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6.28 Class
- Defined in namespace Smalltalk
- Category: Language-Implementation
- I am THE class object. My instances are the classes of the system.
I provide information commonly attributed to classes: namely, the
class name, class comment (you wouldn't be reading this if it
weren't for me), a list of the instance variables of the class, and
the class category.
6.28.1 Class: accessing instances and variables
- addClassVarName: aString
- Add a class variable with the given name to the class pool dictionary
- addSharedPool: aDictionary
- Add the given shared pool to the list of the class' pool dictionaries
- allClassVarNames
- Answer the names of the variables in the receiver's class pool dictionary and in each of the superclasses' class pool dictionaries
- category
- Answer the class category
- category: aString
- Change the class category to aString
- classPool
- Answer the class pool dictionary
- classVarNames
- Answer the names of the variables in the class pool dictionary
- comment
- Answer the class comment
- comment: aString
- Change the class name
- environment
- Answer `environment'.
- environment: aNamespace
- Set the receiver's environment to aNamespace and recompile everything
- initialize
- redefined in children (?)
- name
- Answer the class name
- removeClassVarName: aString
- Removes the class variable from the class, error if not present, or still in use.
- removeSharedPool: aDictionary
- Remove the given dictionary to the list of the class' pool dictionaries
- sharedPools
- Return the names of the shared pools defined by the class
6.28.2 Class: filing
- fileOutDeclarationOn: aFileStream
- File out class definition to aFileStream
- fileOutHeaderOn: aFileStream
- Write date and time stamp to aFileStream
- fileOutOn: aFileStream
- File out complete class description: class definition, class and instance methods
6.28.3 Class: instance creation
- extend
- Redefine a version of the receiver in the current namespace. Note: this method can bite you in various ways when sent to system classes; read the section on namespaces in the manual for some examples of the problems you can encounter.
- subclass: classNameString
- instanceVariableNames: stringInstVarNames
classVariableNames: stringOfClassVarNames
poolDictionaries: stringOfPoolNames
category: categoryNameString
Define a fixed subclass of the receiver with the given name, instance variables, class variables, pool dictionaries and category. If the class is already defined, if necessary, recompile everything needed.
- variableByteSubclass: classNameString
- instanceVariableNames: stringInstVarNames
classVariableNames: stringOfClassVarNames
poolDictionaries: stringOfPoolNames
category: categoryNameString
Define a byte variable subclass of the receiver with the given name, instance variables (must be "), class variables, pool dictionaries and category. If the class is already defined, if necessary, recompile everything needed.
- variableSubclass: classNameString
- instanceVariableNames: stringInstVarNames
classVariableNames: stringOfClassVarNames
poolDictionaries: stringOfPoolNames
category: categoryNameString
Define a variable pointer subclass of the receiver with the given name, instance variables, class variables, pool dictionaries and category. If the class is already defined, if necessary, recompile everything needed.
- variableWordSubclass: classNameString
- instanceVariableNames: stringInstVarNames
classVariableNames: stringOfClassVarNames
poolDictionaries: stringOfPoolNames
category: categoryNameString
Define a word variable subclass of the receiver with the given name, instance variables (must be "), class variables, pool dictionaries and category. If the class is already defined, if necessary, recompile everything needed.
6.28.4 Class: instance creation - alternative
- categoriesFor: method are: categories
- Don't use this, it is only present to file in from IBM Smalltalk
- subclass: classNameString classInstanceVariableNames: stringClassInstVarNames instanceVariableNames: stringInstVarNames classVariableNames: stringOfClassVarNames poolDictionaries: stringOfPoolNames
- Don't use this, it is only present to file in from IBM Smalltalk
- subclass: classNameString instanceVariableNames: stringInstVarNames classVariableNames: stringOfClassVarNames poolDictionaries: stringOfPoolNames
- Don't use this, it is only present to file in from IBM Smalltalk
- variableByteSubclass: classNameString classInstanceVariableNames: stringClassInstVarNames classVariableNames: stringOfClassVarNames poolDictionaries: stringOfPoolNames
- Don't use this, it is only present to file in from IBM Smalltalk
- variableByteSubclass: classNameString classVariableNames: stringOfClassVarNames poolDictionaries: stringOfPoolNames
- Don't use this, it is only present to file in from IBM Smalltalk
- variableLongSubclass: classNameString classInstanceVariableNames: stringClassInstVarNames classVariableNames: stringOfClassVarNames poolDictionaries: stringOfPoolNames
- Don't use this, it is only present to file in from IBM Smalltalk
- variableLongSubclass: classNameString classVariableNames: stringOfClassVarNames poolDictionaries: stringOfPoolNames
- Don't use this, it is only present to file in from IBM Smalltalk
- variableSubclass: classNameString classInstanceVariableNames: stringClassInstVarNames instanceVariableNames: stringInstVarNames classVariableNames: stringOfClassVarNames poolDictionaries: stringOfPoolNames
- Don't use this, it is only present to file in from IBM Smalltalk
- variableSubclass: classNameString instanceVariableNames: stringInstVarNames classVariableNames: stringOfClassVarNames poolDictionaries: stringOfPoolNames
- Don't use this, it is only present to file in from IBM Smalltalk
6.28.5 Class: printing
- article
- Answer an article (`a' or `an') which is ok for the receiver's name
- printOn: aStream
- Print a representation of the receiver on aStream
- storeOn: aStream
- Store Smalltalk code compiling to the receiver on aStream
6.28.6 Class: saving and loading
- binaryRepresentationVersion
- Answer a number >= 0 which represents the current version of the object's representation. The default implementation answers zero.
- convertFromVersion: version withFixedVariables: fixed
- indexedVariables: indexed
for: anObjectDumper
This method is called if a VersionableObjectProxy is attached to a class. It receives the version number that was stored for the object (or nil if the object did not use a VersionableObjectProxy), the fixed instance variables, the indexed instance variables, and the ObjectDumper that has read the object. The default implementation ignores the version and simply fills in an instance of the receiver with the given fixed and indexed instance variables (nil if the class instances are of fixed size). If instance variables were removed from the class, extras are ignored; if the class is now fixed and used to be indexed, indexed is not used.
- nonVersionedInstSize
- Answer the number of instance variables that the class used to have when objects were stored without using a VersionableObjectProxy. The default implementation answers the current instSize.
6.28.7 Class: testing
- = aClass
- Returns true if the two class objects are to be considered equal.
6.28.8 Class: testing functionality
- asClass
- Answer the receiver.
- isClass
- Answer `true'.
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