org.antlr.grammar.v3

Class ActionAnalysis

java.lang.Object

org.antlr.runtime.BaseRecognizer

org.antlr.runtime.Lexer

org.antlr.grammar.v3.ActionAnalysis

All Implemented Interfaces:

TokenSource

public class ActionAnalysis
extends Lexer

We need to set Rule.referencedPredefinedRuleAttributes before code generation. This filter looks at an action in context of its rule and outer alternative number and figures out which rules have predefined prefs referenced. I need this so I can remove unusued labels. This also tracks, for labeled rules, which are referenced by actions.

Field Summary

Fields

Modifier and Type	Field and Description
static int	EOF
static int	ID
static int	X
static int	X_Y
static int	Y

Fields inherited from class org.antlr.runtime.Lexer

input

Fields inherited from class org.antlr.runtime.BaseRecognizer

DEFAULT_TOKEN_CHANNEL, HIDDEN, INITIAL_FOLLOW_STACK_SIZE, MEMO_RULE_FAILED, MEMO_RULE_UNKNOWN, NEXT_TOKEN_RULE_NAME, state

Constructor Summary

Constructors

Constructor and Description
ActionAnalysis()
ActionAnalysis(CharStream input)
ActionAnalysis(CharStream input, RecognizerSharedState state)
ActionAnalysis(Grammar grammar, String ruleName, GrammarAST actionAST)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	alreadyParsedRule(IntStream input, int ruleIndex)
void	analyze()
Lexer[]	getDelegates()
String	getGrammarFileName()
void	memoize(IntStream input, int ruleIndex, int ruleStartIndex)
void	mID()
void	mTokens()
void	mX_Y()
void	mX()
void	mY()
Token	nextToken()
void	synpred1_ActionAnalysis_fragment()
boolean	synpred1_ActionAnalysis()
void	synpred2_ActionAnalysis_fragment()
boolean	synpred2_ActionAnalysis()

Methods inherited from class org.antlr.runtime.Lexer

emit, emit, getCharErrorDisplay, getCharIndex, getCharPositionInLine, getCharStream, getEOFToken, getErrorMessage, getLine, getSourceName, getText, match, match, matchAny, matchRange, recover, reportError, reset, setCharStream, setText, skip, traceIn, traceOut

Methods inherited from class org.antlr.runtime.BaseRecognizer

beginResync, combineFollows, computeContextSensitiveRuleFOLLOW, computeErrorRecoverySet, consumeUntil, consumeUntil, displayRecognitionError, emitErrorMessage, endResync, failed, getBacktrackingLevel, getCurrentInputSymbol, getErrorHeader, getMissingSymbol, getNumberOfSyntaxErrors, getRuleInvocationStack, getRuleInvocationStack, getRuleMemoization, getRuleMemoizationCacheSize, getTokenErrorDisplay, getTokenNames, match, matchAny, mismatchIsMissingToken, mismatchIsUnwantedToken, pushFollow, recover, recoverFromMismatchedSet, recoverFromMismatchedToken, setBacktrackingLevel, toStrings, traceIn, traceOut

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

EOF

public static final int EOF

See Also:

Constant Field Values

ID

public static final int ID

See Also:

Constant Field Values

X

public static final int X

See Also:

Constant Field Values

X_Y

public static final int X_Y

See Also:

Constant Field Values

Y

public static final int Y

See Also:

Constant Field Values

Constructor Detail

ActionAnalysis

public ActionAnalysis(Grammar grammar,
              String ruleName,
              GrammarAST actionAST)

ActionAnalysis

public ActionAnalysis()

ActionAnalysis

public ActionAnalysis(CharStream input)

ActionAnalysis

public ActionAnalysis(CharStream input,
              RecognizerSharedState state)

Method Detail

analyze

public void analyze()

getDelegates

public Lexer[] getDelegates()

getGrammarFileName

public String getGrammarFileName()

Overrides:

getGrammarFileName in class BaseRecognizer

nextToken

public Token nextToken()

Specified by:

nextToken in interface TokenSource

Overrides:

nextToken in class Lexer

memoize

public void memoize(IntStream input,
           int ruleIndex,
           int ruleStartIndex)

Overrides:

memoize in class BaseRecognizer

alreadyParsedRule

public boolean alreadyParsedRule(IntStream input,
                        int ruleIndex)

Overrides:

alreadyParsedRule in class BaseRecognizer

mX_Y

public final void mX_Y()
                throws RecognitionException

Throws:

RecognitionException

mX

public final void mX()
              throws RecognitionException

Throws:

RecognitionException

mY

public final void mY()
              throws RecognitionException

Throws:

RecognitionException

mID

public final void mID()
               throws RecognitionException

Throws:

RecognitionException

mTokens

public void mTokens()
             throws RecognitionException

Specified by:

mTokens in class Lexer

Throws:

RecognitionException

synpred1_ActionAnalysis_fragment

public final void synpred1_ActionAnalysis_fragment()
                                            throws RecognitionException

Throws:

RecognitionException

synpred2_ActionAnalysis_fragment

public final void synpred2_ActionAnalysis_fragment()
                                            throws RecognitionException

Throws:

RecognitionException

synpred2_ActionAnalysis

public final boolean synpred2_ActionAnalysis()

synpred1_ActionAnalysis

public final boolean synpred1_ActionAnalysis()