More radical ideas about gc and reference counting

H. S. Teoh via Digitalmars-d digitalmars-d at puremagic.com
Thu May 1 07:01:21 PDT 2014


On Wed, Apr 30, 2014 at 06:30:16PM -0700, Walter Bright via Digitalmars-d wrote:
> On 4/30/2014 4:17 PM, H. S. Teoh via Digitalmars-d wrote:
> >If we're going
> >to have dtors at all, let's do it *right*. Guarantee they always work,
> >and reject all usages that break this guarantee (like putting a struct
> >with dtor inside a class,
> 
> Seems to work when I try it:
> 
> bar.d:
> -------------------------
>   import core.stdc.stdio;
> 
>   struct S { ~this() { printf("S.~this()\n"); } }
> 
>   class C { S s; }
> 
>   void main()
>   {
>     C c = new C();
>     c = null;
>   }
> -------------------------
> C:\cbx\mars>bar
> S.~this()

The proposal was to get rid of class dtors, in which case this code will
no longer work. Is that really the direction we want to move in?


T

-- 
Let's call it an accidental feature. -- Larry Wall


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