D/Objective-C 64bit

[Michel Fortin via Digitalmars-d-announce]

On 2014-11-04 09:07:08 +0000, "Christian Schneider" 
<schneider at gerzonic.net> said:

> Ok, some more info:
> 
> I changed the mapping in tableview.d to:
> 
> void setDoubleAction(void __selector(ObjcObject))
> [setDoubleAction:] ;

That's indeed the best way to do it.


> This should be the way to do it. Now in the implementation of the
> action:
> 
>       void doubleClickAction(ObjcObject sender) {
>           NSLog("double click action") ;
>           NSLog("the sender: %@", sender) ;
>       }
> 
> This works fine and prints the log:  2014-11-04 10:01:57.967
> tableview[9988:507] the sender: <NSTableView: 0x7f8309f156b0>
> 
> But now I would like to do something with this sender, like I do
> often in an Objective-C project:
> 
> NSTableView tableView = cast(NSTableView)sender ;
> 
> I get a  EXC_BAD_ACCESS (SIGSEGV) on this line. Only when I
> replace both ObjcObject with NSObject (in tableview.d, the
> mapping, and the target action) this cast works. I might be
> missing something obvious here.

There is no test for interface-to-class casts in the D/Objective-C test 
suite, which means you're likely the first person to try that. It's 
probably just an oversight in the compiler code.


-- 
Michel Fortin
michel.fortin at michelf.ca
http://michelf.ca