Examples with DescrBuilder org.drools.compiler.lang.api.DescrBuilder used on opensource projects

Example 16 with DescrBuilder

use of org.drools.compiler.lang.api.DescrBuilder in project drools by kiegroup.

the class DRL6Parser method breakingNamedConsequence.

/**
 * breakingNamedConsequence := BREAK LEFT_SQUARE ID RIGHT_SQUARE
 */
private BaseDescr breakingNamedConsequence(CEDescrBuilder<?, ?> ce, NamedConsequenceDescrBuilder<?> namedConsequence) throws RecognitionException {
    if (namedConsequence == null) {
        namedConsequence = helper.start((DescrBuilder<?, ?>) ce, NamedConsequenceDescrBuilder.class, null);
    }
    try {
        match(input, DRL6Lexer.ID, DroolsSoftKeywords.BREAK, null, DroolsEditorType.KEYWORD);
        if (state.failed)
            return null;
        match(input, DRL6Lexer.LEFT_SQUARE, null, null, DroolsEditorType.SYMBOL);
        if (state.failed)
            return null;
        Token label = match(input, DRL6Lexer.ID, null, null, DroolsEditorType.SYMBOL);
        if (state.failed)
            return null;
        namedConsequence.name(label.getText());
        namedConsequence.breaking(true);
        match(input, DRL6Lexer.RIGHT_SQUARE, null, null, DroolsEditorType.SYMBOL);
        if (state.failed)
            return null;
    } finally {
        helper.end(NamedConsequenceDescrBuilder.class, namedConsequence);
    }
    return namedConsequence.getDescr();
}

Example 17 with DescrBuilder

use of org.drools.compiler.lang.api.DescrBuilder in project drools by kiegroup.

the class DRL6StrictParser method lhsPatternBind.

/**
 * lhsPatternBind := label?
 *                ( LEFT_PAREN lhsPattern (OR lhsPattern)* RIGHT_PAREN
 *                | lhsPattern )
 *
 * @param ce
 * @return
 * @throws org.antlr.runtime.RecognitionException
 */
@SuppressWarnings("unchecked")
private BaseDescr lhsPatternBind(PatternContainerDescrBuilder<?, ?> ce, final boolean allowOr) throws RecognitionException {
    PatternDescrBuilder<?> pattern = null;
    CEDescrBuilder<?, OrDescr> or = null;
    BaseDescr result = null;
    Token first = input.LT(1);
    pattern = helper.start((DescrBuilder<?, ?>) ce, PatternDescrBuilder.class, null);
    if (pattern != null) {
        result = pattern.getDescr();
    }
    String label = null;
    boolean isUnification = false;
    if (input.LA(1) == DRL6Lexer.ID && input.LA(2) == DRL6Lexer.COLON && !helper.validateCEKeyword(1)) {
        label = label(DroolsEditorType.IDENTIFIER_PATTERN);
        if (state.failed)
            return null;
    } else if (input.LA(1) == DRL6Lexer.ID && input.LA(2) == DRL6Lexer.UNIFY && !helper.validateCEKeyword(1)) {
        label = unif(DroolsEditorType.IDENTIFIER_PATTERN);
        if (state.failed)
            return null;
        isUnification = true;
    }
    if (input.LA(1) == DRL6Lexer.LEFT_PAREN) {
        try {
            match(input, DRL6Lexer.LEFT_PAREN, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
            if (helper.validateCEKeyword(1)) {
                failMismatchedTokenException();
                // in case it is backtracking
                return null;
            }
            lhsPattern(pattern, label, isUnification);
            if (state.failed)
                return null;
            if (allowOr && helper.validateIdentifierKey(DroolsSoftKeywords.OR) && ce instanceof CEDescrBuilder) {
                if (state.backtracking == 0) {
                    // this is necessary because of the crappy bind with multi-pattern OR syntax
                    or = ((CEDescrBuilder<DescrBuilder<?, ?>, OrDescr>) ce).or();
                    result = or.getDescr();
                    helper.end(PatternDescrBuilder.class, pattern);
                    helper.start(or, CEDescrBuilder.class, null);
                    // adjust real or starting token:
                    helper.setStart(or, first);
                    // remove original pattern from the parent CE child list:
                    ((ConditionalElementDescr) ce.getDescr()).getDescrs().remove(pattern.getDescr());
                    // add pattern to the OR instead
                    or.getDescr().addDescr(pattern.getDescr());
                }
                while (helper.validateIdentifierKey(DroolsSoftKeywords.OR)) {
                    match(input, DRL6Lexer.ID, DroolsSoftKeywords.OR, null, DroolsEditorType.KEYWORD);
                    if (state.failed)
                        return null;
                    pattern = helper.start(or, PatternDescrBuilder.class, null);
                    // new pattern, same binding
                    lhsPattern(pattern, label, isUnification);
                    if (state.failed)
                        return null;
                    helper.end(PatternDescrBuilder.class, pattern);
                }
            }
            match(input, DRL6Lexer.RIGHT_PAREN, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
        } finally {
            if (or != null) {
                helper.end(CEDescrBuilder.class, or);
            } else {
                helper.end(PatternDescrBuilder.class, pattern);
            }
        }
    } else {
        try {
            lhsPattern(pattern, label, isUnification);
            if (state.failed)
                return null;
        } finally {
            helper.end(PatternDescrBuilder.class, pattern);
        }
    }
    return result;
}

Example 18 with DescrBuilder

use of org.drools.compiler.lang.api.DescrBuilder in project drools by kiegroup.

the class DRL6StrictParser method booleanAttribute.

/**
 * booleanAttribute := attributeKey (BOOLEAN)?
 * @param key
 * @throws org.antlr.runtime.RecognitionException
 */
private AttributeDescr booleanAttribute(AttributeSupportBuilder<?> as, String[] key) throws RecognitionException {
    AttributeDescrBuilder<?> attribute = null;
    try {
        StringBuilder builder = new StringBuilder();
        for (String k : key) {
            if ("-".equals(k)) {
                match(input, DRL6Lexer.MINUS, k, null, // part of the keyword
                DroolsEditorType.KEYWORD);
                if (state.failed)
                    return null;
            } else {
                match(input, DRL6Lexer.ID, k, null, DroolsEditorType.KEYWORD);
                if (state.failed)
                    return null;
            }
            builder.append(k);
        }
        if (state.backtracking == 0) {
            attribute = helper.start((DescrBuilder<?, ?>) as, AttributeDescrBuilder.class, builder.toString());
        }
        String value = "true";
        if (input.LA(1) == DRL6Lexer.BOOL) {
            Token bool = match(input, DRL6Lexer.BOOL, null, null, DroolsEditorType.KEYWORD);
            if (state.failed)
                return null;
            value = bool.getText();
        }
        if (state.backtracking == 0) {
            attribute.value(value);
            attribute.type(AttributeDescr.Type.BOOLEAN);
        }
    } finally {
        if (attribute != null) {
            helper.end(AttributeDescrBuilder.class, attribute);
        }
    }
    return attribute != null ? attribute.getDescr() : null;
}

Example 19 with DescrBuilder

use of org.drools.compiler.lang.api.DescrBuilder in project drools by kiegroup.

the class DRL5Parser method stringAttribute.

/**
 * stringAttribute := attributeKey STRING
 * @param key
 * @throws RecognitionException
 */
private AttributeDescr stringAttribute(AttributeSupportBuilder<?> as, String[] key) throws RecognitionException {
    AttributeDescrBuilder<?> attribute = null;
    try {
        StringBuilder builder = new StringBuilder();
        for (String k : key) {
            if ("-".equals(k)) {
                match(input, DRL5Lexer.MINUS, k, null, // part of the keyword
                DroolsEditorType.KEYWORD);
                if (state.failed)
                    return null;
            } else {
                match(input, DRL5Lexer.ID, k, null, DroolsEditorType.KEYWORD);
                if (state.failed)
                    return null;
            }
            builder.append(k);
        }
        if (state.backtracking == 0) {
            attribute = helper.start((DescrBuilder<?, ?>) as, AttributeDescrBuilder.class, builder.toString());
        }
        Token value = match(input, DRL5Lexer.STRING, null, null, DroolsEditorType.STRING_CONST);
        if (state.failed)
            return null;
        if (state.backtracking == 0) {
            attribute.value(StringUtils.unescapeJava(safeStripStringDelimiters(value.getText())));
            attribute.type(AttributeDescr.Type.STRING);
        }
    } finally {
        if (attribute != null) {
            helper.end(AttributeDescrBuilder.class, attribute);
        }
    }
    return attribute != null ? attribute.getDescr() : null;
}

Example 20 with DescrBuilder

use of org.drools.compiler.lang.api.DescrBuilder in project drools by kiegroup.

the class DRL5Parser method lhsPatternBind.

/**
 * lhsPatternBind := label?
 *                ( LEFT_PAREN lhsPattern (OR lhsPattern)* RIGHT_PAREN
 *                | lhsPattern )
 *
 * @param ce
 * @return
 * @throws RecognitionException
 */
@SuppressWarnings("unchecked")
private BaseDescr lhsPatternBind(PatternContainerDescrBuilder<?, ?> ce, final boolean allowOr) throws RecognitionException {
    PatternDescrBuilder<?> pattern = null;
    CEDescrBuilder<?, OrDescr> or = null;
    BaseDescr result = null;
    Token first = input.LT(1);
    pattern = helper.start((DescrBuilder<?, ?>) ce, PatternDescrBuilder.class, null);
    if (pattern != null) {
        result = pattern.getDescr();
    }
    String label = null;
    boolean isUnification = false;
    if (input.LA(1) == DRL5Lexer.ID && input.LA(2) == DRL5Lexer.COLON && !helper.validateCEKeyword(1)) {
        label = label(DroolsEditorType.IDENTIFIER_PATTERN);
        if (state.failed)
            return null;
    } else if (input.LA(1) == DRL5Lexer.ID && input.LA(2) == DRL5Lexer.UNIFY && !helper.validateCEKeyword(1)) {
        label = unif(DroolsEditorType.IDENTIFIER_PATTERN);
        if (state.failed)
            return null;
        isUnification = true;
    }
    if (input.LA(1) == DRL5Lexer.LEFT_PAREN) {
        try {
            match(input, DRL5Lexer.LEFT_PAREN, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
            if (helper.validateCEKeyword(1)) {
                failMismatchedTokenException();
                // in case it is backtracking
                return null;
            }
            lhsPattern(pattern, label, isUnification);
            if (state.failed)
                return null;
            if (allowOr && helper.validateIdentifierKey(DroolsSoftKeywords.OR) && ce instanceof CEDescrBuilder) {
                if (state.backtracking == 0) {
                    // this is necessary because of the crappy bind with multi-pattern OR syntax
                    or = ((CEDescrBuilder<DescrBuilder<?, ?>, OrDescr>) ce).or();
                    result = or.getDescr();
                    helper.end(PatternDescrBuilder.class, pattern);
                    helper.start(or, CEDescrBuilder.class, null);
                    // adjust real or starting token:
                    helper.setStart(or, first);
                    // remove original pattern from the parent CE child list:
                    ((ConditionalElementDescr) ce.getDescr()).getDescrs().remove(pattern.getDescr());
                    // add pattern to the OR instead
                    or.getDescr().addDescr(pattern.getDescr());
                }
                while (helper.validateIdentifierKey(DroolsSoftKeywords.OR)) {
                    match(input, DRL5Lexer.ID, DroolsSoftKeywords.OR, null, DroolsEditorType.KEYWORD);
                    if (state.failed)
                        return null;
                    pattern = helper.start(or, PatternDescrBuilder.class, null);
                    // new pattern, same binding
                    lhsPattern(pattern, label, isUnification);
                    if (state.failed)
                        return null;
                    helper.end(PatternDescrBuilder.class, pattern);
                }
            }
            match(input, DRL5Lexer.RIGHT_PAREN, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
        } finally {
            if (or != null) {
                helper.end(CEDescrBuilder.class, or);
            } else {
                helper.end(PatternDescrBuilder.class, pattern);
            }
        }
    } else {
        try {
            lhsPattern(pattern, label, isUnification);
            if (state.failed)
                return null;
        } finally {
            helper.end(PatternDescrBuilder.class, pattern);
        }
    }
    return result;
}