/usr/share/gnu-smalltalk/kernel/ClassDesc.st is in gnu-smalltalk-common 3.2.5-1.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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|
| ClassDescription Method Definitions
|
|
======================================================================"
"======================================================================
|
| Copyright 1988,92,94,95,99,2000,2001,2002,2003,2005,2008
| Free Software Foundation, Inc.
| Written by Steve Byrne.
|
| This file is part of the GNU Smalltalk class library.
|
| The GNU Smalltalk class library is free software; you can redistribute it
| and/or modify it under the terms of the GNU Lesser General Public License
| as published by the Free Software Foundation; either version 2.1, or (at
| your option) any later version.
|
| The GNU Smalltalk class library is distributed in the hope that it will be
| useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
| General Public License for more details.
|
| You should have received a copy of the GNU Lesser General Public License
| along with the GNU Smalltalk class library; see the file COPYING.LIB.
| If not, write to the Free Software Foundation, 59 Temple Place - Suite
| 330, Boston, MA 02110-1301, USA.
|
======================================================================"
Behavior subclass: ClassDescription [
<category: 'Language-Implementation'>
<comment: 'My instances provide methods that access classes by category, and
allow whole categories of classes to be filed out to external disk
files.'>
createGetMethod: what default: value [
"Create a method accessing the variable `what', with a default value
of `value', using lazy initialization"
<category: 'organization of messages and classes'>
^(super createGetMethod: what default: value) methodCategory: 'accessing'
]
createGetMethod: what [
"Create a method accessing the variable `what'."
<category: 'organization of messages and classes'>
^(super createGetMethod: what) methodCategory: 'accessing'
]
createSetMethod: what [
"Create a method which sets the variable `what'."
<category: 'organization of messages and classes'>
^(super createSetMethod: what) methodCategory: 'accessing'
]
defineAsyncCFunc: cFuncNameString withSelectorArgs: selectorAndArgs args: argsArray [
"See documentation. This function is deprecated, you should use
the <asyncCCall: ... > special syntax instead."
<category: 'organization of messages and classes'>
^(super
defineAsyncCFunc: cFuncNameString
withSelectorArgs: selectorAndArgs
args: argsArray) methodCategory: 'C call-outs'
]
defineCFunc: cFuncNameString withSelectorArgs: selectorAndArgs returning: returnTypeSymbol args: argsArray [
"See documentation. This function is deprecated, you should use
the <asyncCCall: ... > special syntax instead."
<category: 'organization of messages and classes'>
^(super
defineCFunc: cFuncNameString
withSelectorArgs: selectorAndArgs
returning: returnTypeSymbol
args: argsArray) methodCategory: 'C call-outs'
]
classify: aSelector under: aString [
"Put the method identified by the selector aSelector
under the category given by aString."
<category: 'organization of messages and classes'>
^self >> aSelector methodCategory: aString
]
removeCategory: aString [
"Remove from the receiver every method belonging to the given category"
<category: 'organization of messages and classes'>
| selector method category |
methodDictionary isNil ifTrue: [^self].
methodDictionary copy associationsDo:
[:assoc |
method := assoc value.
method methodCategory = category ifTrue: [methodDictionary remove: assoc]]
]
whichCategoryIncludesSelector: selector [
"Answer the category for the given selector, or nil if the selector is
not found"
<category: 'organization of messages and classes'>
| method |
methodDictionary isNil ifTrue: [^nil].
method := methodDictionary at: selector ifAbsent: [^nil].
^method methodCategory
]
copy: selector from: aClass [
"Copy the given selector from aClass, assigning it the same category"
<category: 'copying'>
| method |
method := aClass compiledMethodAt: selector.
self addSelector: selector withMethod: (method withNewMethodClass: self)
]
copy: selector from: aClass classified: categoryName [
"Copy the given selector from aClass, assigning it the given category"
<category: 'copying'>
| method |
method := (aClass compiledMethodAt: selector) withNewMethodClass: self.
method methodCategory: categoryName.
self addSelector: selector withMethod: method
]
copyAll: arrayOfSelectors from: class [
"Copy all the selectors in arrayOfSelectors from class, assigning them the
same category they have in class"
<category: 'copying'>
arrayOfSelectors do: [:selector | self copy: selector from: class]
]
copyAll: arrayOfSelectors from: class classified: categoryName [
"Copy all the selectors in arrayOfSelectors from aClass, assigning them
the given category"
<category: 'copying'>
arrayOfSelectors do:
[:selector |
self
copy: selector
from: class
classified: categoryName]
]
copyAllCategoriesFrom: aClass [
"Copy all the selectors in aClass, assigning them the original category"
<category: 'copying'>
| method |
aClass selectors do: [:selector | self copy: selector from: aClass]
]
copyCategory: categoryName from: aClass [
"Copy all the selectors in from aClass that belong to the given category"
<category: 'copying'>
| method |
aClass selectors do:
[:selector |
method := aClass compiledMethodAt: selector.
method methodCategory = categoryName
ifTrue: [self copy: selector from: aClass]]
]
copyCategory: categoryName from: aClass classified: newCategoryName [
"Copy all the selectors in from aClass that belong to the given category,
reclassifying them as belonging to the given category"
<category: 'copying'>
| method |
aClass selectors do:
[:selector |
method := aClass compiledMethodAt: selector.
method methodCategory = categoryName
ifTrue:
[self
copy: selector
from: aClass
classified: newCategoryName]]
]
compile: code classified: categoryName [
"Compile code in the receiver, assigning the method to the given category.
Answer the newly created CompiledMethod, or nil if an error was found."
<category: 'compiling'>
| method |
method := self compile: code.
method notNil ifTrue: [method methodCategory: categoryName].
^method
]
compile: code classified: categoryName ifError: block [
"Compile method source and install in method category, categoryName. If
there are parsing errors, invoke exception block, 'block' (see
compile:ifError:). Return the method"
<category: 'compiling'>
| method |
method := self compile: code
ifError:
[:f :l :e |
^block
value: f
value: l
value: e].
method methodCategory: categoryName.
^method
]
compile: code classified: categoryName notifying: requestor [
"Compile method source and install in method category, categoryName. If
there are parsing errors, send an error message to requestor"
<category: 'compiling'>
| method |
method := self compile: code notifying: requestor.
method notNil ifTrue: [method methodCategory: categoryName].
^method
]
nameIn: aNamespace [
"Answer the class name when the class is referenced from aNamespace"
<category: 'printing'>
^self environment == aNamespace
ifTrue: [self name asString]
ifFalse: [(self environment nameIn: aNamespace) , '.' , self name]
]
printOn: aStream in: aNamespace [
"Print on aStream the class name when the class is referenced from
aNamespace"
<category: 'printing'>
self environment == aNamespace
ifFalse:
[self environment printOn: aStream in: aNamespace.
aStream nextPut: $.].
aStream nextPutAll: self name
]
classVariableString [
<category: 'printing'>
self subclassResponsibility
]
instanceVariableString [
"Answer a string containing the name of the receiver's instance variables."
<category: 'printing'>
| stream |
instanceVariables isNil ifTrue: [^''].
stream := WriteStream on: String new.
instanceVariables do:
[:instVarName |
stream
nextPutAll: instVarName;
nextPut: $ ].
^stream contents
]
sharedVariableString [
<category: 'printing'>
self subclassResponsibility
]
fileOutOn: aFileStream [
"File out complete class description: class definition, class and
instance methods. Requires package Parser."
<category: 'filing'>
self subclassResponsibility
]
fileOut: fileName [
"Open the given file and to file out a complete class description to it.
Requires package Parser."
<category: 'filing'>
| aFileStream |
aFileStream := FileStream open: fileName mode: FileStream write.
Transcript
nextPutAll: 'Filing out class to: ';
nextPutAll: fileName.
self fileOutOn: aFileStream.
aFileStream close
]
fileOutCategory: categoryName to: fileName [
"File out all the methods belonging to the method category, categoryName,
to the fileName file. Requires package Parser."
<category: 'filing'>
| aFileStream |
aFileStream := FileStream open: fileName mode: FileStream write.
Transcript
nextPutAll: 'Filing out a category to: ';
nextPutAll: fileName.
self fileOutCategory: categoryName toStream: aFileStream.
aFileStream close
]
fileOutCategory: categoryName toStream: aFileStream [
"File out the given selector to a FileStream. Requires package Parser."
<category: 'filing'>
self notYetImplemented
]
fileOutSelector: selector to: fileName [
"File out the given selector to fileName. Requires package Parser."
<category: 'filing'>
| aFileStream |
aFileStream := FileStream open: fileName mode: FileStream write.
Transcript
nextPutAll: 'Filing out a selector to: ';
nextPutAll: fileName.
self fileOutSelector: selector toStream: aFileStream.
aFileStream close
]
fileOutSelector: selector toStream: aFileStream [
"File out the given selector to a FileStream. Requires package Parser."
<category: 'filing'>
self notYetImplemented
]
collectCategories [
"Answer all the method categories, sorted by name"
<category: 'private'>
| categories |
methodDictionary isNil ifTrue: [^#()].
categories := Set new.
methodDictionary do: [:method | categories add: method methodCategory].
^categories asSortedCollection
]
binding [
"Answer a VariableBinding object whose value is the receiver"
<category: 'conversion'>
^self environment associationAt: self asClass name
]
asClass [
<category: 'conversion'>
self subclassResponsibility
]
asMetaclass [
"Answer the metaclass associated to the receiver"
<category: 'conversion'>
^self asClass class
]
addSharedPool: aDictionary [
"Add the given shared pool to the list of the class' pool dictionaries"
<category: 'parsing class declarations'>
self subclassResponsibility
]
import: aDictionary [
"Add the given shared pool to the list of the class' pool dictionaries"
"If you promote this method, you must also promote the version
in Builtins.st."
<category: 'parsing class declarations'>
self addSharedPool: aDictionary
]
]
|