[Issue 6995] New: [CTFE] can't interpret static template method

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=6995

           Summary: [CTFE] can't interpret static template method
           Product: D
           Version: D2
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: dawg at dawgfoto.de


--- Comment #0 from dawg at dawgfoto.de 2011-11-23 04:48:56 PST ---
struct Foo
{
    static size_t index(size_t v)()
    {
        return v;
    }
}

enum s = Foo.index!(0)();

----
CTFE internal error: cannot evaluate (Foo , index)() at compile time
----

In CallExp::semantic around line 7513:

        if (!f->needThis())
        {
            VarExp *ve = new VarExp(loc, f);
            e1 = new CommaExp(loc, ue->e1, ve);
            e1->type = f->type;
        }

a comma expression is created with ue->e1 being a TypeExp.
The CTFE interpretation can't handle this case in CallExp::interpret.

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