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 }"
PPCRewritingVisitor subclass:#PPCTokenDetector
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'PetitCompiler-Visitors'
!
!PPCTokenDetector methodsFor:'as yet unclassified'!
visitActionNode: node
(node hasProperty: #trimmingToken) ifTrue: [
| child whitespace |
self change.
child := self visitWithTokenVisitor: node child secondChild.
whitespace := self visitWithTokenVisitor: node child firstChild.
^ PPCTrimmingTokenNode new
name: node name;
child: child;
whitespace: whitespace;
tokenClass: node child secondChild tokenClass;
properties: node properties copy;
yourself.
].
^ super visitActionNode: node
!
visitTokenNode: node
| child newChild |
self change.
child := node child.
newChild := self visitWithTokenVisitor: node child.
node replace: child with: newChild.
^ node
!
visitTrimNode: node
self visitChildren: node.
(node child isKindOf: PPCTokenNode) ifTrue: [
self change.
^ PPCTrimmingTokenNode new
name: node name;
child: node child child;
tokenClass: node child tokenClass;
whitespace: node trimmer;
parser: node parser;
yourself
].
(node child isKindOf: PPCTokenConsumeNode) ifTrue: [
self change.
self halt: 'JK: this can happen???'.
^ PPCTrimmingTokenNode new
name: node name;
child: node child;
tokenClass: node child child tokenClass;
whitespace: node trimmer;
yourself
].
^ node
!
visitWithTokenVisitor: node
| retval forbiddenNodes copyVisitor tokenVisitor |
copyVisitor := PPCCopyVisitor new.
tokenVisitor := PPCTokenVisitor new.
forbiddenNodes := openSet copy.
tokenVisitor forbiddenNodes: forbiddenNodes.
retval := copyVisitor visit: node.
retval := tokenVisitor visit: retval.
^ retval
! !