Levente Uzonyi uploaded a new version of System to project The Trunk:
http://source.squeak.org/trunk/System-ul.196.mcz

==================== Summary ====================

Name: System-ul.196
Author: ul
Time: 12 December 2009, 2:50:45 am
UUID: 3ad682cd-92a9-2944-9621-9f42a10fc7e7
Ancestors: System-bf.195

- replace sends of #ifNotNilDo: to #ifNotNil:, #ifNil:ifNotNilDo: to #ifNil:ifNotNil:, #ifNotNilDo:ifNil: to #ifNotNil:ifNil:

=============== Diff against System-bf.195 ===============

Item was changed:
  ----- Method: Preferences class>>restorePersonalPreferences (in category 'personalization') -----
  restorePersonalPreferences
  	"Restore all the user's saved personal preference settings"
  
  	| savedPrefs |
  	savedPrefs := self parameterAt: #PersonalDictionaryOfPreferences ifAbsent: [^ self inform: 'There are no personal preferences saved in this image yet'].
  
  	savedPrefs associationsDo:
+ 		[:assoc | (self preferenceAt: assoc key ifAbsent: [nil]) ifNotNil:
- 		[:assoc | (self preferenceAt: assoc key ifAbsent: [nil]) ifNotNilDo:
  			[:pref | pref preferenceValue: assoc value preferenceValue]]!

Item was changed:
  ----- Method: SARInstaller class>>cardForSqueakMap: (in category 'SqueakMap') -----
  cardForSqueakMap: aSqueakMap
  	"Answer the current card or a new card."
  
  	(aSqueakMap cardWithId: self squeakMapPackageID)
+ 		ifNotNil: [ :card |
- 		ifNotNilDo: [ :card |
  			(card installedVersion = self squeakMapPackageVersion) ifTrue: [ ^card ]
  		].
  
  	^self newCardForSqueakMap: aSqueakMap
  !

Item was changed:
  ----- Method: Project>>makeThumbnail (in category 'menu messages') -----
  makeThumbnail
  	"Make a thumbnail image of this project from the Display."
  	viewSize ifNil: [viewSize := Display extent // 8].
  	thumbnail := Form extent: viewSize depth: Display depth.
  	(WarpBlt current toForm: thumbnail)
  			sourceForm: Display;
  			cellSize: 2;  "installs a colormap"
  			combinationRule: Form over;
  			copyQuad: (Display boundingBox) innerCorners
  			toRect: (0 at 0 extent: viewSize).
+ 	(Smalltalk at: #InternalThreadNavigationMorph) ifNotNil: [:tnMorph |
- 	(Smalltalk at: #InternalThreadNavigationMorph) ifNotNilDo: [:tnMorph |
  			tnMorph  cacheThumbnailFor: self].
  	^thumbnail
  !

Item was changed:
  ----- Method: Imports>>importImageDirectory: (in category 'icons') -----
  importImageDirectory: directoryOrName 
  	| dir extensions forms |
  	dir := directoryOrName isString
  		ifFalse: [ directoryOrName ]
  		ifTrue: [ FileDirectory default directoryNamed: directoryOrName ].
  	dir exists
  		ifFalse: [self error: dir fullName , ' does not exist'. ^ #()].
  	extensions := (ImageReadWriter allTypicalFileExtensions add: 'form';
  				 yourself)
  				collect: [:ex | '.' , ex].
  	forms := OrderedCollection new.
  	dir fileNames
  		do: [:fileName | | fullName | (fileName endsWithAnyOf: extensions)
  				ifTrue: [fullName := dir fullNameFor: fileName.
  					(self importImageFromFileNamed: fullName)
+ 						ifNotNil: [:form | forms add: form]]].
- 						ifNotNilDo: [:form | forms add: form]]].
  	^ forms!

Item was changed:
  ----- Method: PseudoClass>>bindingOf: (in category 'testing method dictionary') -----
  bindingOf: varName
  	self exists ifTrue:[
+ 		(self realClass bindingOf: varName) ifNotNil:[:binding| ^binding].
- 		(self realClass bindingOf: varName) ifNotNilDo:[:binding| ^binding].
  	].
  	^Smalltalk bindingOf: varName asSymbol!

Item was changed:
  ----- Method: SystemChangeNotifier class>>resetUniqueInstance (in category 'private') -----
  resetUniqueInstance
  	"self resetUniqueInstance"
  
  	UniqueInstance
+ 		ifNotNil: [:u | UniqueInstance releaseAll.
- 		ifNotNilDo: [:u | UniqueInstance releaseAll.
  			UniqueInstance := nil]!

Item was changed:
  ----- Method: Preferences class>>loadPreferencesFrom: (in category 'personalization') -----
  loadPreferencesFrom: aFileName
  	| stream params dict desktopColor |
  	stream := ReferenceStream fileNamed: aFileName.
  	params := stream next.
  	self assert: (params isKindOf: IdentityDictionary).
  	params removeKey: #PersonalDictionaryOfPreferences.
  	dict := stream next.
  	self assert: (dict isKindOf: IdentityDictionary).
  	desktopColor := stream next.
  	stream close.
  	dict keysAndValuesDo:
+ 		[:key :value | (self preferenceAt: key ifAbsent: [nil]) ifNotNil:
- 		[:key :value | (self preferenceAt: key ifAbsent: [nil]) ifNotNilDo:
  			[:pref | pref preferenceValue: value preferenceValue]].
  
  	params keysAndValuesDo: [ :key :value | self setParameter: key to: value ].
  
  	Smalltalk isMorphic
  		ifTrue: [ World fillStyle: desktopColor ]
  		ifFalse: [ self desktopColor: desktopColor. ScheduledControllers updateGray ].
  !

Item was changed:
  ----- Method: SystemNavigation>>obsoleteMethodReferences (in category 'query') -----
  obsoleteMethodReferences
  	"SystemNavigation default obsoleteMethodReferences"
  
  	"Open a browser on all referenced behaviors that are obsolete"
  
  	| obsClasses obsRefs references |
  	references := WriteStream on: Array new.
  	obsClasses := self obsoleteBehaviors.
  	'Scanning for methods referencing obsolete classes' 
  		displayProgressAt: Sensor cursorPoint
  		from: 1
  		to: obsClasses size
  		during: 
  			[:bar | 
  			obsClasses keysAndValuesDo: 
  					[:index :each | 
  					bar value: index.
  					obsRefs := Utilities pointersTo: each except: obsClasses.
  					obsRefs do: 
  							[:ref | 
  							"Figure out if it may be a global"
  
  							(ref isVariableBinding and: [ref key isString	"or Symbol"]) 
  								ifTrue: 
  									[(Utilities pointersTo: ref) do: 
  											[:meth | 
  											(meth isKindOf: CompiledMethod) 
+ 												ifTrue: [meth methodReference ifNotNil: [:mref | references nextPut: mref]]]]]]].
- 												ifTrue: [meth methodReference ifNotNilDo: [:mref | references nextPut: mref]]]]]]].
  	^references contents!

Item was changed:
  ----- Method: Project>>initializeProjectPreferences (in category 'project parameters') -----
  initializeProjectPreferences
  	"Initialize the project's preferences from currently-prevailing preferences that are currently being held in projects in this system"
  	
  	projectPreferenceFlagDictionary := Project current projectPreferenceFlagDictionary deepCopy.    "Project overrides in the new project start out being the same set of overrides in the calling project"
  
  	Preferences allPreferenceObjects do:  "in case we missed some"
  		[:aPreference |
  			aPreference localToProject ifTrue:
  				[(projectPreferenceFlagDictionary includesKey: aPreference name) ifFalse:
  			[projectPreferenceFlagDictionary at: aPreference name put: aPreference preferenceValue]]].
  
+ 	(Project current projectParameterAt: #disabledGlobalFlapIDs  ifAbsent: [nil]) ifNotNil:
- 	(Project current projectParameterAt: #disabledGlobalFlapIDs  ifAbsent: [nil]) ifNotNilDo:
  		[:idList | self projectParameterAt: #disabledGlobalFlapIDs put: idList copy]
  !

Item was changed:
  ----- Method: SARInstaller>>getMCBootstrapLoaderClass (in category 'client services') -----
  getMCBootstrapLoaderClass
  	^Smalltalk at: #MCBootstrapLoader
  		ifAbsent: 
  			[(self memberNamed: 'MCBootstrapLoader.st') 
+ 				ifNotNil: [:m | self fileInMemberNamed: m.
- 				ifNotNilDo: [:m | self fileInMemberNamed: m.
  					Smalltalk at: #MCBootstrapLoader ifAbsent: []]]!

Item was changed:
  ----- Method: Project>>validateProjectNameIfOK: (in category 'menu messages') -----
  validateProjectNameIfOK: aBlock
  
  	| details |
  
  	details := world valueOfProperty: #ProjectDetails.
  	details ifNotNil: ["ensure project info matches real project name"
  		details at: 'projectname' put: self name.
  	].
  	self doWeWantToRename ifFalse: [^aBlock value].
+ 	(Smalltalk at: #EToyProjectDetailsMorph) ifNotNil: [:etpdm |
- 	(Smalltalk at: #EToyProjectDetailsMorph) ifNotNilDo: [:etpdm |
  		etpdm
  			getFullInfoFor: self 
  			ifValid: [
  				World displayWorldSafely.
  				aBlock value.
  			] fixTemps
  			expandedFormat: false]
  !