compiler/PPCCompilerTokenRememberStrategy.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Thu, 18 Jun 2015 21:20:15 +0100
changeset 496 0433a9d7fbcd
parent 464 f6d77fee9811
child 515 b5316ef15274
permissions -rw-r--r--
Reverted fc3dbe5654c5: sending #copy should be OK (copy set's parent properly)
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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"{ Package: 'stx:goodies/petitparser/compiler' }"
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"{ NameSpace: Smalltalk }"
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Object subclass:#PPCCompilerTokenRememberStrategy
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	instanceVariableNames:'compiler'
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	classVariableNames:''
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	poolDictionaries:''
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	category:'PetitCompiler-Compiler'
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!
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!PPCCompilerTokenRememberStrategy class methodsFor:'instance creation'!
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on: aPPCCompiler
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    ^ self new
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        compiler: aPPCCompiler;
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        yourself
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! !
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!PPCCompilerTokenRememberStrategy methodsFor:'accessing'!
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compiler: aPPCCompiler
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    compiler := aPPCCompiler 
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! !
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!PPCCompilerTokenRememberStrategy methodsFor:'as yet unclassified'!
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smartRemember: parser to: variableName 
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    parser isContextFree ifTrue: [ 
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        compiler 	codeAssign: 'context lwRemember.' 
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                    to: variableName.
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    ] ifFalse: [ 
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        compiler codeAssign: 'context remember.'
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                    to: variableName.
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    ]
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!
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smartRestore: parser from: mementoName
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    parser isContextFree ifTrue: [ 
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        compiler add: 'context lwRestore: ', mementoName, '.'.
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    ] ifFalse: [ 
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        compiler add: 'context restore: ', mementoName, '.'.
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    ].
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! !
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