I represent a special dictionary that supports protocol for asking questions about the structure of the system. Other than class names, I contain (print this)...
Smalltalk keys select: [:k | ((Smalltalk at: k) isKindOf: Class) not]
thenCollect: [:k | k -> (Smalltalk at: k) class]

browsing

browseAllCallsOn: browseAllCallsOn:and: browseAllCallsOn:localTo: browseAllImplementorsOf: browseAllImplementorsOf:localTo: browseAllImplementorsOfList: browseAllImplementorsOfList:title: browseAllMethodsInCategory: browseAllObjectReferencesTo:except:ifNone: browseAllSelect: browseAllSelect:name:autoSelect: browseAllUnSentMessages browseAllUnimplementedCalls browseChangedMessages browseClassCommentsWithString: browseMessageList:name: browseMessageList:name:autoSelect: browseMethodsWhoseNamesContain: browseMethodsWithSourceString: browseMethodsWithString: browseMethodsWithString:matchCase: browseObsoleteReferences showMenuOf:withFirstItem:ifChosenDo: showMenuOf:withFirstItem:ifChosenDo:withCaption:

	class names
	classNamed: classNames flushClassNameCache hasClassNamed: removeClassFromSystem:logged: removeClassNamed: renameClass:as: renameClassNamed:as:

	copying
	assureUniClass veryDeepCopyWith: vocabularyDemanded

	dictionary access
	associationAtOrAbove:ifAbsent: associationOrUndeclaredAt: at:put: atOrAbove:ifAbsent: atOrBelow:ifAbsent: environmentForCategory: includesKeyOrAbove: kernelCategories scopeFor:from:envtAndPathIfFound:

housekeeping

browseObsoleteMethodReferences cleanOutUndeclared condenseChanges condenseSources findNamesLikeGeorge: forgetDoIts macroBenchmark1 macroBenchmark2 macroBenchmark3 macroBenchmarks makeExternalRelease makeInternalRelease makeSqueaklandRelease obsoleteBehaviors obsoleteClasses obsoleteMethodReferences reclaimDependents recompileAllFrom: removeAllLineFeeds removeEmptyMessageCategories sortAllCategories standardTime: testDecompiler testFormatter testFormatter2 verifyChanges

	image, changes name
	changeImageNameTo: changesName fullNameForChangesNamed: fullNameForImageNamed: imageName imageName: imagePath sourcesName vmPath

	memory space
	bytesLeft bytesLeft: bytesLeftString createStackOverflow garbageCollect garbageCollectMost installLowSpaceWatcher lowSpaceThreshold lowSpaceWatcher lowSpaceWatcherProcess memoryHogs okayToProceedEvenIfSpaceIsLow primBytesLeft primLowSpaceSemaphore: primSignalAtBytesLeft: primitiveGarbageCollect signalLowSpace useUpMemory useUpMemoryWithArrays useUpMemoryWithContexts useUpMemoryWithTinyObjects

miscellaneous

beep compareTallyIn:to: disablePowerManager disablePowerManager: enablePowerManager exitToDebugger extraVMMemory extraVMMemory: forceDisplayUpdate fullScreenMode: getSystemAttribute: getVMParameters gifReaderClass handleUserInterrupt hasMorphic imageImports imageReaderClass itsyVoltage jpegReaderClass listBuiltinModule: listBuiltinModules listLoadedModule: listLoadedModules logError:inContext:to: platformName setMacFileInfoOn: spaceForInstancesOf: spaceTally spaceTallyTo: swapBytesIn:from:to: unloadModule: verifyMorphicAvailability viewImageImports vmParameterAt: vmParameterAt:put: vmVersion

	objects from disk
	objectForDataStream: storeDataOn:

	printing
	printElementsOn:

	profiling
	clearProfile dumpProfile profile: startProfiling stopProfiling

retrieving

allBehaviorsDo: allCallsOn: allCallsOn:and: allClasses allClassesDo: allClassesImplementing: allGlobalRefs allGlobalRefsWithout: allImplementedMessages allImplementedMessagesWithout: allImplementorsOf: allImplementorsOf:localTo: allMethodsInCategory: allMethodsWithSourceString:matchCase: allMethodsWithString: allObjectsDo: allObjectsSelect: allPrimitiveMessages allPrimitiveMethodsInCategories: allSelect: allSelectNoDoits: allSentMessages allSentMessagesWithout: allUnSentMessages allUnSentMessagesIn: allUnSentMessagesWithout: allUnimplementedCalls allUnusedClassesWithout: isThereAnImplementorOf: numberOfImplementorsOf: pointersTo: pointersTo:except: pointersToItem:of: poolUsers selectorsWithAnyImplementorsIn: unimplemented

	security

shrinking

abandonSources abandonTempNames cleanUpUndoCommands computeImageSegmentation discard3D discardDiscards discardFFI discardFlash discardIRC discardMIDI discardMVC discardMorphic discardNetworking discardOddsAndEnds discardPWS discardPluggableWebServer discardSUnit discardSoundAndSpeech discardSoundSynthesis discardSpeech discardTrueType discardVMConstruction discardWonderland fileOutAndRemove: fileOutAndRemove:retainingRoots: fileOutAndRemove:withOtherClasses:andOtherMessages: lastRemoval majorShrink presumedSentMessages printSpaceAnalysis printSpaceAnalysis:on: printSpaceDifferenceFrom:to: removeAllUnSentMessages removeNormalCruft removeSelector: reportClassAndMethodRemovalsFor: unusedClasses unusedClassesAndMethodsWithout: writeImageSegmentsFrom:withKernel: zapAllOtherProjects zapMVCprojects

snapshot and quit

add:toList:after: addToShutDownList: addToShutDownList:after: addToStartUpList: addToStartUpList:after: getFileNameFromUser isMorphic lastQuitLogPosition processShutDownList: processStartUpList: quitPrimitive readDocumentFile removeFromShutDownList: removeFromStartUpList: saveAs saveAsEmbeddedImage saveAsNewVersion saveChangesInFileNamed: saveImageInFileNamed: saveImageSegments saveSession send:toClassesNamedIn:with: setGCParameters setPlatformPreferences shutDown shutDownSound snapshot:andQuit: snapshot:andQuit:embedded: snapshotEmbeddedPrimitive snapshotPrimitive unbindExternalPrimitives

sources, change log

aboutThisSystem assureStartupStampLogged changes closeSourceFiles copyright currentChangeSetString currentProjectDo: datedVersion endianness externalizeSources forceChangesToDisk internalizeChangeLog internalizeSources isBigEndian isLittleEndian lastUpdateString logChange: newChanges: noChanges openSourceFiles recover: systemInformationString timeStamp: version writeRecentCharacters:toFileNamed: writeRecentToFile

	special objects
	clearExternalObjects compactClassesArray externalObjects hasSpecialSelector:ifTrueSetByte: recreateSpecialObjectsArray registerExternalObject: specialNargsAt: specialObjectsArray specialSelectorAt: specialSelectorSize specialSelectors unregisterExternalObject:

	accessing	top
	organization Return the organizer for the receiver

	browsing	top
	browseAllCallsOn: Create and schedule a message browser on each method that refers to aLiteral. For example, Smalltalk browseAllCallsOn: #open:label:.
	browseAllCallsOn:and: Create and schedule a message browser on each method that calls on the two Symbols, literal1 and literal2. For example, Smalltalk browseAllCallsOn: #at: and: #at:put:.
	browseAllCallsOn:localTo: Create and schedule a message browser on each method in or below the given class that refers to aLiteral. For example, Smalltalk browseAllCallsOn: #open:label:.
	browseAllImplementorsOf: Create and schedule a message browser on each method that implements the message whose selector is the argument, selector. For example, Smalltalk browseAllImplementorsOf: #at:put:.
	browseAllImplementorsOf:localTo: Create and schedule a message browser on each method in or below the given class that implements the message whose selector is the argument, selector. For example, Smalltalk browseAllImplementorsOf: #at:put: localTo: Dictionary.
	browseAllImplementorsOfList: Create and schedule a message browser on each method that implements the message whose selector is in the argument selectorList. For example, Smalltalk browseAllImplementorsOf: #(at:put: size). 1/16/96 sw: defer to the titled version
	browseAllImplementorsOfList:title: Create and schedule a message browser on each method that implements the message whose selector is in the argument selectorList. For example, Smalltalk browseAllImplementorsOf: #(at:put: size). 1/16/96 sw: this variant adds the title argument. 1/24/96 sw: use a SortedCollection 2/1/96 sw: show normal cursor
	browseAllMethodsInCategory:
	browseAllObjectReferencesTo:except:ifNone: Bring up a list inspector on the objects that point to anObject. If there are none, then evaluate aBlock on anObject.
	browseAllSelect: Create and schedule a message browser on each method that, when used as the block argument to aBlock gives a true result. For example, Smalltalk browseAllSelect: [:method | method numLiterals > 10].
	browseAllSelect:name:autoSelect: Create and schedule a message browser on each method that, when used as the block argument to aBlock gives a true result. Do not return an #DoIt traces.
	browseAllUnSentMessages Create and schedule a message browser on each method whose message is not sent in any method in the system.
	browseAllUnimplementedCalls Create and schedule a message browser on each method that includes a message that is not implemented in any object in the system.
	browseChangedMessages Create and schedule a message browser on each method that has been changed.
	browseClassCommentsWithString: Smalltalk browseClassCommentsWithString: 'my instances'
	browseMessageList:name: Create and schedule a MessageSet browser on messageList.
	browseMessageList:name:autoSelect: Create and schedule a MessageSet browser on the message list.
	browseMethodsWhoseNamesContain: Launch a tool which shows all methods whose names contain the given string; case-insensitive. ¥ 1/16/1996 sw, at the dawn of Squeak: this was the classic implementation that provided the underpinning for the 'method names containing it' (cmd-shift-W) feature that has always been in Squeak -- the feature that later inspired the MethodFinder (aka SelectorBrowser). ¥ sw 7/27/2001: Switched to showing a MessageNames tool rather than a message-list browser, if in Morphic.
	browseMethodsWithSourceString: Smalltalk browseMethodsWithSourceString: 'SourceString'
	browseMethodsWithString: Launch a browser on all methods that contain string literals with aString as a substring. The search is case-insensitive, unless the shift key is pressed, in which case the search is case-sensitive.
	browseMethodsWithString:matchCase: Launch a browser on all methods that contain string literals with aString as a substring. Make the search case-sensitive or insensitive as dictated by the caseSensitive boolean parameter
	browseObsoleteReferences Smalltalk browseObsoleteReferences
	showMenuOf:withFirstItem:ifChosenDo: Show a sorted menu of the given selectors, preceded by firstItem, and all abbreviated to 40 characters. Evaluate choiceBlock if a message is chosen.
	showMenuOf:withFirstItem:ifChosenDo:withCaption: Show a sorted menu of the given selectors, preceded by firstItem, and all abbreviated to 40 characters. Use aCaption as the menu title, if it is not nil. Evaluate choiceBlock if a message is chosen.

	class names	top
	classNamed: className is either a class name or a class name followed by ' class'. Answer the class or metaclass it names
	classNames Answer a SortedCollection of all class names.
	flushClassNameCache Smalltalk flushClassNameCache
	hasClassNamed: Answer whether there is a class of the given name, but don't intern aString if it's not alrady interned. 4/29/96 sw
	removeClassFromSystem:logged: Delete the class, aClass, from the system, but log the removal neither to the current change set nor to the changes log
	removeClassNamed: Invoked from fileouts: if there is currently a class in the system named aName, then remove it. If anything untoward happens, report it in the Transcript.
	renameClass:as: Rename the class, aClass, to have the title newName.
	renameClassNamed:as: Invoked from fileouts: if there is currently a class in the system named oldName, then rename it to newName. If anything untoward happens, report it in the Transcript.

	copying	top
	assureUniClass Assure that the receiver has a uniclass. Or rather, in this case, stop short of fulfilling such a request
	veryDeepCopyWith: Return self. I can't be copied. Do not record me.
	vocabularyDemanded Answer the vocabulary that the receiver really would like to use in a Viewer

	dictionary access	top
	associationAtOrAbove:ifAbsent: Compatibility with environment protocol.
	associationOrUndeclaredAt: return an association or install in undeclared. Used for mating up ImageSegments.
	at:put: Override from Dictionary to check Undeclared and fix up references to undeclared variables.
	atOrAbove:ifAbsent: Compatibility with environment protocol.
	atOrBelow:ifAbsent: Compatibility with environment protocol.
	environmentForCategory: Default response for non-partitioned systems
	includesKeyOrAbove: Compatibility with environment protocol.
	kernelCategories
	scopeFor:from:envtAndPathIfFound: Null compatibility with partitioning into environments.

	housekeeping	top
	browseObsoleteMethodReferences Open a browser on all referenced behaviors that are obsolete
	cleanOutUndeclared
	condenseChanges Smalltalk condenseChanges
	condenseSources Smalltalk condenseSources
	findNamesLikeGeorge: Smalltalk findNamesLikeGeorge: 'george'
	forgetDoIts Smalltalk forgetDoIts
	macroBenchmark1 Smalltalk macroBenchmark1
	macroBenchmark2 Smalltalk macroBenchmark2
	macroBenchmark3 Smalltalk macroBenchmark3
	macroBenchmarks Reports an array of times taken to run a number of macro operations indicative of typical Squeak activity, each run after a full garbageCollection, and with exactly 10Mb of free space available. In addition it puts up a window with recent VM statistics local to each test.
	makeExternalRelease Smalltalk makeExternalRelease
	makeInternalRelease Smalltalk makeInternalRelease
	makeSqueaklandRelease Smalltalk makeSqueaklandRelease
	obsoleteBehaviors Smalltalk obsoleteBehaviors inspect
	obsoleteClasses Smalltalk obsoleteClasses inspect
	obsoleteMethodReferences Smalltalk obsoleteMethodReferences
	reclaimDependents No-opped due to weak dictionary in use
	recompileAllFrom: Recompile all classes, starting with given name.
	removeAllLineFeeds Smalltalk removeAllLineFeeds
	removeEmptyMessageCategories Smalltalk removeEmptyMessageCategories
	sortAllCategories
	standardTime: Times the execution of aBlock in milliseconds, under the following standard conditions: exactly 10Mb of free space is available and compacted, and the recent VM statistics are reset immediately before execution.
	testDecompiler Smalltalk testDecompiler
	testFormatter Smalltalk testFormatter
	testFormatter2 Smalltalk testFormatter2
	verifyChanges Smalltalk verifyChanges

	image, changes name	top
	changeImageNameTo:
	changesName Answer the local name for the changes file corresponding to the image file name.
	fullNameForChangesNamed:
	fullNameForImageNamed:
	imageName Answer the full path name for the current image.
	imageName: Set the the full path name for the current image. All further snapshots will use this.
	imagePath Answer the path for the directory containing the image file.
	sourcesName Answer the full path to the version-stable source code
	vmPath Answer the path for the directory containing the Smalltalk virtual machine. Return the empty string if this primitive is not implemented.

	memory space	top
	bytesLeft Answer the number of bytes of space available. Does a full garbage collection.
	bytesLeft: Return the amount of available space. If aBool is true, include possibly available swap space. If aBool is false, include possibly available physical memory. For a report on the largest free block currently availabe within Squeak memory but not counting extra memory use #primBytesLeft.
	bytesLeftString Return a string describing the amount of memory available
	createStackOverflow For testing the low space handler...
	garbageCollect Primitive. Reclaims all garbage and answers the number of bytes of available space.
	garbageCollectMost Primitive. Reclaims recently created garbage (which is usually most of it) fairly quickly and answers the number of bytes of available space.
	installLowSpaceWatcher Start a process to watch for low-space conditions.
	lowSpaceThreshold Return the low space threshold. When the amount of free memory (after garbage collection) falls below this limit, the system is in serious danger of completely exhausting memory and crashing. This limit should be made high enough to allow the user open a debugger to diagnose a problem or to save the image.
	lowSpaceWatcher Wait until the low space semaphore is signalled, then take appropriate actions.
	lowSpaceWatcherProcess
	memoryHogs Answer the list of objects to notify with #freeSomeSpace if memory gets full.
	okayToProceedEvenIfSpaceIsLow Return true if either there is enough memory to do so safely or if the user gives permission after being given fair warning.
	primBytesLeft Primitive. Answer the number of bytes available for new object data. Not accurate unless preceded by Smalltalk garbageCollectMost (for reasonable accuracy), or Smalltalk garbageCollect (for real accuracy). See Object documentation whatIsAPrimitive.
	primLowSpaceSemaphore: Primitive. Register the given Semaphore to be signalled when the number of free bytes drops below some threshold. Disable low-space interrupts if the argument is nil.
	primSignalAtBytesLeft: Tell the interpreter the low-space threshold in bytes. When the free space falls below this threshold, the interpreter will signal the low-space semaphore, if one has been registered. Disable low-space interrupts if the argument is zero. Fail if numBytes is not an Integer.
	primitiveGarbageCollect Primitive. Reclaims all garbage and answers the number of bytes of available space.
	signalLowSpace Signal the low-space semaphore to alert the user that space is running low.
	useUpMemory For testing the low space handler...
	useUpMemoryWithArrays For testing the low space handler...
	useUpMemoryWithContexts For testing the low space handler...
	useUpMemoryWithTinyObjects For testing the low space handler...

	miscellaneous	top
	beep Emit a short alert sound.
	compareTallyIn:to:
	disablePowerManager
	disablePowerManager: Disable/Enable the architectures power manager by passing in nonzero or zero
	enablePowerManager
	exitToDebugger Primitive. Enter the machine language debugger, if one exists. Essential. See Object documentation whatIsAPrimitive.
	extraVMMemory Answer the current setting of the 'extraVMMemory' VM parameter. See the comment in extraVMMemory: for details.
	extraVMMemory: Request that the given amount of extra memory be reserved for use by the virtual machine to leave extra C heap space available for things like plugins, network and file buffers, and so on. This request is stored when the image is saved and honored when the image is next started up. Answer the previous value of this parameter.
	forceDisplayUpdate Obsolete. Send this message to Display instead of Smalltalk.
	fullScreenMode: On platforms that support it, set full-screen mode to the value of the argument. (Note: you'll need to restore the Display after calling this primitive.
	getSystemAttribute: Optional. Answer the string for the system attribute with the given integer ID. Answer nil if the given attribute is not defined on this platform. On platforms that support invoking programs from command lines (e.g., Unix), this mechanism can be used to pass command line arguments to programs written in Squeak. By convention, the first command line argument that is not a VM configuration option is considered a 'document' to be filed in. Such a document can add methods and classes, can contain a serialized object, can include code to be executed, or any combination of these. Currently defined attributes include: -1000...-1 - command line arguments that specify VM options 0 - the full path name for currently executing VM (or, on some platforms, just the path name of the VM's directory) 1 - full path name of this image 2 - a Squeak document to open, if any 3...1000 - command line arguments for Squeak programs 1001 - this platform's operating system 1002 - operating system version 1003 - this platform's processor type 1004 - vm version
	getVMParameters Smalltalk getVMParameters
	gifReaderClass Answer, if present, a class to handle the importing of GIF files from disk. If none, return nil. 9/18/96 sw
	handleUserInterrupt
	hasMorphic Answer whether the Morphic classes are available in the system (they may have been stripped, such as by a call to Smalltalk removeMorphic
	imageImports Answer the global dictionary of image imports, creating it if necessary. 7/24/96 sw
	imageReaderClass Answer, if present, a class to handle the importing of various graphic image files from disk. If none, return nil. tao 10/26/97
	itsyVoltage On the Itsy, answer the approximate Vcc voltage. The Itsy will shut itself down when this value reaches 2.0 volts. This method allows one to build a readout of the current battery condition.
	jpegReaderClass Answer, if present, a class to handle the importing of JPEG files from disk. If none, return nil. 9/18/96 sw
	listBuiltinModule: Return the name of the n-th builtin module. This list is not sorted!
	listBuiltinModules Smalltalk listBuiltinModules
	listLoadedModule: Return the name of the n-th loaded module. This list is not sorted!
	listLoadedModules Smalltalk listLoadedModules
	logError:inContext:to: Log the error message and a stack trace to the given file.
	platformName Return the name of the platform we're running on
	setMacFileInfoOn: On Mac, set the file type and creator (noop on other platforms)
	spaceForInstancesOf: Answer the number of bytes consumed by all instances of the given class, including thier object headers.
	spaceTally Answer a collection of tuples representing the memory space (in bytes) consumed by the code and instances of each class in the system. The tuples have the form: <class> <code size> <instance count> <space for instances> Code sizes do not currently report memory consumed by class variables. The arrays used to record these results consume a relatively insignificant amount of space.
	spaceTallyTo:
	swapBytesIn:from:to: Perform a bigEndian/littleEndian byte reversal of my words. We only intend this for non-pointer arrays. Do nothing if I contain pointers.
	unloadModule: Primitive. Unload the given module. This primitive is intended for development only since some platform do not implement unloading of DLL's accordingly. Also, the mechanism for unloading may not be supported on all platforms.
	verifyMorphicAvailability If Morphic is available, return true; if not, put up an informer and return false
	viewImageImports Open up a special Form inspector on the dictionary of graphical imports.
	vmParameterAt: parameterIndex is a positive integer corresponding to one of the VM's internal parameter/metric registers. Answer with the current value of that register. Fail if parameterIndex has no corresponding register. VM parameters are numbered as follows: 1 end of old-space (0-based, read-only) 2 end of young-space (read-only) 3 end of memory (read-only) 4 allocationCount (read-only) 5 allocations between GCs (read-write) 6 survivor count tenuring threshold (read-write) 7 full GCs since startup (read-only) 8 total milliseconds in full GCs since startup (read-only) 9 incremental GCs since startup (read-only) 10 total milliseconds in incremental GCs since startup (read-only) 11 tenures of surving objects since startup (read-only) 12-20 specific to the translating VM 21 root table size (read-only) 22 root table overflows since startup (read-only) 23 bytes of extra memory to reserve for VM buffers, plugins, etc. 24 memory headroom when growing object memory (rw) 25 memory threshold above which shrinking object memory (rw)
	vmParameterAt:put: parameterIndex is a positive integer corresponding to one of the VM's internal parameter/metric registers. Store newValue (a positive integer) into that register and answer with the previous value that was stored there. Fail if newValue is out of range, if parameterIndex has no corresponding register, or if the corresponding register is read-only.
	vmVersion Smalltalk vmVersion

	objects from disk	top
	objectForDataStream: I am about to be written on an object file. Write a reference to Smalltalk instead.
	storeDataOn: I don't get stored. Use a DiskProxy

	printing	top
	printElementsOn:

	profiling	top
	clearProfile Clear the profile database.
	dumpProfile Dump the profile database to a file.
	profile: Make a virtual machine profile of the given block.
	startProfiling Start profiling the virtual machine.
	stopProfiling Stop profiling the virtual machine.

	retrieving	top
	allBehaviorsDo: Evaluate the argument, aBlock, for each kind of Behavior in the system (that is, Object and its subclasses). ar 7/15/1999: The code below will not enumerate any obsolete or anonymous behaviors for which the following should be executed: Smalltalk allObjectsDo:[:obj| obj isBehavior ifTrue:[aBlock value: obj]]. but what follows is way faster than enumerating all objects.
	allCallsOn: Smalltalk browseAllCallsOn: #open:label:.
	allCallsOn:and: Answer a SortedCollection of all the methods that call on both aLiteral and secondLiteral.
	allClasses Smalltalk allClasses
	allClassesDo: Evaluate the argument, aBlock, for each class in the system.
	allClassesImplementing: Answer an Array of all classes that implement the message aSelector.
	allGlobalRefs Answer a set of symbols that may be refs to Global names. In some sense we should only need the associations, but this will also catch, eg, HTML tag types.
	allGlobalRefsWithout: Answer a set of symbols that may be refs to Global names. In some sense we should only need the associations, but this will also catch, eg, HTML tag types. This method computes its result in the absence of specified classes and messages.
	allImplementedMessages Answer a Set of all the messages that are implemented in the system.
	allImplementedMessagesWithout: Answer a Set of all the messages that are implemented in the system, computed in the absence of the supplied classes and messages. Note this reports messages that are in the absent selectors set.
	allImplementorsOf: Answer a SortedCollection of all the methods that implement the message aSelector.
	allImplementorsOf:localTo: Answer a SortedCollection of all the methods that implement the message aSelector in, above, or below the given class.
	allMethodsInCategory:
	allMethodsWithSourceString:matchCase: Answer a SortedCollection of all the methods that contain, in source code, aString as a substring. Search the class comments also
	allMethodsWithString: Answer a SortedCollection of all the methods that contain, in a string literal, aString as a substring. 2/1/96 sw. The search is case-sensitive, and does not dive into complex literals, confining itself to string constants. 5/2/96 sw: fixed so that duplicate occurrences of aString in the same method don't result in duplicated entries in the browser
	allObjectsDo: Evaluate the argument, aBlock, for each object in the system excluding SmallIntegers.
	allObjectsSelect: Evaluate the argument, aBlock, for each object in the system excluding SmallIntegers. Return a collection af all objects for whom the value is true.
	allPrimitiveMessages Answer an OrderedCollection of all the methods that are implemented by primitives.
	allPrimitiveMethodsInCategories: Answer an OrderedCollection of all the methods that are implemented by primitives in the given categories. 1/26/96 sw
	allSelect: Answer a SortedCollection of each method that, when used as the block argument to aBlock, gives a true result.
	allSelectNoDoits: Like allSelect:, but strip out Doits
	allSentMessages Answer the set of selectors which are sent somewhere in the system.
	allSentMessagesWithout: Answer the set of selectors which are sent somewhere in the system, computed in the absence of the supplied classes and messages.
	allUnSentMessages Smalltalk allUnSentMessages
	allUnSentMessagesIn: Answer the subset of selectorSet which are not sent anywhere in the system.
	allUnSentMessagesWithout: Answer the set of selectors that are implemented but not sent, computed in the absence of the supplied classes and messages.
	allUnimplementedCalls Answer an Array of each message that is sent by an expression in a method but is not implemented by any object in the system.
	allUnusedClassesWithout: Enumerates all classes in the system and returns a list of those that are apparently unused. A class is considered in use if it (a) has subclasses or (b) is referred to by some method or (c) has its name in use as a literal.
	isThereAnImplementorOf: Answer true if there is at least one implementor of the selector found in the system, false if there are no implementors
	numberOfImplementorsOf: Answer a count of the implementors of the given selector found in the system
	pointersTo: Find all occurrences in the system of pointers to the argument anObject.
	pointersTo:except: Find all occurrences in the system of pointers to the argument anObject. Remove objects in the exclusion list from the results.
	pointersToItem:of: Find all occurrences in the system of pointers to the given element of the given array. This is useful for tracing up a pointer chain from an inspector on the results of a previous call of pointersTo:. To find out who points to the second element of the results, one would evaluate: Smalltalk pointersToItem: 2 of: self in the inspector.
	poolUsers Answer a dictionary of pool name -> classes that refer to it.
	selectorsWithAnyImplementorsIn: Answer the subset of the given list which represent method selectors which have at least one implementor in the system.
	unimplemented Answer an Array of each message that is sent by an expression in a method but is not implemented by any object in the system.

security

top

	shrinking	top
	abandonSources Smalltalk abandonSources
	abandonTempNames Replaces every method by a copy with no source pointer or encoded temp names.
	cleanUpUndoCommands Smalltalk cleanUpUndoCommands
	computeImageSegmentation Smalltalk computeImageSegmentation
	discard3D Smalltalk discard3D
	discardDiscards Discard all discard* methods - including this one.
	discardFFI Discard the complete foreign function interface. NOTE: Recreates specialObjectsArray to prevent obsolete references. Has to specially remove external structure hierarchy before ExternalType
	discardFlash Discard Flash support.
	discardIRC Smalltalk discardIRC
	discardMIDI this seems to have gone away
	discardMVC After suitable checks, strip out much of MVC from the system
	discardMorphic Discard Morphic. Updated for 2.8 TPR
	discardNetworking Discard the support for TCP/IP networking.
	discardOddsAndEnds This method throws out lots of classes that are not frequently used.
	discardPWS Smalltalk discardPWS
	discardPluggableWebServer Discard the Pluggable Web Server.
	discardSUnit Smalltalk discardSUnit
	discardSoundAndSpeech NOTE: This leaves 26 references to obsolete classes, one in SystemDictionary class>>initialize, one in ImageSegment>>restoreEndianness, one in DataStream class>>initialize and 23 in Morphic and Flash classes.
	discardSoundSynthesis Discard the sound synthesis facilities, and the methods and classes that use it. This also discards MIDI.
	discardSpeech Discard support for speech synthesis
	discardTrueType Discard TrueType support.
	discardVMConstruction Discard the virtual machine construction classes and the Smalltalk-to-C translator. These are only needed by those wishing to build or study the Squeak virtual machine, or by those wishing to construct new primitives via Smalltalk-to-C translation. Updated to suit 2.8 TPR
	discardWonderland Smalltalk discardWonderland
	fileOutAndRemove: classesAndMethodsPair is {set of class names. set of selectors}.
	fileOutAndRemove:retainingRoots: classesAndMethodsPair is {set of class names. set of selectors}.
	fileOutAndRemove:withOtherClasses:andOtherMessages: classesAndMethodsPair is {set of class names. set of selectors}.
	lastRemoval Smalltalk lastRemoval
	majorShrink Undertake a major shrinkage of the image. This method throws out lots of the system that is not needed for, eg, operation in a hand-held PC. majorShrink produces a 999k image in Squeak 2.8 Smalltalk majorShrink; abandonSources; lastRemoval
	presumedSentMessages Smalltalk presumedSentMessages
	printSpaceAnalysis Smalltalk printSpaceAnalysis
	printSpaceAnalysis:on: Smalltalk printSpaceAnalysis: 1000 on: 'STspace.text0'
	printSpaceDifferenceFrom:to: For differential results, run printSpaceAnalysis twice with different fileNames, then run this method... Smalltalk printSpaceAnalysis: 0 on: 'STspace.text1'. --- do something that uses space here --- Smalltalk printSpaceAnalysis: 0 on: 'STspace.text2'. Smalltalk printSpaceDifferenceFrom: 'STspace.text1' to: 'STspace.text2'
	removeAllUnSentMessages Smalltalk removeAllUnSentMessages
	removeNormalCruft Remove various graphics, uniclasses, references. Caution: see comment at bottom of method
	removeSelector: Safely remove a selector from a class (or metaclass). If the class or the method doesn't exist anymore, never mind and answer nil. This method should be used instead of 'Class removeSelector: #method' to omit global class references.
	reportClassAndMethodRemovalsFor: Smalltalk reportClassAndMethodRemovalsFor: #(Celeste Scamper MailMessage)
	unusedClasses Enumerates all classes in the system and returns a list of those that are apparently unused. A class is considered in use if it (a) has subclasses or (b) is referred to by some method or (c) has its name in use as a literal.
	unusedClassesAndMethodsWithout: Accepts and returns a pair: {set of class names. set of selectors}. It is expected these results will be diff'd with the normally unused results.
	writeImageSegmentsFrom:withKernel: segmentDictionary is associates segmentName -> {classNames. methodNames}, and kernel is another set of classNames determined to be essential. Add a partition, 'Secondary' with everything not in partitions and not in the kernel. Then write segments based on this partitioning of classes.
	zapAllOtherProjects Smalltalk zapAllOtherProjects
	zapMVCprojects Smalltalk zapMVCprojects

	snapshot and quit	top
	add:toList:after: Add the name of aClass to the startUp or shutDown list. Add it after the name of predecessor, or at the end if predecessor is nil.
	addToShutDownList: This will add a ref to this class at the BEGINNING of the shutDown list.
	addToShutDownList:after:
	addToStartUpList: This will add a ref to this class at the END of the startUp list.
	addToStartUpList:after:
	getFileNameFromUser
	isMorphic Answer true if the user interface is running in Morphic rathern than MVC. By convention the gloabl variable World is set to nil when MVC is running. ScheduledControllers could be set to nil when Morphic is running, but this symmetry is not yet in effect.
	lastQuitLogPosition
	processShutDownList: Send #shutDown to each class that needs to wrap up before a snapshot.
	processStartUpList: Send #startUp to each class that needs to run initialization after a snapshot.
	quitPrimitive Primitive. Exit to another operating system on the host machine, if one exists. All state changes in the object space since the last snapshot are lost. Essential. See Object documentation whatIsAPrimitive.
	readDocumentFile No longer used. Everything is now done in ProjectLauncher.
	removeFromShutDownList:
	removeFromStartUpList:
	saveAs
	saveAsEmbeddedImage Save the current state of the system as an embedded image
	saveAsNewVersion Save the image/changes using the next available version number.
	saveChangesInFileNamed:
	saveImageInFileNamed:
	saveImageSegments
	saveSession
	send:toClassesNamedIn:with: Send the message #startUp: or #shutDown: to each class named in the list. The argument indicates if the system is about to quit (for #shutDown:) or if the image is resuming (for #startUp:). If any name cannot be found, then remove it from the list.
	setGCParameters Adjust the VM's default GC parameters to avoid premature tenuring.
	setPlatformPreferences Set some platform specific preferences on system startup
	shutDown
	shutDownSound No longer used in the release, but retained for backward compatibility
	snapshot:andQuit:
	snapshot:andQuit:embedded: Mark the changes file and close all files. If save is true, save the current state of this Smalltalk in the image file. If quit is true, then exit to the outer shell. The latter part of this method runs when resuming a previously saved image. The resume logic checks for a document file to process when starting up.
	snapshotEmbeddedPrimitive
	snapshotPrimitive Primitive. Write the current state of the object memory on a file in the same format as the Smalltalk-80 release. The file can later be resumed, returning you to this exact state. Return normally after writing the file. Essential. See Object documentation whatIsAPrimitive.
	unbindExternalPrimitives Primitive. Force all external primitives to be looked up again afterwards. Since external primitives that have not found are bound for fast failure this method will force the lookup of all primitives again so that after adding some plugin the primitives may be found.

	sources, change log	top
	aboutThisSystem Identify software version
	assureStartupStampLogged If there is a startup stamp not yet actually logged to disk, do it now.
	changes Answer the current system ChangeSet.
	closeSourceFiles Shut down the source files if appropriate. 1/29/96 sw: changed so that the closing and nilification only take place if the entry was a FileStream, thus allowing stringified sources to remain in the saved image file
	copyright The Smalltalk copyright.
	currentChangeSetString Smalltalk currentChangeSetString
	currentProjectDo: So that code can work after removal of Projects
	datedVersion Answer the version of this release.
	endianness What endian-ness is the current hardware? The String '1234' will be stored into a machine word. On BigEndian machines (the Mac), $1 will be the high byte if the word. On LittleEndian machines (the PC), $4 will be the high byte.
	externalizeSources Write the sources and changes streams onto external files.
	forceChangesToDisk Ensure that the changes file has been fully written to disk by closing and re-opening it. This makes the system more robust in the face of a power failure or hard-reboot.
	internalizeChangeLog Smalltalk internalizeChangeLog
	internalizeSources Smalltalk internalizeSources
	isBigEndian
	isLittleEndian
	lastUpdateString Smalltalk lastUpdateString
	logChange: Write the argument, aString, onto the changes file.
	newChanges: Set the system ChangeSet to be the argument, aChangeSet. Tell the current project that aChangeSet is now its change set. When called from Project enter:, the setChangeSet: call is redundant but harmless; when called from code that changes the current-change-set from within a project, it's vital
	noChanges Initialize the system ChangeSet.
	openSourceFiles
	recover: Schedule an editable text view on the last n characters of changes.
	systemInformationString Identify software version
	timeStamp: Writes system version and current time on stream aStream.
	version Answer the version of this release.
	writeRecentCharacters:toFileNamed: Schedule an editable text view on the last n characters of changes.
	writeRecentToFile Smalltalk writeRecentToFile

	special objects	top
	clearExternalObjects Clear the array of objects that have been registered for use in non-Smalltalk code.
	compactClassesArray Smalltalk compactClassesArray
	externalObjects Return an array of objects that have been registered for use in non-Smalltalk code. Smalltalk objects should be referrenced by external code only via indirection through this array, thus allowing the objects to move during compaction. This array can be cleared when the VM re-starts, since variables in external code do not survive snapshots. Note that external code should not attempt to access a Smalltalk object, even via this mechanism, while garbage collection is in progress.
	hasSpecialSelector:ifTrueSetByte:
	recreateSpecialObjectsArray Smalltalk recreateSpecialObjectsArray
	registerExternalObject: Register the given object in the external objects array and return its index. If it is already there, just return its index.
	specialNargsAt: Answer the number of arguments for the special selector at: anInteger.
	specialObjectsArray Smalltalk specialObjectsArray at: 1
	specialSelectorAt: Answer the special message selector from the interleaved specialSelectors array.
	specialSelectorSize Answer the number of special selectors in the system.
	specialSelectors Used by SystemTracer only.
	unregisterExternalObject: Unregister the given object in the external objects array. Do nothing if it isn't registered.

	initialization	top
	initialize SystemDictionary initialize