compiler/PPCFSAVisitor.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Mon, 24 Aug 2015 17:38:44 +0100
changeset 527 9b50ec9a6918
parent 524 f6f68d32de73
child 532 132d7898a2a1
permissions -rw-r--r--
Added missing #new methods
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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"{ Package: 'stx:goodies/petitparser/compiler' }"
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f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
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"{ NameSpace: Smalltalk }"
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PPCNodeVisitor subclass:#PPCFSAVisitor
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	instanceVariableNames:'fsaCache idGen'
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	classVariableNames:''
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	poolDictionaries:''
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	category:'PetitCompiler-Visitors'
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!
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f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
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!PPCFSAVisitor methodsFor:'accessing'!
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f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
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idGen: anObject
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    idGen := anObject
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! !
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f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
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!PPCFSAVisitor methodsFor:'as yet unclassified'!
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unorderedChoiceFromFollowSet: followSet
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    | followFsas  |
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    ^ fsaCache at: followSet ifAbsentPut: [ 
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        followFsas := followSet collect: [ :followNode | 
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            followNode asFsa 
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                name: (idGen idFor: followNode);
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                retval: (idGen idFor: followNode); 
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                yourself
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        ].
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        self unorderedChoiceFromFsas: followFsas.
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    ]
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!
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f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
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unorderedChoiceFromFsas: fsas
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    | result startState |
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    result := PEGFsa new.
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    startState := PEGFsaState new.
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    result addState: startState.
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    result startState: startState.
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    fsas do: [ :fsa | 
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        result adopt: fsa.
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        result addTransitionFrom: startState to: fsa startState.
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    ].
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    result determinizeStandard.
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    ^ result
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!
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visitToken: tokenNode
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    | anFsa |
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    anFsa := tokenNode asFsa determinize.
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    anFsa name: (idGen idFor: tokenNode).
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    anFsa retval: (idGen idFor: tokenNode).
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    tokenNode fsa: anFsa.
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    ^ tokenNode
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!
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visitTokenConsumeNode: node
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    | epsilon anFsa followSet |
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    followSet := node followSetWithTokens.
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    epsilon := followSet anySatisfy: [ :e | e acceptsEpsilon ].
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    followSet := followSet reject: [ :e | e acceptsEpsilon ].
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    epsilon ifTrue: [ followSet add: PPCEndOfFileNode instance ].
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    anFsa := self unorderedChoiceFromFollowSet: followSet.
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    anFsa name: 'nextToken_', (idGen idFor: node).
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    node nextFsa: anFsa.
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!
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    76
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    77
visitTokenNode: node
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    78
    ^ self visitToken: node
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    79
!
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    80
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    81
visitTokenizingParserNode: node
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    82
    "TODO JK: hack alert, change the handling of WS!!"
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    83
    self visitWhitespace: node whitespace.
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    84
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    85
    self visit: node tokens.
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    86
    self visit: node parser.
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    87
    ^ node
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    88
!
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    89
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    90
visitTrimmingTokenNode: node
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    91
    ^ self visitToken: node
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    92
!
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    93
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    94
visitWhitespace: node
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    95
    "JK HACK: treat ws as token -> create FSA for whitespace"
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    96
    | retval |
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    97
    retval := self visitToken: node.
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    98
    "we don't care about the finals of whitespace"
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
    99
    node fsa removeFinals.
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
   100
    ^ retval
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
   101
! !
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
   102
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
   103
!PPCFSAVisitor methodsFor:'initialization'!
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
   104
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
   105
initialize
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
   106
    super initialize.
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
   107
    
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
   108
    "for the given set of nodes, remember the unordered choice fsa
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
   109
        see `unorderedChoiceFromFollowSet:`
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
   110
    "
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
   111
    fsaCache := Dictionary new.
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
   112
! !
f6f68d32de73 Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
diff changeset
   113