[Swig-user] C++, ruby, and director question

[Keith T. G. <kg...@kg...>]

Since directors are supported for ruby, python, and C#/.NET, and those are
the three languages I care about for the project I'm working on, I thought
I'd give them a try rather than go and build a bunch of support classes for
each language.

I'm running into a problem where I think I'm not fully understanding swig or
something swig is doing.

Since I know ruby the best, I'm starting there.  Here is the basics of what
I have:

%module(directors="1") test
%feature("director") Logger;
class Logger {
  public:
    enum Type { RECEIVED, SENT, INFORMATIONAL };
    virtual ~Logger();
    virtual void logData(Type type, std::string data) = 0;
};

class Session {
  public:
    Session();
    void setLogger(Logger* logger);
};

After running swig and compiling the ruby module, I have the following ruby
code.

require 'test'
class MyLogger < Logger
  def initialize()
    @file = File.open("/tmp/stuff", 'w')
  end

  def logData(type, data)
    @file << type << " " << data << "\n"
  end
end

session = Test::Session.new
logger = MyLogger.new
session.SetLogger(logger)

Running that, I get the following error:
ObjectPreviouslyDeleted: Expected argument 1 of type Logger *, but got
MyLogger #<MyLogger:0x5aca6c>
        in SWIG method 'setLogger'
        from (irb):16:in `setLogger'
        from (irb):16

I know I'm missing something small but obvious that I just can't see.  Any
pointers on where I should look?

Keith

-- 
 Keith T. Garner                                        kg...@kg...
                "Make no little plans; they have no magic to
                   stir men's blood." - Daniel H. Burnham