Smalltalk current createPackage: 'Compiler' properties: #{}! Object subclass: #ChunkParser instanceVariableNames: 'stream' category: 'Compiler'! !ChunkParser methodsFor: 'accessing'! stream: aStream stream := aStream ! ! !ChunkParser methodsFor: 'reading'! nextChunk "The chunk format (Smalltalk Interchange Format or Fileout format) is a trivial format but can be a bit tricky to understand: - Uses the exclamation mark as delimiter of chunks. - Inside a chunk a normal exclamation mark must be doubled. - A non empty chunk must be a valid Smalltalk expression. - A chunk on top level with a preceding empty chunk is an instruction chunk: - The object created by the expression then takes over reading chunks. This metod returns next chunk as a String (trimmed), empty String (all whitespace) or nil." | char result chunk | result := '' writeStream. [char := stream next. char notNil] whileTrue: [ char = '!!' ifTrue: [ stream peek = '!!' ifTrue: [stream next "skipping the escape double"] ifFalse: [^result contents trimBoth "chunk end marker found"]]. result nextPut: char]. ^nil "a chunk needs to end with !!" ! ! !ChunkParser class methodsFor: 'not yet classified'! on: aStream ^self new stream: aStream ! ! Object subclass: #Importer instanceVariableNames: '' category: 'Compiler'! !Importer methodsFor: 'fileIn'! import: aStream | chunk result parser lastEmpty | parser := ChunkParser on: aStream. lastEmpty := false. [chunk := parser nextChunk. chunk isNil] whileFalse: [ chunk isEmpty ifTrue: [lastEmpty := true] ifFalse: [ result := Compiler new loadExpression: chunk. lastEmpty ifTrue: [ lastEmpty := false. result scanFrom: parser]]] ! ! Object subclass: #Exporter instanceVariableNames: '' category: 'Compiler'! !Exporter methodsFor: 'fileOut'! exportPackage: packageName "Export a given package by name." | package | ^String streamContents: [:stream | package := Smalltalk current packageAt: packageName. self exportPackageDefinitionOf: package on: stream. package classes do: [:each | stream nextPutAll: (self exportClass: each)]. self exportPackageExtensionsOf: package on: stream] ! exportAll "Export all packages in the system." ^String streamContents: [:stream | Smalltalk current packages do: [:pkg | stream nextPutAll: (self exportPackage: pkg name)]] ! exportClass: aClass "Export a single class. Subclasses override these methods." ^String streamContents: [:stream | self exportDefinitionOf: aClass on: stream. self exportMethodsOf: aClass on: stream. self exportMetaDefinitionOf: aClass on: stream. self exportMethodsOf: aClass class on: stream] ! ! !Exporter methodsFor: 'private'! exportDefinitionOf: aClass on: aStream aStream nextPutAll: 'smalltalk.addClass('; nextPutAll: '''', (self classNameFor: aClass), ''', '; nextPutAll: 'smalltalk.', (self classNameFor: aClass superclass); nextPutAll: ', ['. aClass instanceVariableNames do: [:each | aStream nextPutAll: '''', each, ''''] separatedBy: [aStream nextPutAll: ', ']. aStream nextPutAll: '], '''; nextPutAll: aClass category, ''''; nextPutAll: ');'. aClass comment notEmpty ifTrue: [ aStream lf; nextPutAll: 'smalltalk.'; nextPutAll: (self classNameFor: aClass); nextPutAll: '.comment='; nextPutAll: 'unescape(''', aClass comment escaped, ''')']. aStream lf ! exportMetaDefinitionOf: aClass on: aStream aClass class instanceVariableNames isEmpty ifFalse: [ aStream nextPutAll: 'smalltalk.', (self classNameFor: aClass class); nextPutAll: '.iVarNames = ['. aClass class instanceVariableNames do: [:each | aStream nextPutAll: '''', each, ''''] separatedBy: [aStream nextPutAll: ',']. aStream nextPutAll: '];', String lf] ! exportMethodsOf: aClass on: aStream aClass methodDictionary values do: [:each | (each category match: '^\*') ifFalse: [ self exportMethod: each of: aClass on: aStream]]. aStream lf ! classNameFor: aClass ^aClass isMetaclass ifTrue: [aClass instanceClass name, '.klass'] ifFalse: [ aClass isNil ifTrue: ['nil'] ifFalse: [aClass name]] ! exportMethod: aMethod of: aClass on: aStream aStream nextPutAll: 'smalltalk.addMethod(';lf; nextPutAll: 'unescape(''', aMethod selector asSelector escaped, '''),';lf; nextPutAll: 'smalltalk.method({';lf; nextPutAll: 'selector: unescape(''', aMethod selector escaped, '''),';lf; nextPutAll: 'category: ''', aMethod category, ''',';lf; nextPutAll: 'fn: ', aMethod fn compiledSource, ',';lf; nextPutAll: 'args: ', aMethod arguments asJavascript, ','; lf; nextPutAll: 'source: unescape(''', aMethod source escaped, '''),';lf; nextPutAll: 'messageSends: ', aMethod messageSends asJavascript, ',';lf; nextPutAll: 'referencedClasses: ', aMethod referencedClasses asJavascript. aStream lf; nextPutAll: '}),';lf; nextPutAll: 'smalltalk.', (self classNameFor: aClass); nextPutAll: ');';lf;lf ! exportPackageExtensionsOf: package on: aStream | name | name := package name. Smalltalk current classes, (Smalltalk current classes collect: [:each | each class]) do: [:each | each methodDictionary values do: [:method | method category = ('*', name) ifTrue: [ self exportMethod: method of: each on: aStream]]] ! exportPackageDefinitionOf: package on: aStream aStream nextPutAll: 'smalltalk.addPackage('; nextPutAll: '''', package name, ''', ', package propertiesAsJSON , ');'. aStream lf ! ! Exporter subclass: #ChunkExporter instanceVariableNames: '' category: 'Compiler'! !ChunkExporter methodsFor: 'not yet classified'! exportDefinitionOf: aClass on: aStream "Chunk format." aStream nextPutAll: (self classNameFor: aClass superclass); nextPutAll: ' subclass: #', (self classNameFor: aClass); lf; nextPutAll: ' instanceVariableNames: '''. aClass instanceVariableNames do: [:each | aStream nextPutAll: each] separatedBy: [aStream nextPutAll: ' ']. aStream nextPutAll: ''''; lf; nextPutAll: ' category: ''', aClass category, '''!!'; lf. aClass comment notEmpty ifTrue: [ aStream nextPutAll: '!!', (self classNameFor: aClass), ' commentStamp!!';lf; nextPutAll: (self chunkEscape: aClass comment), '!!';lf]. aStream lf ! exportMethod: aMethod of: aClass on: aStream aStream lf; lf; nextPutAll: (self chunkEscape: aMethod source); lf; nextPutAll: '!!' ! exportMethodsOf: aClass on: aStream aClass protocolsDo: [:category :methods | (category match: '^\*') ifFalse: [ self exportMethods: methods category: category of: aClass on: aStream]] ! exportMetaDefinitionOf: aClass on: aStream aClass class instanceVariableNames isEmpty ifFalse: [ aStream nextPutAll: (self classNameFor: aClass class); nextPutAll: ' instanceVariableNames: '''. aClass class instanceVariableNames do: [:each | aStream nextPutAll: each] separatedBy: [aStream nextPutAll: ' ']. aStream nextPutAll: '''!!'; lf; lf] ! classNameFor: aClass ^aClass isMetaclass ifTrue: [aClass instanceClass name, ' class'] ifFalse: [ aClass isNil ifTrue: ['nil'] ifFalse: [aClass name]] ! chunkEscape: aString "Replace all occurrences of !! with !!!! and trim at both ends." ^(aString replace: '!!' with: '!!!!') trimBoth ! exportMethods: methods category: category of: aClass on: aStream aStream nextPutAll: '!!', (self classNameFor: aClass); nextPutAll: ' methodsFor: ''', category, '''!!'. methods do: [:each | self exportMethod: each of: aClass on: aStream]. aStream nextPutAll: ' !!'; lf; lf ! exportPackageExtensionsOf: package on: aStream "We need to override this one too since we need to group all methods in a given protocol under a leading methodsFor: chunk for that class." | name | name := package name. Smalltalk current classes, (Smalltalk current classes collect: [:each | each class]) do: [:each | each protocolsDo: [:category :methods | category = ('*', name) ifTrue: [ self exportMethods: methods category: category of: each on: aStream]]] ! exportPackageDefinitionOf: package on: aStream "Chunk format." aStream nextPutAll: 'Smalltalk current createPackage: ''', package name, ''' properties: ', package properties storeString, '!!'; lf. ! ! Exporter subclass: #StrippedExporter instanceVariableNames: '' category: 'Compiler'! !StrippedExporter methodsFor: 'private'! exportDefinitionOf: aClass on: aStream aStream nextPutAll: 'smalltalk.addClass('; nextPutAll: '''', (self classNameFor: aClass), ''', '; nextPutAll: 'smalltalk.', (self classNameFor: aClass superclass); nextPutAll: ', ['. aClass instanceVariableNames do: [:each | aStream nextPutAll: '''', each, ''''] separatedBy: [aStream nextPutAll: ', ']. aStream nextPutAll: '], '''; nextPutAll: aClass category, ''''; nextPutAll: ');'. aStream lf ! exportMethod: aMethod of: aClass on: aStream aStream nextPutAll: 'smalltalk.addMethod(';lf; nextPutAll: '''', aMethod selector asSelector, ''',';lf; nextPutAll: 'smalltalk.method({';lf; nextPutAll: 'selector: ''', aMethod selector, ''',';lf; nextPutAll: 'fn: ', aMethod fn compiledSource;lf; nextPutAll: '}),';lf; nextPutAll: 'smalltalk.', (self classNameFor: aClass); nextPutAll: ');';lf;lf ! ! Object subclass: #Node instanceVariableNames: 'nodes' category: 'Compiler'! !Node methodsFor: 'accessing'! nodes ^nodes ifNil: [nodes := Array new] ! addNode: aNode self nodes add: aNode ! ! !Node methodsFor: 'building'! nodes: aCollection nodes := aCollection ! ! !Node methodsFor: 'testing'! isValueNode ^false ! isBlockNode ^false ! isBlockSequenceNode ^false ! ! !Node methodsFor: 'visiting'! accept: aVisitor aVisitor visitNode: self ! ! Node subclass: #MethodNode instanceVariableNames: 'selector arguments source' category: 'Compiler'! !MethodNode methodsFor: 'accessing'! selector ^selector ! selector: aString selector := aString ! arguments ^arguments ifNil: [#()] ! arguments: aCollection arguments := aCollection ! source ^source ! source: aString source := aString ! ! !MethodNode methodsFor: 'visiting'! accept: aVisitor aVisitor visitMethodNode: self ! ! Node subclass: #SendNode instanceVariableNames: 'selector arguments receiver' category: 'Compiler'! !SendNode methodsFor: 'accessing'! selector ^selector ! selector: aString selector := aString ! arguments ^arguments ifNil: [arguments := #()] ! arguments: aCollection arguments := aCollection ! receiver ^receiver ! receiver: aNode receiver := aNode ! valueForReceiver: anObject ^SendNode new receiver: (self receiver ifNil: [anObject] ifNotNil: [self receiver valueForReceiver: anObject]); selector: self selector; arguments: self arguments; yourself ! cascadeNodeWithMessages: aCollection | first | first := SendNode new selector: self selector; arguments: self arguments; yourself. ^CascadeNode new receiver: self receiver; nodes: (Array with: first), aCollection; yourself ! ! !SendNode methodsFor: 'visiting'! accept: aVisitor aVisitor visitSendNode: self ! ! Node subclass: #CascadeNode instanceVariableNames: 'receiver' category: 'Compiler'! !CascadeNode methodsFor: 'accessing'! receiver ^receiver ! receiver: aNode receiver := aNode ! ! !CascadeNode methodsFor: 'visiting'! accept: aVisitor aVisitor visitCascadeNode: self ! ! Node subclass: #AssignmentNode instanceVariableNames: 'left right' category: 'Compiler'! !AssignmentNode methodsFor: 'accessing'! left ^left ! left: aNode left := aNode. left assigned: true ! right ^right ! right: aNode right := aNode ! ! !AssignmentNode methodsFor: 'visiting'! accept: aVisitor aVisitor visitAssignmentNode: self ! ! Node subclass: #BlockNode instanceVariableNames: 'parameters inlined' category: 'Compiler'! !BlockNode methodsFor: 'accessing'! parameters ^parameters ifNil: [parameters := Array new] ! parameters: aCollection parameters := aCollection ! inlined ^inlined ifNil: [false] ! inlined: aBoolean inlined := aBoolean ! ! !BlockNode methodsFor: 'testing'! isBlockNode ^true ! ! !BlockNode methodsFor: 'visiting'! accept: aVisitor aVisitor visitBlockNode: self ! ! Node subclass: #SequenceNode instanceVariableNames: 'temps' category: 'Compiler'! !SequenceNode methodsFor: 'accessing'! temps ^temps ifNil: [#()] ! temps: aCollection temps := aCollection ! ! !SequenceNode methodsFor: 'testing'! asBlockSequenceNode ^BlockSequenceNode new nodes: self nodes; temps: self temps; yourself ! ! !SequenceNode methodsFor: 'visiting'! accept: aVisitor aVisitor visitSequenceNode: self ! ! SequenceNode subclass: #BlockSequenceNode instanceVariableNames: '' category: 'Compiler'! !BlockSequenceNode methodsFor: 'testing'! isBlockSequenceNode ^true ! ! !BlockSequenceNode methodsFor: 'visiting'! accept: aVisitor aVisitor visitBlockSequenceNode: self ! ! Node subclass: #ReturnNode instanceVariableNames: '' category: 'Compiler'! !ReturnNode methodsFor: 'visiting'! accept: aVisitor aVisitor visitReturnNode: self ! ! Node subclass: #ValueNode instanceVariableNames: 'value' category: 'Compiler'! !ValueNode methodsFor: 'accessing'! value ^value ! value: anObject value := anObject ! ! !ValueNode methodsFor: 'testing'! isValueNode ^true ! ! !ValueNode methodsFor: 'visiting'! accept: aVisitor aVisitor visitValueNode: self ! ! ValueNode subclass: #VariableNode instanceVariableNames: 'assigned' category: 'Compiler'! !VariableNode methodsFor: 'accessing'! assigned ^assigned ifNil: [false] ! assigned: aBoolean assigned := aBoolean ! ! !VariableNode methodsFor: 'visiting'! accept: aVisitor aVisitor visitVariableNode: self ! ! VariableNode subclass: #ClassReferenceNode instanceVariableNames: '' category: 'Compiler'! !ClassReferenceNode methodsFor: 'visiting'! accept: aVisitor aVisitor visitClassReferenceNode: self ! ! Node subclass: #JSStatementNode instanceVariableNames: 'source' category: 'Compiler'! !JSStatementNode methodsFor: 'accessing'! source ^source ifNil: [''] ! source: aString source := aString ! ! !JSStatementNode methodsFor: 'visiting'! accept: aVisitor aVisitor visitJSStatementNode: self ! ! Object subclass: #NodeVisitor instanceVariableNames: '' category: 'Compiler'! !NodeVisitor methodsFor: 'visiting'! visit: aNode aNode accept: self ! visitNode: aNode ! visitMethodNode: aNode self visitNode: aNode ! visitSequenceNode: aNode self visitNode: aNode ! visitBlockSequenceNode: aNode self visitSequenceNode: aNode ! visitBlockNode: aNode self visitNode: aNode ! visitReturnNode: aNode self visitNode: aNode ! visitSendNode: aNode self visitNode: aNode ! visitCascadeNode: aNode self visitNode: aNode ! visitValueNode: aNode self visitNode: aNode ! visitVariableNode: aNode ! visitAssignmentNode: aNode self visitNode: aNode ! visitClassReferenceNode: aNode self nextPutAll: 'smalltalk.'; nextPutAll: aNode value ! visitJSStatementNode: aNode self nextPutAll: 'function(){'; nextPutAll: aNode source; nextPutAll: '})()' ! visitDynamicArrayNode: aNode self visitNode: aNode ! visitDynamicDictionaryNode: aNode self visitNode: aNode ! ! NodeVisitor subclass: #Compiler instanceVariableNames: 'stream nestedBlocks earlyReturn currentClass currentSelector unknownVariables tempVariables messageSends referencedClasses classReferenced source argVariables' category: 'Compiler'! !Compiler methodsFor: 'accessing'! parser ^SmalltalkParser new ! currentClass ^currentClass ! currentClass: aClass currentClass := aClass ! unknownVariables ^unknownVariables copy ! pseudoVariables ^#('self' 'super' 'true' 'false' 'nil' 'thisContext') ! tempVariables ^tempVariables copy ! knownVariables ^self pseudoVariables addAll: self tempVariables; addAll: self argVariables; yourself ! classNameFor: aClass ^aClass isMetaclass ifTrue: [aClass instanceClass name, '.klass'] ifFalse: [ aClass isNil ifTrue: ['nil'] ifFalse: [aClass name]] ! source ^source ifNil: [''] ! source: aString source := aString ! argVariables ^argVariables copy ! safeVariableNameFor: aString ^(Smalltalk current reservedWords includes: aString) ifTrue: [aString, '_'] ifFalse: [aString] ! ! !Compiler methodsFor: 'compiling'! loadExpression: aString | result | DoIt addCompiledMethod: (self eval: (self compileExpression: aString)). result := DoIt new doIt. DoIt removeCompiledMethod: (DoIt methodDictionary at: #doIt). ^result ! load: aString forClass: aClass | compiled | compiled := self eval: (self compile: aString forClass: aClass). self setupClass: aClass. ^compiled ! compile: aString forClass: aClass self currentClass: aClass. self source: aString. ^self compile: aString ! compileExpression: aString self currentClass: DoIt. self source: 'doIt ^[', aString, '] value'. ^self compileNode: (self parse: self source) ! eval: aString ! compile: aString ^self compileNode: (self parse: aString) ! compileNode: aNode stream := '' writeStream. self visit: aNode. ^stream contents ! parse: aString ^Smalltalk current parse: aString ! parseExpression: aString ^self parse: 'doIt ^[', aString, '] value' ! recompile: aClass aClass methodDictionary do: [:each || method | method := self load: each source forClass: aClass. method category: each category. aClass addCompiledMethod: method]. aClass isMetaclass ifFalse: [self recompile: aClass class] ! recompileAll Smalltalk current classes do: [:each | Transcript show: each; cr. [self recompile: each] valueWithTimeout: 100] ! setupClass: aClass ! ! !Compiler methodsFor: 'initialization'! initialize super initialize. stream := '' writeStream. unknownVariables := #(). tempVariables := #(). argVariables := #(). messageSends := #(). classReferenced := #() ! ! !Compiler methodsFor: 'optimizations'! checkClass: aClassName for: receiver stream nextPutAll: '((($receiver = ', receiver, ').klass === smalltalk.', aClassName, ') ? ' ! inlineLiteral: aSelector receiverNode: anObject argumentNodes: aCollection | inlined | inlined := false. "-- BlockClosures --" (aSelector = 'whileTrue:') ifTrue: [ (anObject isBlockNode and: [aCollection first isBlockNode]) ifTrue: [ stream nextPutAll: '(function(){while('. self visit: anObject. stream nextPutAll: '()) {'. self visit: aCollection first. stream nextPutAll: '()}})()'. inlined := true]]. (aSelector = 'whileFalse:') ifTrue: [ (anObject isBlockNode and: [aCollection first isBlockNode]) ifTrue: [ stream nextPutAll: '(function(){while(!!'. self visit: anObject. stream nextPutAll: '()) {'. self visit: aCollection first. stream nextPutAll: '()}})()'. inlined := true]]. (aSelector = 'whileTrue') ifTrue: [ anObject isBlockNode ifTrue: [ stream nextPutAll: '(function(){while('. self visit: anObject. stream nextPutAll: '()) {}})()'. inlined := true]]. (aSelector = 'whileFalse') ifTrue: [ anObject isBlockNode ifTrue: [ stream nextPutAll: '(function(){while(!!'. self visit: anObject. stream nextPutAll: '()) {}})()'. inlined := true]]. "-- Numbers --" (aSelector = '+') ifTrue: [ (self isNode: anObject ofClass: Number) ifTrue: [ self visit: anObject. stream nextPutAll: ' + '. self visit: aCollection first. inlined := true]]. (aSelector = '-') ifTrue: [ (self isNode: anObject ofClass: Number) ifTrue: [ self visit: anObject. stream nextPutAll: ' - '. self visit: aCollection first. inlined := true]]. (aSelector = '*') ifTrue: [ (self isNode: anObject ofClass: Number) ifTrue: [ self visit: anObject. stream nextPutAll: ' * '. self visit: aCollection first. inlined := true]]. (aSelector = '/') ifTrue: [ (self isNode: anObject ofClass: Number) ifTrue: [ self visit: anObject. stream nextPutAll: ' / '. self visit: aCollection first. inlined := true]]. (aSelector = '<') ifTrue: [ (self isNode: anObject ofClass: Number) ifTrue: [ self visit: anObject. stream nextPutAll: ' < '. self visit: aCollection first. inlined := true]]. (aSelector = '<=') ifTrue: [ (self isNode: anObject ofClass: Number) ifTrue: [ self visit: anObject. stream nextPutAll: ' <= '. self visit: aCollection first. inlined := true]]. (aSelector = '>') ifTrue: [ (self isNode: anObject ofClass: Number) ifTrue: [ self visit: anObject. stream nextPutAll: ' > '. self visit: aCollection first. inlined := true]]. (aSelector = '>=') ifTrue: [ (self isNode: anObject ofClass: Number) ifTrue: [ self visit: anObject. stream nextPutAll: ' >= '. self visit: aCollection first. inlined := true]]. "-- UndefinedObject --" (aSelector = 'ifNil:') ifTrue: [ aCollection first isBlockNode ifTrue: [ stream nextPutAll: '(($receiver = '. self visit: anObject. stream nextPutAll: ') == nil || $receiver == undefined) ? '. self visit: aCollection first. stream nextPutAll: '() : $receiver'. inlined := true]]. (aSelector = 'ifNotNil:') ifTrue: [ aCollection first isBlockNode ifTrue: [ stream nextPutAll: '(($receiver = '. self visit: anObject. stream nextPutAll: ') !!= nil && $receiver !!= undefined) ? '. self visit: aCollection first. stream nextPutAll: '() : nil'. inlined := true]]. (aSelector = 'ifNil:ifNotNil:') ifTrue: [ (aCollection first isBlockNode and: [aCollection second isBlockNode]) ifTrue: [ stream nextPutAll: '(($receiver = '. self visit: anObject. stream nextPutAll: ') == nil || $receiver == undefined) ? '. self visit: aCollection first. stream nextPutAll: '() : '. self visit: aCollection second. stream nextPutAll: '()'. inlined := true]]. (aSelector = 'ifNotNil:ifNil:') ifTrue: [ (aCollection first isBlockNode and: [aCollection second isBlockNode]) ifTrue: [ stream nextPutAll: '(($receiver = '. self visit: anObject. stream nextPutAll: ') == nil || $receiver == undefined) ? '. self visit: aCollection second. stream nextPutAll: '() : '. self visit: aCollection first. stream nextPutAll: '()'. inlined := true]]. ^inlined ! isNode: aNode ofClass: aClass ^aNode isValueNode and: [ aNode value class = aClass or: [ aNode value = 'self' and: [self currentClass = aClass]]] ! inline: aSelector receiver: receiver argumentNodes: aCollection | inlined | inlined := false. "-- Booleans --" (aSelector = 'ifFalse:') ifTrue: [ aCollection first isBlockNode ifTrue: [ self checkClass: 'Boolean' for: receiver. stream nextPutAll: '(!! $receiver ? '. self visit: aCollection first. stream nextPutAll: '() : nil)'. inlined := true]]. (aSelector = 'ifTrue:') ifTrue: [ aCollection first isBlockNode ifTrue: [ self checkClass: 'Boolean' for: receiver. stream nextPutAll: '($receiver ? '. self visit: aCollection first. stream nextPutAll: '() : nil)'. inlined := true]]. (aSelector = 'ifTrue:ifFalse:') ifTrue: [ (aCollection first isBlockNode and: [aCollection second isBlockNode]) ifTrue: [ self checkClass: 'Boolean' for: receiver. stream nextPutAll: '($receiver ? '. self visit: aCollection first. stream nextPutAll: '() : '. self visit: aCollection second. stream nextPutAll: '())'. inlined := true]]. (aSelector = 'ifFalse:ifTrue:') ifTrue: [ (aCollection first isBlockNode and: [aCollection second isBlockNode]) ifTrue: [ self checkClass: 'Boolean' for: receiver. stream nextPutAll: '(!! $receiver ? '. self visit: aCollection first. stream nextPutAll: '() : '. self visit: aCollection second. stream nextPutAll: '())'. inlined := true]]. "-- Numbers --" (aSelector = '<') ifTrue: [ self checkClass: 'Number' for: receiver. stream nextPutAll: '$receiver <'. self visit: aCollection first. inlined := true]. (aSelector = '<=') ifTrue: [ self checkClass: 'Number' for: receiver. stream nextPutAll: '$receiver <='. self visit: aCollection first. inlined := true]. (aSelector = '>') ifTrue: [ self checkClass: 'Number' for: receiver. stream nextPutAll: '$receiver >'. self visit: aCollection first. inlined := true]. (aSelector = '>=') ifTrue: [ self checkClass: 'Number' for: receiver. stream nextPutAll: '$receiver >='. self visit: aCollection first. inlined := true]. (aSelector = '+') ifTrue: [ self checkClass: 'Number' for: receiver. stream nextPutAll: '$receiver +'. self visit: aCollection first. inlined := true]. (aSelector = '-') ifTrue: [ self checkClass: 'Number' for: receiver. stream nextPutAll: '$receiver -'. self visit: aCollection first. inlined := true]. (aSelector = '*') ifTrue: [ self checkClass: 'Number' for: receiver. stream nextPutAll: '$receiver *'. self visit: aCollection first. inlined := true]. (aSelector = '/') ifTrue: [ self checkClass: 'Number' for: receiver. stream nextPutAll: '$receiver /'. self visit: aCollection first. inlined := true]. ^inlined ! ! !Compiler methodsFor: 'testing'! performOptimizations ^self class performOptimizations ! ! !Compiler methodsFor: 'visiting'! visit: aNode aNode accept: self ! visitMethodNode: aNode | str currentSelector | currentSelector := aNode selector asSelector. nestedBlocks := 0. earlyReturn := false. messageSends := #(). referencedClasses := #(). unknownVariables := #(). tempVariables := #(). argVariables := #(). stream nextPutAll: 'smalltalk.method({'; lf; nextPutAll: 'selector: "', aNode selector, '",'; lf. stream nextPutAll: 'source: unescape("', self source escaped, '"),';lf. stream nextPutAll: 'fn: function('. aNode arguments do: [:each | argVariables add: each. stream nextPutAll: each] separatedBy: [stream nextPutAll: ', ']. stream nextPutAll: '){'; lf; nextPutAll: 'var self=this;'; lf. str := stream. stream := '' writeStream. aNode nodes do: [:each | self visit: each]. earlyReturn ifTrue: [ str nextPutAll: 'try{']. str nextPutAll: stream contents. stream := str. stream lf; nextPutAll: 'return self;'. earlyReturn ifTrue: [ stream lf; nextPutAll: '} catch(e) {if(e.name === ''stReturn'' && e.selector === ', currentSelector printString, '){return e.fn()} throw(e)}']. stream nextPutAll: '}'. stream nextPutAll: ',', String lf, 'messageSends: '; nextPutAll: messageSends asJavascript, ','; lf; nextPutAll: 'args: ', argVariables asJavascript, ','; lf; nextPutAll: 'referencedClasses: ['. referencedClasses do: [:each | stream nextPutAll: each printString] separatedBy: [stream nextPutAll: ',']. stream nextPutAll: ']'. stream nextPutAll: '})' ! visitBlockNode: aNode stream nextPutAll: '(function('. aNode parameters do: [:each | tempVariables add: each. stream nextPutAll: each] separatedBy: [stream nextPutAll: ', ']. stream nextPutAll: '){'. aNode nodes do: [:each | self visit: each]. stream nextPutAll: '})' ! visitSequenceNode: aNode aNode temps do: [:each || temp | temp := self safeVariableNameFor: each. tempVariables add: temp. stream nextPutAll: 'var ', temp, '=nil;'; lf]. aNode nodes do: [:each | self visit: each. stream nextPutAll: ';'] separatedBy: [stream lf] ! visitBlockSequenceNode: aNode | index | nestedBlocks := nestedBlocks + 1. aNode nodes isEmpty ifTrue: [ stream nextPutAll: 'return nil;'] ifFalse: [ aNode temps do: [:each | | temp | temp := self safeVariableNameFor: each. tempVariables add: temp. stream nextPutAll: 'var ', temp, '=nil;'; lf]. index := 0. aNode nodes do: [:each | index := index + 1. index = aNode nodes size ifTrue: [ stream nextPutAll: 'return ']. self visit: each. stream nextPutAll: ';']]. nestedBlocks := nestedBlocks - 1 ! visitReturnNode: aNode nestedBlocks > 0 ifTrue: [ earlyReturn := true]. earlyReturn ifTrue: [ stream nextPutAll: '(function(){throw('; nextPutAll: '{name: ''stReturn'', selector: '; nextPutAll: currentSelector printString; nextPutAll: ', fn: function(){return '] ifFalse: [stream nextPutAll: 'return ']. aNode nodes do: [:each | self visit: each]. earlyReturn ifTrue: [ stream nextPutAll: '}})})()'] ! visitSendNode: aNode | str receiver superSend inlined | str := stream. (messageSends includes: aNode selector) ifFalse: [ messageSends add: aNode selector]. stream := '' writeStream. self visit: aNode receiver. superSend := stream contents = 'super'. receiver := superSend ifTrue: ['self'] ifFalse: [stream contents]. stream := str. self performOptimizations ifTrue: [ (self inlineLiteral: aNode selector receiverNode: aNode receiver argumentNodes: aNode arguments) ifFalse: [ (self inline: aNode selector receiver: receiver argumentNodes: aNode arguments) ifTrue: [stream nextPutAll: ' : ', (self send: aNode selector to: '$receiver' arguments: aNode arguments superSend: superSend), ')'] ifFalse: [stream nextPutAll: (self send: aNode selector to: receiver arguments: aNode arguments superSend: superSend)]]] ifFalse: [stream nextPutAll: (self send: aNode selector to: receiver arguments: aNode arguments superSend: superSend)] ! visitCascadeNode: aNode | index | index := 0. (tempVariables includes: '$rec') ifFalse: [ tempVariables add: '$rec']. stream nextPutAll: '(function($rec){'. aNode nodes do: [:each | index := index + 1. index = aNode nodes size ifTrue: [ stream nextPutAll: 'return ']. each receiver: (VariableNode new value: '$rec'). self visit: each. stream nextPutAll: ';']. stream nextPutAll: '})('. self visit: aNode receiver. stream nextPutAll: ')' ! visitValueNode: aNode stream nextPutAll: aNode value asJavascript ! visitAssignmentNode: aNode self visit: aNode left. stream nextPutAll: '='. self visit: aNode right ! visitClassReferenceNode: aNode (referencedClasses includes: aNode value) ifFalse: [ referencedClasses add: aNode value]. stream nextPutAll: '(smalltalk.', aNode value, ' || ', aNode value, ')' ! visitVariableNode: aNode | varName | (self currentClass allInstanceVariableNames includes: aNode value) ifTrue: [stream nextPutAll: 'self[''@', aNode value, ''']'] ifFalse: [ varName := self safeVariableNameFor: aNode value. (self knownVariables includes: varName) ifFalse: [ unknownVariables add: aNode value. aNode assigned ifTrue: [stream nextPutAll: varName] ifFalse: [stream nextPutAll: '(typeof ', varName, ' == ''undefined'' ? nil : ', varName, ')']] ifTrue: [ aNode value = 'thisContext' ifTrue: [stream nextPutAll: '(smalltalk.getThisContext())'] ifFalse: [stream nextPutAll: varName]]] ! visitJSStatementNode: aNode stream nextPutAll: (aNode source replace: '>>' with: '>') ! visitFailure: aFailure self error: aFailure asString ! send: aSelector to: aReceiver arguments: aCollection superSend: aBoolean ^String streamContents: [:str || tmp | tmp := stream. str nextPutAll: 'smalltalk.send('. str nextPutAll: aReceiver. str nextPutAll: ', "', aSelector asSelector, '", ['. stream := str. aCollection do: [:each | self visit: each] separatedBy: [stream nextPutAll: ', ']. stream := tmp. str nextPutAll: ']'. aBoolean ifTrue: [ str nextPutAll: ', smalltalk.', (self classNameFor: self currentClass superclass)]. str nextPutAll: ')'] ! visitDynamicArrayNode: aNode stream nextPutAll: '['. aNode nodes do: [:each | self visit: each] separatedBy: [stream nextPutAll: ',']. stream nextPutAll: ']' ! visitDynamicDictionaryNode: aNode stream nextPutAll: 'smalltalk.Dictionary._fromPairs_(['. aNode nodes do: [:each | self visit: each] separatedBy: [stream nextPutAll: ',']. stream nextPutAll: '])' ! ! Compiler class instanceVariableNames: 'performOptimizations'! !Compiler class methodsFor: 'accessing'! performOptimizations ^performOptimizations ifNil: [true] ! performOptimizations: aBoolean performOptimizations := aBoolean ! ! !Compiler class methodsFor: 'compiling'! recompile: aClass aClass methodDictionary do: [:each || method | method := self new load: each source forClass: aClass. method category: each category. aClass addCompiledMethod: method]. aClass isMetaclass ifFalse: [self recompile: aClass class] ! recompileAll Smalltalk current classes do: [:each | self recompile: each] ! ! Object subclass: #DoIt instanceVariableNames: '' category: 'Compiler'! Node subclass: #DynamicArrayNode instanceVariableNames: '' category: 'Compiler'! !DynamicArrayNode methodsFor: 'visiting'! accept: aVisitor aVisitor visitDynamicArrayNode: self ! ! Node subclass: #DynamicDictionaryNode instanceVariableNames: '' category: 'Compiler'! !DynamicDictionaryNode methodsFor: 'visiting'! accept: aVisitor aVisitor visitDynamicDictionaryNode: self ! !