compiler/PPCDelegateNode.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Sun, 26 Oct 2014 01:03:31 +0000
changeset 391 553a5456963b
child 392 9b297f0d949c
permissions -rw-r--r--
Ported PetitCompiler-(Tests). Name: PetitCompiler-JanKurs.41 Author: JanKurs Time: 25-10-2014, 03:30:28 AM UUID: 105186d1-1187-4ca6-8d66-3d2d47def4d3 Repository: http://smalltalkhub.com/mc/JanKurs/PetitParser/main Name: PetitCompiler-Tests-JanKurs.4 Author: JanKurs Time: 25-10-2014, 03:30:58 AM UUID: 3e798fad-d5f6-4881-a583-f0bbffe27869 Repository: http://smalltalkhub.com/mc/JanKurs/PetitParser/main In addition, fixed some problems to make it compilable under Smalltalk/X: * Fixed PPCTokenNode>>initialize - there's no children instvar, it's initialization removed. * Fixed PPCContextMemento>>propertyAt:ifAbsent: - removed return-in-return, not compilable under Smalltalk/X (C issues) * Fixed PPCContextMemento>>hash - there's no stream instvar, access to it removed. * Fixed PPCAbstractCharacterNode>>compileWith:effect:id: - removed dot after method selector (stc does not like it)
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"{ Package: 'stx:goodies/petitparser/compiler' }"
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PPCNode subclass:#PPCDelegateNode
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	instanceVariableNames:'child'
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	classVariableNames:''
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	poolDictionaries:''
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	category:'PetitCompiler-Nodes'
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!
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PPCDelegateNode comment:''
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!
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!PPCDelegateNode methodsFor:'accessing'!
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child
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	^ child
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!
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child: whatever
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	child := whatever 
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!
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children
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	^ { child }
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! !
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!PPCDelegateNode methodsFor:'analysis'!
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acceptsEpsilon
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	^ child acceptsEpsilonOpenSet: (IdentitySet with: self).
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!
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acceptsEpsilonOpenSet: set
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	(set includes: child) ifFalse: [ 
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		set add: child.
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		^ child acceptsEpsilonOpenSet: set 
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	].
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	^ false
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! !
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!PPCDelegateNode methodsFor:'optimizing'!
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inline: changeStatus	
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	| inlinedNode |
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	inlinedNode := child asInlined.
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	(inlinedNode ~= child) ifTrue: [ 
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		changeStatus change.
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		self replace: child with: inlinedNode.
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	]
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!
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optimize: params status: changeStatus
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	| retval |
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	retval := self.
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	retval := retval rewrite: params status: changeStatus.
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	retval := retval inline: params status: changeStatus.
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	^ retval
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! !
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!PPCDelegateNode methodsFor:'transformation'!
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replace: node with: anotherNode
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	child == node ifTrue: [ child := anotherNode ]
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! !
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!PPCDelegateNode class methodsFor:'documentation'!
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version_HG
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    ^ '$Changeset: <not expanded> $'
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! !
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