[Issue 6579] New: Calling static method should *require* using type and not instance

d-bugmail at puremagic.com d-bugmail at puremagic.com
Tue Aug 30 05:33:45 PDT 2011


http://d.puremagic.com/issues/show_bug.cgi?id=6579

           Summary: Calling static method should *require* using type and
                    not instance
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: schveiguy at yahoo.com


--- Comment #0 from Steven Schveighoffer <schveiguy at yahoo.com> 2011-08-30 05:33:42 PDT ---
Consider:

struct S
{
   static int i;
   int x;
   static void reset() {i = i.init;}
}

S instance;
assert(instance.x == 0);
instance.x = 5;

instance.reset();

assert(instance.x == 0); // fails!

This appears to affect instance, but actually it does nothing to the instance,
it only affects the static data.

I think it should require using the type, via:

S.reset();

or

typeof(instance).reset();

This makes it clear that the instance plays no role in the function call.

This also paves the way for bug 3345

I think also this should apply to member fields.  However, enums and aliases
should continue to be accessible using the instance.

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