I'm new to D. Currently I'm programming in C# and I am looking
for a secondary, or even new main language that D might become.
One of the features that I found most promising in D is DbC.
However, I was very disappointed when I realized that the current
implementation is not much more than an assert that is evaluated
during runtime.
What i mean is.. look at this code:
void goCrazy(Person p)
in { assert(p); }
body {
// whatever
}
void main()
{
Person goku = null;
goCrazy(goku);
}
This a rather simple example where the compiler would be
perfectly able to realize that the procedure goCrazy won't be
called according it's specified contracts.
I know that these contracts would help me to find bugs faster or
better during testing. But if the compiler would do a static
verification you could even be sure that a procedure will always
be called correctly.
I'm sure in some cases it would indeed be possible to check
certain conditions at compile time. This includes ins, outs and
invariants.
Maybe a subset of checks could be implemented in D.. like range
checking of numerical values or something..
