A few questions

[Era Scarecrow]

On Friday, 27 July 2012 at 19:01:39 UTC, Namespace wrote:
> I also get null references (and every time I hate D a bit 
> more), but mostly my classmates and other friends whom I've 
> shown D. And most of them are already back to C++ or C#. And I 
> can understand them.
> If you want that D is sometimes taken seriously (and it reached 
> only if you win more people for D), then perhaps you should do 
> something for more usability.
> Such small handy shorthands are easy to implement and even more 
> understandable as a stacktrace.

  I've noticed when debugging the 'segfault' is rather vague, but 
it depends on if you have something to catch it. In some of my 
code I end up surrounding the main function in a try/catch 
wrapper that prints the appropriate data; Like using VisualD.

void main() {
   try {
     someFunc(null);
   } catch (Throwable x) {
     writeln(x);
   }
}

void someInnerFunc(Object o)
in {
   assert(o, "Yo! my object's NULL!");
}
body {
   //something
}
void someFunc(Object o) {
   someInnerFunc(o); //for stacktrace
}

core.exception.AssertError at test.d(111): Yo! my object's NULL!
----------------
c:\Users\Era\My Documents\progs\d\test.d(119): void 
test.someFunc(Object)
c:\Users\Era\My Documents\progs\d\test.d(103): _Dmain



change inner function to:

void someInnerFunc(Object o) {
   o.toHash;
   //something
}

object.Error: Access Violation
----------------
c:\Users\Era\My Documents\progs\d\test.d(116): void 
test.someFunc(Object)
c:\Users\Era\My Documents\progs\d\test.d(103): _Dmain