org.eclipse.xtext.ui.editor.contentassist.antlr.internal

Class AbstractInternalContentAssistParser

java.lang.Object

org.antlr.runtime.BaseRecognizer

org.antlr.runtime.Parser

org.eclipse.xtext.ui.editor.contentassist.antlr.internal.AbstractInternalContentAssistParser

All Implemented Interfaces:

ITokenDefProvider, ObservableXtextTokenStream.StreamListener

public abstract class AbstractInternalContentAssistParser
extends org.antlr.runtime.Parser
implements ObservableXtextTokenStream.StreamListener, ITokenDefProvider

Author:

Sebastian Zarnekow - Initial contribution and API

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	AbstractInternalContentAssistParser.DefaultFollowElementFactory
static interface	AbstractInternalContentAssistParser.RecoveryListener
protected class	AbstractInternalContentAssistParser.StreamAdapter

Field Summary

Fields

Modifier and Type	Field and Description
protected int	currentMarker
protected ObservableXtextTokenStream.StreamListener	delegate
protected boolean	failedPredicateAtEOF
protected int	firstMarker
protected org.eclipse.xtext.ui.editor.contentassist.antlr.internal.AbstractInternalContentAssistParser.IFollowElementFactory	followElementFactory
protected Set<FollowElement>	followElements
protected List<org.eclipse.emf.ecore.EObject>	grammarElements
protected List<Integer>	grammarElementsWithParams
protected com.google.common.collect.Multimap<Integer,AbstractElement>	indexToHandledElements
protected boolean	inMismatchIsUnwantedToken
protected List<org.eclipse.emf.ecore.EObject>	localTrace
protected int	lookAheadAddOn
protected int	marked
protected boolean	mismatch
protected List<Integer>	paramStack
protected int	predictionLevel
protected AbstractInternalContentAssistParser.RecoveryListener	recoveryListener
protected boolean	resyncing
protected int	stackSize
protected boolean	strict
protected List<TerminalRule>	terminalRules
protected IUnorderedGroupHelper	unorderedGroupHelper
protected int	wasErrorCount

Fields inherited from class org.antlr.runtime.Parser

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
AbstractInternalContentAssistParser(org.antlr.runtime.TokenStream input)
AbstractInternalContentAssistParser(org.antlr.runtime.TokenStream input, org.antlr.runtime.RecognizerSharedState state)

Method Summary

Methods

Modifier and Type	Method and Description
void	after(org.eclipse.emf.ecore.EObject grammarElement)
void	after(org.eclipse.emf.ecore.EObject grammarElement, int paramConfig)
void	announceConsume()
void	announceEof(int lookAhead)
void	announceMark(int marker)
void	announceRewind(int marker)
void	before(org.eclipse.emf.ecore.EObject grammarElement)
void	before(org.eclipse.emf.ecore.EObject grammarElement, int paramConfig)
void	beginDFAPrediction()
void	beginResync()
protected AbstractInternalContentAssistParser.StreamAdapter	createErrorRecoveryStrategy()
protected FollowElement	createFollowElement(AbstractElement current, int lookAhead)
LookAheadTerminal	createLookAheadTerminal(org.antlr.runtime.Token token)
protected AbstractInternalContentAssistParser.StreamAdapter	createMismatchStrategy()
protected AbstractInternalContentAssistParser.StreamAdapter	createNoOpStrategy()
protected AbstractInternalContentAssistParser.StreamAdapter	createNotErrorRecoveryStrategy()
protected AbstractInternalContentAssistParser.StreamAdapter	createPredictionStrategy()
void	emitErrorMessage(String msg)
void	endDFAPrediction()
void	endResync()
protected AbstractElement	getCurrentGrammarElement()
Set<FollowElement>	getFollowElements()
protected abstract Grammar	getGrammar()
List<org.eclipse.emf.ecore.EObject>	getGrammarElements()
org.antlr.runtime.RecognizerSharedState	getInternalRecognizerSharedState()
List<org.eclipse.emf.ecore.EObject>	getLocalTrace()
protected int	getLookaheadThreshold() When experiencing slow content assist, try to reduce the threshold.
List<Integer>	getParamStack()
AbstractInternalContentAssistParser.RecoveryListener	getRecoveryListener()
Map<Integer,String>	getTokenDefMap()
IUnorderedGroupHelper	getUnorderedGroupHelper()
protected String	getValueForTokenName(String tokenName)
protected boolean	isBacktracking()
boolean	isDFAPrediction()
protected int	keepStackSize()
boolean	mismatchIsMissingToken(org.antlr.runtime.IntStream input, org.antlr.runtime.BitSet follow)
boolean	mismatchIsUnwantedToken(org.antlr.runtime.IntStream input, int ttype)
void	recover(org.antlr.runtime.IntStream stream, org.antlr.runtime.RecognitionException ex)
protected Object	recoverFromMismatchedToken(org.antlr.runtime.IntStream input, int ttype, org.antlr.runtime.BitSet follow)
protected void	restoreStackSize(int stackSize)
protected void	selectEofStrategy()
protected void	selectEofStrategy(int lookAhead)
void	setRecoveryListener(AbstractInternalContentAssistParser.RecoveryListener recoveryListener)
void	setStrict(boolean strict)
void	setUnorderedGroupHelper(IUnorderedGroupHelper unorderedGroupHelper)
protected static short[][]	unpackEncodedStringArray(String[] arr)

Methods inherited from class org.antlr.runtime.Parser

getCurrentInputSymbol, getMissingSymbol, getSourceName, getTokenStream, reset, setTokenStream, traceIn, traceOut

Methods inherited from class org.antlr.runtime.BaseRecognizer

alreadyParsedRule, combineFollows, computeContextSensitiveRuleFOLLOW, computeErrorRecoverySet, consumeUntil, consumeUntil, displayRecognitionError, failed, getBacktrackingLevel, getErrorHeader, getErrorMessage, getGrammarFileName, getNumberOfSyntaxErrors, getRuleInvocationStack, getRuleInvocationStack, getRuleMemoization, getRuleMemoizationCacheSize, getTokenErrorDisplay, getTokenNames, match, matchAny, memoize, pushFollow, recoverFromMismatchedSet, reportError, setBacktrackingLevel, toStrings, traceIn, traceOut

Methods inherited from class java.lang.Object

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

Field Detail

grammarElements

protected final List<org.eclipse.emf.ecore.EObject> grammarElements

localTrace

protected final List<org.eclipse.emf.ecore.EObject> localTrace

paramStack

protected final List<Integer> paramStack

Since:

2.9

grammarElementsWithParams

protected final List<Integer> grammarElementsWithParams

Since:

2.9

stackSize

protected int stackSize

followElements

protected final Set<FollowElement> followElements

delegate

protected ObservableXtextTokenStream.StreamListener delegate

terminalRules

protected List<TerminalRule> terminalRules

mismatch

protected boolean mismatch

recoveryListener

protected AbstractInternalContentAssistParser.RecoveryListener recoveryListener

lookAheadAddOn

protected int lookAheadAddOn

marked

protected int marked

resyncing

protected boolean resyncing

strict

protected boolean strict

wasErrorCount

protected int wasErrorCount

predictionLevel

protected int predictionLevel

currentMarker

protected int currentMarker

firstMarker

protected int firstMarker

inMismatchIsUnwantedToken

protected boolean inMismatchIsUnwantedToken

failedPredicateAtEOF

protected boolean failedPredicateAtEOF

indexToHandledElements

protected com.google.common.collect.Multimap<Integer,AbstractElement> indexToHandledElements

unorderedGroupHelper

protected IUnorderedGroupHelper unorderedGroupHelper

followElementFactory

protected org.eclipse.xtext.ui.editor.contentassist.antlr.internal.AbstractInternalContentAssistParser.IFollowElementFactory followElementFactory

Constructor Detail

AbstractInternalContentAssistParser

public AbstractInternalContentAssistParser(org.antlr.runtime.TokenStream input,
                                   org.antlr.runtime.RecognizerSharedState state)

AbstractInternalContentAssistParser

public AbstractInternalContentAssistParser(org.antlr.runtime.TokenStream input)

Method Detail

getLookaheadThreshold

protected int getLookaheadThreshold()

When experiencing slow content assist, try to reduce the threshold.

Since:

2.4

before

public void before(org.eclipse.emf.ecore.EObject grammarElement)

before

public void before(org.eclipse.emf.ecore.EObject grammarElement,
          int paramConfig)

Since:

2.9

after

public void after(org.eclipse.emf.ecore.EObject grammarElement,
         int paramConfig)

Since:

2.9

after

public void after(org.eclipse.emf.ecore.EObject grammarElement)

recover

public void recover(org.antlr.runtime.IntStream stream,
           org.antlr.runtime.RecognitionException ex)

Overrides:

recover in class org.antlr.runtime.BaseRecognizer

emitErrorMessage

public void emitErrorMessage(String msg)

Overrides:

emitErrorMessage in class org.antlr.runtime.BaseRecognizer

getInternalRecognizerSharedState

public org.antlr.runtime.RecognizerSharedState getInternalRecognizerSharedState()

Since:

2.3

getGrammar

protected abstract Grammar getGrammar()

keepStackSize

protected int keepStackSize()

restoreStackSize

protected void restoreStackSize(int stackSize)

isBacktracking

protected boolean isBacktracking()

Since:

2.4

selectEofStrategy

protected void selectEofStrategy(int lookAhead)

Since:

2.6

selectEofStrategy

protected void selectEofStrategy()
                          throws UnsupportedOperationException

Throws:

UnsupportedOperationException

createNoOpStrategy

protected AbstractInternalContentAssistParser.StreamAdapter createNoOpStrategy()

Since:

2.6

createPredictionStrategy

protected AbstractInternalContentAssistParser.StreamAdapter createPredictionStrategy()

createErrorRecoveryStrategy

protected AbstractInternalContentAssistParser.StreamAdapter createErrorRecoveryStrategy()

createNotErrorRecoveryStrategy

protected AbstractInternalContentAssistParser.StreamAdapter createNotErrorRecoveryStrategy()

createMismatchStrategy

protected AbstractInternalContentAssistParser.StreamAdapter createMismatchStrategy()

beginResync

public void beginResync()

Overrides:

beginResync in class org.antlr.runtime.BaseRecognizer

endResync

public void endResync()

Overrides:

endResync in class org.antlr.runtime.BaseRecognizer

recoverFromMismatchedToken

protected Object recoverFromMismatchedToken(org.antlr.runtime.IntStream input,
                                int ttype,
                                org.antlr.runtime.BitSet follow)
                                     throws org.antlr.runtime.RecognitionException

Overrides:

recoverFromMismatchedToken in class org.antlr.runtime.BaseRecognizer

Throws:

org.antlr.runtime.RecognitionException

mismatchIsMissingToken

public boolean mismatchIsMissingToken(org.antlr.runtime.IntStream input,
                             org.antlr.runtime.BitSet follow)

Overrides:

mismatchIsMissingToken in class org.antlr.runtime.BaseRecognizer

getCurrentGrammarElement

protected AbstractElement getCurrentGrammarElement()

createFollowElement

protected FollowElement createFollowElement(AbstractElement current,
                                int lookAhead)

createLookAheadTerminal

public LookAheadTerminal createLookAheadTerminal(org.antlr.runtime.Token token)

announceEof

public void announceEof(int lookAhead)

Specified by:

announceEof in interface ObservableXtextTokenStream.StreamListener

announceConsume

public void announceConsume()

Specified by:

announceConsume in interface ObservableXtextTokenStream.StreamListener

mismatchIsUnwantedToken

public boolean mismatchIsUnwantedToken(org.antlr.runtime.IntStream input,
                              int ttype)

Overrides:

mismatchIsUnwantedToken in class org.antlr.runtime.BaseRecognizer

announceRewind

public void announceRewind(int marker)

Specified by:

announceRewind in interface ObservableXtextTokenStream.StreamListener

announceMark

public void announceMark(int marker)

Specified by:

announceMark in interface ObservableXtextTokenStream.StreamListener

beginDFAPrediction

public void beginDFAPrediction()

isDFAPrediction

public boolean isDFAPrediction()

endDFAPrediction

public void endDFAPrediction()

getFollowElements

public Set<FollowElement> getFollowElements()

getTokenDefMap

public Map<Integer,String> getTokenDefMap()

Specified by:

getTokenDefMap in interface ITokenDefProvider

getValueForTokenName

protected String getValueForTokenName(String tokenName)

getGrammarElements

public List<org.eclipse.emf.ecore.EObject> getGrammarElements()

getLocalTrace

public List<org.eclipse.emf.ecore.EObject> getLocalTrace()

getParamStack

public List<Integer> getParamStack()

Since:

2.9

getRecoveryListener

public AbstractInternalContentAssistParser.RecoveryListener getRecoveryListener()

setRecoveryListener

public void setRecoveryListener(AbstractInternalContentAssistParser.RecoveryListener recoveryListener)

setUnorderedGroupHelper

public void setUnorderedGroupHelper(IUnorderedGroupHelper unorderedGroupHelper)

getUnorderedGroupHelper

public IUnorderedGroupHelper getUnorderedGroupHelper()

setStrict

public void setStrict(boolean strict)

unpackEncodedStringArray

protected static short[][] unpackEncodedStringArray(String[] arr)

Since:

2.9