Is the world coming to an end?

[Andrej Mitrovic]

On 4/3/11, Nick Sabalausky <a at a.a> wrote:
> I've always thought that we should be able to do something like this:
>
> template foo(int val)
> {
>     enum foo = val.meta.argString;
> }
> static assert(foo!(2+3) == "2+3");
>

I wish we had some introspection to get the lines of code inside of a
function. But it's still pretty cool that you can pass expressions to
functions and automatically construct delegates. See here:

import std.stdio;

void main()
{
    int x;
	
    foo(false, x = 5);
    assert(x != 5);

    foo(true, x = 5);
    assert(x == 5);
}

void foo(bool doit, int delegate()[] dgs ...)
{
    if (doit)
        dgs[0]();
}

I wonder how many people know about this feature. I just bumped into
it a few days ago while looking through the docs.