digitalmars.D - std.boxer problem

Tydr Schnubbis (4/4) Apr 29 2006 Why can't I cast from Object to Box? That seems to defeat the purpose

Alexander Panek (6/11) Apr 29 2006 Object o = new Object();

Tydr Schnubbis (18/30) Apr 29 2006 No luck.

John Demme (4/42) Apr 29 2006 That one's a bug with templating code inside of libraries. You need to

Tydr Schnubbis (3/46) Apr 29 2006 Ah, so I guess it's currently unusable for real projects, then. I

Daniel Keep (16/63) Apr 29 2006 If I remember correctly, it's because we don't have a debug build of

Sean Kelly (4/9) Apr 29 2006 A compiler crash is never a good thing. Please file a bug report for

Tydr Schnubbis <fake address.dude> writes:

Why can't I cast from Object to Box?  That seems to defeat the purpose 
of boxing.  I get this error:

serverlist.d(185): e2ir: cannot cast from object.Object to Box
Internal error: e2ir.c 267

Apr 29 2006

Alexander Panek <alexander.panek brainsware.org> writes:

Tydr Schnubbis wrote:
 Why can't I cast from Object to Box?  That seems to defeat the purpose 
 of boxing.  I get this error:
 
 serverlist.d(185): e2ir: cannot cast from object.Object to Box
 Internal error: e2ir.c 267

Object o = new Object();
Box b = box(o);

foo bar = unbox!(foo)(b);

Regards,
Alexander Panek

Apr 29 2006

Tydr Schnubbis <fake address.dude> writes:

Alexander Panek wrote:
 Tydr Schnubbis wrote:
 Why can't I cast from Object to Box?  That seems to defeat the purpose 
 of boxing.  I get this error:
 
 serverlist.d(185): e2ir: cannot cast from object.Object to Box
 Internal error: e2ir.c 267

 
 Object o = new Object();
 Box b = box(o);
 
 foo bar = unbox!(foo)(b);
 

No luck.


import std.boxer;

void main()
{
     Object o = new Object();
     Box b = box(o);

     int bar = unbox!(int)(b);
}

c:\prog\test\D>dmd boxing2.d
c:\prog\dmd\bin\..\..\dm\bin\link.exe boxing2,,,user32+kernel32/noi;
OPTLINK (R) for Win32  Release 7.50B1
Copyright (C) Digital Mars 1989 - 2001  All Rights Reserved

boxing2.obj(boxing2)
  Error 42: Symbol Undefined _assert_3std5boxer
--- errorlevel 1


--------
Maybe it's just a configuration problem?  I've got dmd 0.155.

Apr 29 2006

John Demme <me teqdruid.com> writes:

Tydr Schnubbis wrote:

 Alexander Panek wrote:
 Tydr Schnubbis wrote:
 Why can't I cast from Object to Box?  That seems to defeat the purpose
 of boxing.  I get this error:
 
 serverlist.d(185): e2ir: cannot cast from object.Object to Box
 Internal error: e2ir.c 267

 
 Object o = new Object();
 Box b = box(o);
 
 foo bar = unbox!(foo)(b);
 

 No luck.
 
 
 import std.boxer;
 
 void main()
 {
      Object o = new Object();
      Box b = box(o);
 
      int bar = unbox!(int)(b);
 }
 
 c:\prog\test\D>dmd boxing2.d
 c:\prog\dmd\bin\..\..\dm\bin\link.exe boxing2,,,user32+kernel32/noi;
 OPTLINK (R) for Win32  Release 7.50B1
 Copyright (C) Digital Mars 1989 - 2001  All Rights Reserved
 
 boxing2.obj(boxing2)
   Error 42: Symbol Undefined _assert_3std5boxer
 --- errorlevel 1
 
 
 --------
 Maybe it's just a configuration problem?  I've got dmd 0.155.

That one's a bug with templating code inside of libraries.  You need to
compile your code with -release.

~John Demme

Apr 29 2006

Tydr Schnubbis <fake address.dude> writes:

John Demme wrote:
 Tydr Schnubbis wrote:
 
 Alexander Panek wrote:
 Tydr Schnubbis wrote:
 Why can't I cast from Object to Box?  That seems to defeat the purpose
 of boxing.  I get this error:
 
 serverlist.d(185): e2ir: cannot cast from object.Object to Box
 Internal error: e2ir.c 267

 
 Object o = new Object();
 Box b = box(o);
 
 foo bar = unbox!(foo)(b);
 

 No luck.
 
 
 import std.boxer;
 
 void main()
 {
      Object o = new Object();
      Box b = box(o);
 
      int bar = unbox!(int)(b);
 }
 
 c:\prog\test\D>dmd boxing2.d
 c:\prog\dmd\bin\..\..\dm\bin\link.exe boxing2,,,user32+kernel32/noi;
 OPTLINK (R) for Win32  Release 7.50B1
 Copyright (C) Digital Mars 1989 - 2001  All Rights Reserved
 
 boxing2.obj(boxing2)
   Error 42: Symbol Undefined _assert_3std5boxer
 --- errorlevel 1
 
 
 --------
 Maybe it's just a configuration problem?  I've got dmd 0.155.

 
 That one's a bug with templating code inside of libraries.  You need to
 compile your code with -release.

Ah, so I guess it's currently unusable for real projects, then.  I 
solved my original problem without using boxing.  So I'm okay for now. :)

Apr 29 2006

Daniel Keep <daniel.keep.lists gmail.com> writes:

Tydr Schnubbis wrote:
 John Demme wrote:
 Tydr Schnubbis wrote:

 Alexander Panek wrote:
 Tydr Schnubbis wrote:
 Why can't I cast from Object to Box?  That seems to defeat the purpose
 of boxing.  I get this error:

 serverlist.d(185): e2ir: cannot cast from object.Object to Box
 Internal error: e2ir.c 267

 Object o = new Object();
 Box b = box(o);

 foo bar = unbox!(foo)(b);

 No luck.


 import std.boxer;

 void main()
 {
      Object o = new Object();
      Box b = box(o);

      int bar = unbox!(int)(b);
 }

 c:\prog\test\D>dmd boxing2.d
 c:\prog\dmd\bin\..\..\dm\bin\link.exe boxing2,,,user32+kernel32/noi;
 OPTLINK (R) for Win32  Release 7.50B1
 Copyright (C) Digital Mars 1989 - 2001  All Rights Reserved

 boxing2.obj(boxing2)
   Error 42: Symbol Undefined _assert_3std5boxer
 --- errorlevel 1


 --------
 Maybe it's just a configuration problem?  I've got dmd 0.155.

 That one's a bug with templating code inside of libraries.  You need to
 compile your code with -release.

 
 Ah, so I guess it's currently unusable for real projects, then.  I
 solved my original problem without using boxing.  So I'm okay for now. :)

If I remember correctly, it's because we don't have a debug build of
Phobos.  You can build one yourself (ie: rebuild phobos with debug stuff
in).  Or, you can do what I did and "provide" the function that it's
missing:

// Burton Radons <burton-radons[at]smocky[dot]com>
// This entry allows -unittest for testing, and/or no need
// for the -release switch
private extern (C) void assert_3std5boxer() {}

I personally just stuck that in a file called
"dmdbug_std_boxer_assert.d", so that I can just remove the import when
it gets fixed :)

	-- Daniel

-- 

v1sw5+8Yhw5ln4+5pr6OFma8u6+7Lw4Tm6+7l6+7D
a2Xs3MSr2e4/6+7t4TNSMb6HTOp5en5g6RAHCP    http://hackerkey.com/

Apr 29 2006

Sean Kelly <sean f4.ca> writes:

Tydr Schnubbis wrote:
 Why can't I cast from Object to Box?  That seems to defeat the purpose 
 of boxing.  I get this error:
 
 serverlist.d(185): e2ir: cannot cast from object.Object to Box
 Internal error: e2ir.c 267

A compiler crash is never a good thing.  Please file a bug report for 
this :-)


Sean

Apr 29 2006

D Programming

C/C++ Programming

Other

digitalmars.D - std.boxer problem