protected override Expression VisitUnary(UnaryExpression node)
{
switch (node.NodeType)
{
case ExpressionType.Convert:
case ExpressionType.ConvertChecked:
var me = node.Operand as MemberExpression;
var parameterExpression = node.GetParameterExpression();
var sType = parameterExpression?.Type;
if (me != null && (sType != null && me.Expression.NodeType == ExpressionType.MemberAccess && me.Type.IsLiteralType()))
{
//just pass me and let the FindMemberExpressionsVisitor handle removing of the value type
//me.Expression will not match the PathMap name.
return(Visit(me));
}
else
{
return(base.VisitUnary(node));
}
default:
return(base.VisitUnary(node));
}
}
protected override Expression VisitUnary(UnaryExpression node)
{
switch (node.NodeType)
{
case ExpressionType.Convert:
case ExpressionType.ConvertChecked:
var me = node.Operand as MemberExpression;
var parameterExpression = node.GetParameterExpression();
var sType = parameterExpression?.Type;
if (me != null && (sType != null && me.Expression.NodeType == ExpressionType.MemberAccess && (me.Type == typeof(string) || me.Type.GetTypeInfo().IsValueType || (me.Type.GetTypeInfo().IsGenericType &&
me.Type.GetGenericTypeDefinition() == typeof(Nullable <>) &&
Nullable.GetUnderlyingType(me.Type).GetTypeInfo().IsValueType))))
{
//ParameterExpression parameter = me.Expression.GetParameter();
//string fullName = me.Expression.GetPropertyFullName();
//return parameter.BuildExpression(sType, fullName);
return(Visit(me.Expression));
}
else
{
return(base.VisitUnary(node));
}
default:
return(base.VisitUnary(node));
}
}