http://bugzilla.gdcproject.org/show_bug.cgi?id=71

--- Comment #1 from Iain Buclaw <ibuclaw@gdcproject.org> 2013-07-09 20:41:27 UTC ---
Ideally, would like a smaller test without imports. (this one produces just under 10,000 lines of code :)

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http://bugzilla.gdcproject.org/show_bug.cgi?id=71

--- Comment #2 from Iain Buclaw <ibuclaw@gdcproject.org> 2013-07-09 20:46:32 UTC ---
Anyways... it's a frontend closure bug.

(gdb) call debug_generic_expr (exp)
this

(gdb) p exp.base.code
$1 = PARM_DECL

(gdb) call debug_generic_expr (decl_function_context (exp))
CanonicalHuffman.print

(gdb) call debug_generic_expr (current_function_decl)
CanonicalHuffman.print.UniqResult!(__lambda6, SortedRange!(Tuple!(ulong,
Leaf)[], __lambda3)).UniqResult.save


Tut tut, you can't access a parameter from outside of it's context mate...

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http://bugzilla.gdcproject.org/show_bug.cgi?id=71

--- Comment #3 from Iain Buclaw <ibuclaw@gdcproject.org> 2013-07-09 20:53:19 UTC ---
(In reply to comment #2)
> Anyways... it's a frontend closure bug.
> 

Failing line:

__ctmp1809->this = this;

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http://bugzilla.gdcproject.org/show_bug.cgi?id=71

--- Comment #4 from Iain Buclaw <ibuclaw@gdcproject.org> 2013-07-09 21:09:31 UTC ---
(In reply to comment #3)
> (In reply to comment #2)
> > Anyways... it's a frontend closure bug.
> > 
> 
> Failing line:
> 
> __ctmp1809->this = this;

Area that generates the bad code:

StructLiteralExp::toElem

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http://bugzilla.gdcproject.org/show_bug.cgi?id=71

Iain Buclaw <ibuclaw@gdcproject.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED

--- Comment #5 from Iain Buclaw <ibuclaw@gdcproject.org> 2013-07-09 22:41:27 UTC ---
@@ -3594,8 +3594,6 @@ IRState::getVThis (Dsymbol *decl, Expression *e)
          if (ffo->creates_frame || ffo->static_chain
              || fdo->hasNestedFrameRefs())
            vthis_value = get_frame_for_symbol (this->func, sd);
-         else if (fdo->vthis && fdo->vthis->type != Type::tvoidptr)
-           vthis_value = get_decl_tree (fdo->vthis, this->func);
          else
            vthis_value = d_null_pointer;
        }


This was copied from class decls above, and applies to code such as:

class C16
{
    int w = 3;

    void iterator()
    {
        class Foo
        {
            void current()
            {
                assert(w == 3);   // Access parent from here.
            }
        }

        Foo f = new Foo();
        f.current();
    }
}


However, this is not valid for structs (struct Foo cannot access struct C16).

Running through testsuite atm.

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Iain Buclaw <ibuclaw@gdcproject.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #6 from Iain Buclaw <ibuclaw@gdcproject.org> 2013-07-09 23:35:32 UTC ---
https://github.com/D-Programming-GDC/GDC/commit/9f1bea381f55fdc3e68818a31cad9634c77602c0

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