstract bool Check(MemberInfo member)

Parameters

Type	Name	Description
System.Reflection.MemberInfo	member	Member to check.

Returns

Type	Description
System.Boolean	true if the member is supported; otherwise, false.

CheckElementInit(ElementInit, Func<ElementInit, ElementInit>)

Checks whether the add method used in an element initializer is on the list of allowed members.

Declaration

protected virtual ElementInit CheckElementInit(ElementInit initializer, Func<ElementInit, ElementInit> visit)

Parameters

Type	Name	Description
System.Linq.Expressions.ElementInit	initializer	Element initializer to check.
System.Func<System.Linq.Expressions.ElementInit, System.Linq.Expressions.ElementInit>	visit	Function to continue the visit of the node.

Returns

Type	Description
System.Linq.Expressions.ElementInit	The original node if the element initializer was accepted by the checker; otherwise, a rewritten result or an exception.

CheckExpression<T>(T, MemberInfo, Func<T, Expression>)

Checks whether a member used in an expression is on the list of allowed members.

Declaration

protected virtual Expression CheckExpression<T>(T expression, MemberInfo member, Func<T, Expression> visit)
    where T : Expression

Parameters

Type	Name	Description
T	expression	Expression to check.
System.Reflection.MemberInfo	member	Member used by the expression.
System.Func<T, System.Linq.Expressions.Expression>	visit	Function to continue the visit of the node.

Returns

Type	Description
System.Linq.Expressions.Expression	The original node if the expression was accepted by the checker; otherwise, a rewritten result or an exception.

Type Parameters

Name	Description
T	Type of the expression to check.

CheckMemberBinding<T>(T, Func<T, MemberBinding>)

Checks whether the member used in a member binding is on the list of allowed members.

Declaration

protected virtual MemberBinding CheckMemberBinding<T>(T memberBinding, Func<T, MemberBinding> visit)
    where T : MemberBinding

Parameters

Type	Name	Description
T	memberBinding	Member binding to check.
System.Func<T, System.Linq.Expressions.MemberBinding>	visit	Function to continue the visit of the node.

Returns

Type	Description
System.Linq.Expressions.MemberBinding	The original node if the member binding was accepted by the checker; otherwise, a rewritten result or an exception.

Type Parameters

Name	Description
T	Type of the member binding to check.

ResolveElementInit(ElementInit, Func<ElementInit, ElementInit>)

Resolves an element initializer whose add method was rejected by the checker.

Declaration

protected virtual ElementInit ResolveElementInit(ElementInit initializer, Func<ElementInit, ElementInit> visit)

Parameters

Type	Name	Description
System.Linq.Expressions.ElementInit	initializer	Element initializer to resolve.
System.Func<System.Linq.Expressions.ElementInit, System.Linq.Expressions.ElementInit>	visit	Function to continue the visit of the node.

Returns

Type	Description
System.Linq.Expressions.ElementInit	Resolved element initializer, or an exception. By default, the method throws a NotSupportedException.

Exceptions

Type	Condition
System.NotSupportedException	The specified element initializer was rejected.

ResolveExpression<T>(T, MemberInfo, Func<T, Expression>)

Resolves an expression whose member was rejected by the checker.

Declaration

protected virtual Expression ResolveExpression<T>(T expression, MemberInfo member, Func<T, Expression> visit)
    where T : Expression

Parameters

Type	Name	Description
T	expression	Expression to resolve.
System.Reflection.MemberInfo	member	Member that was rejected.
System.Func<T, System.Linq.Expressions.Expression>	visit	Function to continue the visit of the node.

Returns

Type	Description
System.Linq.Expressions.Expression	Resolved expression, or an exception. By default, the method throws a NotSupportedException.

Type Parameters

Name	Description
T	Type the expression to resolve.

Exceptions

Type	Condition
System.NotSupportedException	The specified expression was rejected.

ResolveMemberBinding<T>(T, Func<T, MemberBinding>)

Resolves a member binding whose member was rejected by the checker.

Declaration

protected virtual MemberBinding ResolveMemberBinding<T>(T binding, Func<T, MemberBinding> visit)
    where T : MemberBinding

Parameters

Type	Name	Description
T	binding	Binding to resolve.
System.Func<T, System.Linq.Expressions.MemberBinding>	visit	Function to continue the visit of the node.

Returns

Type	Description
System.Linq.Expressions.MemberBinding	Resolved member binding, or an exception. By default, the method throws a NotSupportedException.

Type Parameters

Name	Description
T	Type of the member binding to resolve.

Exceptions

Type	Condition
System.NotSupportedException	The specified member binding was rejected.

VisitBinary(BinaryExpression)

Checks whether the binary expression node's method, if any, is on the list of allowed members.

Declaration

protected override Expression VisitBinary(BinaryExpression node)

Parameters

Type	Name	Description
System.Linq.Expressions.BinaryExpression	node	Node to check.

Returns

Type	Description
System.Linq.Expressions.Expression	The original node if the expression was accepted by the checker; otherwise, a rewritten result or an exception.

VisitElementInit(ElementInit)

Checks whether the element initializer node's add method is on the list of allowed members.

Declaration

protected override ElementInit VisitElementInit(ElementInit node)

Parameters

Type	Name	Description
System.Linq.Expressions.ElementInit	node	Node to check.

Returns

Type	Description
System.Linq.Expressions.ElementInit	The original node if the expression was accepted by the checker; otherwise, a rewritten result or an exception.

VisitIndex(IndexExpression)

Checks whether the index expression node's indexer is on the list of allowed members.

Declaration

protected override Expression VisitIndex(IndexExpression node)

Parameters

Type	Name	Description
System.Linq.Expressions.IndexExpression	node	Node to check.

Returns

Type	Description
System.Linq.Expressions.Expression	The original node if the expression was accepted by the checker; otherwise, a rewritten result or an exception.

VisitMember(MemberExpression)

Checks whether the member expression node's member is on the list of allowed members.

Declaration

protected override Expression VisitMember(MemberExpression node)

Parameters

Type	Name	Description
System.Linq.Expressions.MemberExpression	node	Node to check.

Returns

Type	Description
System.Linq.Expressions.Expression	The original node if the expression was accepted by the checker; otherwise, a rewritten result or an exception.

VisitMemberBinding(MemberBinding)

Checks whether the member binding node's member is on the list of allowed members.

Declaration

protected override MemberBinding VisitMemberBinding(MemberBinding node)

Parameters

Type	Name	Description
System.Linq.Expressions.MemberBinding	node	Node to check.

Returns

Type	Description
System.Linq.Expressions.MemberBinding	The original node if the expression was accepted by the checker; otherwise, a rewritten result or an exception.

VisitMethodCall(MethodCallExpression)

Checks whether the method call expression node's method is on the list of allowed members.

Declaration

protected override Expression VisitMethodCall(MethodCallExpression node)

Parameters

Type	Name	Description
System.Linq.Expressions.MethodCallExpression	node	Node to check.

Returns

Type	Description
System.Linq.Expressions.Expression	The original node if the expression was accepted by the checker; otherwise, a rewritten result or an exception.

VisitNew(NewExpression)

Checks whether the new expression node's constructor is on the list of allowed members.

Declaration

protected override Expression VisitNew(NewExpression node)

Parameters

Type	Name	Description
System.Linq.Expressions.NewExpression	node	Node to check.

Returns

Type	Description
System.Linq.Expressions.Expression	The original node if the expression was accepted by the checker; otherwise, a rewritten result or an exception.

VisitUnary(UnaryExpression)

Checks whether the unary expression node's method, if any, is on the list of allowed members.

Declaration

protected override Expression VisitUnary(UnaryExpression node)

Parameters

Type	Name	Description
System.Linq.Expressions.UnaryExpression	node	Node to check.

Returns

Type	Description
System.Linq.Expressions.Expression	The original node if the expression was accepted by the checker; otherwise, a rewritten result or an exception.