[bind10-dev] cc message format description and routing daemon added to svn

[JINMEI Tatuya / 神明達哉]

At Tue, 22 Sep 2009 16:32:50 -0500,
Michael Graff <mgraff at isc.org> wrote:

> Over the next day or so, want to sketch out how this thing will work in
> a C++ world.  Ruby and Perl and Python should be trivial to implement,
> but C++ is a more strictly typed language, and is causing no end of pain
> to my brain.  I'm so used to being able to write:
> 
>   if foo.class == Array
>     ... do something with the array ...
>   elsif foo.class == Map
>     ... do something with the dictionary ...
>   elsif foo.class == String
>     ... you get the idea
>   end
> 
> and I just don't yet know how to do this in C++ without some sort of
> wrapper around each of these, and I want to avoid that.

Couldn't this be a more object-oriented way like this one?

class MessageComponent {
public:
    virtual void do_something() = 0;
};
class Array : public MessageComponent {
public:
    virtual void do_something();
};
class Map : public MessageComponent {
public:
    virtual void do_something();
};
class String : public MessageComponent {
public:
    virtual void do_something();
};

and then

MessageComponent* Foo;
Foo->do_something();

Or is it something you'd call a "wrapper" and would avoid?

---
JINMEI, Tatuya