One thing I've been trying to figure out is how to do the
following in D:
class foo
{
string bar();
};
void foo::bar()
{
return "hello world!";
}
From what I can gather constructs like this just aren't allowed
in D, but I don't understand why, can anyone explain it please?
I know they're only in C++ because it uses #include instead of
importing compiled modules, but I find it hard to quickly get a
general idea of what a class is supposed to do when there are
function definitions strewn about it.
The other thing I want to know is about the mixin() command, and
what the limitations of it are; I know it runs an interpreted
version of D, but I get the feeling that it isn't as powerful as
the compiled version, because no one seems to have tried making
something like this:
class example : File
{
mixin(d.flex(`lex_file.l`));
mixin(d.bison(`bison_file.y`));
};
void main()
{
example("some_file.txt");
example.yyparse();
};
Is this because it isn't possible to do such things, or because
it would be rather pointless to do so compared to simpler
approaches, (in this case calling the C function output by
flex/bison).
