[Swig-user] Swig preprocessor

[az az <azr...@ho...>]

Hi,

 

I'm trying to extending the %attribute swig macro to avoid giving the name of the getter/setter.

To do such job, i've created an %autoAttribute macro:

 


%include "attribute.i"

#ifndef MakeAttributeGetter(AttributeName)

#define MakeAttributeGetter(AttributeName) get ## AttributeName

#endif

#ifndef MakeAttributeSetter(AttributeName)

#define MakeAttributeSetter(AttributeName) set ## AttributeName

#endif

%define %autoAttribute(Class, AttributeType, AttributeName)

%attribute(Class, AttributeType, AttributeName, MakeAttributeGetter(AttributeName), MakeAttributeGetter(AttributeName));

%enddef

 

But it would be great if the user of autoattribute could change the "get" string directly with a define, for instance:
 
#define AGETTER get_
 
%include "autoattribute.i"
 
class Foo
{
    public:
       int get_Toto();
       void set_Toto(int value);
}
 
%autoAttribute(Foo, int, Toto);
 
But i'm stuck because the ## operator is done before the resolution of the "defines" and the generated code lookslike
    #define Foo_Toto_get(self_) self_->AGETTERToto()
instead of:
    #define Foo_Toto_get(self_) self_->get_Toto()
 
Is there a way to make it work as expected?
 
Another couple of questions:
Can we infers the attribute type from the return type of the setter?
Can we make a rule to automatically create attributes when function start with "get" or "set" (kind of name-mapping instead of type-mapping).
 
Thanks a lot for your time and maybe your answers.
I've got a poor english, and i hope to be fully understandable. If not, do not hesitate to ask for precisions.
 
Best regards,
Greg
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