On Wednesday, 27 February 2013 at 23:34:42 UTC, Walter Bright
wrote:
On 2/27/2013 2:55 PM, Nick Sabalausky wrote:
I like that, but "run arbitrary code at top level" may be a
bit of a
problem because it conflicts with allowing forward references.
Ie, for example:
void foo() { bar(); }
void bar() { i = 3; }
int i;
vs:
void main() {
void foo() { bar(); }
void bar() { i = 3; }
int i;
}
The first one works, but the second doesn't. And my
understanding is
that the second one not working is a deliberate thing related
to
not being in a declaration-only context.
It's a little more than that. People have a natural view of
function bodies as executing top down. Functions also tend to
be simple enough that this makes sense. People have a natural
view outside functions as everything happening in parallel.
Plus, this is really hard to ensure that everything is
initialized properly without going eager with setting to init.
