protected override Expression VisitMember(MemberExpression e)
{
var isMember = e.Expression != null && e.Expression.NodeType == ExpressionType.Parameter;
var isNullableMember = e.Expression != null && e.Expression.NodeType == ExpressionType.MemberAccess
&& ((MemberExpression) e.Expression).Expression != null
&& ((MemberExpression) e.Expression).Expression.NodeType == ExpressionType.Parameter;
if (isMember || isNullableMember)
{
var memberNode = CreateNewMemberNode(e);
_nodes.AddNode(memberNode);
return e;
}
try
{
var value = e.Evaluate();
var constantExpression = Expression.Constant(value);
return Visit(constantExpression);
}
catch
{
var memberNode = CreateNewMemberNode(e);
_nodes.AddNode(memberNode);
return e;
}
}