[Swig-devel] [ swig-Bugs-3530361 ] Cannot generate a director for just one function

[SourceForge.net <no...@so...>]

Bugs item #3530361, was opened at 2012-05-28 17:03
Message generated for change (Comment added) made by qwertie
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=101645&aid=3530361&group_id=1645

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: code generation (general)
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: David Piepgrass (qwertie)
Assigned to: Nobody/Anonymous (nobody)
Summary: Cannot generate a director for just one function

Initial Comment:
The documentation says "The %feature directive can be applied globally, to specific classes, and to specific methods." But it doesn't work as advertised, e.g.

%module(directors="1") DirectorBug
// generate a director for just Foo::bar()
%feature("director") Foo::bar; 
struct Foo {
   virtual void bar();
   virtual void baz();
};

With C# as the target, SWIG doesn't appear to generate any director-related code. With Java as the target, SWIG does not generate a director class although it does generate separate "Foo_bar" and "Foo_barSwigExplicitFoo" functions. No warnings/errors are issued. Possibly related to bug 3529601.

My SWIG Version: 2.0.6
Compiled with i586-mingw32msvc-g++ [i586-pc-mingw32msvc]
Configured options: +pcre

----------------------------------------------------------------------

>Comment By: David Piepgrass (qwertie)
Date: 2012-06-01 10:24

Message:
I've got a class where with 23 virtual functions and I only want directors
for 3 of them. At first I made a %nodirector statement for each of the 20
unwanted functions, but then I thought of an easier workaround. In my
header file I do:

#ifdef SWIG
	#define INTERNAL protected
	#define VIRTUAL_IN_CPP
#else
	#define INTERNAL public
	#define VIRTUAL_IN_CPP virtual
#endif

Then instead of "virtual", I use "VIRTUAL_IN_CPP" on the functions for
which I don't want directors (and INTERNAL for public members that I don't
want wrapped at all). Of course, such a workaround only applies if you can
modify the original header files.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=101645&aid=3530361&group_id=1645