[Issue 2622] New: ref returns not allowed in complex template

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=2622

           Summary: ref returns not allowed in complex template
           Product: D
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla at digitalmars.com
        ReportedBy: andrei at metalanguage.com


import std.typecons;

struct Proxy(R...)
{
    Tuple!(int*, float*) ptrs;
    // enable this.at!(ct_constant)
    ref R[i] at(int i)();
}

void main()
{
    Proxy!(int, float) p;
    auto x = p.at!(1);
}

fails to compile with the error message:

variable test.Proxy!(int,float).Proxy.i only parameters or foreach declarations
can be ref


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