Reflection and Operator Overloads in C#

Question

Here\'s the deal. I\'ve got a program that will load a given assembly, parse through all Types and their Members and compile a TreeView (very similar to old MSDN site) and

Answer 1

Operator overloads do get the IsSpecialName flag set to true. And if you implement the methods by explicitly giving them a name like op_* that flag is set to false.

Answer 2

To add to the Wiser's post: the same thread ( http://forums.devx.com/showthread.php?55322-Operator-Overloading.....C-can-do-it....&p=208952#post208952 ) mentions some additional operators operators:

Some additions - see CLI Partition 1, section 10.3.
 op_UnsignedRightShiftAssignment
 op_RightShiftAssignment
 op_MemberSelection
 op_PointerToMemberSelection
 op_LogicalNot
 op_True
 op_False
 op_AddressOf
 op_PointerDereference

These operators are seen in The Common Language Infrastructure Annotated Standard book: http://books.google.ru/books?id=50PhgS8vjhwC&pg=PA111&lpg=PA111&dq=op_PointerToMemberSelection&source=bl&ots=vZIC0nA9sW&sig=4hTfAAWGkaKirgBQ4I1yBnK_D2M&hl=en&sa=X&ei=YsB2ULvAMuHx4QT25YCYAw&ved=0CB0Q6AEwAA#v=onepage&q=op_PointerToMemberSelection&f=false

Some handy table can also be found here: http://en.csharp-online.net/Common_Type_System%E2%80%94Operator_Overloading

Answer 3

The op_ naming convention is a standard or defacto standard for .net. When reflecting, I would do something like this:

public void GenerateDocForMethod(MethodInfo method)
{
    if(method.Name.StartsWith("op_"))
        GenerateDocForOperator(method);
    else
        GenerateDocForStandardMethod(method);
}

public void GenerateDocForOperator(MethodInfo method)
{
    switch(method.Name)
    {
        case "op_Addition":
        //generate and handle other cases...

        //handle methods that just happen to start with op_
        default:
            GenerateDocForStandardMethod(method);
    }
}

public void GenerateDocForStandardMethod(MethodInfo method)
{
    //generate doc
}

GenerateDocForOperator will switch on all of the overloadable operators (don't forget implicit and explicit conversions). If the method name is not one of the standard operator names, it calls the GenerateDocForStandardMethod. I couldn't find an exhaustive list of operator method names but I could probably provide a complete list if you really need it.

EDIT: Here's a list of the method names of overloadable operators (taken from http://forums.devx.com/showthread.php?55322-Operator-Overloading.....C-can-do-it....&p=208952#post208952):

op_Implicit
op_Explicit
op_Addition
op_Subtraction
op_Multiply
op_Division
op_Modulus
op_ExclusiveOr
op_BitwiseAnd
op_BitwiseOr
op_LogicalAnd
op_LogicalOr
op_Assign
op_LeftShift
op_RightShift
op_SignedRightShift
op_UnsignedRightShift
op_Equality
op_GreaterThan
op_LessThan
op_Inequality
op_GreaterThanOrEqual
op_LessThanOrEqual
op_MultiplicationAssignment
op_SubtractionAssignment
op_ExclusiveOrAssignment
op_LeftShiftAssignment
op_ModulusAssignment
op_AdditionAssignment
op_BitwiseAndAssignment
op_BitwiseOrAssignment
op_Comma
op_DivisionAssignment
op_Decrement
op_Increment
op_UnaryNegation
op_UnaryPlus
op_OnesComplement