Examples with BaseDescr org.drools.drl.ast.descr.BaseDescr used on opensource projects

Example 76 with BaseDescr

use of org.drools.drl.ast.descr.BaseDescr in project drools by kiegroup.

the class DRL6StrictParser method lhsParen.

/**
 * lhsParen := LEFT_PAREN lhsOr RIGHT_PAREN
 *
 * @param ce
 * @return
 * @throws org.antlr.runtime.RecognitionException
 */
private BaseDescr lhsParen(CEDescrBuilder<?, ?> ce, boolean allowOr) throws RecognitionException {
    match(input, DRL6Lexer.LEFT_PAREN, null, null, DroolsEditorType.SYMBOL);
    if (state.failed)
        return null;
    if (state.backtracking == 0 && input.LA(1) != DRL6Lexer.EOF) {
        helper.emit(Location.LOCATION_LHS_BEGIN_OF_CONDITION);
    }
    BaseDescr descr = lhsOr(ce, allowOr);
    if (state.failed)
        return null;
    match(input, DRL6Lexer.RIGHT_PAREN, null, null, DroolsEditorType.SYMBOL);
    if (state.failed)
        return null;
    return descr;
}

Example 77 with BaseDescr

use of org.drools.drl.ast.descr.BaseDescr in project drools by kiegroup.

the class DRL5Parser method fromAccumulate.

/**
 * fromAccumulate := ACCUMULATE LEFT_PAREN lhsAnd COMMA
 *                   ( INIT chunk_(_) COMMA ACTION chunk_(_) COMMA
 *                     ( REVERSE chunk_(_) COMMA)? RESULT chunk_(_)
 *                   | accumulateFunction
 *                   ) RIGHT_PAREN
 *
 * @param pattern
 * @throws RecognitionException
 */
private void fromAccumulate(PatternDescrBuilder<?> pattern) throws RecognitionException {
    AccumulateDescrBuilder<?> accumulate = helper.start(pattern, AccumulateDescrBuilder.class, null);
    try {
        match(input, DRL5Lexer.ID, DroolsSoftKeywords.ACCUMULATE, null, DroolsEditorType.KEYWORD);
        if (state.failed)
            return;
        if (state.backtracking == 0 && input.LA(1) != DRL5Lexer.EOF) {
            helper.emit(Location.LOCATION_LHS_FROM_ACCUMULATE);
        }
        match(input, DRL5Lexer.LEFT_PAREN, null, null, DroolsEditorType.SYMBOL);
        if (state.failed)
            return;
        CEDescrBuilder<?, AndDescr> source = accumulate.source();
        try {
            helper.start(source, CEDescrBuilder.class, null);
            lhsAnd(source, false);
            if (state.failed)
                return;
            if (source.getDescr() != null && source.getDescr() instanceof ConditionalElementDescr) {
                ConditionalElementDescr root = (ConditionalElementDescr) source.getDescr();
                BaseDescr[] descrs = root.getDescrs().toArray(new BaseDescr[root.getDescrs().size()]);
                root.getDescrs().clear();
                for (int i = 0; i < descrs.length; i++) {
                    root.addOrMerge(descrs[i]);
                }
            }
        } finally {
            helper.end(CEDescrBuilder.class, source);
        }
        if (input.LA(1) == DRL5Lexer.COMMA) {
            match(input, DRL5Lexer.COMMA, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return;
        }
        if (helper.validateIdentifierKey(DroolsSoftKeywords.INIT)) {
            // custom code, inline accumulate
            // initBlock
            match(input, DRL5Lexer.ID, DroolsSoftKeywords.INIT, null, DroolsEditorType.KEYWORD);
            if (state.failed)
                return;
            if (state.backtracking == 0 && input.LA(1) != DRL5Lexer.EOF) {
                helper.emit(Location.LOCATION_LHS_FROM_ACCUMULATE_INIT);
            }
            String init = chunk(DRL5Lexer.LEFT_PAREN, DRL5Lexer.RIGHT_PAREN, Location.LOCATION_LHS_FROM_ACCUMULATE_INIT_INSIDE);
            if (state.failed)
                return;
            if (state.backtracking == 0)
                accumulate.init(init);
            if (input.LA(1) == DRL5Lexer.COMMA) {
                match(input, DRL5Lexer.COMMA, null, null, DroolsEditorType.SYMBOL);
                if (state.failed)
                    return;
            }
            // actionBlock
            match(input, DRL5Lexer.ID, DroolsSoftKeywords.ACTION, null, DroolsEditorType.KEYWORD);
            if (state.failed)
                return;
            if (state.backtracking == 0 && input.LA(1) != DRL5Lexer.EOF) {
                helper.emit(Location.LOCATION_LHS_FROM_ACCUMULATE_ACTION);
            }
            String action = chunk(DRL5Lexer.LEFT_PAREN, DRL5Lexer.RIGHT_PAREN, Location.LOCATION_LHS_FROM_ACCUMULATE_ACTION_INSIDE);
            if (state.failed)
                return;
            if (state.backtracking == 0)
                accumulate.action(action);
            if (input.LA(1) == DRL5Lexer.COMMA) {
                match(input, DRL5Lexer.COMMA, null, null, DroolsEditorType.SYMBOL);
                if (state.failed)
                    return;
            }
            // reverseBlock
            if (helper.validateIdentifierKey(DroolsSoftKeywords.REVERSE)) {
                match(input, DRL5Lexer.ID, DroolsSoftKeywords.REVERSE, null, DroolsEditorType.KEYWORD);
                if (state.failed)
                    return;
                if (state.backtracking == 0 && input.LA(1) != DRL5Lexer.EOF) {
                    helper.emit(Location.LOCATION_LHS_FROM_ACCUMULATE_REVERSE);
                }
                String reverse = chunk(DRL5Lexer.LEFT_PAREN, DRL5Lexer.RIGHT_PAREN, Location.LOCATION_LHS_FROM_ACCUMULATE_REVERSE_INSIDE);
                if (state.failed)
                    return;
                if (state.backtracking == 0)
                    accumulate.reverse(reverse);
                if (input.LA(1) == DRL5Lexer.COMMA) {
                    match(input, DRL5Lexer.COMMA, null, null, DroolsEditorType.SYMBOL);
                    if (state.failed)
                        return;
                }
            }
            // resultBlock
            match(input, DRL5Lexer.ID, DroolsSoftKeywords.RESULT, null, DroolsEditorType.KEYWORD);
            if (state.failed)
                return;
            if (state.backtracking == 0 && input.LA(1) != DRL5Lexer.EOF) {
                helper.emit(Location.LOCATION_LHS_FROM_ACCUMULATE_RESULT);
            }
            String result = chunk(DRL5Lexer.LEFT_PAREN, DRL5Lexer.RIGHT_PAREN, Location.LOCATION_LHS_FROM_ACCUMULATE_RESULT_INSIDE);
            if (state.failed)
                return;
            if (state.backtracking == 0)
                accumulate.result(result);
        } else {
            // accumulate functions
            accumulateFunction(accumulate, false, null);
            if (state.failed)
                return;
        }
        match(input, DRL5Lexer.RIGHT_PAREN, null, null, DroolsEditorType.SYMBOL);
        if (state.failed)
            return;
    } finally {
        helper.end(AccumulateDescrBuilder.class, accumulate);
        if (state.backtracking == 0 && input.LA(1) != DRL5Lexer.EOF) {
            helper.emit(Location.LOCATION_LHS_BEGIN_OF_CONDITION);
        }
    }
}

Example 78 with BaseDescr

use of org.drools.drl.ast.descr.BaseDescr in project drools by kiegroup.

the class DRL5Parser method lhsAccumulate.

/**
 * lhsAccumulate := ACCUMULATE LEFT_PAREN lhsAnd (COMMA|SEMICOLON)
 *                      accumulateFunctionBinding (COMMA accumulateFunctionBinding)*
 *                      (SEMICOLON constraints)?
 *                  RIGHT_PAREN SEMICOLON?
 *
 * @param ce
 * @return
 * @throws RecognitionException
 */
private BaseDescr lhsAccumulate(PatternContainerDescrBuilder<?, ?> ce) throws RecognitionException {
    PatternDescrBuilder<?> pattern = null;
    BaseDescr result = null;
    pattern = helper.start((DescrBuilder<?, ?>) ce, PatternDescrBuilder.class, null);
    if (pattern != null) {
        result = pattern.getDescr();
    }
    try {
        if (state.backtracking == 0) {
            pattern.type("Object[]");
            pattern.isQuery(false);
        // might have to add the implicit bindings as well
        }
        AccumulateDescrBuilder<?> accumulate = helper.start(pattern, AccumulateDescrBuilder.class, null);
        try {
            match(input, DRL5Lexer.ID, DroolsSoftKeywords.ACCUMULATE, null, DroolsEditorType.KEYWORD);
            if (state.failed)
                return null;
            if (state.backtracking == 0 && input.LA(1) != DRL5Lexer.EOF) {
                helper.emit(Location.LOCATION_LHS_FROM_ACCUMULATE);
            }
            match(input, DRL5Lexer.LEFT_PAREN, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
            CEDescrBuilder<?, AndDescr> source = accumulate.source();
            try {
                helper.start(source, CEDescrBuilder.class, null);
                lhsAnd(source, false);
                if (state.failed)
                    return null;
                if (source.getDescr() != null && source.getDescr() instanceof ConditionalElementDescr) {
                    ConditionalElementDescr root = (ConditionalElementDescr) source.getDescr();
                    BaseDescr[] descrs = root.getDescrs().toArray(new BaseDescr[root.getDescrs().size()]);
                    root.getDescrs().clear();
                    for (int i = 0; i < descrs.length; i++) {
                        root.addOrMerge(descrs[i]);
                    }
                }
            } finally {
                helper.end(CEDescrBuilder.class, source);
            }
            if (input.LA(1) == DRL5Lexer.COMMA) {
                match(input, DRL5Lexer.COMMA, null, null, DroolsEditorType.SYMBOL);
                if (state.failed)
                    return null;
            } else if (input.LA(-1) != DRL5Lexer.SEMICOLON) {
                // lhsUnary will consume an optional SEMICOLON, so we need to check if it was consumed already
                // or if we must fail consuming it now
                match(input, DRL5Lexer.SEMICOLON, null, null, DroolsEditorType.SYMBOL);
                if (state.failed)
                    return null;
            }
            // accumulate functions
            accumulateFunctionBinding(accumulate);
            if (state.failed)
                return null;
            while (input.LA(1) == DRL5Lexer.COMMA) {
                match(input, DRL5Lexer.COMMA, null, null, DroolsEditorType.SYMBOL);
                if (state.failed)
                    return null;
                accumulateFunctionBinding(accumulate);
                if (state.failed)
                    return null;
            }
            if (input.LA(1) == DRL5Lexer.SEMICOLON) {
                match(input, DRL5Lexer.SEMICOLON, null, null, DroolsEditorType.SYMBOL);
                if (state.failed)
                    return null;
                constraints(pattern);
            }
            match(input, DRL5Lexer.RIGHT_PAREN, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
        } finally {
            helper.end(AccumulateDescrBuilder.class, accumulate);
            if (state.backtracking == 0 && input.LA(1) != DRL5Lexer.EOF) {
                helper.emit(Location.LOCATION_LHS_BEGIN_OF_CONDITION);
            }
        }
    } finally {
        helper.end(PatternDescrBuilder.class, pattern);
    }
    if (input.LA(1) == DRL5Lexer.SEMICOLON) {
        match(input, DRL5Lexer.SEMICOLON, null, null, DroolsEditorType.SYMBOL);
        if (state.failed)
            return null;
    }
    return result;
}

Example 79 with BaseDescr

use of org.drools.drl.ast.descr.BaseDescr in project drools by kiegroup.

the class DRL5Parser method lhsExpression.

/**
 * lhsExpression := lhsOr*
 *
 * @param lhs
 * @throws RecognitionException
 */
private void lhsExpression(CEDescrBuilder<?, AndDescr> lhs) throws RecognitionException {
    helper.start(lhs, CEDescrBuilder.class, null);
    if (state.backtracking == 0) {
        helper.emit(Location.LOCATION_LHS_BEGIN_OF_CONDITION);
    }
    try {
        while (input.LA(1) != DRL5Lexer.EOF && !helper.validateIdentifierKey(DroolsSoftKeywords.THEN) && !helper.validateIdentifierKey(DroolsSoftKeywords.END)) {
            if (state.backtracking == 0) {
                helper.emit(Location.LOCATION_LHS_BEGIN_OF_CONDITION);
            }
            lhsOr(lhs, true);
            if (lhs.getDescr() != null && lhs.getDescr() instanceof ConditionalElementDescr) {
                ConditionalElementDescr root = (ConditionalElementDescr) lhs.getDescr();
                BaseDescr[] descrs = root.getDescrs().toArray(new BaseDescr[root.getDescrs().size()]);
                root.getDescrs().clear();
                for (int i = 0; i < descrs.length; i++) {
                    root.addOrMerge(descrs[i]);
                }
            }
            if (state.failed)
                return;
        }
    } finally {
        helper.end(CEDescrBuilder.class, lhs);
    }
}

Example 80 with BaseDescr

use of org.drools.drl.ast.descr.BaseDescr in project drools by kiegroup.

the class DRL5Expressions method castExpression.

// $ANTLR end "unaryExpressionNotPlusMinus"
// $ANTLR start "castExpression"
// src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:520:1: castExpression : ( ( LEFT_PAREN primitiveType )=> LEFT_PAREN primitiveType RIGHT_PAREN expr= unaryExpression | ( LEFT_PAREN type )=> LEFT_PAREN type RIGHT_PAREN unaryExpressionNotPlusMinus );
public final void castExpression() throws RecognitionException {
    BaseDescr expr = null;
    try {
        // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:521:5: ( ( LEFT_PAREN primitiveType )=> LEFT_PAREN primitiveType RIGHT_PAREN expr= unaryExpression | ( LEFT_PAREN type )=> LEFT_PAREN type RIGHT_PAREN unaryExpressionNotPlusMinus )
        int alt54 = 2;
        int LA54_0 = input.LA(1);
        if ((LA54_0 == LEFT_PAREN)) {
            int LA54_1 = input.LA(2);
            if ((synpred17_DRL5Expressions())) {
                alt54 = 1;
            } else if ((synpred18_DRL5Expressions())) {
                alt54 = 2;
            } else {
                if (state.backtracking > 0) {
                    state.failed = true;
                    return;
                }
                int nvaeMark = input.mark();
                try {
                    input.consume();
                    NoViableAltException nvae = new NoViableAltException("", 54, 1, input);
                    throw nvae;
                } finally {
                    input.rewind(nvaeMark);
                }
            }
        } else {
            if (state.backtracking > 0) {
                state.failed = true;
                return;
            }
            NoViableAltException nvae = new NoViableAltException("", 54, 0, input);
            throw nvae;
        }
        switch(alt54) {
            case 1:
                // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:521:8: ( LEFT_PAREN primitiveType )=> LEFT_PAREN primitiveType RIGHT_PAREN expr= unaryExpression
                {
                    match(input, LEFT_PAREN, FOLLOW_LEFT_PAREN_in_castExpression2593);
                    if (state.failed)
                        return;
                    pushFollow(FOLLOW_primitiveType_in_castExpression2595);
                    primitiveType();
                    state._fsp--;
                    if (state.failed)
                        return;
                    match(input, RIGHT_PAREN, FOLLOW_RIGHT_PAREN_in_castExpression2597);
                    if (state.failed)
                        return;
                    pushFollow(FOLLOW_unaryExpression_in_castExpression2601);
                    expr = unaryExpression();
                    state._fsp--;
                    if (state.failed)
                        return;
                }
                break;
            case 2:
                // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:522:8: ( LEFT_PAREN type )=> LEFT_PAREN type RIGHT_PAREN unaryExpressionNotPlusMinus
                {
                    match(input, LEFT_PAREN, FOLLOW_LEFT_PAREN_in_castExpression2618);
                    if (state.failed)
                        return;
                    pushFollow(FOLLOW_type_in_castExpression2620);
                    type();
                    state._fsp--;
                    if (state.failed)
                        return;
                    match(input, RIGHT_PAREN, FOLLOW_RIGHT_PAREN_in_castExpression2622);
                    if (state.failed)
                        return;
                    pushFollow(FOLLOW_unaryExpressionNotPlusMinus_in_castExpression2624);
                    unaryExpressionNotPlusMinus();
                    state._fsp--;
                    if (state.failed)
                        return;
                }
                break;
        }
    } catch (RecognitionException re) {
        throw re;
    } finally {
    // do for sure before leaving
    }
}