Hi Frank,


On Thu, Nov 14, 2013 at 1:59 AM, Frank Shearar <frank.shearar at gmail.com>wrote:

> That's the source of the problem: FFI-Kernel uses FFIConstants, which
> is declared/defined in FFI-Pools.
>
> Insert standard Frank rant of something called "Kernel" depending on
> other stuff. (Possibly insert standard Chris rant of a package
> containing a single class? :) )
>

The problem here is that the VM depends on FFIConstants also, and the VM
shouldn't depend on the rest of FFI.  So FFIConstants does need to be on
its own, but could perhaps be called something different.


>
> frank
>
> On 12 November 2013 23:20, Chris Muller <ma.chris.m at gmail.com> wrote:
> > I didn't see you loading FFI-Pools in advance.  The issue you encountered
> > may not have had anything to do with -eem.24.
> >
> > FYI -- FFI also has a "head" release on SqueakMap which documents how to
> > load it.
> >
> >
> > On Tue, Nov 12, 2013 at 4:50 PM, Frank Shearar <frank.shearar at gmail.com>
> > wrote:
> >>
> >> That pulls in the latest packages, right?
> >>
> >> So that does work. But why does the reported version fail to load?
> >> That's a problem still.
> >>
> >> (While this lets me get on with what I wanted to do - add
> >> #interleaving: to Xtreams - this is still a problem. But thanks for
> >> the workaround, Chris!)
> >>
> >> frank
> >>
> >> On 12 November 2013 20:55, Chris Muller <asqueaker at gmail.com> wrote:
> >> > Installer new merge: #ffi.
> >> >
> >> > Worked for me..
> >> >
> >> > On Tue, Nov 12, 2013 at 2:45 PM, Frank Shearar <
> frank.shearar at gmail.com>
> >> > wrote:
> >> >> On 26 February 2013 18:36, Eliot Miranda <eliot.miranda at gmail.com>
> >> >> wrote:
> >> >>>
> >> >>>
> >> >>> On Tue, Feb 26, 2013 at 1:51 AM, Frank Shearar
> >> >>> <frank.shearar at gmail.com>
> >> >>> wrote:
> >> >>>>
> >> >>>> (Installer monticello mc: (MCHttpRepository new location:
> >> >>>> 'http://source.squeak.org/FFI'))
> >> >>>>     install: 'FFI-Kernel-eem.24.mcz'. "There's a -tbn.25, but
> that's
> >> >>>> not important to this post"
> >> >>>>
> >> >>>> fails with an MNU: ExternalFunction class >> callingConventionFor:.
> >> >>>>
> >> >>>> As far as I can see what's happening is this:
> >> >>>> * during the loading of the mcz ExternalFunction is defined,
> >> >>>> * a method is parsed (#XOpenDisplay, which has a pragma <cdecl:
> >> >>>> X11Display* ''XOpenDisplay'' (char*) module:''X11''>)
> >> >>>> * Parser >> externalFunctionDeclaration checks whether
> >> >>>> ExternalFunction is defined.
> >> >>>> * It is, so tries to evaluate `descriptorClass callingConvention:
> >> >>>> here` and boom, because ExternalFunction class >>
> >> >>>> callingConventionFor: _has not been loaded yet_.
> >> >>>
> >> >>>
> >> >>> I thought we'd modified Monticello to load new methods first.  Did
> >> >>> this not
> >> >>> get added to trunk?
> >> >>
> >> >> Apparently not. It still happens with an up-to-date Squeak 4.5.
> >> >>
> >> >> frank
> >> >>
> >> >>>> I've seen this kind of issue with Helvetia code: sometimes you
> simply
> >> >>>> have to load class-side methods first.
> >> >>>>
> >> >>>> Thoughts? Lukas worked around the issue with his Helvetia code by
> >> >>>> directly patching Monticello, and ripping out its "try to do atomic
> >> >>>> loading" mechanism.
> >> >>>>
> >> >>>> frank
> >> >>>>
> >> >>>
> >> >>>
> >> >>>
> >> >>> --
> >> >>> best,
> >> >>> Eliot
> >> >>>
> >> >>>
> >> >>>
> >> >>
> >> >
> >
> >
>
>


-- 
best,
Eliot
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