Just type

PositionableStream>>#fileInAnnouncing:

and explore it. Look for the literal pointing to the compiler (literal8 
here). Toggle that open and toggle open the value. Look at the 
instanceVariables - does it still have sourceStream?

As to the explorer, did you open one? Is it still open? (The 
PointerFinder says it is) Could it have been open when the image was 
last saved?


Also, you could do

Behavior allSubInstances select: [ :e | (e asString findString: 
'Compiler') > 0]

Do you get: an OrderedCollection(ClosureCompilerTest CompilerTest 
CompilerExceptionsTest CompilerNotifyingTest 
CompilerSyntaxErrorNotifyingTest Compiler ClosureCompilerTest class 
CompilerTest class CompilerExceptionsTest class CompilerNotifyingTest 
class CompilerSyntaxErrorNotifyingTest class Compiler class)


Cheers,
Bob

On 9/25/13 7:31 AM, Frank Shearar wrote:
> I don't know how I would do that. The bytecode just says pushLit: Compiler.
>
> But if I say Compiler allInstances collect: [:c | c instVarNamed:
> 'cue'] I see {nil . a CompilationCue . a CompilationCue}. That first
> one's a problem! Further, my image has an ObjectExplorer (!) hanging
> onto that Compiler, coming from I don't know where.
>
> frank
>
> On 25 September 2013 11:53, Bob Arning <arning315 at comcast.net> wrote:
>> If you inspect
>>
>> PositionableStream>>#fileInAnnouncing:
>>
>> and look at the literal for Compiler, does it look to be pointing to the new
>> or old Compiler?
>>
>> Cheers,
>> Bob
>>
>> On 9/25/13 6:12 AM, Frank Shearar wrote:
>>
>> I'm running with Compiler-nice.274.
>>
>> What's weirder is in that top stack frame (Compiler >>
>> #evaluate:in:to:notifying:ifFailed:logged: the following all show up
>> as red, because they're references to instvars that don't exist:
>> class, sourceStream, context, requestor.
>>
>> That's because the CompiledMethod that's running is not actually the
>> right CompiledMethod! It's from some ancient pre-CompilationCue
>> Compiler instance. Or at least so I suspect because that Compiler
>> instance has a nil 'cue' instvar.
>>
>> If it helps, the PointerFinder says this of the offending context:
>>
>> globals: Environment
>> declarations: IdentityDictionary
>> #World -> PasteUpMorph
>> submorphs: Array
>> 1: SystemWindow
>> model: ObjectExplorer
>> currentSelection: ObjectExplorerWrapper
>> item: CompiledMethod
>>
>> In contrast, PointerFinder on: (Compiler >>
>> #evaluate:in:to:notifying:ifFail:logged:) says:
>>
>> CLASS: SmalltalkImage class
>> superclass: Object class
>> subclasses: Array
>> 445: Compiler class
>> methodDict: MethodDictionary
>> array: Array
>> 39: CompiledMethod.
>>
>>
>>
>>
>>
>

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