Examples with AtomicExprDescr org.drools.compiler.lang.descr.AtomicExprDescr used on opensource projects

Example 21 with AtomicExprDescr

use of org.drools.compiler.lang.descr.AtomicExprDescr in project drools by kiegroup.

the class DRL6Expressions method instanceOfExpression.

// $ANTLR end "equalityExpression"
// $ANTLR start "instanceOfExpression"
// src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:312:1: instanceOfExpression returns [BaseDescr result] : left= inExpression (op= instanceof_key right= type )? ;
public final BaseDescr instanceOfExpression() throws RecognitionException {
    BaseDescr result = null;
    BaseDescr left = null;
    ParserRuleReturnScope op = null;
    ParserRuleReturnScope right = null;
    try {
        // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:313:3: (left= inExpression (op= instanceof_key right= type )? )
        // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:313:5: left= inExpression (op= instanceof_key right= type )?
        {
            pushFollow(FOLLOW_inExpression_in_instanceOfExpression1546);
            left = inExpression();
            state._fsp--;
            if (state.failed)
                return result;
            if (state.backtracking == 0) {
                if (buildDescr) {
                    result = left;
                }
            }
            // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:314:3: (op= instanceof_key right= type )?
            int alt33 = 2;
            int LA33_0 = input.LA(1);
            if ((LA33_0 == ID)) {
                int LA33_1 = input.LA(2);
                if ((LA33_1 == ID) && (((helper.validateIdentifierKey(DroolsSoftKeywords.INSTANCEOF))))) {
                    alt33 = 1;
                }
            }
            switch(alt33) {
                case 1:
                    // src/main/resources/org/drools/compiler/lang/DRL6Expressions.g:314:5: op= instanceof_key right= type
                    {
                        pushFollow(FOLLOW_instanceof_key_in_instanceOfExpression1556);
                        op = instanceof_key();
                        state._fsp--;
                        if (state.failed)
                            return result;
                        if (state.backtracking == 0) {
                            helper.setHasOperator(true);
                            if (input.LA(1) != DRL6Lexer.EOF)
                                helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_ARGUMENT);
                        }
                        pushFollow(FOLLOW_type_in_instanceOfExpression1570);
                        right = type();
                        state._fsp--;
                        if (state.failed)
                            return result;
                        if (state.backtracking == 0) {
                            if (buildDescr) {
                                result = new RelationalExprDescr((op != null ? input.toString(op.start, op.stop) : null), false, null, left, new AtomicExprDescr((right != null ? input.toString(right.start, right.stop) : null)));
                            }
                        }
                    }
                    break;
            }
        }
    } catch (RecognitionException re) {
        throw re;
    } finally {
    // do for sure before leaving
    }
    return result;
}

Example 22 with AtomicExprDescr

use of org.drools.compiler.lang.descr.AtomicExprDescr in project drools by kiegroup.

the class MVELDumper method processNullSafeDereferencing.

private String[] processNullSafeDereferencing(String expr, AtomicExprDescr atomicExpr, ConstraintConnectiveDescr ccd, int nullSafePos, int parentIdx, int childIdx) {
    // convert "field1!.field2" in ["field1 != null && ", "field1.field2"]
    String field1 = expr.substring(0, nullSafePos).trim();
    expr = field1 + "." + expr.substring(nullSafePos + 2).trim();
    RelationalExprDescr check = new RelationalExprDescr("!=", false, null, new AtomicExprDescr(getPreconditionsToAppend(field1)), new AtomicExprDescr("null"));
    if (ccd.getConnective() == ConnectiveType.AND || ccd.getConnective() == ConnectiveType.INC_AND) {
        ccd.getDescrs().add(childIdx, check);
    } else {
        BaseDescr desc = ccd.getDescrs().get(parentIdx);
        if (desc instanceof ConstraintConnectiveDescr) {
            ((ConstraintConnectiveDescr) desc).getDescrs().add(childIdx, check);
        } else {
            ConstraintConnectiveDescr localAnd = new ConstraintConnectiveDescr(ConnectiveType.AND);
            BaseDescr original = ccd.getDescrs().remove(parentIdx);
            localAnd.getDescrs().add(check);
            localAnd.getDescrs().add(original);
            ccd.getDescrs().add(parentIdx, localAnd);
        }
    }
    String innerCheck = check.toString() + " && ";
    String[] nullCheckAndExpr = new String[] { innerCheck, expr };
    atomicExpr.setRewrittenExpression(expr);
    return nullCheckAndExpr;
}

Example 23 with AtomicExprDescr

use of org.drools.compiler.lang.descr.AtomicExprDescr in project drools by kiegroup.

the class DRL5Expressions method singleRestriction.

// $ANTLR end "andRestriction"
// $ANTLR start "singleRestriction"
// src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:421:1: singleRestriction returns [BaseDescr result] : (op= operator ( ( squareArguments shiftExpression )=>sa= squareArguments value= shiftExpression |value= shiftExpression ) | LEFT_PAREN or= orRestriction RIGHT_PAREN );
public final BaseDescr singleRestriction() throws RecognitionException {
    BaseDescr result = null;
    ParserRuleReturnScope op = null;
    java.util.List<String> sa = null;
    ParserRuleReturnScope value = null;
    BaseDescr or = null;
    try {
        // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:422:3: (op= operator ( ( squareArguments shiftExpression )=>sa= squareArguments value= shiftExpression |value= shiftExpression ) | LEFT_PAREN or= orRestriction RIGHT_PAREN )
        int alt44 = 2;
        int LA44_0 = input.LA(1);
        if ((LA44_0 == EQUALS || (LA44_0 >= GREATER && LA44_0 <= GREATER_EQUALS) || (LA44_0 >= LESS && LA44_0 <= LESS_EQUALS) || LA44_0 == NOT_EQUALS || LA44_0 == TILDE)) {
            alt44 = 1;
        } else if ((LA44_0 == ID) && ((((helper.validateIdentifierKey(DroolsSoftKeywords.NOT))) || ((helper.isPluggableEvaluator(false)))))) {
            alt44 = 1;
        } else if ((LA44_0 == LEFT_PAREN)) {
            alt44 = 2;
        } else {
            if (state.backtracking > 0) {
                state.failed = true;
                return result;
            }
            NoViableAltException nvae = new NoViableAltException("", 44, 0, input);
            throw nvae;
        }
        switch(alt44) {
            case 1:
                // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:422:6: op= operator ( ( squareArguments shiftExpression )=>sa= squareArguments value= shiftExpression |value= shiftExpression )
                {
                    pushFollow(FOLLOW_operator_in_singleRestriction1963);
                    op = operator();
                    state._fsp--;
                    if (state.failed)
                        return result;
                    if (state.backtracking == 0) {
                        helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_ARGUMENT);
                    }
                    // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:424:6: ( ( squareArguments shiftExpression )=>sa= squareArguments value= shiftExpression |value= shiftExpression )
                    int alt43 = 2;
                    int LA43_0 = input.LA(1);
                    if ((LA43_0 == LEFT_SQUARE)) {
                        int LA43_1 = input.LA(2);
                        if ((synpred11_DRL5Expressions())) {
                            alt43 = 1;
                        } else if ((true)) {
                            alt43 = 2;
                        }
                    } else if ((LA43_0 == BOOL || (LA43_0 >= DECIMAL && LA43_0 <= DECR) || LA43_0 == FLOAT || LA43_0 == HEX || (LA43_0 >= ID && LA43_0 <= INCR) || LA43_0 == LEFT_PAREN || LA43_0 == LESS || LA43_0 == MINUS || LA43_0 == NEGATION || LA43_0 == NULL || LA43_0 == PLUS || (LA43_0 >= STAR && LA43_0 <= TIME_INTERVAL))) {
                        alt43 = 2;
                    } else {
                        if (state.backtracking > 0) {
                            state.failed = true;
                            return result;
                        }
                        NoViableAltException nvae = new NoViableAltException("", 43, 0, input);
                        throw nvae;
                    }
                    switch(alt43) {
                        case 1:
                            // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:424:8: ( squareArguments shiftExpression )=>sa= squareArguments value= shiftExpression
                            {
                                pushFollow(FOLLOW_squareArguments_in_singleRestriction1992);
                                sa = squareArguments();
                                state._fsp--;
                                if (state.failed)
                                    return result;
                                pushFollow(FOLLOW_shiftExpression_in_singleRestriction1996);
                                value = shiftExpression();
                                state._fsp--;
                                if (state.failed)
                                    return result;
                            }
                            break;
                        case 2:
                            // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:425:10: value= shiftExpression
                            {
                                pushFollow(FOLLOW_shiftExpression_in_singleRestriction2009);
                                value = shiftExpression();
                                state._fsp--;
                                if (state.failed)
                                    return result;
                            }
                            break;
                    }
                    if (state.backtracking == 0) {
                        if (buildDescr) {
                            BaseDescr descr = ((value != null ? ((DRL5Expressions.shiftExpression_return) value).result : null) != null && ((!((value != null ? ((DRL5Expressions.shiftExpression_return) value).result : null) instanceof AtomicExprDescr)) || ((value != null ? input.toString(value.start, value.stop) : null).equals(((AtomicExprDescr) (value != null ? ((DRL5Expressions.shiftExpression_return) value).result : null)).getExpression())))) ? (value != null ? ((DRL5Expressions.shiftExpression_return) value).result : null) : new AtomicExprDescr((value != null ? input.toString(value.start, value.stop) : null));
                            result = new RelationalExprDescr((op != null ? ((DRL5Expressions.operator_return) op).opr : null), (op != null ? ((DRL5Expressions.operator_return) op).negated : false), sa, relationalExpression_stack.peek().lsd, descr);
                            if (relationalExpression_stack.peek().lsd instanceof BindingDescr) {
                                relationalExpression_stack.peek().lsd = new AtomicExprDescr(((BindingDescr) relationalExpression_stack.peek().lsd).getExpression());
                            }
                        }
                        helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_END);
                    }
                }
                break;
            case 2:
                // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:440:6: LEFT_PAREN or= orRestriction RIGHT_PAREN
                {
                    match(input, LEFT_PAREN, FOLLOW_LEFT_PAREN_in_singleRestriction2034);
                    if (state.failed)
                        return result;
                    pushFollow(FOLLOW_orRestriction_in_singleRestriction2038);
                    or = orRestriction();
                    state._fsp--;
                    if (state.failed)
                        return result;
                    match(input, RIGHT_PAREN, FOLLOW_RIGHT_PAREN_in_singleRestriction2040);
                    if (state.failed)
                        return result;
                    if (state.backtracking == 0) {
                        result = or;
                    }
                }
                break;
        }
    } catch (RecognitionException re) {
        throw re;
    } finally {
    // do for sure before leaving
    }
    return result;
}

Example 24 with AtomicExprDescr

use of org.drools.compiler.lang.descr.AtomicExprDescr in project drools by kiegroup.

the class DRLExprParserTest method testDeepBinding.

@Test
public void testDeepBinding() throws Exception {
    String source = "($a : a > $b : b[10].prop || 10 != 20) && $x : someMethod(10) == 20";
    ConstraintConnectiveDescr result = parser.parse(source);
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    assertEquals(ConnectiveType.AND, result.getConnective());
    assertEquals(2, result.getDescrs().size());
    ConstraintConnectiveDescr or = (ConstraintConnectiveDescr) result.getDescrs().get(0);
    assertEquals(ConnectiveType.OR, or.getConnective());
    assertEquals(2, or.getDescrs().size());
    RelationalExprDescr expr = (RelationalExprDescr) or.getDescrs().get(0);
    assertEquals(">", expr.getOperator());
    BindingDescr leftBind = (BindingDescr) expr.getLeft();
    BindingDescr rightBind = (BindingDescr) expr.getRight();
    assertEquals("$a", leftBind.getVariable());
    assertEquals("a", leftBind.getExpression());
    assertEquals("$b", rightBind.getVariable());
    assertEquals("b[10].prop", rightBind.getExpression());
    expr = (RelationalExprDescr) or.getDescrs().get(1);
    assertEquals("!=", expr.getOperator());
    AtomicExprDescr leftExpr = (AtomicExprDescr) expr.getLeft();
    AtomicExprDescr rightExpr = (AtomicExprDescr) expr.getRight();
    assertEquals("10", leftExpr.getExpression());
    assertEquals("20", rightExpr.getExpression());
    expr = (RelationalExprDescr) result.getDescrs().get(1);
    assertEquals("==", expr.getOperator());
    leftBind = (BindingDescr) expr.getLeft();
    rightExpr = (AtomicExprDescr) expr.getRight();
    assertEquals("$x", leftBind.getVariable());
    assertEquals("someMethod(10)", leftBind.getExpression());
    assertEquals("20", rightExpr.getExpression());
}

Example 25 with AtomicExprDescr

use of org.drools.compiler.lang.descr.AtomicExprDescr in project drools by kiegroup.

the class DRLExprParserTest method testConnective2.

@Test
public void testConnective2() throws Exception {
    String source = "(a > b || 10 != 20) && someMethod(10) == 20";
    ConstraintConnectiveDescr result = parser.parse(source);
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    assertEquals(ConnectiveType.AND, result.getConnective());
    assertEquals(2, result.getDescrs().size());
    ConstraintConnectiveDescr or = (ConstraintConnectiveDescr) result.getDescrs().get(0);
    assertEquals(ConnectiveType.OR, or.getConnective());
    assertEquals(2, or.getDescrs().size());
    RelationalExprDescr expr = (RelationalExprDescr) or.getDescrs().get(0);
    assertEquals(">", expr.getOperator());
    AtomicExprDescr left = (AtomicExprDescr) expr.getLeft();
    AtomicExprDescr right = (AtomicExprDescr) expr.getRight();
    assertEquals("a", left.getExpression());
    assertEquals("b", right.getExpression());
    expr = (RelationalExprDescr) or.getDescrs().get(1);
    assertEquals("!=", expr.getOperator());
    left = (AtomicExprDescr) expr.getLeft();
    right = (AtomicExprDescr) expr.getRight();
    assertEquals("10", left.getExpression());
    assertEquals("20", right.getExpression());
    expr = (RelationalExprDescr) result.getDescrs().get(1);
    assertEquals("==", expr.getOperator());
    left = (AtomicExprDescr) expr.getLeft();
    right = (AtomicExprDescr) expr.getRight();
    assertEquals("someMethod(10)", left.getExpression());
    assertEquals("20", right.getExpression());
}