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

Example 21 with BaseDescr

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

the class DRL6Expressions method conditionalOrExpression.

// $ANTLR end "annotationArray"
// $ANTLR start "conditionalOrExpression"
// src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:228:1: conditionalOrExpression returns [BaseDescr result] : left= conditionalAndExpression ( DOUBLE_PIPE (args= fullAnnotation[null] )? right= conditionalAndExpression )* ;
public final BaseDescr conditionalOrExpression() throws RecognitionException {
    BaseDescr result = null;
    BaseDescr left = null;
    AnnotationDescr args = null;
    BaseDescr right = null;
    try {
        // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:229:3: (left= conditionalAndExpression ( DOUBLE_PIPE (args= fullAnnotation[null] )? right= conditionalAndExpression )* )
        // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:229:5: left= conditionalAndExpression ( DOUBLE_PIPE (args= fullAnnotation[null] )? right= conditionalAndExpression )*
        {
            pushFollow(FOLLOW_conditionalAndExpression_in_conditionalOrExpression1192);
            left = conditionalAndExpression();
            state._fsp--;
            if (state.failed)
                return result;
            if (state.backtracking == 0) {
                if (buildDescr) {
                    result = left;
                }
            }
            // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:230:3: ( DOUBLE_PIPE (args= fullAnnotation[null] )? right= conditionalAndExpression )*
            loop25: while (true) {
                int alt25 = 2;
                int LA25_0 = input.LA(1);
                if ((LA25_0 == DOUBLE_PIPE)) {
                    alt25 = 1;
                }
                switch(alt25) {
                    case 1:
                        // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:230:5: DOUBLE_PIPE (args= fullAnnotation[null] )? right= conditionalAndExpression
                        {
                            match(input, DOUBLE_PIPE, FOLLOW_DOUBLE_PIPE_in_conditionalOrExpression1201);
                            if (state.failed)
                                return result;
                            if (state.backtracking == 0) {
                                if (isNotEOF())
                                    helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_OPERATOR);
                            }
                            // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:232:13: (args= fullAnnotation[null] )?
                            int alt24 = 2;
                            int LA24_0 = input.LA(1);
                            if ((LA24_0 == AT)) {
                                alt24 = 1;
                            }
                            switch(alt24) {
                                case 1:
                                    // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:232:13: args= fullAnnotation[null]
                                    {
                                        pushFollow(FOLLOW_fullAnnotation_in_conditionalOrExpression1223);
                                        args = fullAnnotation(null);
                                        state._fsp--;
                                        if (state.failed)
                                            return result;
                                    }
                                    break;
                            }
                            pushFollow(FOLLOW_conditionalAndExpression_in_conditionalOrExpression1229);
                            right = conditionalAndExpression();
                            state._fsp--;
                            if (state.failed)
                                return result;
                            if (state.backtracking == 0) {
                                if (buildDescr) {
                                    ConstraintConnectiveDescr descr = ConstraintConnectiveDescr.newOr();
                                    descr.addOrMerge(result);
                                    descr.addOrMerge(right);
                                    if (args != null) {
                                        descr.addAnnotation(args);
                                    }
                                    result = descr;
                                }
                            }
                        }
                        break;
                    default:
                        break loop25;
                }
            }
        }
    } catch (RecognitionException re) {
        throw re;
    } finally {
    // do for sure before leaving
    }
    return result;
}

Example 22 with BaseDescr

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

the class DRL6Expressions method inExpression.

// $ANTLR end "instanceOfExpression"
// $ANTLR start "inExpression"
// src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:325:1: inExpression returns [BaseDescr result] : left= relationalExpression ( ( not_key in_key )=> not_key in= in_key LEFT_PAREN e1= expression ( COMMA e2= expression )* RIGHT_PAREN |in= in_key LEFT_PAREN e1= expression ( COMMA e2= expression )* RIGHT_PAREN )? ;
public final BaseDescr inExpression() throws RecognitionException {
    BaseDescr result = null;
    BaseDescr left = null;
    ParserRuleReturnScope e1 = null;
    ParserRuleReturnScope e2 = null;
    ConstraintConnectiveDescr descr = null;
    BaseDescr leftDescr = null;
    BindingDescr binding = null;
    try {
        // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:328:3: (left= relationalExpression ( ( not_key in_key )=> not_key in= in_key LEFT_PAREN e1= expression ( COMMA e2= expression )* RIGHT_PAREN |in= in_key LEFT_PAREN e1= expression ( COMMA e2= expression )* RIGHT_PAREN )? )
        // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:328:5: left= relationalExpression ( ( not_key in_key )=> not_key in= in_key LEFT_PAREN e1= expression ( COMMA e2= expression )* RIGHT_PAREN |in= in_key LEFT_PAREN e1= expression ( COMMA e2= expression )* RIGHT_PAREN )?
        {
            pushFollow(FOLLOW_relationalExpression_in_inExpression1615);
            left = relationalExpression();
            state._fsp--;
            if (state.failed)
                return result;
            if (state.backtracking == 0) {
                if (buildDescr) {
                    result = left;
                }
                if (left instanceof BindingDescr) {
                    binding = (BindingDescr) left;
                    leftDescr = new AtomicExprDescr(binding.getExpression());
                } else {
                    leftDescr = left;
                }
            }
            // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:337:5: ( ( not_key in_key )=> not_key in= in_key LEFT_PAREN e1= expression ( COMMA e2= expression )* RIGHT_PAREN |in= in_key LEFT_PAREN e1= expression ( COMMA e2= expression )* RIGHT_PAREN )?
            int alt36 = 3;
            int LA36_0 = input.LA(1);
            if ((LA36_0 == ID)) {
                int LA36_1 = input.LA(2);
                if ((LA36_1 == ID)) {
                    int LA36_3 = input.LA(3);
                    if ((LA36_3 == LEFT_PAREN) && ((((helper.validateIdentifierKey(DroolsSoftKeywords.NOT))) && synpred8_DRL6Expressions()))) {
                        alt36 = 1;
                    }
                } else if ((LA36_1 == LEFT_PAREN) && (((helper.validateIdentifierKey(DroolsSoftKeywords.IN))))) {
                    alt36 = 2;
                }
            }
            switch(alt36) {
                case 1:
                    // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:337:6: ( not_key in_key )=> not_key in= in_key LEFT_PAREN e1= expression ( COMMA e2= expression )* RIGHT_PAREN
                    {
                        pushFollow(FOLLOW_not_key_in_inExpression1635);
                        not_key();
                        state._fsp--;
                        if (state.failed)
                            return result;
                        pushFollow(FOLLOW_in_key_in_inExpression1639);
                        in_key();
                        state._fsp--;
                        if (state.failed)
                            return result;
                        match(input, LEFT_PAREN, FOLLOW_LEFT_PAREN_in_inExpression1641);
                        if (state.failed)
                            return result;
                        if (state.backtracking == 0) {
                            helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_ARGUMENT);
                        }
                        pushFollow(FOLLOW_expression_in_inExpression1663);
                        e1 = expression();
                        state._fsp--;
                        if (state.failed)
                            return result;
                        if (state.backtracking == 0) {
                            descr = ConstraintConnectiveDescr.newAnd();
                            RelationalExprDescr rel = new RelationalExprDescr("!=", false, null, leftDescr, (e1 != null ? ((DRL6Expressions.expression_return) e1).result : null));
                            descr.addOrMerge(rel);
                            result = descr;
                        }
                        // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:345:7: ( COMMA e2= expression )*
                        loop34: while (true) {
                            int alt34 = 2;
                            int LA34_0 = input.LA(1);
                            if ((LA34_0 == COMMA)) {
                                alt34 = 1;
                            }
                            switch(alt34) {
                                case 1:
                                    // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:345:8: COMMA e2= expression
                                    {
                                        match(input, COMMA, FOLLOW_COMMA_in_inExpression1682);
                                        if (state.failed)
                                            return result;
                                        pushFollow(FOLLOW_expression_in_inExpression1686);
                                        e2 = expression();
                                        state._fsp--;
                                        if (state.failed)
                                            return result;
                                        if (state.backtracking == 0) {
                                            RelationalExprDescr rel = new RelationalExprDescr("!=", false, null, leftDescr, (e2 != null ? ((DRL6Expressions.expression_return) e2).result : null));
                                            descr.addOrMerge(rel);
                                        }
                                    }
                                    break;
                                default:
                                    break loop34;
                            }
                        }
                        match(input, RIGHT_PAREN, FOLLOW_RIGHT_PAREN_in_inExpression1707);
                        if (state.failed)
                            return result;
                        if (state.backtracking == 0) {
                            helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_END);
                        }
                    }
                    break;
                case 2:
                    // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:351:7: in= in_key LEFT_PAREN e1= expression ( COMMA e2= expression )* RIGHT_PAREN
                    {
                        pushFollow(FOLLOW_in_key_in_inExpression1723);
                        in_key();
                        state._fsp--;
                        if (state.failed)
                            return result;
                        match(input, LEFT_PAREN, FOLLOW_LEFT_PAREN_in_inExpression1725);
                        if (state.failed)
                            return result;
                        if (state.backtracking == 0) {
                            helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_ARGUMENT);
                        }
                        pushFollow(FOLLOW_expression_in_inExpression1747);
                        e1 = expression();
                        state._fsp--;
                        if (state.failed)
                            return result;
                        if (state.backtracking == 0) {
                            descr = ConstraintConnectiveDescr.newOr();
                            RelationalExprDescr rel = new RelationalExprDescr("==", false, null, leftDescr, (e1 != null ? ((DRL6Expressions.expression_return) e1).result : null));
                            descr.addOrMerge(rel);
                            result = descr;
                        }
                        // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:359:7: ( COMMA e2= expression )*
                        loop35: while (true) {
                            int alt35 = 2;
                            int LA35_0 = input.LA(1);
                            if ((LA35_0 == COMMA)) {
                                alt35 = 1;
                            }
                            switch(alt35) {
                                case 1:
                                    // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:359:8: COMMA e2= expression
                                    {
                                        match(input, COMMA, FOLLOW_COMMA_in_inExpression1766);
                                        if (state.failed)
                                            return result;
                                        pushFollow(FOLLOW_expression_in_inExpression1770);
                                        e2 = expression();
                                        state._fsp--;
                                        if (state.failed)
                                            return result;
                                        if (state.backtracking == 0) {
                                            RelationalExprDescr rel = new RelationalExprDescr("==", false, null, leftDescr, (e2 != null ? ((DRL6Expressions.expression_return) e2).result : null));
                                            descr.addOrMerge(rel);
                                        }
                                    }
                                    break;
                                default:
                                    break loop35;
                            }
                        }
                        match(input, RIGHT_PAREN, FOLLOW_RIGHT_PAREN_in_inExpression1791);
                        if (state.failed)
                            return result;
                        if (state.backtracking == 0) {
                            helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_END);
                        }
                    }
                    break;
            }
        }
        if (state.backtracking == 0) {
            if (binding != null && descr != null)
                descr.addOrMerge(binding);
        }
    } catch (RecognitionException re) {
        throw re;
    } finally {
    // do for sure before leaving
    }
    return result;
}

Example 23 with BaseDescr

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

the class DRL5Parser method lhsParen.

/**
 * lhsParen := LEFT_PAREN lhsOr RIGHT_PAREN
 *
 * @param ce
 * @return
 * @throws RecognitionException
 */
private BaseDescr lhsParen(CEDescrBuilder<?, ?> ce, boolean allowOr) throws RecognitionException {
    match(input, DRL5Lexer.LEFT_PAREN, null, null, DroolsEditorType.SYMBOL);
    if (state.failed)
        return null;
    if (state.backtracking == 0 && input.LA(1) != DRL5Lexer.EOF) {
        helper.emit(Location.LOCATION_LHS_BEGIN_OF_CONDITION);
    }
    BaseDescr descr = lhsOr(ce, allowOr);
    if (state.failed)
        return null;
    match(input, DRL5Lexer.RIGHT_PAREN, null, null, DroolsEditorType.SYMBOL);
    if (state.failed)
        return null;
    return descr;
}

Example 24 with BaseDescr

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

the class DRL5Parser method lhsAnd.

/**
 * lhsAnd := LEFT_PAREN AND lhsUnary+ RIGHT_PAREN
 *         | lhsUnary (AND lhsUnary)*
 *
 * @param ce
 * @throws RecognitionException
 */
private BaseDescr lhsAnd(final CEDescrBuilder<?, ?> ce, boolean allowOr) throws RecognitionException {
    BaseDescr result = null;
    if (input.LA(1) == DRL5Lexer.LEFT_PAREN && helper.validateLT(2, DroolsSoftKeywords.AND)) {
        // prefixed AND
        CEDescrBuilder<?, AndDescr> and = null;
        if (state.backtracking == 0) {
            and = ce.and();
            result = ce.getDescr();
            helper.start(and, CEDescrBuilder.class, null);
        }
        try {
            match(input, DRL5Lexer.LEFT_PAREN, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
            match(input, DRL5Lexer.ID, DroolsSoftKeywords.AND, null, DroolsEditorType.KEYWORD);
            if (state.failed)
                return null;
            while (input.LA(1) == DRL5Lexer.AT) {
                // annotation*
                annotation(and);
                if (state.failed)
                    return null;
            }
            if (state.backtracking == 0) {
                helper.emit(Location.LOCATION_LHS_BEGIN_OF_CONDITION_AND_OR);
            }
            while (input.LA(1) != DRL5Lexer.RIGHT_PAREN) {
                lhsUnary(and, allowOr);
                if (state.failed)
                    return null;
            }
            match(input, DRL5Lexer.RIGHT_PAREN, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
        } finally {
            if (state.backtracking == 0) {
                helper.end(CEDescrBuilder.class, and);
            }
        }
    } else {
        // infix AND
        // create an AND anyway, since if it is not an AND we remove it later
        CEDescrBuilder<?, AndDescr> and = null;
        if (state.backtracking == 0) {
            and = ce.and();
            result = and.getDescr();
            helper.start(and, CEDescrBuilder.class, null);
        }
        try {
            lhsUnary(and, allowOr);
            if (state.failed)
                return null;
            if (helper.validateIdentifierKey(DroolsSoftKeywords.AND) || input.LA(1) == DRL5Lexer.DOUBLE_AMPER) {
                while (helper.validateIdentifierKey(DroolsSoftKeywords.AND) || input.LA(1) == DRL5Lexer.DOUBLE_AMPER) {
                    if (input.LA(1) == DRL5Lexer.DOUBLE_AMPER) {
                        match(input, DRL5Lexer.DOUBLE_AMPER, null, null, DroolsEditorType.SYMBOL);
                    } else {
                        match(input, DRL5Lexer.ID, DroolsSoftKeywords.AND, null, DroolsEditorType.KEYWORD);
                    }
                    if (state.failed)
                        return null;
                    while (input.LA(1) == DRL5Lexer.AT) {
                        // annotation*
                        annotation(and);
                        if (state.failed)
                            return null;
                    }
                    if (state.backtracking == 0) {
                        helper.emit(Location.LOCATION_LHS_BEGIN_OF_CONDITION_AND_OR);
                    }
                    lhsUnary(and, allowOr);
                    if (state.failed)
                        return null;
                }
            } else {
                if (state.backtracking == 0 && and.getDescr().getDescrs().size() < 2) {
                    // if no AND present, then remove it and add children to parent
                    ((ConditionalElementDescr) ce.getDescr()).getDescrs().remove(and.getDescr());
                    for (BaseDescr base : and.getDescr().getDescrs()) {
                        ((ConditionalElementDescr) ce.getDescr()).addDescr(base);
                    }
                    result = ce.getDescr();
                }
            }
        } finally {
            if (state.backtracking == 0) {
                helper.end(CEDescrBuilder.class, and);
            }
        }
    }
    return result;
}

Example 25 with BaseDescr

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

the class DRL5Parser method constraint.

/**
 * constraint := nestedConstraint | conditionalOrExpression
 * @param pattern
 * @throws RecognitionException
 */
private void constraint(PatternDescrBuilder<?> pattern, boolean positional, String prefix) throws RecognitionException {
    if (speculateNestedConstraint()) {
        nestedConstraint(pattern, prefix);
        return;
    }
    if (state.backtracking == 0) {
        helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_START);
    }
    int first = input.index();
    // resetting
    exprParser.getHelper().setHasOperator(false);
    try {
        exprParser.conditionalOrExpression();
    } finally {
        if (state.backtracking == 0) {
            if (input.LA(1) == DRL5Lexer.ID && input.LA(2) == DRL5Lexer.EOF) {
                helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_ARGUMENT);
            } else if (input.LA(1) != DRL5Lexer.EOF) {
                helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_END);
            } else if (!lastTokenWasWhiteSpace()) {
                int location = getCurrentLocation();
                if (location == Location.LOCATION_LHS_INSIDE_CONDITION_END) {
                    helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_ARGUMENT);
                } else if (input.get(input.index()).getType() != DRL5Lexer.EOF) {
                    helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_START);
                }
            } else if (getCurrentLocation() == Location.LOCATION_LHS_INSIDE_CONDITION_START && !exprParser.getHelper().getHasOperator() && lastTokenWasWhiteSpace() && input.LA(1) == DRL5Lexer.EOF && input.LA(-1) == DRL5Lexer.ID) {
                helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_OPERATOR);
            }
        }
    }
    if (state.failed)
        return;
    if (state.backtracking == 0 && input.index() > first) {
        // expression consumed something
        int last = input.LT(-1).getTokenIndex();
        String expr = toExpression(prefix, first, last);
        pattern.constraint(expr, positional);
        BaseDescr constrDescr = pattern.getDescr().getDescrs().get(pattern.getDescr().getDescrs().size() - 1);
        constrDescr.setLocation(input.get(first).getLine(), input.get(first).getCharPositionInLine());
        constrDescr.setEndLocation(input.get(last).getLine(), input.get(last).getCharPositionInLine());
        constrDescr.setStartCharacter(((CommonToken) input.get(first)).getStartIndex());
        constrDescr.setEndCharacter(((CommonToken) input.get(last)).getStopIndex());
    }
}