[Vm-dev] Re: Incorrect return type of positive64BitIntegerFor in FilePlugin.c

Eliot Miranda eliot.miranda at gmail.com
Sat Jan 4 05:19:57 UTC 2014

Hi Nicolas,

On Wed, Jan 1, 2014 at 1:16 AM, Nicolas Cellier <
nicolas.cellier.aka.nice at gmail.com> wrote:

> 2013/12/31 Nicolas Cellier <nicolas.cellier.aka.nice at gmail.com>
>> I forgot to tell this was in COG branch.
>> This file is generated, and the type is inferred from
>> InterpreterProxy>>positive64BitIntegerFor:
>> I guess that a correct <returnTypeC:#sqInt> annotation is missing here.
>> The question is why using InterpreterProxy from the plugin code generator?
> I find it strange to scatter (and duplicate) C-generation hints in a code
> that is not intended to be C-generated...

The problem is that the InterpreterProxy interface wasn't well-documented
in Smalltalk.  Instead the definitive code is in
platforms/Cross/vm/sqVirtualMachine.[ch].  I think it is better to have
InterpreterProxy define the return types (via the pragmas) and to use these
definitions for tests.
 See VMInterfaceConsistencyTests>>#testInterpreterProxyInterface.

Since the default return type is sqInt there's no pragma to specify it.
 But I agree it would be preferrable to be explicit.

> 2013/12/31 Nicolas Cellier <nicolas.cellier.aka.nice at gmail.com>
>>> positive64BitIntegerFor return type is declared sqLong, but should be
>>> sqInt (it returns an oop).
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