Apple's bridgesupport on OS X VM?

Hi,

Looks like Apple has made a complete open-source project of its  
bridge support for gluing other languages to Cocoa, as used in  
RubyCocoa and PyObjC.  Any chance we can bridge Squeak to it, and get  
back at Brad Cox for creating Objective-C in the first place?  ;)

http://trac.macosforge.org/projects/BridgeSupport

Cheers,
Tim

Oh, that's kind of cool.  When we were working on the objective -c  
bridge, we were doing a lot of nutty introspection to try to fake  
that info.  We could probably do a lot better with that stuff.  If I  
get an free time I'll look at it.  If you want to try it yourself,  
the objective-c bridge is on squeaksource.

-Todd Blanchard

On May 28, 2007, at 9:48 AM, Tim Johnson wrote:

Hi Todd,
any chance to get this bridge working with current VM? I managed to  
compile it with latest svn version of the unix VM (stable versions  
did not compile on Intel Mac for some reason) and it seems there even  
was some message exchange between VM and ObjC runtime, but after that  
I got primitive failure in ByteArray>>integerAt:size:signed: e.g. in  
FFIPlugin>>primitiveFFIIntegerAt and I was not able to fix that.

I would give my little finger for a chance to write native Cocoa  
software in Squeak.

Jaroslav

Walkback follows:

ByteArray(Object)>>error:
        Receiver: a ByteArray(160 58 97 0)
        Arguments and temporary variables:
                aString: 'a primitive has failed'
        Receiver's instance variables:
a ByteArray(160 58 97 0)

ByteArray(Object)>>primitiveFailed
        Receiver: a ByteArray(160 58 97 0)
        Arguments and temporary variables:

        Receiver's instance variables:
a ByteArray(160 58 97 0)

ByteArray>>integerAt:size:signed:
        Receiver: a ByteArray(160 58 97 0)
        Arguments and temporary variables:
                byteOffset: 1
                nBytes: 4
                aBoolean: false
        Receiver's instance variables:
a ByteArray(160 58 97 0)

ByteArray>>unsignedLongAt:
        Receiver: a ByteArray(160 58 97 0)
        Arguments and temporary variables:
                byteOffset: 1
        Receiver's instance variables:
a ByteArray(160 58 97 0)


--- The full stack ---
ByteArray(Object)>>error:
ByteArray(Object)>>primitiveFailed
ByteArray>>integerAt:size:signed:
ByteArray>>unsignedLongAt:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
ObjcBridge>>coerce:from:
[] in NSMutableArray class(ObjcProxy class)>>send:to:withArguments:  
{[invocation setTarget: anObject.  invocation setSelector: aSymbol.  
2   to: ...]}
BlockContext>>ensure:
NSMutableArray class(ObjcProxy class)>>send:to:withArguments:
NSMutableArray class(ObjcProxy class)>>objcPerform:withArguments:
NSMutableArray class(ObjcProxy class)>>doesNotUnderstand: #alloc
ObjcBridge>>initialize
ObjcBridge>>startUp
ObjcBridge class>>startUp:
[] in SystemDictionary>>send:toClassesNamedIn:with: {[:name |  
class := self     at: name     ifAbsent: [].  class   ifNil: [remo...]}
OrderedCollection>>do:
SystemDictionary>>send:toClassesNamedIn:with:
SystemDictionary>>processStartUpList:
SmalltalkImage>>snapshot:andQuit:embedded:
SmalltalkImage>>snapshot:andQuit:
TheWorldMenu>>saveAndQuit
TheWorldMenu>>doMenuItem:with:
[] in MenuItemMorph>>invokeWithEvent: {[(selArgCount := selector  
numArgs) = 0   ifTrue: [target perform: selector] ...]}
BlockContext>>ensure:
CursorWithMask(Cursor)>>showWhile:
MenuItemMorph>>invokeWithEvent:
MenuItemMorph>>mouseUp:
MenuItemMorph>>handleMouseUp:
MouseButtonEvent>>sentTo:
MenuItemMorph(Morph)>>handleEvent:
MorphicEventDispatcher>>dispatchDefault:with:
MorphicEventDispatcher>>dispatchEvent:with:
MenuItemMorph(Morph)>>processEvent:using:
MorphicEventDispatcher>>dispatchDefault:with:
MorphicEventDispatcher>>dispatchEvent:with:
MenuMorph(Morph)>>processEvent:using:
MenuMorph(Morph)>>processEvent:
MenuMorph>>handleFocusEvent:
[] in HandMorph>>sendFocusEvent:to:clear: {[ActiveHand := self.  
ActiveEvent := anEvent.  result := focusHolder     han...]}
[] in PasteUpMorph>>becomeActiveDuring: {[aBlock value]}
BlockContext>>on:do:
PasteUpMorph>>becomeActiveDuring:
HandMorph>>sendFocusEvent:to:clear:
HandMorph>>sendEvent:focus:clear:
HandMorph>>sendMouseEvent:
HandMorph>>handleEvent:
HandMorph>>processEvents
[] in WorldState>>doOneCycleNowFor: {[:h |  ActiveHand := h.  h  
processEvents.  capturingGesture := capturingGest...]}
Array(SequenceableCollection)>>do:
WorldState>>handsDo:
WorldState>>doOneCycleNowFor:
WorldState>>doOneCycleFor:
PasteUpMorph>>doOneCycle
[] in Project class>>spawnNewProcess {[[World doOneCycle.  Processor  
yield.  false] whileFalse.  nil]}
[] in BlockContext>>newProcess {[self value.  Processor  
terminateActive]}


On 28. May 2007, at 7:10 PM, Todd Blanchard wrote:

> Oh, that's kind of cool.  When we were working on the objective -c  
> bridge, we were doing a lot of nutty introspection to try to fake  
> that info.  We could probably do a lot better with that stuff.  If  
> I get an free time I'll look at it.  If you want to try it  
> yourself, the objective-c bridge is on squeaksource.
>
> -Todd Blanchard
>