private static bool IsNullExpression(Expression exp)
{
if (exp.NodeType == ExpressionType.Constant)
{
ConstantExpression constantExpression = (ConstantExpression)exp;
return(constantExpression.Value == null);
}
if (exp.NodeType == ExpressionType.Convert || exp.NodeType == ExpressionType.ConvertChecked)
{
UnaryExpression unaryExpression = (UnaryExpression)exp;
return(ConditionalExpressionToXmlConverter.IsNullExpression(unaryExpression.Operand));
}
return(false);
}
//Edited for .NET Core
private void Write(Expression exp)
{
ExpressionType nodeType = exp.NodeType;
switch (nodeType)
{
case ExpressionType.AndAlso:
case ExpressionType.GreaterThan:
case ExpressionType.GreaterThanOrEqual:
case ExpressionType.LessThan:
case ExpressionType.LessThanOrEqual:
break;
case ExpressionType.ArrayLength:
case ExpressionType.ArrayIndex:
case ExpressionType.Coalesce:
case ExpressionType.Conditional:
case ExpressionType.Divide:
case ExpressionType.ExclusiveOr:
case ExpressionType.Invoke:
case ExpressionType.Lambda:
case ExpressionType.LeftShift:
case ExpressionType.ListInit:
goto IL_71A;
case ExpressionType.Call:
{
MethodCallExpression methodCallExpression = (MethodCallExpression)exp;
bool flag = false;
if (methodCallExpression.Object == null)
{
flag = true;
this.m_writer.WriteStartElement("ExpressionStaticMethod");
string serverTypeId = ConditionalExpressionToXmlConverter.GetServerTypeId(methodCallExpression.Method.DeclaringType);
if (string.IsNullOrEmpty(serverTypeId))
{
throw new ClientRequestException(Resources.GetString("NotSupportedExpression", new object[]
{
this.m_condition.ToString()
}));
}
this.m_writer.WriteAttributeString("TypeId", serverTypeId);
this.m_writer.WriteAttributeString("Name", ConditionalExpressionToXmlConverter.GetMemberName(methodCallExpression.Method));
}
else
{
this.m_writer.WriteStartElement("ExpressionMethod");
this.m_writer.WriteAttributeString("Name", ConditionalExpressionToXmlConverter.GetMemberName(methodCallExpression.Method));
this.Write(methodCallExpression.Object);
}
this.m_writer.WriteStartElement("Parameters");
foreach (Expression current in methodCallExpression.Arguments)
{
if (flag)
{
flag = false;
}
else
{
this.Write(current);
}
}
this.m_writer.WriteEndElement();
this.m_writer.WriteEndElement();
return;
}
case ExpressionType.Constant:
{
ConstantExpression constantExpression = (ConstantExpression)exp;
object value = constantExpression.Value;
//Edited for .NET Core
//if (value == null || value is ClientObject || value is ClientValueObject || value.GetType().IsPrimitive || value.GetType().IsEnum || value.GetType() == typeof(Guid) || value.GetType() == typeof(DateTime) || value.GetType() == typeof(string))
if (value == null || value is ClientObject || value is ClientValueObject || value.GetType().GetTypeInfo().IsPrimitive || value.GetType().GetTypeInfo().IsEnum || value.GetType() == typeof(Guid) || value.GetType() == typeof(DateTime) || value.GetType() == typeof(string))
{
this.m_writer.WriteStartElement("ExpressionConstant");
DataConvert.WriteValueToXmlElement(this.m_writer, value, this.m_serializationContext);
this.m_writer.WriteEndElement();
return;
}
throw new ClientRequestException(Resources.GetString("NotSupportedExpression", new object[]
{
this.m_condition.ToString()
}));
}
case ExpressionType.Convert:
case ExpressionType.ConvertChecked:
{
UnaryExpression unaryExpression = (UnaryExpression)exp;
string value2 = null;
string value3 = null;
DataConvert.GetTypeNameOrTypeId(unaryExpression.Type, out value2, out value3);
if (!string.IsNullOrEmpty(value2))
{
this.m_writer.WriteStartElement("ExpressionConvert");
this.m_writer.WriteAttributeString("Type", value2);
this.Write(unaryExpression.Operand);
this.m_writer.WriteEndElement();
return;
}
if (string.IsNullOrEmpty(value3))
{
throw new ClientRequestException(Resources.GetString("NotSupportedExpression", new object[]
{
this.m_condition.ToString()
}));
}
if (this.m_serializationContext.Context.RequestSchemaVersion >= ClientSchemaVersions.Version15)
{
this.m_writer.WriteStartElement("ExpressionConvert");
this.m_writer.WriteAttributeString("TypeId", value3);
this.Write(unaryExpression.Operand);
this.m_writer.WriteEndElement();
return;
}
this.Write(unaryExpression.Operand);
return;
}
case ExpressionType.Equal:
goto IL_D7;
case ExpressionType.MemberAccess:
{
MemberExpression memberExpression = (MemberExpression)exp;
if (!(memberExpression.Member is PropertyInfo))
{
throw new ClientRequestException(Resources.GetString("NotSupportedExpression", new object[]
{
this.m_condition.ToString()
}));
}
if (ConditionalExpressionToXmlConverter.IsClientResultValueExpression(memberExpression))
{
this.Write(memberExpression.Expression);
return;
}
if (ConditionalExpressionToXmlConverter.IsServerObjectIsNullValue(memberExpression))
{
this.Write(memberExpression.Expression);
return;
}
if (memberExpression.Expression != null)
{
this.m_writer.WriteStartElement("ExpressionProperty");
this.m_writer.WriteAttributeString("Name", ConditionalExpressionToXmlConverter.GetMemberName(memberExpression.Member));
this.Write(memberExpression.Expression);
this.m_writer.WriteEndElement();
return;
}
this.m_writer.WriteStartElement("ExpressionStaticProperty");
string serverTypeId2 = ConditionalExpressionToXmlConverter.GetServerTypeId(memberExpression.Member.DeclaringType);
if (string.IsNullOrEmpty(serverTypeId2))
{
throw new ClientRequestException(Resources.GetString("NotSupportedExpression", new object[]
{
this.m_condition.ToString()
}));
}
this.m_writer.WriteAttributeString("TypeId", serverTypeId2);
this.m_writer.WriteAttributeString("Name", ConditionalExpressionToXmlConverter.GetMemberName(memberExpression.Member));
this.m_writer.WriteEndElement();
return;
}
default:
switch (nodeType)
{
case ExpressionType.Not:
{
this.m_writer.WriteStartElement(ConditionalExpressionToXmlConverter.s_opNames[exp.NodeType]);
UnaryExpression unaryExpression2 = (UnaryExpression)exp;
this.Write(unaryExpression2.Operand);
this.m_writer.WriteEndElement();
return;
}
case ExpressionType.NotEqual:
goto IL_D7;
case ExpressionType.Or:
goto IL_71A;
case ExpressionType.OrElse:
break;
case ExpressionType.Parameter:
{
ParameterExpression parameterExpression = (ParameterExpression)exp;
this.m_writer.WriteStartElement("ExpressionParameter");
this.m_writer.WriteAttributeString("Name", parameterExpression.Name);
this.m_writer.WriteEndElement();
return;
}
default:
{
if (nodeType != ExpressionType.TypeIs)
{
goto IL_71A;
}
TypeBinaryExpression typeBinaryExpression = (TypeBinaryExpression)exp;
string value4 = null;
string value5 = null;
DataConvert.GetTypeNameOrTypeId(typeBinaryExpression.TypeOperand, out value4, out value5);
if (string.IsNullOrEmpty(value4) && string.IsNullOrEmpty(value5))
{
throw new ClientRequestException(Resources.GetString("NotSupportedExpression", new object[]
{
this.m_condition.ToString()
}));
}
this.m_writer.WriteStartElement("ExpressionTypeIs");
if (!string.IsNullOrEmpty(value4))
{
this.m_writer.WriteAttributeString("Type", value4);
}
if (!string.IsNullOrEmpty(value5))
{
this.m_writer.WriteAttributeString("TypeId", value5);
}
this.Write(typeBinaryExpression.Expression);
this.m_writer.WriteEndElement();
return;
}
}
break;
}
BinaryExpression binaryExpression = (BinaryExpression)exp;
this.m_writer.WriteStartElement(ConditionalExpressionToXmlConverter.s_opNames[exp.NodeType]);
this.Write(binaryExpression.Left);
this.Write(binaryExpression.Right);
this.m_writer.WriteEndElement();
return;
IL_D7:
BinaryExpression binaryExpression2 = (BinaryExpression)exp;
if (ConditionalExpressionToXmlConverter.IsNullExpression(binaryExpression2.Left) || ConditionalExpressionToXmlConverter.IsNullExpression(binaryExpression2.Right) || (ConditionalExpressionToXmlConverter.IsSupportedEqualType(binaryExpression2.Right.Type) && ConditionalExpressionToXmlConverter.IsSupportedEqualType(binaryExpression2.Left.Type)))
{
this.m_writer.WriteStartElement(ConditionalExpressionToXmlConverter.s_opNames[exp.NodeType]);
this.Write(binaryExpression2.Left);
this.Write(binaryExpression2.Right);
this.m_writer.WriteEndElement();
return;
}
throw new ClientRequestException(Resources.GetString("NotSupportedExpression", new object[]
{
this.m_condition.ToString()
}));
IL_71A:
throw new ClientRequestException(Resources.GetString("NotSupportedExpression", new object[]
{
this.m_condition.ToString()
}));
}