compiler/PPCUnknownNode.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Sun, 26 Oct 2014 01:03:31 +0000
changeset 391 553a5456963b
child 392 9b297f0d949c
permissions -rw-r--r--
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' }"

PPCNode subclass:#PPCUnknownNode
	instanceVariableNames:'parser'
	classVariableNames:''
	poolDictionaries:''
	category:'PetitCompiler-Nodes'
!

PPCUnknownNode comment:''
!

!PPCUnknownNode methodsFor:'accessing'!

acceptsEpsilon
	^ parser acceptsEpsilon
!

acceptsEpsilonOpenSet: aSet
	^ parser acceptsEpsilonOpenSet: aSet
!

children
	^ parser children
!

firstCharParser
	^ parser firstCharParser
!

isContextFreePrim
	^ parser isContextFreePrim
!

parser
	
	^ parser
!

parser: anObject
	
	parser := anObject
!

prefix
	^ #parser
! !

!PPCUnknownNode methodsFor:'compiling'!

compileWith: compiler effect: effect id: id
	| compiledChild compiledParser |
	compiler startMethod: id.
	
	compiledParser := parser copy.
	"Compile all the children and call compiled version of them instead of the original one"
	compiledParser children do: [ :child | 
		compiledChild := child compileWith: compiler.
		compiledParser replace: child with: compiledChild bridge.
	].
	
	compiler addConstant: compiledParser as: id. 
	
	compiler addVariable: 'retval'.
	compiler add: 'self clearError.'.
	compiler add: '(retval := ', id, ' parseOn: context) isPetitFailure'.
	compiler indent.
	compiler add: ' ifTrue: [self error: retval message at: retval position ].'.
	compiler dedent.
	compiler add: 'error := retval isPetitFailure.'.
	compiler add: '^ retval'.
 ^ compiler stopMethod.
! !

!PPCUnknownNode methodsFor:'transformation'!

replace: node with: anotherNode
	parser replace: node with: anotherNode
! !