Function traits at compile time

[Daniel Keep]

Victor Nakoryakov wrote:
> Hi all,

Hi.

> Consider code:
> 
> class MyClass(StructT)
> {
> ....
> }
> 
> I know, that StructT has a function `foo` in it, but I don't know number
> of parameters and their types, of course. Does anybody knows a way to
> extract types to use them in `static if ( is(...) )` statements?

Ok, this is ugly, and evil, evil hack, but it works.  The python script
that generated it is included if you need more and/or less arguments.

Some examples:

# NumberOfArgs!(&StructT.foo); // Number of arguments
# ReturnType!(&StructT.foo);   // Alias to return type
# ArgType!(&Struct.foo, n);    // Alias to type of 'n'th argument
#                              // (counting from 1).

Hope this helps :)

	-- Daniel

-- 
Unlike Knuth, I have neither proven or tried the above; it may not even
make sense.

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