Smalltalk current createPackage: 'Kernel-Classes'! Object subclass: #Behavior instanceVariableNames: '' package: 'Kernel-Classes'! !Behavior commentStamp! Behavior is the superclass of all class objects. It defines the protocol for creating instances of a class with `#basicNew` and `#new` (see `boot.js` for class constructors details). Instances know about the subclass/superclass relationships between classes, contain the description that instances are created from, and hold the method dictionary that's associated with each class. Behavior also provides methods for compiling methods, examining the method dictionary, and iterating over the class hierarchy.! !Behavior methodsFor: 'accessing'! allInstanceVariableNames | result | result := self instanceVariableNames copy. self superclass ifNotNil: [ result addAll: self superclass allInstanceVariableNames]. ^result ! allSelectors ^self allSuperclasses inject: self selectors into: [ :soFar :aBehavior | soFar addAll: aBehavior selectors; yourself ] ! allSubclasses | result | result := self subclasses. self subclasses do: [:each | result addAll: each allSubclasses]. ^result ! allSuperclasses self superclass ifNil: [ ^ #() ]. ^ (OrderedCollection with: self superclass) addAll: self superclass allSuperclasses; yourself ! comment ^(self basicAt: 'comment') ifNil: [''] ! comment: aString self basicAt: 'comment' put: aString. SystemAnnouncer current announce: (ClassCommentChanged new theClass: self; yourself) ! commentStamp ^ClassCommentReader new class: self; yourself ! commentStamp: aStamp prior: prior ^self commentStamp ! definition ^ '' ! instanceVariableNames ! lookupSelector: selector "Look up the given selector in my methodDictionary. Return the corresponding method if found. Otherwise chase the superclass chain and try again. Return nil if no method is found." | lookupClass | lookupClass := self. [ lookupClass = nil ] whileFalse: [ (lookupClass includesSelector: selector) ifTrue: [ ^ lookupClass methodAt: selector ]. lookupClass := lookupClass superclass ]. ^ nil ! methodAt: aSymbol ^ self methodDictionary at: aSymbol asString ! methodDictionary ! methods ^ self methodDictionary values ! methodsFor: aString ^ClassCategoryReader new class: self category: aString; yourself ! methodsFor: aString stamp: aStamp "Added for compatibility, right now ignores stamp." ^self methodsFor: aString ! methodsInProtocol: aString ^ self methodDictionary values select: [ :each | each protocol = aString ] ! name ! organization ^ self basicAt: 'organization' ! protocols ^ self organization elements sorted ! protocolsDo: aBlock "Execute aBlock for each method category with its collection of methods in the sort order of category name." | methodsByCategory | methodsByCategory := HashedCollection new. self methodDictionary values do: [:m | (methodsByCategory at: m category ifAbsentPut: [Array new]) add: m]. self protocols do: [:category | aBlock value: category value: (methodsByCategory at: category)] ! prototype ! selectors ^ self methodDictionary keys ! subclasses ! superclass ! theMetaClass ^ self class ! theNonMetaClass ^ self ! withAllSubclasses ^(Array with: self) addAll: self allSubclasses; yourself ! ! !Behavior methodsFor: 'compiling'! addCompiledMethod: aMethod | oldMethod announcement | oldMethod := self methodDictionary at: aMethod selector ifAbsent: [ nil ]. (self protocols includes: aMethod protocol) ifFalse: [ self organization addElement: aMethod protocol ]. self basicAddCompiledMethod: aMethod. announcement := oldMethod ifNil: [ MethodAdded new method: aMethod; yourself ] ifNotNil: [ MethodModified new oldMethod: oldMethod; method: aMethod; yourself ]. SystemAnnouncer current announce: announcement ! compile: aString self compile: aString category: '' ! compile: aString category: anotherString Compiler new install: aString forClass: self category: anotherString ! removeCompiledMethod: aMethod self basicRemoveCompiledMethod: aMethod. self methods detect: [ :each | each protocol = aMethod protocol ] ifNone: [ self organization removeElement: aMethod protocol ]. SystemAnnouncer current announce: (MethodRemoved new method: aMethod; yourself) ! ! !Behavior methodsFor: 'enumerating'! allSubclassesDo: aBlock "Evaluate the argument, aBlock, for each of the receiver's subclasses." self subclasses do: [ :each | aBlock value: each. each allSubclassesDo: aBlock ]. ! protocolsDo: aBlock "Execute aBlock for each method category with its collection of methods in the sort order of category name." | methodsByCategory | methodsByCategory := HashedCollection new. self methodDictionary values do: [:m | (methodsByCategory at: m category ifAbsentPut: [Array new]) add: m]. self protocols do: [:category | aBlock value: category value: (methodsByCategory at: category)] ! ! !Behavior methodsFor: 'instance creation'! basicNew ! new ^self basicNew initialize ! ! !Behavior methodsFor: 'private'! basicAddCompiledMethod: aMethod ! basicRemoveCompiledMethod: aMethod < smalltalk.removeMethod(aMethod) smalltalk.init(self); > ! ! !Behavior methodsFor: 'testing'! canUnderstand: aSelector ^(self methodDictionary keys includes: aSelector asString) or: [ self superclass notNil and: [self superclass canUnderstand: aSelector]] ! includesSelector: aSymbol ^ self methodDictionary includesKey: aSymbol asString ! inheritsFrom: aClass ^aClass allSubclasses includes: self ! ! Behavior subclass: #Class instanceVariableNames: '' package: 'Kernel-Classes'! !Class commentStamp! Class is __the__ class object. Instances are the classes of the system. Class creation is done throught a `ClassBuilder`! !Class methodsFor: 'accessing'! category ^self package ifNil: ['Unclassified'] ifNotNil: [self package name] ! definition ^ String streamContents: [ :stream | stream nextPutAll: self superclass asString; nextPutAll: ' subclass: #'; nextPutAll: self name; nextPutAll: String lf, String tab; nextPutAll: 'instanceVariableNames: '''. self instanceVariableNames do: [ :each | stream nextPutAll: each ] separatedBy: [ stream nextPutAll: ' ' ]. stream nextPutAll: '''', String lf, String tab; nextPutAll: 'package: '''; nextPutAll: self category; nextPutAll: '''' ] ! package ! package: aPackage ! rename: aString ClassBuilder new renameClass: self to: aString ! ! !Class methodsFor: 'class creation'! subclass: aString instanceVariableNames: anotherString "Kept for compatibility." ^self subclass: aString instanceVariableNames: anotherString package: nil ! subclass: aString instanceVariableNames: aString2 category: aString3 "Kept for compatibility." self deprecatedAPI. ^self subclass: aString instanceVariableNames: aString2 package: aString3 ! subclass: aString instanceVariableNames: aString2 classVariableNames: classVars poolDictionaries: pools category: aString3 "Just ignore class variables and pools. Added for compatibility." ^self subclass: aString instanceVariableNames: aString2 package: aString3 ! subclass: aString instanceVariableNames: aString2 package: aString3 ^ClassBuilder new superclass: self subclass: aString asString instanceVariableNames: aString2 package: aString3 ! ! !Class methodsFor: 'converting'! asJavascript ^ 'smalltalk.', self name ! ! !Class methodsFor: 'printing'! printString ^self name ! ! !Class methodsFor: 'testing'! isClass ^true ! ! Behavior subclass: #Metaclass instanceVariableNames: '' package: 'Kernel-Classes'! !Metaclass commentStamp! Metaclass is the root of the class hierarchy. Metaclass instances are metaclasses, one for each real class. Metaclass instances have a single instance, which they hold onto, which is the class that they are the metaclass of.! !Metaclass methodsFor: 'accessing'! definition ^ String streamContents: [ :stream | stream nextPutAll: self asString; nextPutAll: ' class '; nextPutAll: 'instanceVariableNames: '''. self instanceVariableNames do: [ :each | stream nextPutAll: each ] separatedBy: [ stream nextPutAll: ' ' ]. stream nextPutAll: '''' ] ! instanceClass ! instanceVariableNames: aCollection ClassBuilder new class: self instanceVariableNames: aCollection ! theMetaClass ^ self ! theNonMetaClass ^ self instanceClass ! ! !Metaclass methodsFor: 'converting'! asJavascript ^ 'smalltalk.', self instanceClass name, '.klass' ! ! !Metaclass methodsFor: 'printing'! printString ^self instanceClass name, ' class' ! ! !Metaclass methodsFor: 'testing'! isMetaclass ^true ! ! Object subclass: #ClassBuilder instanceVariableNames: '' package: 'Kernel-Classes'! !ClassBuilder commentStamp! ClassBuilder is responsible for compiling new classes or modifying existing classes in the system. Rather than using ClassBuilder directly to compile a class, use `Class >> subclass:instanceVariableNames:package:`.! !ClassBuilder methodsFor: 'accessing'! instanceVariableNamesFor: aString ^(aString tokenize: ' ') reject: [ :each | each isEmpty ] ! ! !ClassBuilder methodsFor: 'class definition'! addSubclassOf: aClass named: aString instanceVariableNames: aCollection package: packageName | theClass | theClass := Smalltalk current at: aString. theClass ifNotNil: [ theClass superclass == aClass ifFalse: [ ^ self migrateClassNamed: aString superclass: aClass instanceVariableNames: aCollection package: packageName ] ]. ^ self basicAddSubclassOf: aClass named: aString instanceVariableNames: aCollection package: packageName ! class: aClass instanceVariableNames: aString self basicClass: aClass instanceVariableNames: aString. self setupClass: aClass. SystemAnnouncer current announce: (ClassDefinitionChanged new theClass: aClass; yourself) ! superclass: aClass subclass: aString ^self superclass: aClass subclass: aString instanceVariableNames: '' package: nil ! superclass: aClass subclass: aString instanceVariableNames: aString2 package: aString3 | newClass | newClass := self addSubclassOf: aClass named: aString instanceVariableNames: (self instanceVariableNamesFor: aString2) package: (aString3 ifNil: ['unclassified']). self setupClass: newClass. SystemAnnouncer current announce: (ClassAdded new theClass: newClass; yourself). ^newClass ! ! !ClassBuilder methodsFor: 'class migration'! migrateClass: aClass superclass: anotherClass console log: aClass name. self migrateClassNamed: aClass name superclass: anotherClass instanceVariableNames: aClass instanceVariableNames package: aClass package name ! migrateClassNamed: aString superclass: aClass instanceVariableNames: aCollection package: packageName | oldClass newClass tmp | tmp := 'new*', aString. oldClass := Smalltalk current at: aString. newClass := self addSubclassOf: aClass named: tmp instanceVariableNames: aCollection package: packageName. self basicSwapClassNames: oldClass with: newClass. [ self copyClass: oldClass to: newClass ] on: Error do: [ :exception | self basicSwapClassNames: oldClass with: newClass; basicRemoveClass: newClass. exception signal ]. self rawRenameClass: oldClass to: tmp; rawRenameClass: newClass to: aString. oldClass subclasses do: [ :each | self migrateClass: each superclass: newClass ]. self basicRemoveClass: oldClass. ^newClass ! renameClass: aClass to: aString self basicRenameClass: aClass to: aString. SystemAnnouncer current announce: (ClassRenamed new theClass: aClass; yourself) ! ! !ClassBuilder methodsFor: 'copying'! copyClass: aClass named: aString | newClass | newClass := self addSubclassOf: aClass superclass named: aString instanceVariableNames: aClass instanceVariableNames package: aClass package name. self copyClass: aClass to: newClass. ^newClass ! copyClass: aClass to: anotherClass anotherClass comment: aClass comment. aClass methodDictionary values do: [ :each | Compiler new install: each source forClass: anotherClass category: each category ]. self basicClass: anotherClass class instanceVariables: aClass class instanceVariableNames. aClass class methodDictionary values do: [ :each | Compiler new install: each source forClass: anotherClass class category: each category ]. self setupClass: anotherClass ! ! !ClassBuilder methodsFor: 'method definition'! installMethod: aCompiledMethod forClass: aBehavior category: aString aCompiledMethod category: aString. aBehavior addCompiledMethod: aCompiledMethod. self setupClass: aBehavior. ^aCompiledMethod ! ! !ClassBuilder methodsFor: 'private'! basicAddSubclassOf: aClass named: aString instanceVariableNames: aCollection package: packageName < smalltalk.addClass(aString, aClass, aCollection, packageName); return smalltalk[aString] > ! basicClass: aClass instanceVariableNames: aString self basicClass: aClass instanceVariables: (self instanceVariableNamesFor: aString) ! basicClass: aClass instanceVariables: aCollection aClass isMetaclass ifFalse: [self error: aClass name, ' is not a metaclass']. aClass basicAt: 'iVarNames' put: aCollection ! basicRemoveClass: aClass ! basicRenameClass: aClass to: aString < smalltalk[aString] = aClass; delete smalltalk[aClass.className]; aClass.className = aString; > ! basicSwapClassNames: aClass with: anotherClass < var tmp = aClass.className; aClass.className = anotherClass.className; anotherClass.className = tmp; > ! rawRenameClass: aClass to: aString < smalltalk[aString] = aClass; > ! ! !ClassBuilder methodsFor: 'public'! setupClass: aClass ! ! Object subclass: #ClassCategoryReader instanceVariableNames: 'class category' package: 'Kernel-Classes'! !ClassCategoryReader commentStamp! ClassCategoryReader represents a mechanism for retrieving class descriptions stored on a file.! !ClassCategoryReader methodsFor: 'accessing'! class: aClass category: aString class := aClass. category := aString ! ! !ClassCategoryReader methodsFor: 'fileIn'! scanFrom: aChunkParser | chunk | [chunk := aChunkParser nextChunk. chunk isEmpty] whileFalse: [ self compileMethod: chunk]. ClassBuilder new setupClass: class ! ! !ClassCategoryReader methodsFor: 'initialization'! initialize super initialize. ! ! !ClassCategoryReader methodsFor: 'private'! compileMethod: aString Compiler new install: aString forClass: class category: category ! ! Object subclass: #ClassCommentReader instanceVariableNames: 'class' package: 'Kernel-Classes'! !ClassCommentReader commentStamp! ClassCommentReader represents a mechanism for retrieving class comments stored on a file. See `ClassCategoryReader` too.! !ClassCommentReader methodsFor: 'accessing'! class: aClass class := aClass ! ! !ClassCommentReader methodsFor: 'fileIn'! scanFrom: aChunkParser | chunk | chunk := aChunkParser nextChunk. chunk isEmpty ifFalse: [ self setComment: chunk]. ! ! !ClassCommentReader methodsFor: 'initialization'! initialize super initialize. ! ! !ClassCommentReader methodsFor: 'private'! setComment: aString class comment: aString ! ! Object subclass: #ClassSorterNode instanceVariableNames: 'theClass level nodes' package: 'Kernel-Classes'! !ClassSorterNode methodsFor: 'accessing'! getNodesFrom: aCollection | children others | children := #(). others := #(). aCollection do: [:each | (each superclass = self theClass) ifTrue: [children add: each] ifFalse: [others add: each]]. nodes:= children collect: [:each | ClassSorterNode on: each classes: others level: self level + 1] ! level ^level ! level: anInteger level := anInteger ! nodes ^nodes ! theClass ^theClass ! theClass: aClass theClass := aClass ! ! !ClassSorterNode methodsFor: 'visiting'! traverseClassesWith: aCollection "sort classes alphabetically Issue #143" aCollection add: self theClass. (self nodes sorted: [:a :b | a theClass name <= b theClass name ]) do: [:aNode | aNode traverseClassesWith: aCollection ]. ! ! !ClassSorterNode class methodsFor: 'instance creation'! on: aClass classes: aCollection level: anInteger ^self new theClass: aClass; level: anInteger; getNodesFrom: aCollection; yourself ! !