compiler/PPCNotCharacterNode.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Tue, 16 Jun 2015 06:45:26 +0100
changeset 489 0ca7a70db0f5
parent 464 f6d77fee9811
child 515 b5316ef15274
permissions -rw-r--r--
Fix in codegen for inlined sequence nodes. For inlined sequence nodes, generate nested ifs rather than sequential code which does not work when inlined. The reason is that #codeReturn: in inline generates instvar assignment, not method return, so in sequential code the next child of a sequence will be probed even if previous failed. If that happends, the whole sequence fail and therefore we must generate nested ifs to correctly handle this w.r.t. inlining.
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"{ Package: 'stx:goodies/petitparser/compiler' }"
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"{ NameSpace: Smalltalk }"
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PPCCharacterNode subclass:#PPCNotCharacterNode
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	instanceVariableNames:''
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	classVariableNames:''
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	poolDictionaries:''
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	category:'PetitCompiler-Nodes'
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!
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!PPCNotCharacterNode methodsFor:'accessing'!
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prefix
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    ^ #notChar
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! !
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!PPCNotCharacterNode methodsFor:'as yet unclassified'!
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accept: visitor
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    ^ visitor visitNotCharacterNode: self
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!
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firstCharSet
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    ^ PPCharSetPredicate on: [:e | (e = character) not ]
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!
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recognizedSentencesPrim
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    | retval |
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    retval := OrderedCollection new.
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    "TODO JK: Works only for ASCII :("
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    1 to: 255 do: [ :i |
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        (character = (Character codePoint: i)) ifFalse: [ 
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            retval add: (Character codePoint: i) asString 
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        ]
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    ].
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    ^ retval
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! !
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