[BUG]UndefinedObject(Object)>>error:
Andreas Raab
andreas.raab at gmx.de
Mon Oct 13 18:06:36 UTC 2003
> Execute the script below in a workspace in a virgin Squeak
> 3.6 image to see the error.
I did - what's wrong with it? Why should returnBar return nil instead of
Bar? Maybe a few comments on what the bug is would be in order - what I see
is perfectly fine and exactly to be expected.
Cheers,
- Andreas
> -----Original Message-----
> From: squeak-dev-bounces at lists.squeakfoundation.org
> [mailto:squeak-dev-bounces at lists.squeakfoundation.org] On
> Behalf Of squeak at vanrooijen.com
> Sent: Monday, October 13, 2003 7:40 PM
> To: squeak-dev at lists.squeakfoundation.org
> Subject: [BUG]UndefinedObject(Object)>>error:
>
>
> Execute the script below in a workspace in a virgin Squeak
> 3.6 image to
> see the error.
>
> ----------------
> Object
> subclass: #FooBase
> instanceVariableNames: ''
> classVariableNames: 'Bar'
> poolDictionaries: ''
> category: 'Scope-Examples'
> .
> (Smalltalk at: #FooBase)
> subclass: #FooSub
> instanceVariableNames: ''
> classVariableNames: ''
> poolDictionaries: ''
> category: 'Scope-Examples'
> .
> Object
> subclass: #Bar
> instanceVariableNames: ''
> classVariableNames: ''
> poolDictionaries: ''
> category: 'Scope-Examples'
> .
> (Smalltalk at: #FooBase) class compile:
> 'returnBar
>
> ^Bar'
> .
> (Smalltalk at: #FooBase) returnBar == nil
> ifFalse: [nil error: 'FooBase: should be nil']
> .
> (Smalltalk at: #FooSub) class compile:
> 'returnBar
>
> ^Bar'
> .
> (Smalltalk at: #FooSub) returnBar == nil
> ifFalse: [nil error: 'FooSub: should be nil']
> ----------------
>
> 13 October 2003 7:39:45 pm
>
> VM: Win32 - Squeak3.5 of '11 April 2003' [latest update: #5180]
> Image: Squeak3.6 [latest update: #5424]
>
> UndefinedObject(Object)>>error:
> Receiver: nil
> Arguments and temporary variables:
> aString: 'FooSub: should be nil'
> Receiver's instance variables:
> nil
>
> UndefinedObject>>DoIt
> Receiver: nil
> Arguments and temporary variables:
>
> Receiver's instance variables:
> nil
>
> Compiler>>evaluate:in:to:notifying:ifFail:
> Receiver: a Compiler
> Arguments and temporary variables:
> textOrStream: a ReadWriteStream
> aContext: nil
> receiver: nil
> aRequestor: a TextMorphEditor
> failBlock: [] in
> TextMorphEditor(ParagraphEditor)>>evaluateSelection
> methodNode: DoIt
> Object
> subclass: #FooBase
> instanceVariableNames: ''
> cla...etc...
> method: a CompiledMethod (331)
> value: nil
> Receiver's instance variables:
> sourceStream: a ReadWriteStream
> requestor: a TextMorphEditor
> class: UndefinedObject
> context: nil
> parserClass: Parser
> cacheDoItNode: true
>
> [] in TextMorphEditor(ParagraphEditor)>>evaluateSelection
> Arguments and temporary variables:
> result: nil
> rcvr: nil
> ctxt: nil
> ex: nil
>
>
> --- The full stack ---
> UndefinedObject(Object)>>error:
> UndefinedObject>>DoIt
> Compiler>>evaluate:in:to:notifying:ifFail:
> [] in TextMorphEditor(ParagraphEditor)>>evaluateSelection
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> BlockContext>>on:do:
> TextMorphEditor(ParagraphEditor)>>evaluateSelection
> [] in PluggableTextMorph>>doIt
> [] in PluggableTextMorph>>handleEdit:
> TextMorphForEditView(TextMorph)>>handleEdit:
> PluggableTextMorph>>handleEdit:
> PluggableTextMorph>>doIt
> Workspace(StringHolder)>>perform:orSendTo:
> [] in MenuItemMorph>>invokeWithEvent:
> 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:
> PasteUpMorph>>becomeActiveDuring:
> HandMorph>>sendFocusEvent:to:clear:
> HandMorph>>sendEvent:focus:clear:
> HandMorph>>sendMouseEvent:
> HandMorph>>handleEvent:
> HandMorph>>processEvents
> [] in WorldState>>doOneCycleNowFor:
> Array(SequenceableCollection)>>do:
> WorldState>>handsDo:
> WorldState>>doOneCycleNowFor:
> WorldState>>doOneCycleFor:
> WorldState>>doOneSubCycleFor:
> PasteUpMorph>>doOneSubCycle
> MenuMorph>>invokeModalAt:in:allowKeyboard:
> MenuMorph>>invokeModal:
> PluggableTextMorph>>yellowButtonActivity:
> TextMorphForEditView>>mouseDown:
> TextMorphForEditView(Morph)>>handleMouseDown:
> MouseButtonEvent>>sentTo:
> TextMorphForEditView(Morph)>>handleEvent:
> MorphicEventDispatcher>>dispatchMouseDown:with:
> MorphicEventDispatcher>>dispatchEvent:with:
> TextMorphForEditView(Morph)>>processEvent:using:
> MorphicEventDispatcher>>dispatchMouseDown:with:
> MorphicEventDispatcher>>dispatchEvent:with:
> TransformMorph(Morph)>>processEvent:using:
> MorphicEventDispatcher>>dispatchMouseDown:with:
> MorphicEventDispatcher>>dispatchEvent:with:
> PluggableTextMorph(Morph)>>processEvent:using:
> MorphicEventDispatcher>>dispatchMouseDown:with:
> MorphicEventDispatcher>>dispatchEvent:with:
> SystemWindow(Morph)>>processEvent:using:
> -- and more not shown --
>
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