compiler/PPCPluggableNode.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Thu, 18 Jun 2015 21:20:15 +0100
changeset 496 0433a9d7fbcd
parent 452 9f4558b3be66
child 515 b5316ef15274
permissions -rw-r--r--
Reverted fc3dbe5654c5: sending #copy should be OK (copy set's parent properly)

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

"{ NameSpace: Smalltalk }"

PPCNode subclass:#PPCPluggableNode
	instanceVariableNames:'block'
	classVariableNames:''
	poolDictionaries:''
	category:'PetitCompiler-Nodes'
!


!PPCPluggableNode methodsFor:'accessing'!

block
    
    ^ block
!

block: anObject
    
    block := anObject
!

prefix
    ^ #plug
! !

!PPCPluggableNode methodsFor:'analysis'!

acceptsEpsilon
    ^ true
!

acceptsEpsilonOpenSet: set
    ^ true
!

firstCharSet
    ^ PPCharSetPredicate on: [:char | (block asParser parse: char asString) isPetitFailure not ]
! !

!PPCPluggableNode methodsFor:'comparing'!

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

hash
    ^ super hash bitXor: block hash
! !

!PPCPluggableNode methodsFor:'visiting'!

accept: visitor
    ^ visitor visitPluggableNode: self
! !

!PPCPluggableNode class methodsFor:'documentation'!

version_HG

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