[Issue 5336] New: Forward reference with template mixin and derived classes

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=5336

           Summary: Forward reference with template mixin and derived
                    classes
           Product: D
           Version: D1 & D2
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: robert at octarineparrot.com


--- Comment #0 from Robert Clipsham <robert at octarineparrot.com> 2010-12-09 16:04:45 GMT ---
The following source:
base.d
----
template Template(T:Base)
{
}
class Base
{
}
----

derived.d
----
import base;
mixin Template!(Derived);
class Derived : Base {}
----

Produces the errors:
----
derived.d(3): Error: class derived.Derived base class is forward referenced by
Base
derived.d(2): Error: mixin Template!(Derived) does not match template
declaration Template(T : Base
----
When compiled with dmd1 and 2, using `dmd base.d derived.d`. Moving the mixin
after the definition of Derived seems to fix the error.

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