compiler/PPCAbstractPredicateNode.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Tue, 02 Jun 2015 00:16:55 +0100
changeset 479 6316a98b7150
parent 452 9f4558b3be66
child 515 b5316ef15274
permissions -rw-r--r--
Action inlining [1/x]: Initial support for inlining actions parsers (i.e., ==>) The code of the action is now inlined into parsing method rather then delegated to stored block. Mapping parser (i.e., map:[...]) are not supported and not detected, so using them cause crash. This will be fixed later.

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

"{ NameSpace: Smalltalk }"

PPCNode subclass:#PPCAbstractPredicateNode
	instanceVariableNames:'predicate'
	classVariableNames:''
	poolDictionaries:''
	category:'PetitCompiler-Nodes'
!

!PPCAbstractPredicateNode methodsFor:'accessing'!

predicate
    
    ^ predicate
!

predicate: anObject
    
    predicate := anObject
!

prefix
    ^ #predicate
! !

!PPCAbstractPredicateNode methodsFor:'analysis'!

acceptsEpsilon
    ^ false
!

firstCharSet
    ^ PPCharSetPredicate on: predicate
! !

!PPCAbstractPredicateNode methodsFor:'comparing'!

= anotherNode
    super = anotherNode ifFalse: [ ^ false ].
    ^ predicate = anotherNode predicate.
!

hash
    ^ super hash bitXor: predicate hash
!

recognizedSentencesPrim
    | retval |

    retval := OrderedCollection new.
    "TODO JK: Works only for ASCII :("
    1 to: 255 do: [ :i |
        (predicate value: (Character codePoint: i)) ifTrue: [ 
            retval add: (Character codePoint: i) asString 
        ]
    ].
    ^ retval
! !

!PPCAbstractPredicateNode methodsFor:'compiling'!

extendClassification: classification
    ^ (classification asOrderedCollection addLast: false; yourself) asArray
! !