1. 包列表
  2. 类列表
  3. org.antlr.v4.runtime.RuleContext

Java 类org.antlr.v4.runtime.RuleContext 实例源码

项目：oscm-app    文件：FWPolicyLexer.java    
@Override
public void action(RuleContext _localctx, int ruleIndex, int actionIndex) {
    switch (ruleIndex) {
    case 6:
        MINUS_action((RuleContext) _localctx, actionIndex);
        break;

    case 7:
        SLASH_action((RuleContext) _localctx, actionIndex);
        break;

    case 8:
        LPAR_action((RuleContext) _localctx, actionIndex);
        break;

    case 9:
        RPAR_action((RuleContext) _localctx, actionIndex);
        break;

    case 19:
        WS_action((RuleContext) _localctx, actionIndex);
        break;
    }
}
项目：oscm    文件：FWPolicyLexer.java    
@Override
public void action(RuleContext _localctx, int ruleIndex, int actionIndex) {
    switch (ruleIndex) {
    case 6:
        MINUS_action((RuleContext) _localctx, actionIndex);
        break;

    case 7:
        SLASH_action((RuleContext) _localctx, actionIndex);
        break;

    case 8:
        LPAR_action((RuleContext) _localctx, actionIndex);
        break;

    case 9:
        RPAR_action((RuleContext) _localctx, actionIndex);
        break;

    case 19:
        WS_action((RuleContext) _localctx, actionIndex);
        break;
    }
}
项目：Lambda-Interpreter    文件：ReduceVisitor.java    
/**
 * En partant d'une noeud permet de déterminer si il est dans l'expression d'une abstraction ou non.
 *
 * @param ctx Le noeud courant
 * @return Retourne vrai si le noeud est sous une abstraction et faux dans l'autre cas.
 */
private boolean underAbs(RuleContext ctx) {
    RuleContext parent = ctx.parent;

    if (parent == null) {
        return false;
    }

    while (parent.getParent() != null) {
        if (parent instanceof LambdaParser.AbstractionContext) {
            return true;
        }
        parent = parent.parent;
    }
    return false;
}
项目：kalang    文件：AstBuilderFactory.java    
public static AstBuilder createAstBuilder(CompilationUnit source,TokenStream tokens){
    KalangParser p = new KalangParser(tokens);
    AstBuilder sp = new AstBuilder(source, p);
    p.setErrorHandler(new DefaultErrorStrategy() {

        @Override
        public void reportError(Parser recognizer, RecognitionException e) {
            String msg = AntlrErrorString.exceptionString(recognizer, e);
            Token end = e.getOffendingToken();
            Token start;
            RuleContext ctx = e.getCtx();
            if(ctx instanceof ParserRuleContext){
                start = ((ParserRuleContext) ctx).getStart();
            }else{
                start = end;
            }
            sp.getDiagnosisReporter().report(Diagnosis.Kind.ERROR, msg,start,end);
        }
    });
    return sp;
}
项目：protobuf-jetbrains-plugin    文件：ProtoParserDefinition.java    
@Override
public String formatMessage(SyntaxError error) {
    RecognitionException exception = error.getException();
    if (exception instanceof InputMismatchException) {
        InputMismatchException mismatchException = (InputMismatchException) exception;
        RuleContext ctx = mismatchException.getCtx();
        int ruleIndex = ctx.getRuleIndex();
        switch (ruleIndex) {
            case ProtoParser.RULE_ident:
                return ProtostuffBundle.message("error.expected.identifier");
            default:
                break;
        }
    }
    return super.formatMessage(error);
}
项目：antsdb    文件：Select_or_valuesGenerator.java    
private static ExprContext rewriteHaving(GeneratorContext ctx, Planner planner, ExprContext expr) {
    ExprContext rewritten = new ExprContext(expr.getParent(), expr.invokingState);
    for (ParseTree i:expr.children) {
        if (i instanceof Expr_functionContext) {
            rewritten.addChild(rewriteHaving(ctx, planner, (Expr_functionContext)i));
        }
        else if (i instanceof ExprContext) {
            rewritten.addChild(rewriteHaving(ctx, planner, (ExprContext)i));
        }
        else if (i instanceof RuleContext) {
            rewritten.addChild((RuleContext)i);
        }
        else if (i instanceof TerminalNode) {
            rewritten.addChild((TerminalNode)i);
        }
        else {
            throw new CodingError();
        }
    }
    return rewritten;
}
项目：antsdb    文件：Select_or_valuesGenerator.java    
private static RuleContext rewriteHaving(GeneratorContext ctx, Planner planner, Expr_functionContext rule) {
    String funcname = rule.function_name().getText().toLowerCase();
    if (_aggregates.contains(funcname)) {
        OutputField field = findExisting(ctx, planner, rule);
        if (field != null) {
            return createColumnName_(rule, field);
        }
        else {
            Operator expr = ExprGenerator.gen(ctx, planner, (ExprContext)rule.getParent());
            field = planner.addOutputField("*" + planner.getOutputFields().size(), expr);
            return createColumnName_(rule, field);
        }
    }
    else {
        return rule;
    }
}
项目：clarpse    文件：GoLangTreeListener.java    
/**
 * Searches the children of the given context for a context of the given clazz
 * type and returns its Text Value. If there are multiple relevant child nodes,
 * we will return the text value for one of them at random.
 */
public String getChildContextText(RuleContext ctx) {

    if (ctx == null) {
        return "";
    }
    if (ctx instanceof TypeNameContext) {
        return ctx.getText();
    }

    String s = "";
    for (int i = 0; i < ctx.getChildCount(); i++) {
        if (!(ctx.getChild(i) instanceof TerminalNodeImpl)) {
            try {
                String t = getChildContextText((RuleContext) ctx.getChild(i));
                if (!t.isEmpty()) {
                    s += t + ",";
                }
            } catch (Exception e) {
                // do nothing
            }
        }
    }
    return s.replaceAll(",$", "");
}
项目：development    文件：FWPolicyLexer.java    
@Override
public void action(RuleContext _localctx, int ruleIndex, int actionIndex) {
    switch (ruleIndex) {
    case 6:
        MINUS_action((RuleContext) _localctx, actionIndex);
        break;

    case 7:
        SLASH_action((RuleContext) _localctx, actionIndex);
        break;

    case 8:
        LPAR_action((RuleContext) _localctx, actionIndex);
        break;

    case 9:
        RPAR_action((RuleContext) _localctx, actionIndex);
        break;

    case 19:
        WS_action((RuleContext) _localctx, actionIndex);
        break;
    }
}
项目：stpnb    文件：BraceMatchingVisitor.java    
@Override
public Object visitPairedTag(StpParser.PairedTagContext ctx) {
    RuleContext tag = (RuleContext) ctx.getChild(0);
    Token firstOTag =  searchTokenFromHead(tag, SilverstripeTokenId.OTAG);
    Token firstCTag = searchTokenFromHead(tag, SilverstripeTokenId.CTAG);
    Token secondOTag = searchTokenFromTail(tag, SilverstripeTokenId.OTAG);
    Token secondCTag = searchTokenFromTail(tag, SilverstripeTokenId.CTAG);
    boolean offsetMatched = (position >= firstOTag.getStartIndex() && position <= firstCTag.getStopIndex()) ||
            (position >= secondOTag.getStartIndex() && position <= secondCTag.getStopIndex());
    if(offsetMatched) {
        matchedRegions.add(firstOTag.getStartIndex());
        matchedRegions.add(firstCTag.getStopIndex()+1);
        matchedRegions.add(secondOTag.getStartIndex());
        matchedRegions.add(secondCTag.getStopIndex()+1);
    }
    return super.visitPairedTag(ctx);
}
项目：hl7-mapping-validator    文件：JavascriptCodeGenerator.java    
private String translateToAssertionsPushCalls(SingleExpressionContext assertionStatementLeftHandSide, RuleContext ctx) {
    String translatedText = ctx.getText();
    String xpath = "//singleExpression";
    ParseTree parseTree = (ParseTree) ctx;

    translatedText = translateAssertionFunctionShortcuts(ctx, false);

    ParseTreePattern assertionExpressionPattern = this.parser.compileParseTreePattern(
            "<assertionOperator> <singleExpression>",
            HL7MappingValidatorParser.RULE_singleExpression);
    List<ParseTreeMatch> assertionExpressionMatches = assertionExpressionPattern.findAll(parseTree, xpath);
    for (ParseTreeMatch match : assertionExpressionMatches) {
        AssertionOperatorContext operator = (AssertionOperatorContext) match.get("assertionOperator");
        SingleExpressionContext assertionStatementRightHandSide = (SingleExpressionContext) match.get("singleExpression");
        String translatedFunctionCall = translateToAssertionsPushCall(assertionStatementLeftHandSide, operator, assertionStatementRightHandSide);
        String matchTextTranslated = translateAssertionFunctionShortcuts((RuleContext) match.getTree(), false);
        translatedText = translatedText.replace(matchTextTranslated, translatedFunctionCall);
    }

    return translatedText;
}
项目：trygve    文件：Pass3Listener.java    
private <ExprType> Declaration findProperMethodScopeAround(final ExprType ctxExpr, final RuleContext ctxParent, final Token ctxGetStart) {
    Declaration retval = null;
    RuleContext executionContext = ctxParent;
    while ((executionContext instanceof ProgramContext) == false) {
        if (executionContext instanceof Method_declContext) {
            final Method_declContext mdeclContext = (Method_declContext)executionContext;
            final Method_decl_hookContext hookContext = mdeclContext.method_decl_hook();
            final Method_signatureContext signatureCtx = hookContext.method_signature();
            final String methodName = signatureCtx.method_name().getText();
            final MethodDeclaration methodDecl = currentScope_.lookupMethodDeclarationRecursive(methodName, null, true);
            retval = methodDecl;
            break;
        } else if (executionContext instanceof Role_bodyContext) {
            break;
        } else if (executionContext instanceof Role_declContext) {
            break;
        } else if (executionContext instanceof Class_bodyContext) {
            break;
        } else if (executionContext instanceof Type_declarationContext) {
            break;
        }
        executionContext = executionContext.parent;
    }
    return retval;
}
项目：goworks    文件：GrammarIndentTask.java    
@Override
@RuleDependencies({
    @RuleDependency(recognizer=GrammarParser.class, rule=GrammarParser.RULE_modeSpec, version=3, dependents=Dependents.PARENTS),
    @RuleDependency(recognizer=GrammarParser.class, rule=GrammarParser.RULE_ruleSpec, version=3, dependents=Dependents.PARENTS),
})
public Tuple2<? extends ParseTree, Integer> visitModeSpec(ModeSpecContext ctx) {
    // use the preceeding rule (if any), otherwise relative to mode
    for (int i = priorSiblings.size() - 2; i >= 0; i--) {
        ParseTree sibling = priorSiblings.get(i);
        if (!(sibling instanceof RuleNode)) {
            continue;
        }

        RuleContext context = ((RuleNode)sibling).getRuleContext();
        if (context.getRuleIndex() == GrammarParser.RULE_ruleSpec) {
            return Tuple.create(context, 0);
        }
    }

    return Tuple.create(ctx, getCodeStyle().getIndentSize());
}
项目：goworks    文件：GoCompletionQuery.java    
public static RuleContext getTopContext(Parser parser, RuleContext context, IntervalSet values, boolean checkTop) {
    if (checkTop && context instanceof ParserRuleContext) {
        if (values.contains(context.getRuleIndex())) {
            return context;
        }
    }

    if (context.isEmpty()) {
        return null;
    }

    if (values.contains(parser.getATN().states.get(context.invokingState).ruleIndex)) {
        return context.parent;
    }

    return getTopContext(parser, context.parent, values, false);
}
项目：goworks    文件：AbstractForestParser.java    
@Override
public Map<RuleContext, CaretReachedException> getParseTrees(TParser parser) {
    List<MultipleDecisionData> potentialAlternatives = new ArrayList<>();
    IntegerList currentPath = new IntegerList();
    Map<RuleContext, CaretReachedException> results = new IdentityHashMap<>();
    // make sure the token stream is initialized before getting the index
    parser.getInputStream().LA(1);
    int initialToken = parser.getInputStream().index();
    while (true) {
        parser.getInputStream().seek(initialToken);
        tryParse(parser, potentialAlternatives, currentPath, results);
        if (!incrementCurrentPath(potentialAlternatives, currentPath)) {
            break;
        }
    }

    LOGGER.log(Level.FINE, "Forest parser constructed {0} parse trees.", results.size());

    if (LOGGER.isLoggable(Level.FINEST)) {
        for (Map.Entry<RuleContext, CaretReachedException> entry : results.entrySet()) {
            LOGGER.log(Level.FINEST, entry.getKey().toStringTree(parser instanceof Parser ? (Parser)parser : null));
        }
    }

    return results;
}
项目：goworks    文件：ParseTrees.java    
public static Interval getSourceInterval(@NonNull ParseTree context) {
    Parameters.notNull("context", context);

    if (context instanceof TerminalNode) {
        TerminalNode terminalNode = (TerminalNode)context;
        Token token = terminalNode.getSymbol();
        return new Interval(token.getStartIndex(), token.getStopIndex());
    } else if (context instanceof RuleNode) {
        RuleNode ruleNode = (RuleNode)context;
        RuleContext ruleContext = ruleNode.getRuleContext();
        if (ruleContext instanceof ParserRuleContext) {
            return getSourceInterval((ParserRuleContext)ruleContext);
        } else {
            Token startSymbol = getStartSymbol(context);
            Token stopSymbol = getStopSymbol(context);
            if (startSymbol == null || stopSymbol == null) {
                return Interval.INVALID;
            }

            return new Interval(startSymbol.getStartIndex(), stopSymbol.getStopIndex());
        }
    } else {
        return Interval.INVALID;
    }
}
项目：goworks    文件：ParseTrees.java    
public static Token getStartSymbol(ParseTree context) {
    TerminalNode node = getStartNode(context);
    if (node != null) {
        return node.getSymbol();
    }

    if (!(context instanceof RuleNode)) {
        return null;
    }

    RuleContext ruleContext = ((RuleNode)context).getRuleContext();
    if (ruleContext instanceof ParserRuleContext) {
        return ((ParserRuleContext)ruleContext).getStart();
    }

    return null;
}
项目：goworks    文件：ParseTrees.java    
@CheckForNull
public static <ContextClass> ContextClass findAncestor(@NonNull ParseTree tree, @NonNull Class<ContextClass> nodeType) {
    for (ParseTree current = tree; current != null; current = current.getParent()) {
        if (!(current instanceof RuleNode)) {
            continue;
        }

        RuleNode ruleNode = (RuleNode)current;
        RuleContext ruleContext = ruleNode.getRuleContext();
        if (nodeType.isInstance(ruleContext)) {
            return nodeType.cast(ruleContext);
        }
    }

    return null;
}
项目：Tnsnames_checker    文件：tnsnamesInterfaceListener.java    
@Override
public void enterBeq_beq(tnsnamesParser.Beq_beqContext ctx)
{
    RuleContext parentCtx = ctx.getParent();
    String parentRule = this.ruleNames[parentCtx.getRuleIndex()];

    // Check for redefinitions. BEQ.
    if (parentRule == "beq_parameter")
    {
        checkForRedefinition("PROTOCOL", firstBEQ_ProtocolLine, this.lineNumber);
    }

    // Check for redefinitions. ARGS.
    if (parentRule == "bad_address")
    {
        checkForRedefinition("PROTOCOL", firstBAD_ProtocolLine, this.lineNumber);
    }
}
项目：Tnsnames_checker    文件：tnsnamesInterfaceListener.java    
@Override
public void enterD_recv_buf(tnsnamesParser.D_recv_bufContext ctx)
{
    // Who is my parent rule?
    RuleContext parentCtx = ctx.getParent();
    String parentRule = this.ruleNames[parentCtx.getRuleIndex()];

    // Check for redefinitions, DESCRIPTION.
    if (parentRule == "d_parameter")
    {
        checkForRedefinition("RECV_BUF_SIZE", firstRecvBufLine, this.lineNumber);
    }

    // Check for redefinitions, DESCRIPTION.
    if (parentRule == "a_parameter")
    {
        checkForRedefinition("RECV_BUF_SIZE", firstA_RecvBufLine, this.lineNumber);
    }
}
项目：Tnsnames_checker    文件：tnsnamesInterfaceListener.java    
@Override
public void enterD_send_buf(tnsnamesParser.D_send_bufContext ctx)
{
    // Who is my parent rule?
    RuleContext parentCtx = ctx.getParent();
    String parentRule = this.ruleNames[parentCtx.getRuleIndex()];

    // Check for redefinitions, DESCRIPTION.
    if (parentRule == "d_parameter")
    {
        checkForRedefinition("SEND_BUF_SIZE", firstSendBufLine, this.lineNumber);
    }

    // Check for redefinitions, DESCRIPTION.
    if (parentRule == "a_parameter")
    {
        checkForRedefinition("SEND_BUF_SIZE", firstA_SendBufLine, this.lineNumber);
    }
}
项目：Scratch-ApuC    文件：ParserATNSimulator.java    
@NotNull
protected ATNConfigSet computeStartState(@NotNull ATNState p,
                                      @Nullable RuleContext ctx,
                                      boolean fullCtx)
{
    // always at least the implicit call to start rule
    PredictionContext initialContext = PredictionContext.fromRuleContext(atn, ctx);
    ATNConfigSet configs = new ATNConfigSet(fullCtx);

    for (int i=0; i<p.getNumberOfTransitions(); i++) {
        ATNState target = p.transition(i).target;
        ATNConfig c = new ATNConfig(target, i+1, initialContext);
        Set<ATNConfig> closureBusy = new HashSet<ATNConfig>();
        closure(c, configs, closureBusy, true, fullCtx, false);
    }

    return configs;
}
项目：antlrworks2    文件：GrammarIndentTask.java    
@Override
@RuleDependencies({
    @RuleDependency(recognizer=GrammarParser.class, rule=GrammarParser.RULE_modeSpec, version=3, dependents=Dependents.PARENTS),
    @RuleDependency(recognizer=GrammarParser.class, rule=GrammarParser.RULE_ruleSpec, version=3, dependents=Dependents.PARENTS),
})
public Tuple2<? extends ParseTree, Integer> visitModeSpec(ModeSpecContext ctx) {
    // use the preceeding rule (if any), otherwise relative to mode
    for (int i = priorSiblings.size() - 2; i >= 0; i--) {
        ParseTree sibling = priorSiblings.get(i);
        if (!(sibling instanceof RuleNode)) {
            continue;
        }

        RuleContext context = ((RuleNode)sibling).getRuleContext();
        if (context.getRuleIndex() == GrammarParser.RULE_ruleSpec) {
            return Tuple.create(context, 0);
        }
    }

    return Tuple.create(ctx, getCodeStyle().getIndentSize());
}
项目：antlrworks2    文件：AbstractForestParser.java    
@Override
public Map<RuleContext, CaretReachedException> getParseTrees(TParser parser) {
    List<MultipleDecisionData> potentialAlternatives = new ArrayList<>();
    IntegerList currentPath = new IntegerList();
    Map<RuleContext, CaretReachedException> results = new IdentityHashMap<>();
    // make sure the token stream is initialized before getting the index
    parser.getInputStream().LA(1);
    int initialToken = parser.getInputStream().index();
    while (true) {
        parser.getInputStream().seek(initialToken);
        tryParse(parser, potentialAlternatives, currentPath, results);
        if (!incrementCurrentPath(potentialAlternatives, currentPath)) {
            break;
        }
    }

    LOGGER.log(Level.FINE, "Forest parser constructed {0} parse trees.", results.size());

    if (LOGGER.isLoggable(Level.FINEST)) {
        for (Map.Entry<RuleContext, CaretReachedException> entry : results.entrySet()) {
            LOGGER.log(Level.FINEST, entry.getKey().toStringTree(parser instanceof Parser ? (Parser)parser : null));
        }
    }

    return results;
}
项目：antlrworks2    文件：ParseTrees.java    
public static Interval getSourceInterval(@NonNull ParseTree context) {
    Parameters.notNull("context", context);

    if (context instanceof TerminalNode) {
        TerminalNode terminalNode = (TerminalNode)context;
        Token token = terminalNode.getSymbol();
        return new Interval(token.getStartIndex(), token.getStopIndex());
    } else if (context instanceof RuleNode) {
        RuleNode ruleNode = (RuleNode)context;
        RuleContext ruleContext = ruleNode.getRuleContext();
        if (ruleContext instanceof ParserRuleContext) {
            return getSourceInterval((ParserRuleContext)ruleContext);
        } else {
            Token startSymbol = getStartSymbol(context);
            Token stopSymbol = getStopSymbol(context);
            if (startSymbol == null || stopSymbol == null) {
                return Interval.INVALID;
            }

            return new Interval(startSymbol.getStartIndex(), stopSymbol.getStopIndex());
        }
    } else {
        return Interval.INVALID;
    }
}
项目：antlrworks2    文件：ParseTrees.java    
public static Token getStartSymbol(ParseTree context) {
    TerminalNode node = getStartNode(context);
    if (node != null) {
        return node.getSymbol();
    }

    if (!(context instanceof RuleNode)) {
        return null;
    }

    RuleContext ruleContext = ((RuleNode)context).getRuleContext();
    if (ruleContext instanceof ParserRuleContext) {
        return ((ParserRuleContext)ruleContext).getStart();
    }

    return null;
}
项目：antlrworks2    文件：ParseTrees.java    
@CheckForNull
public static <ContextClass> ContextClass findAncestor(@NonNull ParseTree tree, @NonNull Class<ContextClass> nodeType) {
    for (ParseTree current = tree; current != null; current = current.getParent()) {
        if (!(current instanceof RuleNode)) {
            continue;
        }

        RuleNode ruleNode = (RuleNode)current;
        RuleContext ruleContext = ruleNode.getRuleContext();
        if (nodeType.isInstance(ruleContext)) {
            return nodeType.cast(ruleContext);
        }
    }

    return null;
}
项目：oscm-app    文件：FWPolicyLexer.java    
private void RPAR_action(RuleContext _localctx, int actionIndex) {
    switch (actionIndex) {
    case 3:
        _channel = HIDDEN;
        break;
    }
}
项目：oscm-app    文件：FWPolicyLexer.java    
private void WS_action(RuleContext _localctx, int actionIndex) {
    switch (actionIndex) {
    case 4:
        _channel = HIDDEN;
        break;
    }
}
项目：oscm-app    文件：FWPolicyLexer.java    
private void SLASH_action(RuleContext _localctx, int actionIndex) {
    switch (actionIndex) {
    case 1:
        _channel = HIDDEN;
        break;
    }
}
项目：oscm-app    文件：FWPolicyLexer.java    
private void LPAR_action(RuleContext _localctx, int actionIndex) {
    switch (actionIndex) {
    case 2:
        _channel = HIDDEN;
        break;
    }
}
项目：oscm-app    文件：FWPolicyLexer.java    
private void MINUS_action(RuleContext _localctx, int actionIndex) {
    switch (actionIndex) {
    case 0:
        _channel = HIDDEN;
        break;
    }
}
项目：thorium-lang    文件：ParseTree.java    
public ParseTree producesSyntaxTree(String expected) {
    try {
        RuleContext ruleContext = (RuleContext) method.invoke(parser);
        String actual = ruleContext.toStringTree(parser);

        assertThat(actual)
                .named(code)
                .isEqualTo(expected);
    } catch (IllegalAccessException | InvocationTargetException e) {
        throw new RuntimeException(e);
    }

    return this;
}
项目：oscm    文件：FWPolicyLexer.java    
private void RPAR_action(RuleContext _localctx, int actionIndex) {
    switch (actionIndex) {
    case 3:
        _channel = HIDDEN;
        break;
    }
}
项目：oscm    文件：FWPolicyLexer.java    
private void WS_action(RuleContext _localctx, int actionIndex) {
    switch (actionIndex) {
    case 4:
        _channel = HIDDEN;
        break;
    }
}
项目：oscm    文件：FWPolicyLexer.java    
private void SLASH_action(RuleContext _localctx, int actionIndex) {
    switch (actionIndex) {
    case 1:
        _channel = HIDDEN;
        break;
    }
}
项目：oscm    文件：FWPolicyLexer.java    
private void LPAR_action(RuleContext _localctx, int actionIndex) {
    switch (actionIndex) {
    case 2:
        _channel = HIDDEN;
        break;
    }
}
项目：oscm    文件：FWPolicyLexer.java    
private void MINUS_action(RuleContext _localctx, int actionIndex) {
    switch (actionIndex) {
    case 0:
        _channel = HIDDEN;
        break;
    }
}
项目：beaker-notebook-archive    文件：GroovyNodeCompletion.java    
private RuleContext findParentNode(RuleContext ctx, Class<?> classtype) {
  RuleContext p = ctx.getParent();
  while(p!=null) {
    if(p.getClass().equals(classtype)) {
      return p;
    }
    p = p.getParent();
  }
  return null;
}
项目：beaker-notebook-archive    文件：GroovyNodeCompletion.java    
private ParseTree findLeftSibling(RuleContext ctx) {
  RuleContext p = ctx.getParent();
  if(p!=null) {
    for(int i=0; i<p.getChildCount(); i++) {
      if(p.getChild(i).equals(ctx)) {
        if(i>0)
          return p.getChild(i-1);
        break;
      }
    }
  }
  return null;
}