• d-bugmail puremagic.com (42/42) Mar 08 2007 http://d.puremagic.com/issues/show_bug.cgi?id=1039
• d-bugmail puremagic.com (12/12) Mar 08 2007 http://d.puremagic.com/issues/show_bug.cgi?id=1039
• d-bugmail puremagic.com (20/20) Mar 29 2009 http://d.puremagic.com/issues/show_bug.cgi?id=1039

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=1039

           Summary: DMD hangs with 100% CPU
           Product: D
           Version: 1.007
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Keywords: ice-on-valid-code
          Severity: major
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla digitalmars.com
        ReportedBy: r.a3 ntlworld.com


Compiling these files with "dmd module1.d" causes DMD to hang with 100% CPU
usage; it doesn't respond to ^C and needs to be killed with the task manager.
It's annoying!

--- module1.d:
import module2;
import module3;

class FirstClass: FirstInterface
{
        mixin Template!(SecondClass);
}
class SecondClass: SecondBaseClass { }

void main() { }

--- module2.d:
import module3;

interface FirstInterface
{
        SecondBaseClass func(ThirdClass);
}

template Template( TYPE )
{       
        TYPE func(ThirdClass)
        {
                return new TYPE(this);
        }       
}

--- module3.d:
abstract class SecondBaseClass { }
class ThirdClass { }


-- 

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=1039






Sorry, I made a mistake. Is there no way to edit these? module3.d should be:

import module2;

abstract class SecondBaseClass
{
        this(FirstInterface) {}
}
class ThirdClass
{
}


-- 

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=1039


unknown simplemachines.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |unknown simplemachines.org
             Status|NEW                         |RESOLVED
         Resolution|                            |WORKSFORME





This appears to be resolved in (or earlier than) DMD 1.041 and 2.026.

It now shows this error message and exits properly:
module2.d(12): constructor module1.SecondClass.this () does not match parameter
types (FirstClass)
module2.d(12): Error: expected 0 arguments, not 1
module1.d(8): constructor module1.SecondClass.this no match for implicit
super() call in constructor

It compiles fine if I add an explicit constructor to SecondClass calling
super(), which I assume is a covariance issue.  If that is a bug it should be
filed separately.

-[Unknown]


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