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Re: namespace alias in C++ to C#

by lacktrum :: Rate this Message:

wsfulton wrote:

lacktrum wrote:
>
> tlackey wrote:
>> I am new to using swig and I am having a problem accessing a class in an
>> aliased namespace correctly.
>>
>> the header file:
>>
>> namespace bar=foo;
>>
>> namespace foo {
>> class Handle
>> public:
>> ....
>> };
>> }
>>
>> swig file:
>>
>>
>> class Handle
>> public:
>> ....
>> };
>>
>> When the swig wrapper is created the code is like:
>>
>> bar::Handle;
>>
>> and it creates a generic swig pointer for it:
>> SWIGTYPE_p_bar_Handle
>>
>> It also creates the C# proxy class for the generic pointer
>> SWIGTYPE_p_bar_Handle.cs and the Handle.cs class.
>>
>> How do I get the generic swig pointer and the Handle to be the same?
>>
>> Thanks,
>>
>> Truman Lackey
>>
>>
>>
>> ------------------------------------------------------------------------------
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>> Swig-user@lists.sourceforge.net
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>>
>>
>
> To answer my own question I placed the following in my .i file:
>
> namespace foo {
> class Handle
> public:
> ....
> };
> }
>
> class Handle
> public:
> ....
> };
>
> This handles both namespaced references to Handle and non namespace
> references.
> Is there possible a more elegant way to resolve this?
>
> As it is right now I have a lot of class code replication in my SWIG file.
>
Did you see my reply? If you give SWIG the correct C++ code it should do
the right thing. You can do this by replicating the classes *exactly* in
your interface file or more simply use %include of the original headers.

William

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Thanks for the input. But I still have a problem with the aliased namespace. I can get it halfway working. Meaning I can either get bar::Handle to work or foo::Handle but not both.

The way the code works is that i have a namespace of say foo that is wrapped by other code that aliases foo to bar. When I look at the c++ code created by swig for these header files I have foo::Handle and bar::Handle in the wrapper code. I have tried various means to get them to be the same types including using %include on the header files. When I use a typedef it seems to ignore it. Do you have any other ideas on how I can get this working?

Thanks,

Truman

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