[Issue 5104] New: Forward reference error with member pure function S.fun(S s)

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=5104

           Summary: Forward reference error with member pure function
                    S.fun(S s)
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: rsinfu at gmail.com


--- Comment #0 from Shin Fujishiro <rsinfu at gmail.com> 2010-10-23 00:36:15 PDT ---
dmd trunk r727.  Forward reference error happens if a member pure function of
struct S has a parameter of the type S:
--------------------
struct S
{
    bool fun(S s) pure { return true; }
}
--------------------
% dmd -o- -c test.d
test.d(2): Error: struct test.S no size yet for forward reference
--------------------

The error happens in TypeStruct::hasPointers() called from
TypeFunction::semantic() around line 5011 of mtype.c:
--------------------
            }
        }
        Type *t = fparam->type->toBasetype();
>>      if (!t->hasPointers())
            continue;
        if (t->mod & (MODimmutable | MODwild))
            continue;
--------------------

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