• Zekereth (29/29) Jul 11 2016 Here's the basic code I'm playing with:
• Kagamin (8/8) Jul 12 2016 Store a wrapper instead of the actual function:
• Zekereth (3/11) Jul 12 2016 Thanks that is clever. Never would have thought of that. Thanks a

Zekereth <viserion.thrall gmail.com> writes:

Here's the basic code I'm playing with:

struct MyCmd
{
	Variant func;
	// Has other members.
}

MyCmd[string] functions_;

void addCommand(T)(const string name, T func)
{
	MyCmd cmd;
	cmd.func = Variant(func);

	functions_[name] = cmd;
}

void process(string[] args) // args is only available at runtime.
{
	const string name = args[0]; // Name of the command

	if(name in functions_)
	{
		MyCmd cmd = functions_[name];
		cmd.func(/*Call with proper number of arguments converted to 
the proper type*/);
	}
}

I initially got idea from the D Cookbook Chapter Reflection: 
Creating a command-line function caller. But the code has to 
reside in the same module as the functions it will use.

So I arrived at this code but can't figure out how to call the 
actual stored function.

Thanks!

Kagamin <spam here.lot> writes:

Store a wrapper instead of the actual function:
void wrapper(alias F)(string[] args)
{
   (convert args to F arguments) and invoke
}

cmd.func = &wrapper!someFunc;

string[] args;
cmd.func(args);

Zekereth <viserion.thrall gmail.com> writes:

On Tuesday, 12 July 2016 at 08:34:03 UTC, Kagamin wrote:
 Store a wrapper instead of the actual function:
 void wrapper(alias F)(string[] args)
 {
   (convert args to F arguments) and invoke
 }

 cmd.func = &wrapper!someFunc;

 string[] args;
 cmd.func(args);

Thanks that is clever. Never would have thought of that. Thanks a 
lot!