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Text File | 1992-02-15 | 16KB | 996 lines

"Smalltalk built in methods. These are read in by the system initially, to prepare the execution environment." "====================================================================== | | Copyright (C) 1990, 1991, 1992 Free Software Foundation, Inc. | Written by Steve Byrne. | | This file is part of GNU Smalltalk. | | GNU Smalltalk is free software; you can redistribute it and/or modify it | under the terms of the GNU General Public License as published by the Free | Software Foundation; either version 1, or (at your option) any later version. | | GNU Smalltalk 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 General Public License for more | details. | | You should have received a copy of the GNU General Public License along with | GNU Smalltalk; see the file COPYING. If not, write to the Free Software | Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | ======================================================================" " | Change Log | ============================================================================ | Author Date Change | sbb 28 Nov 91 Added SystemDictionary byteCodeCounter. | | sbb 2 Nov 91 Fixed == and ~~ definitions for Integer to fail if | the integers aren't = (including the case where they | aren't both integers). Used to retry:coercing: which | lost badly. | | sbb 20 Oct 91 Added support for user level control of GC growth | rate flags. | | sbb 22 Sep 91 Switched FileStream to returning nil on failure, so | that higher level methods can chose to deal with | failure. This was due to a brilliant observation by | Michael Richardson. Now that higher level functions | can handle failure, things like search paths, etc, | can be trivially implemented. | | sbb 5 Jul 91 added fileInLine:fileName:at: to improve error | reporting and recording of file position information | for later browsing. | | sbb 6 Jun 91 Switched declare and execution tracing from being | direct primitives to a more general primitive | mechanism. | | sbb 23 Mar 91 Added Integer primitives == and ~~ for more | efficient operation. | | sbb 3 Aug 90 Added definition of CObject class alloc:. | | sbyrne 20 Apr 90 Added SystemDictionary debug to help out with | DBX level debugging. | | sbyrne 15 Apr 90 Added sqrt primitive (I'm sure this was here before) | must have got lost during breaking out from builtins. | | sbyrne 7 Apr 90 Added declare tracing primitive. | | sbyrne 13 Jan 90 Experimental Class self-definition. | | sbyrne 19 Dec 89 Added filein primitive. | | sbyrne 12 Aug 89 Added process and semaphore builtins. | | sbyrne 6 Feb 89 Created. | " !Integer methodsFor: 'built ins'! + arg <primitive: 1> ^self retry: #+ coercing: arg ! - arg <primitive: 2> ^self retry: #- coercing: arg ! < arg <primitive: 3> ^self retry: #< coercing: arg ! > arg <primitive: 4> ^self retry: #> coercing: arg ! <= arg <primitive: 5> ^self retry: #<= coercing: arg ! >= arg <primitive: 6> ^self retry: #>= coercing: arg ! = arg <primitive: 7> ^self retry: #= coercing: arg ! == arg <primitive: 7> "if they aren't = by the primitive, they're not ==" ^false ! ~= arg <primitive: 8> ^self retry: #~= coercing: arg ! ~~ arg <primitive: 8> ^false "see comment above for ==" ! * arg <primitive: 9> ^self retry: #* coercing: arg ! / arg <primitive: 10> " Create a Fraction when it's appropriate " ^self retry: #/ coercing: arg ! \\ arg <primitive: 11> ^self retry: #\\ coercing: arg ! // arg <primitive: 12> ^self retry: #// coercing: arg ! quo: arg <primitive: 13> ^self retry: #quo: coercing: arg ! bitAnd: arg <primitive: 14> ! bitOr: arg <primitive: 15> ! bitXor: arg <primitive: 16> ! bitShift: arg <primitive: 17> ! asFloat <primitive: 40> ! asObject <primitive: 76> self primitiveFailed ! asObjectNoFail <primitive: 76> !! !Float methodsFor: 'built ins'! + arg <primitive: 41> ^self retry: #+ coercing: arg ! - arg <primitive: 42> ^self retry: #- coercing: arg ! < arg <primitive: 43> ^self retry: #< coercing: arg ! > arg <primitive: 44> ^self retry: #> coercing: arg ! <= arg <primitive: 45> ^self retry: #<= coercing: arg ! >= arg <primitive: 46> ^self retry: #>= coercing: arg ! = arg <primitive: 47> ^self retry: #= coercing: arg ! ~= arg <primitive: 48> ^self retry: #~= coercing: arg ! * arg <primitive: 49> ^self retry: #* coercing: arg ! / arg <primitive: 50> ^self retry: #/ coercing: arg ! truncated <primitive: 51> ! fractionPart <primitive: 52> ! exponent <primitive: 53> ! timesTwoPower: arg <primitive: 54> ! exp <primitive: 160> ! ln <primitive: 161> ! raisedTo: aNumber <primitive: 164> ^self retry: #raisedTo: coercing: aNumber ! sqrt <primitive: 166> ^self error: 'Primitive Sqrt failed!!!' ! ceiling <primitive: 168> ! floor <primitive: 169> ! sin <primitive: 176> ! cos <primitive: 177> ! tan <primitive: 178> ! arcSin <primitive: 179> ! arcCos <primitive: 180> ! arcTan <primitive: 181> !! !Object methodsFor: 'built ins'! at: index <primitive: 60> ! basicAt: index <primitive: 60> ! at: index put: value <primitive: 61> ! basicAt: index put: value <primitive: 61> ! size <primitive: 62> ! basicSize <primitive: 62> ! become: otherObject <primitive: 72> ! instVarAt: index <primitive: 73> ^self primitiveFailed ! instVarAt: index put: value <primitive: 74> ^self primitiveFailed ! asOop <primitive: 75> ! hash <primitive: 75> ! nextInstance <primitive: 78> ^nil ! perform: selector <primitive: 83> ! perform: selector with: arg1 <primitive: 83> ! perform: selector with: arg1 with: arg2 <primitive: 83> ! perform: selector with: arg1 with: arg2 with: arg3 <primitive: 83> ! perform: selector withArguments: argumentsArray <primitive: 84> ! == arg <primitive: 110> ! = arg "The equality test is by default the same as that for equal objects" <primitive: 110> ! class <primitive: 111> self primitiveFailed ! doesNotUnderstand: message <primitive: 130> ! error: message <primitive: 131> ! basicPrint <primitive: 252> ! "### look these messages up to be sure" primitiveFailed self error: 'primitive operation failed' ! shouldNotImplement self error: 'should not implement' ! subclassResponsibility self error: 'the method is the responsibility of the subclass' ! notYetImplemented self error: 'not yet implemented' !! !SystemDictionary methodsFor: 'builtins'! quitPrimitive <primitive: 113> self primitiveFailed ! quitPrimitive: exitStatus <primitive: 117> ^self error: 'Integer expected, not ', exitStatus printString ! monitor: aBoolean <primitive: 230> self primitiveFailed ! backtrace "Prints the method invocation stack backtrace, as an aid to debugging" <primitive: 140> self primitiveFailed ! getTraceFlag: anIndex "Returns a boolean value which is one of the interpreter's tracing flags" <primitive: 141> self primitiveFailed ! setTraceFlag: anIndex to: aBoolean "Sets the value of one of the interpreter's tracing flags (indicated by 'anIndex') to the value aBoolean." <primitive: 142> self primitiveFailed ! spaceGrowRate <primitive: 153> ^self primitiveFailed ! spaceGrowRate: rate <primitive: 154> ^self primitiveFailed ! growThresholdPercent <primitive: 155> ^self primitiveFailed ! growThresholdPercent: growPercent <primitive: 156> ^self primitiveFailed ! byteCodeCounter <primitive: 231> ! snapshot <primitive: 250> ! snapshot: aString <primitive: 251> ! debug "for DBX. Set breakpoint in debug() and invoke this primitive near where you want to stop" <primitive: 232> ! "========================================================================== These are so useful throughout the loading of the kernel methods that I make an exception here and put in real methods instead of just primitives. " executionTrace ^self getTraceFlag: 1 ! executionTrace: aBoolean ^self setTraceFlag: 1 to: aBoolean ! declarationTrace ^self getTraceFlag: 0 ! declarationTrace: aBoolean ^self setTraceFlag: 0 to: aBoolean ! verboseTrace ^self getTraceFlag: 2 ! verboseTrace: aBoolean ^self setTraceFlag: 2 to: aBoolean ! gcMessage ^self getTraceFlag: 3 ! gcMessage: aBoolean ^self setTraceFlag: 3 to: aBoolean !! !Behavior methodsFor: 'built ins'! new <primitive: 70> ! basicNew <primitive: 70> ! new: numInstanceVariables <primitive: 71> ! basicNew: numInstanceVariables <primitive: 71> ! someInstance <primitive: 77> ^nil "return nil on failure" ! methodsFor: category ifTrue: condition <primitive: 151> ^self primitiveFailed ! makeDescriptorFor: funcNameString returning: returnTypeSymbol withArgs: argsArray <primitive: 249> ^self primitiveFailed ! compileString: aString <primitive: 235> ^self primitiveFailed ! compileString: aString ifError: aBlock <primitive: 236> ^self primitiveFailed !! !CompiledMethod class methodsFor: 'built ins'! newMethod: numBytecodes header: anInteger <primitive: 79> ^self primitiveFailed !! !CompiledMethod methodsFor: 'built ins'! objectAt: index <primitive: 68> ^self primitiveFailed ! objectAt: index put: value <primitive: 69> ^self primitiveFailed !! !MethodContext methodsFor: 'built ins'! " Note: the name for this class in the book is 'ContextPart' " blockCopy: block <primitive: 80> !! !BlockContext methodsFor: 'built ins'! blockCopy: block <primitive: 80> ^self primitiveFailed ! value <primitive: 81> ^self primitiveFailed ! value: arg1 <primitive: 81> ^self primitiveFailed ! value: arg1 value: arg2 <primitive: 81> ^self primitiveFailed ! value: arg1 value: arg2 value: arg3 <primitive: 81> ^self primitiveFailed ! valueWithArguments: argArray <primitive: 82> ^self primitiveFailed !! !ArrayedCollection methodsFor: 'built ins'! size <primitive: 62> !! !String methodsFor: 'built ins'! size <primitive: 62> ^self primitiveFailed ! at: index <primitive: 63> ^self primitiveFailed ! basicAt: index <primitive: 63> ^self primitiveFailed ! at: index put: value <primitive: 64> ^self primitiveFailed ! basicAt: index put: value <primitive: 64> ^self primitiveFailed ! replaceFrom: start to: stop withByteArray: byteArray startingAt: replaceStart <primitive: 105> ^self primitiveFailed ! primReplaceFrom: start to: stop with: replacementString startingAt: replaceStart <primitive: 105> ^self primitiveFailed !! !Symbol class methodsFor: 'built ins'! intern: aString <primitive: 134> ^self error: 'Attempted to intern non-string' !! !Symbol methodsFor: 'built ins'! hash <primitive: 75> !! !Character class methodsFor: 'built ins'! value: anInteger "Returns the character object corresponding to anInteger. Error if anInteger is not an integer, or not in 0..255." <primitive: 132> ^self error: 'invalid argument type or integer out of range' !! !Character methodsFor: 'built ins'! = char "Boolean return value; true if the characters are equal" <primitive: 110> ! asciiValue "Returns the integer value corresponding to self" <primitive: 133> !! !Dictionary class methodsFor: 'built ins'! new <primitive: 135> ^self primitiveFailed !! !Dictionary methodsFor: 'built ins'! at: key <primitive: 128> ^self primitiveFailed ! at: key put: value <primitive: 129> ^self primitiveFailed ! ! !ByteArray methodsFor: 'built ins'! replaceFrom: start to: stop withString: aString startingAt: srcIndex <primitive: 105> ^self primitiveFailed ! primReplaceFrom: start to: stop with: aByteArray startingAt: srcIndex <primitive: 105> ^self primitiveFailed ! ! !FileStream methodsFor: 'built ins'! fileOp: ioFuncIndex <primitive: 254> ^nil ! fileOp: ioFuncIndex with: arg1 <primitive: 254> ^nil ! fileOp: ioFuncIndex with: arg1 with: arg2 <primitive: 254> ^nil ! fileIn <primitive: 247> ^self error: 'fileIn failed!!!' ! fileInLine: lineNum fileName: aString at: charPosInt <primitive: 248> ^self error: 'fileIn failed!!!' !! !Memory class methodsFor: 'basic'! addressOfOOP: anObject "Returns the address of the OOP for anObject" <primitive: 138> ! addressOf: anObject "Returns the address of the actual object that anObject references" <primitive: 139> ! type: aType at: anAddress "Returns a particular type object from memory at anAddress" <primitive: 145> ^self primitiveFailed ! type: aType at: anAddress put: aValue "Sets the memory location anAddress to aValue" <primitive: 146> ^self primitiveFailed !! !ByteMemory class methodsFor: 'basic'! at: address "Returns the byte at address as an integer" <primitive: 136> ! at: address put: value "Sets the byte at ADDRESS (an integer) to be VALUE (INTEGER 0..255)" <primitive: 137> !! !Time class methodsFor: 'builtins'! secondClock <primitive: 98> ^self primitiveFailed ! millisecondClock <primitive: 99> ^self primitiveFailed !! !Process methodsFor: 'builtins'! resume <primitive: 87> ^self primitiveFailed ! suspend <primitive: 88> ^self primitiveFailed !! !ProcessorScheduler methodsFor: 'timed invocation'! signal: aSemaphore atMilliseconds: millis " signal 'aSemaphore' after 'millis' milliseconds have elapsed" <primitive: 100> ^self primitiveFailed ! signal: aSemaphore onInterrupt: anIntegerSignalNumber <primitive: 152> ^self primitiveFailed !! !Semaphore methodsFor: 'builtins'! "communication" signal <primitive: 85> ^self primitiveFailed ! wait <primitive: 86> ^self primitiveFailed !! !ClassDescription methodsFor: 'builtins'! comment: aString <primitive: 143> "This method is present so that comment declarations can always work, even before the real method is defined." !! !Class methodsFor: 'builtins'! "These are stubs...they will be replaced with the appropriate class from Class.st. These allow for Smalltalk type class declarations of the built-in classes, so that they may be edited and modified. This mostly present to allow for future enhancement in which the Smalltalk source files take a more active role in the definition of the system, and the C definition of the classes diminishes in importance." subclass: classNameString instanceVariableNames: stringInstVarNames classVariableNames: stringOfClassVarNames poolDictionaries: stringOfPoolNames category: categoryNameString ^nil ! variableSubclass: classNameString instanceVariableNames: stringInstVarNames classVariableNames: stringOfClassVarNames poolDictionaries: stringOfPoolNames category: categoryNameString ^nil ! variableWordSubclass: classNameString instanceVariableNames: stringInstVarNames classVariableNames: stringOfClassVarNames poolDictionaries: stringOfPoolNames category: categoryNameString ^nil ! variableByteSubclass: classNameString instanceVariableNames: stringInstVarNames classVariableNames: stringOfClassVarNames poolDictionaries: stringOfPoolNames category: categoryNameString ^nil !! !CObject class methodsFor: 'instance creation'! alloc: nBytes <primitive: 144> ^self error: 'invalid argument' !! !CObject methodsFor: 'C data access'! at: anOffset type: aType <primitive: 147> ^self error: 'invalid argument(s)' ! at: anOffset put: aValue type: aType <primitive: 148> ^self error: 'invalid argument(s)' ! type <primitive: 149> ^self primitiveFailed !!