[Issue 9990] New: templates with function alias cause forward reference error

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=9990

           Summary: templates with function alias cause forward reference
                    error
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: SebastianGraf at t-online.de


--- Comment #0 from Sebastian Graf <SebastianGraf at t-online.de> 2013-04-25 04:43:50 PDT ---
import std.stdio;

struct S { string field; }

auto initS() { return S("hi"); }

class C(alias init)
{
    private S _s;

    this() { _s = init(); }

    auto createProxy()
    {
        struct Proxy
        {
            private S* s;
            void print() { writeln(s.field); }
        }
        return Proxy(&_s);
    }
}

// alias SC = C!(initS);
static assert(!is(typeof(C!(initS))));

void main() 
{
    alias SC = C!(initS);
    auto c = new SC;
    c.createProxy().print();
}

This prints out "hi". If I alias SC at the global level instead, I get a
compiler error:
hi.d(24): Error: template instance hi.C!(initS) forward reference of function
initS

Line 24 is the line with the offending global alias. I think the global version
should also compile.

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