Examples with NoViableAltException org.antlr.runtime.NoViableAltException used on opensource projects

Example 56 with NoViableAltException

use of org.antlr.runtime.NoViableAltException in project drools by kiegroup.

the class DSLMapParser method key_sentence.

// $ANTLR start "key_sentence"
// src/main/resources/org/drools/compiler/lang/dsl/DSLMap.g:154:1: key_sentence : ( variable_definition |cb= key_chunk -> VT_LITERAL[$cb.start, text] );
public final DSLMapParser.key_sentence_return key_sentence() throws RecognitionException {
    DSLMapParser.key_sentence_return retval = new DSLMapParser.key_sentence_return();
    retval.start = input.LT(1);
    Object root_0 = null;
    ParserRuleReturnScope cb = null;
    ParserRuleReturnScope variable_definition16 = null;
    RewriteRuleSubtreeStream stream_key_chunk = new RewriteRuleSubtreeStream(adaptor, "rule key_chunk");
    String text = "";
    try {
        // src/main/resources/org/drools/compiler/lang/dsl/DSLMap.g:158:5: ( variable_definition |cb= key_chunk -> VT_LITERAL[$cb.start, text] )
        int alt9 = 2;
        int LA9_0 = input.LA(1);
        if ((LA9_0 == LEFT_CURLY)) {
            alt9 = 1;
        } else if ((LA9_0 == COLON || (LA9_0 >= LEFT_SQUARE && LA9_0 <= LITERAL) || LA9_0 == RIGHT_SQUARE)) {
            alt9 = 2;
        } else {
            if (state.backtracking > 0) {
                state.failed = true;
                return retval;
            }
            NoViableAltException nvae = new NoViableAltException("", 9, 0, input);
            throw nvae;
        }
        switch(alt9) {
            case 1:
                // src/main/resources/org/drools/compiler/lang/dsl/DSLMap.g:158:7: variable_definition
                {
                    root_0 = (Object) adaptor.nil();
                    pushFollow(FOLLOW_variable_definition_in_key_sentence608);
                    variable_definition16 = variable_definition();
                    state._fsp--;
                    if (state.failed)
                        return retval;
                    if (state.backtracking == 0)
                        adaptor.addChild(root_0, variable_definition16.getTree());
                }
                break;
            case 2:
                // src/main/resources/org/drools/compiler/lang/dsl/DSLMap.g:159:7: cb= key_chunk
                {
                    pushFollow(FOLLOW_key_chunk_in_key_sentence618);
                    cb = key_chunk();
                    state._fsp--;
                    if (state.failed)
                        return retval;
                    if (state.backtracking == 0)
                        stream_key_chunk.add(cb.getTree());
                    if (state.backtracking == 0) {
                        text = (cb != null ? input.toString(cb.start, cb.stop) : null);
                    }
                    // wildcard labels:
                    if (state.backtracking == 0) {
                        retval.tree = root_0;
                        RewriteRuleSubtreeStream stream_retval = new RewriteRuleSubtreeStream(adaptor, "rule retval", retval != null ? retval.getTree() : null);
                        root_0 = (Object) adaptor.nil();
                        // 160:5: -> VT_LITERAL[$cb.start, text]
                        {
                            adaptor.addChild(root_0, (Object) adaptor.create(VT_LITERAL, (cb != null ? (cb.start) : null), text));
                        }
                        retval.tree = root_0;
                    }
                }
                break;
        }
        retval.stop = input.LT(-1);
        if (state.backtracking == 0) {
            retval.tree = (Object) adaptor.rulePostProcessing(root_0);
            adaptor.setTokenBoundaries(retval.tree, retval.start, retval.stop);
        }
    } catch (RecognitionException re) {
        reportError(re);
        recover(input, re);
        retval.tree = (Object) adaptor.errorNode(input, retval.start, input.LT(-1), re);
    } finally {
    // do for sure before leaving
    }
    return retval;
}

Example 57 with NoViableAltException

use of org.antlr.runtime.NoViableAltException in project drools by kiegroup.

the class DroolsParserExceptionFactory method createErrorMessage.

/**
 * This will take a RecognitionException, and create a sensible error
 * message out of it
 */
private List<String> createErrorMessage(RecognitionException e) {
    List<String> codeAndMessage = new ArrayList<String>(2);
    String message;
    if (e instanceof MismatchedTokenException) {
        MismatchedTokenException mte = (MismatchedTokenException) e;
        String expecting = mte instanceof DroolsMismatchedTokenException ? ((DroolsMismatchedTokenException) mte).getTokenText() : getBetterToken(mte.expecting);
        if (tokenNames != null && mte.expecting >= 0 && mte.expecting < tokenNames.length) {
            message = String.format(MISMATCHED_TOKEN_MESSAGE_COMPLETE, e.line, e.charPositionInLine, getBetterToken(e.token), expecting, formatParserLocation());
            codeAndMessage.add(message);
            codeAndMessage.add("ERR 102");
        } else {
            message = String.format(MISMATCHED_TOKEN_MESSAGE_PART, e.line, e.charPositionInLine, getBetterToken(e.token), formatParserLocation());
            codeAndMessage.add(message);
            codeAndMessage.add("ERR 102");
        }
    } else if (e instanceof MismatchedTreeNodeException) {
        MismatchedTreeNodeException mtne = (MismatchedTreeNodeException) e;
        if (mtne.expecting >= 0 && mtne.expecting < tokenNames.length) {
            message = String.format(MISMATCHED_TREE_NODE_MESSAGE_COMPLETE, e.line, e.charPositionInLine, getBetterToken(e.token), getBetterToken(mtne.expecting), formatParserLocation());
            codeAndMessage.add(message);
            codeAndMessage.add("ERR 106");
        } else {
            message = String.format(MISMATCHED_TREE_NODE_MESSAGE_PART, e.line, e.charPositionInLine, getBetterToken(e.token), formatParserLocation());
            codeAndMessage.add(message);
            codeAndMessage.add("ERR 106");
        }
    } else if (e instanceof NoViableAltException) {
        // NoViableAltException nvae = (NoViableAltException) e;
        message = String.format(NO_VIABLE_ALT_MESSAGE, e.line, e.charPositionInLine, getBetterToken(e.token), formatParserLocation());
        codeAndMessage.add(message);
        codeAndMessage.add("ERR 101");
    } else if (e instanceof EarlyExitException) {
        // EarlyExitException eee = (EarlyExitException) e;
        message = String.format(EARLY_EXIT_MESSAGE, e.line, e.charPositionInLine, getBetterToken(e.token), formatParserLocation());
        codeAndMessage.add(message);
        codeAndMessage.add("ERR 105");
    } else if (e instanceof MismatchedSetException) {
        MismatchedSetException mse = (MismatchedSetException) e;
        String expected = expectedTokensAsString(mse.expecting);
        message = String.format(MISMATCHED_SET_MESSAGE, e.line, e.charPositionInLine, getBetterToken(e.token), expected, formatParserLocation());
        codeAndMessage.add(message);
        codeAndMessage.add("ERR 107");
    } else if (e instanceof DroolsMismatchedSetException) {
        DroolsMismatchedSetException mse = (DroolsMismatchedSetException) e;
        String expected = Arrays.asList(mse.getTokenText()).toString();
        message = String.format(MISMATCHED_SET_MESSAGE, e.line, e.charPositionInLine, getBetterToken(e.token), expected, formatParserLocation());
        codeAndMessage.add(message);
        codeAndMessage.add("ERR 107");
    } else if (e instanceof MismatchedNotSetException) {
        MismatchedNotSetException mse = (MismatchedNotSetException) e;
        String expected = expectedTokensAsString(mse.expecting);
        message = String.format(MISMATCHED_NOT_SET_MESSAGE, e.line, e.charPositionInLine, getBetterToken(e.token), expected, formatParserLocation());
        codeAndMessage.add(message);
        codeAndMessage.add("ERR 108");
    } else if (e instanceof FailedPredicateException) {
        FailedPredicateException fpe = (FailedPredicateException) e;
        message = String.format(FAILED_PREDICATE_MESSAGE, e.line, e.charPositionInLine, fpe.ruleName, fpe.predicateText, formatParserLocation());
        codeAndMessage.add(message);
        codeAndMessage.add("ERR 103");
    }
    if (codeAndMessage.get(0).length() == 0) {
        codeAndMessage.add("?????");
    }
    return codeAndMessage;
}