Re: Are there any default dmd optimizations

[Walter Bright]

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.