Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / ndp / fx / src / DataWeb / Client / System / Data / Services / Client / ALinq / ExpressionVisitor.cs / 2 / ExpressionVisitor.cs
//----------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//
// Expression Visitor
//
//
// @owner [....]
//---------------------------------------------------------------------
#if ASTORIA_SERVER
namespace System.Data.Services
#else
namespace System.Data.Services.Client
#endif
{
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq.Expressions;
///
/// base vistor class for walking an expression tree bottom up.
///
internal abstract class ExpressionVisitor
{
///
/// Main visit method for ExpressionVisitor
///
/// The expression to visit
/// The visited expression
internal virtual Expression Visit(Expression exp)
{
if (exp == null)
{
return exp;
}
switch (exp.NodeType)
{
case ExpressionType.UnaryPlus:
case ExpressionType.Negate:
case ExpressionType.NegateChecked:
case ExpressionType.Not:
case ExpressionType.Convert:
case ExpressionType.ConvertChecked:
case ExpressionType.ArrayLength:
case ExpressionType.Quote:
case ExpressionType.TypeAs:
return this.VisitUnary((UnaryExpression)exp);
case ExpressionType.Add:
case ExpressionType.AddChecked:
case ExpressionType.Subtract:
case ExpressionType.SubtractChecked:
case ExpressionType.Multiply:
case ExpressionType.MultiplyChecked:
case ExpressionType.Divide:
case ExpressionType.Modulo:
#if !ASTORIA_CLIENT
case ExpressionType.Power:
#endif
case ExpressionType.And:
case ExpressionType.AndAlso:
case ExpressionType.Or:
case ExpressionType.OrElse:
case ExpressionType.LessThan:
case ExpressionType.LessThanOrEqual:
case ExpressionType.GreaterThan:
case ExpressionType.GreaterThanOrEqual:
case ExpressionType.Equal:
case ExpressionType.NotEqual:
case ExpressionType.Coalesce:
case ExpressionType.ArrayIndex:
case ExpressionType.RightShift:
case ExpressionType.LeftShift:
case ExpressionType.ExclusiveOr:
return this.VisitBinary((BinaryExpression)exp);
case ExpressionType.TypeIs:
return this.VisitTypeIs((TypeBinaryExpression)exp);
case ExpressionType.Conditional:
return this.VisitConditional((ConditionalExpression)exp);
case ExpressionType.Constant:
return this.VisitConstant((ConstantExpression)exp);
case ExpressionType.Parameter:
return this.VisitParameter((ParameterExpression)exp);
case ExpressionType.MemberAccess:
return this.VisitMemberAccess((MemberExpression)exp);
case ExpressionType.Call:
return this.VisitMethodCall((MethodCallExpression)exp);
case ExpressionType.Lambda:
return this.VisitLambda((LambdaExpression)exp);
case ExpressionType.New:
return this.VisitNew((NewExpression)exp);
case ExpressionType.NewArrayInit:
case ExpressionType.NewArrayBounds:
return this.VisitNewArray((NewArrayExpression)exp);
case ExpressionType.Invoke:
return this.VisitInvocation((InvocationExpression)exp);
case ExpressionType.MemberInit:
return this.VisitMemberInit((MemberInitExpression)exp);
case ExpressionType.ListInit:
return this.VisitListInit((ListInitExpression)exp);
default:
throw new NotSupportedException(Strings.ALinq_UnsupportedExpression(exp.NodeType.ToString()));
}
}
///
/// MemberBinding visit method
///
/// The MemberBinding expression to visit
/// The visited MemberBinding expression
internal virtual MemberBinding VisitBinding(MemberBinding binding)
{
switch (binding.BindingType)
{
case MemberBindingType.Assignment:
return this.VisitMemberAssignment((MemberAssignment)binding);
case MemberBindingType.MemberBinding:
return this.VisitMemberMemberBinding((MemberMemberBinding)binding);
case MemberBindingType.ListBinding:
return this.VisitMemberListBinding((MemberListBinding)binding);
default:
throw new NotSupportedException(Strings.ALinq_UnsupportedExpression(binding.BindingType.ToString()));
}
}
///
/// ElementInit visit method
///
/// The ElementInit expression to visit
/// The visited ElementInit expression
internal virtual ElementInit VisitElementInitializer(ElementInit initializer)
{
ReadOnlyCollection arguments = this.VisitExpressionList(initializer.Arguments);
if (arguments != initializer.Arguments)
{
return Expression.ElementInit(initializer.AddMethod, arguments);
}
return initializer;
}
///
/// UnaryExpression visit method
///
/// The UnaryExpression expression to visit
/// The visited UnaryExpression expression
internal virtual Expression VisitUnary(UnaryExpression u)
{
Expression operand = this.Visit(u.Operand);
if (operand != u.Operand)
{
return Expression.MakeUnary(u.NodeType, operand, u.Type, u.Method);
}
return u;
}
///
/// BinaryExpression visit method
///
/// The BinaryExpression expression to visit
/// The visited BinaryExpression expression
internal virtual Expression VisitBinary(BinaryExpression b)
{
Expression left = this.Visit(b.Left);
Expression right = this.Visit(b.Right);
Expression conversion = this.Visit(b.Conversion);
if (left != b.Left || right != b.Right || conversion != b.Conversion)
{
if (b.NodeType == ExpressionType.Coalesce && b.Conversion != null)
{
return Expression.Coalesce(left, right, conversion as LambdaExpression);
}
else
{
return Expression.MakeBinary(b.NodeType, left, right, b.IsLiftedToNull, b.Method);
}
}
return b;
}
///
/// TypeBinaryExpression visit method
///
/// The TypeBinaryExpression expression to visit
/// The visited TypeBinaryExpression expression
internal virtual Expression VisitTypeIs(TypeBinaryExpression b)
{
Expression expr = this.Visit(b.Expression);
if (expr != b.Expression)
{
return Expression.TypeIs(expr, b.TypeOperand);
}
return b;
}
///
/// ConstantExpression visit method
///
/// The ConstantExpression expression to visit
/// The visited ConstantExpression expression
internal virtual Expression VisitConstant(ConstantExpression c)
{
return c;
}
///
/// ConditionalExpression visit method
///
/// The ConditionalExpression expression to visit
/// The visited ConditionalExpression expression
internal virtual Expression VisitConditional(ConditionalExpression c)
{
Expression test = this.Visit(c.Test);
Expression iftrue = this.Visit(c.IfTrue);
Expression iffalse = this.Visit(c.IfFalse);
if (test != c.Test || iftrue != c.IfTrue || iffalse != c.IfFalse)
{
return Expression.Condition(test, iftrue, iffalse);
}
return c;
}
///
/// ParameterExpression visit method
///
/// The ParameterExpression expression to visit
/// The visited ParameterExpression expression
internal virtual Expression VisitParameter(ParameterExpression p)
{
return p;
}
///
/// MemberExpression visit method
///
/// The MemberExpression expression to visit
/// The visited MemberExpression expression
internal virtual Expression VisitMemberAccess(MemberExpression m)
{
Expression exp = this.Visit(m.Expression);
if (exp != m.Expression)
{
return Expression.MakeMemberAccess(exp, m.Member);
}
return m;
}
///
/// MethodCallExpression visit method
///
/// The MethodCallExpression expression to visit
/// The visited MethodCallExpression expression
internal virtual Expression VisitMethodCall(MethodCallExpression m)
{
Expression obj = this.Visit(m.Object);
IEnumerable args = this.VisitExpressionList(m.Arguments);
if (obj != m.Object || args != m.Arguments)
{
return Expression.Call(obj, m.Method, args);
}
return m;
}
///
/// Expression list visit method
///
/// The expression list to visit
/// The visited expression list
internal virtual ReadOnlyCollection VisitExpressionList(ReadOnlyCollection original)
{
List list = null;
for (int i = 0, n = original.Count; i < n; i++)
{
Expression p = this.Visit(original[i]);
if (list != null)
{
list.Add(p);
}
else if (p != original[i])
{
list = new List(n);
for (int j = 0; j < i; j++)
{
list.Add(original[j]);
}
list.Add(p);
}
}
if (list != null)
{
return new ReadOnlyCollection(list);
}
return original;
}
///
/// MemberAssignment visit method
///
/// The MemberAssignment to visit
/// The visited MemberAssignmentt
internal virtual MemberAssignment VisitMemberAssignment(MemberAssignment assignment)
{
Expression e = this.Visit(assignment.Expression);
if (e != assignment.Expression)
{
return Expression.Bind(assignment.Member, e);
}
return assignment;
}
///
/// MemberMemberBinding visit method
///
/// The MemberMemberBinding to visit
/// The visited MemberMemberBinding
internal virtual MemberMemberBinding VisitMemberMemberBinding(MemberMemberBinding binding)
{
IEnumerable bindings = this.VisitBindingList(binding.Bindings);
if (bindings != binding.Bindings)
{
return Expression.MemberBind(binding.Member, bindings);
}
return binding;
}
///
/// MemberListBinding visit method
///
/// The MemberListBinding to visit
/// The visited MemberListBinding
internal virtual MemberListBinding VisitMemberListBinding(MemberListBinding binding)
{
IEnumerable initializers = this.VisitElementInitializerList(binding.Initializers);
if (initializers != binding.Initializers)
{
return Expression.ListBind(binding.Member, initializers);
}
return binding;
}
///
/// Binding List visit method
///
/// The Binding list to visit
/// The visited Binding list
internal virtual IEnumerable VisitBindingList(ReadOnlyCollection original)
{
List list = null;
for (int i = 0, n = original.Count; i < n; i++)
{
MemberBinding b = this.VisitBinding(original[i]);
if (list != null)
{
list.Add(b);
}
else if (b != original[i])
{
list = new List(n);
for (int j = 0; j < i; j++)
{
list.Add(original[j]);
}
list.Add(b);
}
}
if (list != null)
{
return list;
}
return original;
}
///
/// ElementInit expression list visit method
///
/// The ElementInit expression list to visit
/// The visited ElementInit expression list
internal virtual IEnumerable VisitElementInitializerList(ReadOnlyCollection original)
{
List list = null;
for (int i = 0, n = original.Count; i < n; i++)
{
ElementInit init = this.VisitElementInitializer(original[i]);
if (list != null)
{
list.Add(init);
}
else if (init != original[i])
{
list = new List(n);
for (int j = 0; j < i; j++)
{
list.Add(original[j]);
}
list.Add(init);
}
}
if (list != null)
{
return list;
}
return original;
}
///
/// LambdaExpression visit method
///
/// The LambdaExpression to visit
/// The visited LambdaExpression
internal virtual Expression VisitLambda(LambdaExpression lambda)
{
Expression body = this.Visit(lambda.Body);
if (body != lambda.Body)
{
return Expression.Lambda(lambda.Type, body, lambda.Parameters);
}
return lambda;
}
///
/// NewExpression visit method
///
/// The NewExpression to visit
/// The visited NewExpression
internal virtual NewExpression VisitNew(NewExpression nex)
{
IEnumerable args = this.VisitExpressionList(nex.Arguments);
if (args != nex.Arguments)
{
if (nex.Members != null)
{
return Expression.New(nex.Constructor, args, nex.Members);
}
else
{
return Expression.New(nex.Constructor, args);
}
}
return nex;
}
///
/// MemberInitExpression visit method
///
/// The MemberInitExpression to visit
/// The visited MemberInitExpression
internal virtual Expression VisitMemberInit(MemberInitExpression init)
{
NewExpression n = this.VisitNew(init.NewExpression);
IEnumerable bindings = this.VisitBindingList(init.Bindings);
if (n != init.NewExpression || bindings != init.Bindings)
{
return Expression.MemberInit(n, bindings);
}
return init;
}
///
/// ListInitExpression visit method
///
/// The ListInitExpression to visit
/// The visited ListInitExpression
internal virtual Expression VisitListInit(ListInitExpression init)
{
NewExpression n = this.VisitNew(init.NewExpression);
IEnumerable initializers = this.VisitElementInitializerList(init.Initializers);
if (n != init.NewExpression || initializers != init.Initializers)
{
return Expression.ListInit(n, initializers);
}
return init;
}
///
/// NewArrayExpression visit method
///
/// The NewArrayExpression to visit
/// The visited NewArrayExpression
internal virtual Expression VisitNewArray(NewArrayExpression na)
{
IEnumerable exprs = this.VisitExpressionList(na.Expressions);
if (exprs != na.Expressions)
{
if (na.NodeType == ExpressionType.NewArrayInit)
{
return Expression.NewArrayInit(na.Type.GetElementType(), exprs);
}
else
{
return Expression.NewArrayBounds(na.Type.GetElementType(), exprs);
}
}
return na;
}
///
/// InvocationExpression visit method
///
/// The InvocationExpression to visit
/// The visited InvocationExpression
internal virtual Expression VisitInvocation(InvocationExpression iv)
{
IEnumerable args = this.VisitExpressionList(iv.Arguments);
Expression expr = this.Visit(iv.Expression);
if (args != iv.Arguments || expr != iv.Expression)
{
return Expression.Invoke(expr, args);
}
return iv;
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//----------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//
// Expression Visitor
//
//
// @owner [....]
//---------------------------------------------------------------------
#if ASTORIA_SERVER
namespace System.Data.Services
#else
namespace System.Data.Services.Client
#endif
{
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq.Expressions;
///
/// base vistor class for walking an expression tree bottom up.
///
internal abstract class ExpressionVisitor
{
///
/// Main visit method for ExpressionVisitor
///
/// The expression to visit
/// The visited expression
internal virtual Expression Visit(Expression exp)
{
if (exp == null)
{
return exp;
}
switch (exp.NodeType)
{
case ExpressionType.UnaryPlus:
case ExpressionType.Negate:
case ExpressionType.NegateChecked:
case ExpressionType.Not:
case ExpressionType.Convert:
case ExpressionType.ConvertChecked:
case ExpressionType.ArrayLength:
case ExpressionType.Quote:
case ExpressionType.TypeAs:
return this.VisitUnary((UnaryExpression)exp);
case ExpressionType.Add:
case ExpressionType.AddChecked:
case ExpressionType.Subtract:
case ExpressionType.SubtractChecked:
case ExpressionType.Multiply:
case ExpressionType.MultiplyChecked:
case ExpressionType.Divide:
case ExpressionType.Modulo:
#if !ASTORIA_CLIENT
case ExpressionType.Power:
#endif
case ExpressionType.And:
case ExpressionType.AndAlso:
case ExpressionType.Or:
case ExpressionType.OrElse:
case ExpressionType.LessThan:
case ExpressionType.LessThanOrEqual:
case ExpressionType.GreaterThan:
case ExpressionType.GreaterThanOrEqual:
case ExpressionType.Equal:
case ExpressionType.NotEqual:
case ExpressionType.Coalesce:
case ExpressionType.ArrayIndex:
case ExpressionType.RightShift:
case ExpressionType.LeftShift:
case ExpressionType.ExclusiveOr:
return this.VisitBinary((BinaryExpression)exp);
case ExpressionType.TypeIs:
return this.VisitTypeIs((TypeBinaryExpression)exp);
case ExpressionType.Conditional:
return this.VisitConditional((ConditionalExpression)exp);
case ExpressionType.Constant:
return this.VisitConstant((ConstantExpression)exp);
case ExpressionType.Parameter:
return this.VisitParameter((ParameterExpression)exp);
case ExpressionType.MemberAccess:
return this.VisitMemberAccess((MemberExpression)exp);
case ExpressionType.Call:
return this.VisitMethodCall((MethodCallExpression)exp);
case ExpressionType.Lambda:
return this.VisitLambda((LambdaExpression)exp);
case ExpressionType.New:
return this.VisitNew((NewExpression)exp);
case ExpressionType.NewArrayInit:
case ExpressionType.NewArrayBounds:
return this.VisitNewArray((NewArrayExpression)exp);
case ExpressionType.Invoke:
return this.VisitInvocation((InvocationExpression)exp);
case ExpressionType.MemberInit:
return this.VisitMemberInit((MemberInitExpression)exp);
case ExpressionType.ListInit:
return this.VisitListInit((ListInitExpression)exp);
default:
throw new NotSupportedException(Strings.ALinq_UnsupportedExpression(exp.NodeType.ToString()));
}
}
///
/// MemberBinding visit method
///
/// The MemberBinding expression to visit
/// The visited MemberBinding expression
internal virtual MemberBinding VisitBinding(MemberBinding binding)
{
switch (binding.BindingType)
{
case MemberBindingType.Assignment:
return this.VisitMemberAssignment((MemberAssignment)binding);
case MemberBindingType.MemberBinding:
return this.VisitMemberMemberBinding((MemberMemberBinding)binding);
case MemberBindingType.ListBinding:
return this.VisitMemberListBinding((MemberListBinding)binding);
default:
throw new NotSupportedException(Strings.ALinq_UnsupportedExpression(binding.BindingType.ToString()));
}
}
///
/// ElementInit visit method
///
/// The ElementInit expression to visit
/// The visited ElementInit expression
internal virtual ElementInit VisitElementInitializer(ElementInit initializer)
{
ReadOnlyCollection arguments = this.VisitExpressionList(initializer.Arguments);
if (arguments != initializer.Arguments)
{
return Expression.ElementInit(initializer.AddMethod, arguments);
}
return initializer;
}
///
/// UnaryExpression visit method
///
/// The UnaryExpression expression to visit
/// The visited UnaryExpression expression
internal virtual Expression VisitUnary(UnaryExpression u)
{
Expression operand = this.Visit(u.Operand);
if (operand != u.Operand)
{
return Expression.MakeUnary(u.NodeType, operand, u.Type, u.Method);
}
return u;
}
///
/// BinaryExpression visit method
///
/// The BinaryExpression expression to visit
/// The visited BinaryExpression expression
internal virtual Expression VisitBinary(BinaryExpression b)
{
Expression left = this.Visit(b.Left);
Expression right = this.Visit(b.Right);
Expression conversion = this.Visit(b.Conversion);
if (left != b.Left || right != b.Right || conversion != b.Conversion)
{
if (b.NodeType == ExpressionType.Coalesce && b.Conversion != null)
{
return Expression.Coalesce(left, right, conversion as LambdaExpression);
}
else
{
return Expression.MakeBinary(b.NodeType, left, right, b.IsLiftedToNull, b.Method);
}
}
return b;
}
///
/// TypeBinaryExpression visit method
///
/// The TypeBinaryExpression expression to visit
/// The visited TypeBinaryExpression expression
internal virtual Expression VisitTypeIs(TypeBinaryExpression b)
{
Expression expr = this.Visit(b.Expression);
if (expr != b.Expression)
{
return Expression.TypeIs(expr, b.TypeOperand);
}
return b;
}
///
/// ConstantExpression visit method
///
/// The ConstantExpression expression to visit
/// The visited ConstantExpression expression
internal virtual Expression VisitConstant(ConstantExpression c)
{
return c;
}
///
/// ConditionalExpression visit method
///
/// The ConditionalExpression expression to visit
/// The visited ConditionalExpression expression
internal virtual Expression VisitConditional(ConditionalExpression c)
{
Expression test = this.Visit(c.Test);
Expression iftrue = this.Visit(c.IfTrue);
Expression iffalse = this.Visit(c.IfFalse);
if (test != c.Test || iftrue != c.IfTrue || iffalse != c.IfFalse)
{
return Expression.Condition(test, iftrue, iffalse);
}
return c;
}
///
/// ParameterExpression visit method
///
/// The ParameterExpression expression to visit
/// The visited ParameterExpression expression
internal virtual Expression VisitParameter(ParameterExpression p)
{
return p;
}
///
/// MemberExpression visit method
///
/// The MemberExpression expression to visit
/// The visited MemberExpression expression
internal virtual Expression VisitMemberAccess(MemberExpression m)
{
Expression exp = this.Visit(m.Expression);
if (exp != m.Expression)
{
return Expression.MakeMemberAccess(exp, m.Member);
}
return m;
}
///
/// MethodCallExpression visit method
///
/// The MethodCallExpression expression to visit
/// The visited MethodCallExpression expression
internal virtual Expression VisitMethodCall(MethodCallExpression m)
{
Expression obj = this.Visit(m.Object);
IEnumerable args = this.VisitExpressionList(m.Arguments);
if (obj != m.Object || args != m.Arguments)
{
return Expression.Call(obj, m.Method, args);
}
return m;
}
///
/// Expression list visit method
///
/// The expression list to visit
/// The visited expression list
internal virtual ReadOnlyCollection VisitExpressionList(ReadOnlyCollection original)
{
List list = null;
for (int i = 0, n = original.Count; i < n; i++)
{
Expression p = this.Visit(original[i]);
if (list != null)
{
list.Add(p);
}
else if (p != original[i])
{
list = new List(n);
for (int j = 0; j < i; j++)
{
list.Add(original[j]);
}
list.Add(p);
}
}
if (list != null)
{
return new ReadOnlyCollection(list);
}
return original;
}
///
/// MemberAssignment visit method
///
/// The MemberAssignment to visit
/// The visited MemberAssignmentt
internal virtual MemberAssignment VisitMemberAssignment(MemberAssignment assignment)
{
Expression e = this.Visit(assignment.Expression);
if (e != assignment.Expression)
{
return Expression.Bind(assignment.Member, e);
}
return assignment;
}
///
/// MemberMemberBinding visit method
///
/// The MemberMemberBinding to visit
/// The visited MemberMemberBinding
internal virtual MemberMemberBinding VisitMemberMemberBinding(MemberMemberBinding binding)
{
IEnumerable bindings = this.VisitBindingList(binding.Bindings);
if (bindings != binding.Bindings)
{
return Expression.MemberBind(binding.Member, bindings);
}
return binding;
}
///
/// MemberListBinding visit method
///
/// The MemberListBinding to visit
/// The visited MemberListBinding
internal virtual MemberListBinding VisitMemberListBinding(MemberListBinding binding)
{
IEnumerable initializers = this.VisitElementInitializerList(binding.Initializers);
if (initializers != binding.Initializers)
{
return Expression.ListBind(binding.Member, initializers);
}
return binding;
}
///
/// Binding List visit method
///
/// The Binding list to visit
/// The visited Binding list
internal virtual IEnumerable VisitBindingList(ReadOnlyCollection original)
{
List list = null;
for (int i = 0, n = original.Count; i < n; i++)
{
MemberBinding b = this.VisitBinding(original[i]);
if (list != null)
{
list.Add(b);
}
else if (b != original[i])
{
list = new List(n);
for (int j = 0; j < i; j++)
{
list.Add(original[j]);
}
list.Add(b);
}
}
if (list != null)
{
return list;
}
return original;
}
///
/// ElementInit expression list visit method
///
/// The ElementInit expression list to visit
/// The visited ElementInit expression list
internal virtual IEnumerable VisitElementInitializerList(ReadOnlyCollection original)
{
List list = null;
for (int i = 0, n = original.Count; i < n; i++)
{
ElementInit init = this.VisitElementInitializer(original[i]);
if (list != null)
{
list.Add(init);
}
else if (init != original[i])
{
list = new List(n);
for (int j = 0; j < i; j++)
{
list.Add(original[j]);
}
list.Add(init);
}
}
if (list != null)
{
return list;
}
return original;
}
///
/// LambdaExpression visit method
///
/// The LambdaExpression to visit
/// The visited LambdaExpression
internal virtual Expression VisitLambda(LambdaExpression lambda)
{
Expression body = this.Visit(lambda.Body);
if (body != lambda.Body)
{
return Expression.Lambda(lambda.Type, body, lambda.Parameters);
}
return lambda;
}
///
/// NewExpression visit method
///
/// The NewExpression to visit
/// The visited NewExpression
internal virtual NewExpression VisitNew(NewExpression nex)
{
IEnumerable args = this.VisitExpressionList(nex.Arguments);
if (args != nex.Arguments)
{
if (nex.Members != null)
{
return Expression.New(nex.Constructor, args, nex.Members);
}
else
{
return Expression.New(nex.Constructor, args);
}
}
return nex;
}
///
/// MemberInitExpression visit method
///
/// The MemberInitExpression to visit
/// The visited MemberInitExpression
internal virtual Expression VisitMemberInit(MemberInitExpression init)
{
NewExpression n = this.VisitNew(init.NewExpression);
IEnumerable bindings = this.VisitBindingList(init.Bindings);
if (n != init.NewExpression || bindings != init.Bindings)
{
return Expression.MemberInit(n, bindings);
}
return init;
}
///
/// ListInitExpression visit method
///
/// The ListInitExpression to visit
/// The visited ListInitExpression
internal virtual Expression VisitListInit(ListInitExpression init)
{
NewExpression n = this.VisitNew(init.NewExpression);
IEnumerable initializers = this.VisitElementInitializerList(init.Initializers);
if (n != init.NewExpression || initializers != init.Initializers)
{
return Expression.ListInit(n, initializers);
}
return init;
}
///
/// NewArrayExpression visit method
///
/// The NewArrayExpression to visit
/// The visited NewArrayExpression
internal virtual Expression VisitNewArray(NewArrayExpression na)
{
IEnumerable exprs = this.VisitExpressionList(na.Expressions);
if (exprs != na.Expressions)
{
if (na.NodeType == ExpressionType.NewArrayInit)
{
return Expression.NewArrayInit(na.Type.GetElementType(), exprs);
}
else
{
return Expression.NewArrayBounds(na.Type.GetElementType(), exprs);
}
}
return na;
}
///
/// InvocationExpression visit method
///
/// The InvocationExpression to visit
/// The visited InvocationExpression
internal virtual Expression VisitInvocation(InvocationExpression iv)
{
IEnumerable args = this.VisitExpressionList(iv.Arguments);
Expression expr = this.Visit(iv.Expression);
if (args != iv.Arguments || expr != iv.Expression)
{
return Expression.Invoke(expr, args);
}
return iv;
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- WebServiceHandler.cs
- DesignBindingValueUIHandler.cs
- FirewallWrapper.cs
- StrongNamePublicKeyBlob.cs
- DllHostedComPlusServiceHost.cs
- DateTimeOffset.cs
- sqlcontext.cs
- PatternMatchRules.cs
- WebPartDescription.cs
- HtmlValidationSummaryAdapter.cs
- HostSecurityManager.cs
- Menu.cs
- unsafeIndexingFilterStream.cs
- RefreshPropertiesAttribute.cs
- BinaryObjectInfo.cs
- AnnotationMap.cs
- CacheDependency.cs
- ConfigXmlElement.cs
- TemplateKeyConverter.cs
- OperationFormatter.cs
- FontDriver.cs
- QuestionEventArgs.cs
- SqlFacetAttribute.cs
- SqlBulkCopyColumnMapping.cs
- QueryExtender.cs
- Message.cs
- TableRowGroup.cs
- DbDataRecord.cs
- D3DImage.cs
- _LocalDataStoreMgr.cs
- XhtmlBasicTextViewAdapter.cs
- baseaxisquery.cs
- Form.cs
- ImageMap.cs
- _LoggingObject.cs
- RenderDataDrawingContext.cs
- SimpleApplicationHost.cs
- InkCanvasSelection.cs
- WindowsListViewScroll.cs
- SatelliteContractVersionAttribute.cs
- InvalidComObjectException.cs
- PnrpPermission.cs
- WebConfigurationHost.cs
- ConsoleKeyInfo.cs
- CalendarSelectionChangedEventArgs.cs
- UserControlDocumentDesigner.cs
- PlainXmlWriter.cs
- DictionaryTraceRecord.cs
- SamlAdvice.cs
- Keywords.cs
- PeerHelpers.cs
- NotificationContext.cs
- X509CertificateInitiatorClientCredential.cs
- SystemResourceKey.cs
- ObjectDataSource.cs
- HtmlGenericControl.cs
- ServiceModelActivationSectionGroup.cs
- EFDataModelProvider.cs
- DetailsViewUpdatedEventArgs.cs
- KeyGestureConverter.cs
- datacache.cs
- AbandonedMutexException.cs
- WindowAutomationPeer.cs
- XmlSchemaAnnotated.cs
- FastPropertyAccessor.cs
- BoundField.cs
- Selection.cs
- COMException.cs
- CodeDirectoryCompiler.cs
- OptionUsage.cs
- XpsS0ValidatingLoader.cs
- followingsibling.cs
- DecoderReplacementFallback.cs
- ISAPIRuntime.cs
- RecordConverter.cs
- ServiceMemoryGates.cs
- ImageFormat.cs
- DataGridViewSelectedCellCollection.cs
- FreezableDefaultValueFactory.cs
- RectIndependentAnimationStorage.cs
- ToolStripControlHost.cs
- MultiView.cs
- LocationUpdates.cs
- log.cs
- CorrelationToken.cs
- DbBuffer.cs
- EventDescriptorCollection.cs
- ObjectListItem.cs
- DrawingGroup.cs
- SecurityDocument.cs
- GridItemProviderWrapper.cs
- MultiPageTextView.cs
- FixedSOMElement.cs
- Context.cs
- _StreamFramer.cs
- Interlocked.cs
- WindowsSpinner.cs
- FieldAccessException.cs
- DuplicateWaitObjectException.cs
- Subordinate.cs