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

PPCNode subclass:#PPCUnknownNode

	instanceVariableNames:'parser'

	classVariableNames:''

	poolDictionaries:''

	category:'PetitCompiler-Nodes'

!

!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

! !