compiler/PPCAbstractLiteralNode.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Thu, 30 Jul 2015 08:37:37 +0100
changeset 510 869853decf31
parent 452 9f4558b3be66
child 515 b5316ef15274
permissions -rw-r--r--
Tests refactoring - use generated test cases to make sure all posibilities are tested. Do not generate resource for all combinations, use PPCSetUpBeforeTearDownAfterResource instead that delegates parser compilation to the testcase itself (it calls it's #setUpBefore method).
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"{ Package: 'stx:goodies/petitparser/compiler' }"
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"{ NameSpace: Smalltalk }"
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PPCNode subclass:#PPCAbstractLiteralNode
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	instanceVariableNames:'literal'
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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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!PPCAbstractLiteralNode methodsFor:'accessing'!
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literal
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    ^ literal
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!
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literal: anObject
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    literal := anObject
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!
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prefix
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    ^ #lit
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! !
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!PPCAbstractLiteralNode methodsFor:'analysis'!
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acceptsEpsilon
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    ^ literal size = 0
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!
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firstCharSet
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    | letter |
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    letter := literal first.
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    ^ PPCharSetPredicate on: [:e | e = letter ]
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! !
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!PPCAbstractLiteralNode methodsFor:'comparison'!
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= anotherNode
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    super = anotherNode ifFalse: [ ^ false ].
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    ^ literal = anotherNode literal.
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!
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hash
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    ^ super hash bitXor: literal hash
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! !
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!PPCAbstractLiteralNode methodsFor:'compiling'!
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encodeQuotes: string
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    | x s |
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    s := WriteStream on: ''.
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    1 to: string size do: [ :i|
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        s nextPut: (x := string at: i).
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        x = $' ifTrue: [ s nextPut: x ].
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    ].
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    ^ s contents
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! !
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