"{ Package: 'stx:goodies/petitparser/compiler' }"

"{ NameSpace: Smalltalk }"

PPCStarNode subclass:#PPCStarCharSetPredicateNode
	instanceVariableNames:'predicate'
	classVariableNames:''
	poolDictionaries:''
	category:'PetitCompiler-Nodes'
!

!PPCStarCharSetPredicateNode methodsFor:'accessing'!

compileWith: compiler effect: effect id: id
	| classification classificationId |
	
	compiler startMethod: id.
	classification := self extendClassification: predicate classification.
	classificationId := compiler idFor: classification prefixed: #classification.
	compiler addConstant: classification as: classificationId.
	
	compiler addVariable: 'retval'.
	compiler add: 'retval := OrderedCollection new.'.	
	compiler add: '[ ', classificationId, ' at: context peek asInteger ] whileTrue: ['.
	compiler indent.
	compiler add: ' retval add: context next.'.
	compiler dedent.
	compiler add: '].'.
   compiler add: '^ retval asArray'.
 ^ compiler stopMethod.
!

extendClassification: classification
	^ (classification asOrderedCollection addLast: false; yourself) asArray
!

firstCharSet
	^ PPCharSetPredicate on: predicate 	
!

predicate
	
	^ predicate
!

predicate: anObject
	
	predicate := anObject
!

prefix
	^ #starPredicate
!

rewrite: changeStatus
	"Nothing TODO"
! !

!PPCStarCharSetPredicateNode methodsFor:'comparing'!

= anotherNode
	super = anotherNode ifFalse: [ ^ false ].
	^ predicate = anotherNode predicate.
!

hash
	^ super hash bitXor: predicate hash
! !