Smalltalk current createPackage: 'Kernel-Classes' properties: #{}!
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
!
allSubclasses
| result |
result := self subclasses.
self subclasses do: [:each |
result addAll: each allSubclasses].
^result
!
comment
^(self basicAt: 'comment') ifNil: ['']
!
comment: aString
self basicAt: 'comment' put: aString
!
commentStamp
^ClassCommentReader new
class: self;
yourself
!
commentStamp: aStamp prior: prior
^self commentStamp
!
instanceVariableNames
<return self.iVarNames>
!
methodAt: aString
<return smalltalk.methods(self)[aString]>
!
methodDictionary
<var dict = smalltalk.HashedCollection._new();
var methods = self.fn.prototype.methods;
for(var i in methods) {
if(methods[i].selector) {
dict._at_put_(methods[i].selector, methods[i]);
}
};
return dict>
!
methodsFor: aString
^ClassCategoryReader new
class: self category: aString;
yourself
!
methodsFor: aString stamp: aStamp
"Added for compatibility, right now ignores stamp."
^self methodsFor: aString
!
name
<return self.className || nil>
!
protocols
| protocols |
protocols := Array new.
self methodDictionary do: [:each |
(protocols includes: each category) ifFalse: [
protocols add: each category]].
^protocols sort
!
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
<return self.fn.prototype>
!
subclasses
<return smalltalk.subclasses(self)>
!
superclass
<return self.superclass || nil>
!
withAllSubclasses
^(Array with: self) addAll: self allSubclasses; yourself
! !
!Behavior methodsFor: 'compiling'!
addCompiledMethod: aMethod
<smalltalk.addMethod(aMethod.selector._asSelector(), aMethod, self)>
!
compile: aString
self compile: aString category: ''
!
compile: aString category: anotherString
| method |
method := Compiler new load: aString forClass: self.
method category: anotherString.
self addCompiledMethod: method
!
removeCompiledMethod: aMethod
<delete self.fn.prototype[aMethod.selector._asSelector()];
delete self.fn.prototype.methods[aMethod.selector];
smalltalk.init(self);>
! !
!Behavior methodsFor: 'instance creation'!
basicNew
<return new self.fn()>
!
new
^self basicNew initialize
! !
!Behavior methodsFor: 'testing'!
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]
!
package
<return self.pkg>
!
package: aPackage
<self.pkg = aPackage>
!
rename: aString
<
smalltalk[aString] = self;
delete smalltalk[self.className];
self.className = 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: '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'!
instanceClass
<return self.instanceClass>
!
instanceVariableNames: aCollection
ClassBuilder new
class: self instanceVariableNames: aCollection
! !
!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: 'class creation'!
class: aClass instanceVariableNames: aString
aClass isMetaclass ifFalse: [self error: aClass name, ' is not a metaclass'].
aClass basicAt: 'iVarNames' put: (self instanceVariableNamesFor: aString).
self setupClass: aClass
!
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.
^newClass
! !
!ClassBuilder methodsFor: 'private'!
addSubclassOf: aClass named: aString instanceVariableNames: aCollection
<smalltalk.addClass(aString, aClass, aCollection);
return smalltalk[aString]>
!
addSubclassOf: aClass named: aString instanceVariableNames: aCollection package: packageName
<smalltalk.addClass(aString, aClass, aCollection, packageName);
return smalltalk[aString]>
!
copyClass: aClass named: aString
| newClass |
newClass := self
addSubclassOf: aClass superclass
named: aString
instanceVariableNames: aClass instanceVariableNames
package: aClass package name.
self setupClass: newClass.
aClass methodDictionary values do: [:each |
newClass addCompiledMethod: (Compiler new load: each source forClass: newClass).
(newClass methodDictionary at: each selector) category: each category].
aClass class methodDictionary values do: [:each |
newClass class addCompiledMethod: (Compiler new load: each source forClass: newClass class).
(newClass class methodDictionary at: each selector) category: each category].
self setupClass: newClass.
^newClass
!
instanceVariableNamesFor: aString
^(aString tokenize: ' ') reject: [:each | each isEmpty]
!
setupClass: aClass
<smalltalk.init(aClass);>
! !
Object subclass: #ClassCategoryReader
instanceVariableNames: 'class category chunkParser'
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]
! !
!ClassCategoryReader methodsFor: 'initialization'!
initialize
super initialize.
chunkParser := ChunkParser new.
! !
!ClassCategoryReader methodsFor: 'private'!
compileMethod: aString
| method compiler |
method := (compiler := Compiler new) load: aString forClass: class.
method category: category.
class addCompiledMethod: method.
compiler setupClass: class.
! !
Object subclass: #ClassCommentReader
instanceVariableNames: 'class chunkParser'
package: 'Kernel-Classes'!
!ClassCommentReader commentStamp!
ClassCommentReader represents a mechanism for retrieving class descriptions 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.
chunkParser := ChunkParser new.
! !
!ClassCommentReader methodsFor: 'private'!
setComment: aString
class comment: aString
! !