Ported PetitCompiler-(Tests).
Name: PetitCompiler-JanKurs.41
Author: JanKurs
Time: 25-10-2014, 03:30:28 AM
UUID: 105186d1-1187-4ca6-8d66-3d2d47def4d3
Repository: http://smalltalkhub.com/mc/JanKurs/PetitParser/main
Name: PetitCompiler-Tests-JanKurs.4
Author: JanKurs
Time: 25-10-2014, 03:30:58 AM
UUID: 3e798fad-d5f6-4881-a583-f0bbffe27869
Repository: http://smalltalkhub.com/mc/JanKurs/PetitParser/main
In addition, fixed some problems to make it compilable under Smalltalk/X:
* Fixed PPCTokenNode>>initialize - there's no children instvar, it's initialization removed.
* Fixed PPCContextMemento>>propertyAt:ifAbsent: - removed return-in-return, not compilable under Smalltalk/X (C issues)
* Fixed PPCContextMemento>>hash - there's no stream instvar, access to it removed.
* Fixed PPCAbstractCharacterNode>>compileWith:effect:id: - removed dot after method selector (stc does not like it)
"{ Package: 'stx:goodies/petitparser/compiler' }"
PPCListNode subclass:#PPCSequenceNode
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'PetitCompiler-Nodes'
!
PPCSequenceNode comment:''
!
!PPCSequenceNode methodsFor:'accessing'!
prefix
^ #seq
! !
!PPCSequenceNode methodsFor:'analysis'!
acceptsEpsilon
^ self acceptsEpsilonOpenSet: IdentitySet new.
!
acceptsEpsilonOpenSet: set
set add: self.
^ self children allSatisfy: [:e | e acceptsEpsilonOpenSet: set ]
!
firstSetSuchThat: block into: aCollection openSet: aSet
(aSet includes: self) ifTrue: [ ^ aCollection ].
aSet add: self.
(block value: self) ifTrue: [ aCollection add: self. ^ aCollection ].
self children do: [ :child |
child firstSetSuchThat: block into: aCollection openSet: aSet.
child acceptsEpsilon ifFalse: [ ^ aCollection ]
].
^ aCollection
! !
!PPCSequenceNode methodsFor:'compiling'!
addGuard: compiler id: id
| guard firsts |
(compiler guards not or: [(guard := PPCGuard on: self) makesSense not]) ifTrue: [ ^ self].
firsts := (self firstSetSuchThat: [ :e | (e isKindOf: PPCTrimmingTokenNode) or: [ e isTerminal ] ]).
(firsts allSatisfy: [ :e | e isKindOf: PPCTrimmingTokenNode ]) ifTrue: [
"If we start with trimming, we should invoke the whitespace parser"
firsts anyOne compileWhitespace: compiler.
compiler add: 'context atEnd ifTrue: [ ^ self error ].'.
guard id: id, '_guard'.
guard compileGuard: compiler.
compiler addOnLine: 'ifFalse: [ ^ self error ].'
].
(firsts allSatisfy: [ :e | e isTerminal ]) ifTrue: [
compiler add: 'context atEnd ifTrue: [ ^ self error ].'.
guard id: id, '_guard'.
guard compileGuard: compiler.
compiler addOnLine: 'ifFalse: [ ^ self error ].'
].
!
compileWith: compiler effect: effect id: id
compiler startMethod: id.
compiler addVariable: 'retval'.
compiler addVariable: 'element'.
compiler addVariable: 'memento'.
compiler add: (compiler smartRemember: self).
compiler add: 'retval := Array new: ', children size asString, '.'.
self addGuard: compiler id: id.
(1 to: children size) do: [ :idx | |child|
child := children at: idx.
compiler add: 'element := '.
compiler callOnLine: (child compileWith: compiler).
compiler add: 'error ifTrue: [ ', (compiler smartRestore: self) ,' ^ failure ].'.
compiler add: 'retval at: ', idx asString, ' put: element.'.
].
compiler add: '^ retval'.
^ compiler stopMethod.
! !
!PPCSequenceNode methodsFor:'optimizing'!
asFast
^ PPCTokenSequenceNode new
children: children;
name: self name;
yourself
! !