Ideas for runtime loading of shared libraries.

[Jacob Carlborg]

On 2013-03-07 14:53, Johannes Pfau wrote:

> For OOP features it might be nice if we can iterate all classes that
> implement an Interface
>
> foreach(IWebPage page; lib)
>
> Although the question then is how to construct instances of these
> classes. Maybe the factory pattern is better for this.

Just iterate all classes, like ClassInfo.find does. Add a condition to 
check if a given class implements a given interface. If the correct 
class if found create it with Object.factory. Tango contains a module, 
tango.core.RuntimeTraits, with a function that checks if a class 
implements an interface. I'm pretty sure that Phobos has something similar.

We could create a standard plugin interface in Phobos or druntime, 
something like:

interface Plugin
{
     void initialize ();
     void terminate ();
}

Every plugin should implement this directly or indirectly. "initialize" 
would be called just after the plugin is loaded and "terminate" would be 
called just before unloading.

-- 
/Jacob Carlborg