compiler/PPCDelegateNode.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Mon, 17 Aug 2015 12:13:16 +0100
changeset 515 b5316ef15274
parent 452 9f4558b3be66
permissions -rw-r--r--
Updated to PetitCompiler-JanKurs.160, PetitCompiler-Tests-JanKurs.112, PetitCompiler-Extras-Tests-JanKurs.25, PetitCompiler-Benchmarks-JanKurs.17 Name: PetitCompiler-JanKurs.160 Author: JanKurs Time: 17-08-2015, 09:52:26.291 AM UUID: 3b4bfc98-8098-4951-af83-a59e2585b121 Name: PetitCompiler-Tests-JanKurs.112 Author: JanKurs Time: 16-08-2015, 05:00:32.936 PM UUID: 85613d47-08f3-406f-9823-9cdab451e805 Name: PetitCompiler-Extras-Tests-JanKurs.25 Author: JanKurs Time: 16-08-2015, 05:00:10.328 PM UUID: 09731810-51a1-4151-8d3a-56b636fbd1f7 Name: PetitCompiler-Benchmarks-JanKurs.17 Author: JanKurs Time: 05-08-2015, 05:29:32.407 PM UUID: e544b5f1-bcf8-470b-93a6-d2363e4dfc8a

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

"{ NameSpace: Smalltalk }"

PPCNode subclass:#PPCDelegateNode
	instanceVariableNames:'child'
	classVariableNames:''
	poolDictionaries:''
	category:'PetitCompiler-Nodes'
!


!PPCDelegateNode methodsFor:'accessing'!

child
    ^ child
!

child: whatever
    self assert: (whatever == self) not.
    child := whatever 
!

children
    ^ { child }
! !

!PPCDelegateNode methodsFor:'analysis'!

acceptsEpsilon
    ^ child acceptsEpsilonOpenSet: (IdentitySet with: self).
!

acceptsEpsilonOpenSet: set
    (set includes: child) ifFalse: [ 
        set add: child.
        ^ child acceptsEpsilonOpenSet: set 
    ].
    ^ false
!

recognizedSentencesPrim
    ^ self child recognizedSentencesPrim 
! !

!PPCDelegateNode methodsFor:'transformation'!

replace: node with: anotherNode
    self assert: (anotherNode == self) not.
    child == node ifTrue: [ child := anotherNode ]
! !

!PPCDelegateNode class methodsFor:'documentation'!

version_HG

    ^ '$Changeset: <not expanded> $'
! !