Re: [Opencxx-users] Including selected source files

[Jean-Sebastien M. <js_...@us...>]

Raphael Yokoingawa de Camargo <rca...@im...> writes:

> Hi,
>
> I am new openc++ user and I'm using it in my doctoral research. I'm encountering
> some difficulties. 
>
> 1) Is there a way for me to access the entire program PTree instead of only the
> PTree relative to classes. I need this functionality because I will also use
> openc++ to manipulate C code (that don't have classes) and I need to know about
> all the function definitions in the code.

have a look in the documentation appendix.

>
> 2) Is there a way to only include some selected source files in the AST tree?
> The generated source trees are to big because they include all the system header
> files. It also makes much more difficult for me to analize the code, since I don
> know wich code is from the applications.

To do this, I use a special include directive for everything I don't
want openc++ to parse. The technic is rather gory and I'd like to know if
there is a nicer way to do it.

for example, in your occ file just do:

#include <common.hh>
// and then
include("iostream")


the common.hh contains something like:

metaclass Tools internal_Tools;
struct internal_Tools {};
# define include(FILE) void internal_Tools::include() { FILE; }


then in your openc++ compiler:

struct Tools : public Class
{
  static bool Initialize();
  void TranslateMemberFunction(Environment* env, Member& m);
  void TranslateClass(Environment* env);
};

bool Tools::Initialize()
{
  return Class::Initialize();
}

void Tools::TranslateClass(Environment* env)
{
  RemoveClass();
  return Class::TranslateClass(env);
}

void Tools::TranslateMemberFunction(Environment* env, Member& m)
{
  if (Ptree::Match(m.Name(),"include"))
    {
      //FIXME: delete the member instead of commenting out
      InsertBeforeToplevel(env,Ptree::Make("/*"));
      AppendAfterToplevel(env,Ptree::Make("*/"));

      for(PtreeIter i = m.FunctionBody()->Rest()->First(); !i.Empty(); i++)
        AppendAfterToplevel(env,Ptree::Make("\n#include %p",(*i)->First()));
    }
}


Hope this helps


-- 
js