Portability fixes
* do not use Object>>asString. Not all Smalltalks implement it.
* do not use Object>>name. Not all Smalltalks implement it.
* do not use Dictionary keysAndValuesRemove:. Not all Smalltalks implement it.
* do not use Class>>methods The semantics is different among Smalltalks.
Use `Class methodDictionary values` instead.
* do not modify dictionary in #at:ifAbsentPut: block!
"{ Package: 'stx:goodies/petitparser/compiler' }"
"{ NameSpace: Smalltalk }"
PPCDelegateNode subclass:#PPCForwardNode
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'PetitCompiler-Nodes'
!
!PPCForwardNode methodsFor:'accessing'!
child: node
"(node name asString beginsWith: 'symbol') ifTrue: [ self halt. ]."
^ super child: node
!
defaultName
^ #fw
! !
!PPCForwardNode methodsFor:'analysis'!
check
^ (self name notNil and: [
child name = self name and: [
child suffix = self suffix
]]) ifTrue: [ 'referring to itself!!' ]
! !
!PPCForwardNode methodsFor:'visiting'!
accept: visitor
^ visitor visitForwardNode: self
! !