[Cuis] 4.1 to 4.2 migration question

[Phil (list)]

On Mon, 2015-02-16 at 19:26 -0800, Casey Ransberger wrote:
> What is self parserClass expected to answer when one happens to be an
> instance of OGLExtManager?
> 
In Cuis 4.1 it answers with Parser
> 
> This *is* interesting. Is that Igor's generated code? Stasenko, he
> might be someone who'd know what was supposed to be going on here.
> Odds are, if we can figure out what sort of parser is supposed to be
> answered, we can make it work in Cuis.
> 
I think it predates Igor's stuff (isn't his all that newfangled
NativeBoost stuff or am I thinking of something else?).  This package
was based on some old Squeak FFI-based packages that I managed to track
down ~5 years ago IIRC (before that I had a hacky extract from an old
Croquet image.. it was ugly)

> I'm interested in this stuff myself, because Cuis would be a great
> platform to make games on if we had some solid support for OpenGL,
> mainly because it wastes less time on the Morphic loop than the other
> dialects.
> 
I've had OpenGL running in Cuis since 1.0 (OK, maybe not 1.0, but pretty
sure it was early 1.x :-)
> 
> --C
> 
> On Mon, Feb 16, 2015 at 7:15 PM, Phil (list) <pbpublist at gmail.com>
> wrote:
>         On Mon, 2015-02-16 at 18:49 -0800, Casey Ransberger wrote:
>         > I think parserClass was there to give everyone a hook to
>         implement
>         > their own parsers, because Smalltalk was (in part) a prog
>         language
>         > research platform. Given that Cuis aims to be a minimal
>         system,
>         > someone may have removed it as unnecessary. Also, when Juan
>         changes
>         > some critical behavior, he tends to prefer coming up with a
>         new name
>         > for the method and associated variables, so that folks with
>         existing
>         > code aren't confused when their dependencies start behaving
>         in
>         > unexpected ways; this might also be what happened.
>         
>         I'm fine with it being removed... just wanted to understand
>         why it was
>         removed.  I know there's been a lot of cog/compiler/vm stuff
>         going on
>         recently that I haven't kept up on so thought I'd check in
>         before just
>         making the minimal changes to get it working again if
>         something bigger
>         is going on.
>         
>         > It would be interesting to look at what wants to refer to
>         parserClass.
>         > Could be one of those packages is doing something very, very
>         > interesting:)
>         >
>         >
>         It's from OGLExtManager...
>         
>         forwardExtMethod: aSelector
>                 "Compile a forwarder method in OpenGL"
>                 | code parser fwdCode |
>                 code := self class sourceCodeAt: aSelector.
>                 parser := self parserClass new.
>                 parser parseSelector: code.
>                 code := code copyFrom: 1 to: (parser endOfLastToken
>         min: code size).
>                 fwdCode := String streamContents:[:s|
>                         s nextPutAll: code.
>                         s newLineTab: 1; nextPutAll: '"This method was
>         automatically
>         generated"'.
>                         s newLineTab: 1; nextPutAll: '^glExt ';
>         nextPutAll: code.
>                 ].
>                 (OpenGL sourceCodeAt: aSelector ifAbsent:['']) =
>         fwdCode
>         ifTrue:[^self]. "no change"
>                 OpenGL compile: fwdCode classified: (self class
>         organization
>         categoryOfElement: aSelector).
>         
>         
>         
>         
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> 
> 
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