[SOLVED] C++ class reflection: functors.

[sergey.shandar]

Hi,

 

When we add a C++ class to Unigine Script we can also add its functions:

 

class MyObject {
public:
// size      
void setSize(const vec3 &s) {          
   	size = s;      
}
private:
  ...
};
ExternClass<MyObject> *my_object = MakeExternClass<MyObject>();
my_object->addFunction("setSize",&MyObject::setSize);

 

Is it possible to add a functor? Something like

 

class MyObjectSetSize
{
public:
void operator()(MyObject &this_, const vec3 &s);
private:
  // some additional information here.
  ...
};
...
my_object->addFunctor<void, vec3>("setSize", MyObjectSetSize());

 

One way to do this, it is to make public the 'Unigine::ExternClass::add_function(...)' function. Are there other ways to add functors without hacking Unigine source code?

[frustum]

There are three function types which can be added into the ExternClass:

class Foo {
void foo(int a,int B) { }
void foo_const(int a,int B) const { }
};
void foo(Foo *foo,int a,int B) { }

 

You can wrap your functor into the static function which receives class pointer as the first argument.

[sergey.shandar]

You can wrap your functor into the static function which receives class pointer as the first argument.

 

The problem with static function is that it can't carry additional information.