Examples with MethodDeclaration org.drools.javaparser.ast.body.MethodDeclaration used on opensource projects

Example 1 with MethodDeclaration

use of org.drools.javaparser.ast.body.MethodDeclaration in project drools by kiegroup.

the class PackageModel method getRulesSource.

public RuleSourceResult getRulesSource() {
    CompilationUnit cu = new CompilationUnit();
    cu.setPackageDeclaration(name);
    manageImportForCompilationUnit(cu);
    ClassOrInterfaceDeclaration rulesClass = cu.addClass(rulesFileName);
    rulesClass.addImplementedType(Model.class);
    BodyDeclaration<?> dateFormatter = JavaParser.parseBodyDeclaration("public final static DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(DateUtils.getDateFormatMask());\n");
    rulesClass.addMember(dateFormatter);
    BodyDeclaration<?> getNameMethod = JavaParser.parseBodyDeclaration("    @Override\n" + "        public String getName() {\n" + "        return \"" + name + "\";\n" + "    }\n");
    rulesClass.addMember(getNameMethod);
    BodyDeclaration<?> getRulesMethod = JavaParser.parseBodyDeclaration("    @Override\n" + "    public List<Rule> getRules() {\n" + "        return rules;\n" + "    }\n");
    rulesClass.addMember(getRulesMethod);
    StringBuilder sb = new StringBuilder("\n");
    sb.append("With the following expression ID:\n");
    sb.append(exprIdGenerator.toString());
    sb.append("\n");
    JavadocComment exprIdComment = new JavadocComment(sb.toString());
    getRulesMethod.setComment(exprIdComment);
    BodyDeclaration<?> getGlobalsMethod = JavaParser.parseBodyDeclaration("    @Override\n" + "    public List<Global> getGlobals() {\n" + "        return globals;\n" + "    }\n");
    rulesClass.addMember(getGlobalsMethod);
    BodyDeclaration<?> getQueriesMethod = JavaParser.parseBodyDeclaration("    @Override\n" + "    public List<Query> getQueries() {\n" + "        return queries;\n" + "    }\n");
    rulesClass.addMember(getQueriesMethod);
    BodyDeclaration<?> getTypeMetaDataMethod = JavaParser.parseBodyDeclaration("    @Override\n" + "    public List<TypeMetaData> getTypeMetaDatas() {\n" + "        return typeMetaDatas;\n" + "    }\n");
    rulesClass.addMember(getTypeMetaDataMethod);
    for (Map.Entry<String, MethodCallExpr> windowReference : windowReferences.entrySet()) {
        FieldDeclaration f = rulesClass.addField(WINDOW_REFERENCE_TYPE, windowReference.getKey(), Modifier.PUBLIC, Modifier.STATIC, Modifier.FINAL);
        f.getVariables().get(0).setInitializer(windowReference.getValue());
    }
    for (Map.Entry<String, Class<?>> g : getGlobals().entrySet()) {
        addGlobalField(rulesClass, getName(), g.getKey(), g.getValue());
    }
    for (Map.Entry<String, QueryGenerator.QueryDefWithType> queryDef : queryDefWithType.entrySet()) {
        FieldDeclaration field = rulesClass.addField(queryDef.getValue().getQueryType(), queryDef.getKey(), Modifier.PUBLIC, Modifier.STATIC, Modifier.FINAL);
        field.getVariables().get(0).setInitializer(queryDef.getValue().getMethodCallExpr());
    }
    for (Map.Entry<String, MethodDeclaration> methodName : queryMethods.entrySet()) {
        FieldDeclaration field = rulesClass.addField(methodName.getValue().getType(), methodName.getKey(), Modifier.FINAL);
        field.getVariables().get(0).setInitializer(new MethodCallExpr(null, methodName.getKey()));
    }
    // instance initializer block.
    // add to `rules` list the result of invoking each method for rule
    InitializerDeclaration rulesListInitializer = new InitializerDeclaration();
    BlockStmt rulesListInitializerBody = new BlockStmt();
    rulesListInitializer.setBody(rulesListInitializerBody);
    queryMethods.values().forEach(rulesClass::addMember);
    buildArtifactsDeclaration(queryMethods.keySet(), rulesClass, rulesListInitializerBody, "Query", "queries", false);
    buildArtifactsDeclaration(windowReferences.keySet(), rulesClass, rulesListInitializerBody, "WindowReference", "windowReferences", false);
    buildArtifactsDeclaration(getGlobals().keySet(), rulesClass, rulesListInitializerBody, "Global", "globals", true);
    if (!typeMetaDataExpressions.isEmpty()) {
        BodyDeclaration<?> typeMetaDatasList = JavaParser.parseBodyDeclaration("List<TypeMetaData> typeMetaDatas = new ArrayList<>();");
        rulesClass.addMember(typeMetaDatasList);
        for (Expression expr : typeMetaDataExpressions) {
            addInitStatement(rulesListInitializerBody, expr, "typeMetaDatas");
        }
    } else {
        BodyDeclaration<?> typeMetaDatasList = JavaParser.parseBodyDeclaration("List<TypeMetaData> typeMetaDatas = Collections.emptyList();");
        rulesClass.addMember(typeMetaDatasList);
    }
    functions.forEach(rulesClass::addMember);
    RuleSourceResult results = new RuleSourceResult(cu);
    int ruleCount = ruleMethods.size();
    boolean requiresMultipleRulesLists = ruleCount >= RULES_DECLARATION_PER_CLASS - 1;
    MethodCallExpr rules = buildRulesField(rulesClass);
    if (requiresMultipleRulesLists) {
        addRulesList(rulesListInitializerBody, "rulesList");
    }
    // each method per Drlx parser result
    int count = -1;
    Map<Integer, ClassOrInterfaceDeclaration> splitted = new LinkedHashMap<>();
    for (Entry<String, MethodDeclaration> ruleMethodKV : ruleMethods.entrySet()) {
        ClassOrInterfaceDeclaration rulesMethodClass = splitted.computeIfAbsent(++count / RULES_PER_CLASS, i -> {
            CompilationUnit cuRulesMethod = new CompilationUnit();
            results.with(cuRulesMethod);
            cuRulesMethod.setPackageDeclaration(name);
            manageImportForCompilationUnit(cuRulesMethod);
            cuRulesMethod.addImport(JavaParser.parseImport("import static " + name + "." + rulesFileName + ".*;"));
            String currentRulesMethodClassName = rulesFileName + "RuleMethods" + i;
            return cuRulesMethod.addClass(currentRulesMethodClassName);
        });
        rulesMethodClass.addMember(ruleMethodKV.getValue());
        if (count % RULES_DECLARATION_PER_CLASS == RULES_DECLARATION_PER_CLASS - 1) {
            int index = count / RULES_DECLARATION_PER_CLASS;
            rules = buildRulesField(results, index);
            addRulesList(rulesListInitializerBody, rulesFileName + "Rules" + index + ".rulesList");
        }
        // manage in main class init block:
        rules.addArgument(new MethodCallExpr(new NameExpr(rulesMethodClass.getNameAsString()), ruleMethodKV.getKey()));
    }
    BodyDeclaration<?> rulesList = requiresMultipleRulesLists ? JavaParser.parseBodyDeclaration("List<Rule> rules = new ArrayList<>(" + ruleCount + ");") : JavaParser.parseBodyDeclaration("List<Rule> rules = rulesList;");
    rulesClass.addMember(rulesList);
    if (!rulesListInitializer.getBody().getStatements().isEmpty()) {
        rulesClass.addMember(rulesListInitializer);
    }
    return results;
}

Example 2 with MethodDeclaration

use of org.drools.javaparser.ast.body.MethodDeclaration in project drools by kiegroup.

the class ModelGenerator method processRule.

private static void processRule(KnowledgeBuilderImpl kbuilder, TypeResolver typeResolver, PackageModel packageModel, PackageDescr packageDescr, RuleDescr ruleDescr, boolean isPattern) {
    RuleContext context = new RuleContext(kbuilder, packageModel, ruleDescr, typeResolver, isPattern);
    for (Entry<String, Object> kv : ruleDescr.getNamedConsequences().entrySet()) {
        context.addNamedConsequence(kv.getKey(), kv.getValue().toString());
    }
    new ModelGeneratorVisitor(context, packageModel).visit(getExtendedLhs(packageDescr, ruleDescr));
    final String ruleMethodName = "rule_" + toId(ruleDescr.getName());
    MethodDeclaration ruleMethod = new MethodDeclaration(EnumSet.of(Modifier.PUBLIC, Modifier.STATIC), RULE_TYPE, ruleMethodName);
    ruleMethod.setJavadocComment(" Rule name: " + ruleDescr.getName() + " ");
    VariableDeclarationExpr ruleVar = new VariableDeclarationExpr(RULE_TYPE, RULE_CALL);
    MethodCallExpr ruleCall = new MethodCallExpr(null, RULE_CALL);
    if (!ruleDescr.getNamespace().isEmpty()) {
        ruleCall.addArgument(new StringLiteralExpr(ruleDescr.getNamespace()));
    }
    ruleCall.addArgument(new StringLiteralExpr(ruleDescr.getName()));
    RuleUnitDescr ruleUnitDescr = context.getRuleUnitDescr();
    MethodCallExpr buildCallScope = ruleUnitDescr != null ? new MethodCallExpr(ruleCall, UNIT_CALL).addArgument(new ClassExpr(classToReferenceType(ruleUnitDescr.getRuleUnitClass()))) : ruleCall;
    for (MethodCallExpr attributeExpr : ruleAttributes(context, ruleDescr)) {
        attributeExpr.setScope(buildCallScope);
        buildCallScope = attributeExpr;
    }
    for (MethodCallExpr metaAttributeExpr : ruleMetaAttributes(context, ruleDescr)) {
        metaAttributeExpr.setScope(buildCallScope);
        buildCallScope = metaAttributeExpr;
    }
    MethodCallExpr buildCall = new MethodCallExpr(buildCallScope, BUILD_CALL, NodeList.nodeList(context.getExpressions()));
    BlockStmt ruleVariablesBlock = new BlockStmt();
    createUnitData(ruleUnitDescr, ruleVariablesBlock);
    createVariables(kbuilder, ruleVariablesBlock, packageModel, context);
    ruleMethod.setBody(ruleVariablesBlock);
    MethodCallExpr executeCall = new Consequence(context).createCall(ruleDescr, ruleDescr.getConsequence().toString(), ruleVariablesBlock, false);
    buildCall.addArgument(executeCall);
    ruleVariablesBlock.addStatement(new AssignExpr(ruleVar, buildCall, AssignExpr.Operator.ASSIGN));
    ruleVariablesBlock.addStatement(new ReturnStmt(RULE_CALL));
    packageModel.putRuleMethod(ruleMethodName, ruleMethod);
}

Example 3 with MethodDeclaration

use of org.drools.javaparser.ast.body.MethodDeclaration in project drools by kiegroup.

the class POJOGenerator method toClassDeclaration.

/**
 * @param packageDescr
 */
public static ClassOrInterfaceDeclaration toClassDeclaration(TypeDeclarationDescr typeDeclaration, PackageDescr packageDescr) {
    EnumSet<Modifier> classModifiers = EnumSet.of(Modifier.PUBLIC);
    String generatedClassName = typeDeclaration.getTypeName();
    ClassOrInterfaceDeclaration generatedClass = new ClassOrInterfaceDeclaration(classModifiers, false, generatedClassName);
    generatedClass.addImplementedType(GeneratedFact.class.getName());
    // Ref: {@link org.drools.core.factmodel.DefaultBeanClassBuilder} by default always receive is Serializable.
    generatedClass.addImplementedType(Serializable.class.getName());
    boolean hasSuper = typeDeclaration.getSuperTypeName() != null;
    if (hasSuper) {
        generatedClass.addExtendedType(typeDeclaration.getSuperTypeName());
    }
    List<AnnotationDescr> softAnnotations = new ArrayList<>();
    for (AnnotationDescr ann : typeDeclaration.getAnnotations()) {
        final String annFqn = Optional.ofNullable(ann.getFullyQualifiedName()).orElse(Optional.ofNullable(predefinedClassLevelAnnotation.get(ann.getName())).map(Class::getCanonicalName).orElse(null));
        if (annFqn != null) {
            NormalAnnotationExpr annExpr = generatedClass.addAndGetAnnotation(annFqn);
            ann.getValueMap().forEach((k, v) -> annExpr.addPair(k, getAnnotationValue(annFqn, k, v.toString())));
        } else {
            softAnnotations.add(ann);
        }
    }
    if (softAnnotations.size() > 0) {
        String softAnnDictionary = softAnnotations.stream().map(a -> "<dt>" + a.getName() + "</dt><dd>" + a.getValuesAsString() + "</dd>").collect(Collectors.joining());
        JavadocComment generatedClassJavadoc = new JavadocComment("<dl>" + softAnnDictionary + "</dl>");
        generatedClass.setJavadocComment(generatedClassJavadoc);
    }
    // No-args ctor
    generatedClass.addConstructor(Modifier.PUBLIC);
    List<Statement> equalsFieldStatement = new ArrayList<>();
    List<Statement> hashCodeFieldStatement = new ArrayList<>();
    List<String> toStringFieldStatement = new ArrayList<>();
    List<TypeFieldDescr> keyFields = new ArrayList<>();
    Collection<TypeFieldDescr> inheritedFields = findInheritedDeclaredFields(typeDeclaration, packageDescr);
    Collection<TypeFieldDescr> typeFields = typeDeclaration.getFields().values();
    if (!inheritedFields.isEmpty() || !typeDeclaration.getFields().isEmpty()) {
        ConstructorDeclaration fullArgumentsCtor = generatedClass.addConstructor(Modifier.PUBLIC);
        NodeList<Statement> ctorFieldStatement = NodeList.nodeList();
        MethodCallExpr superCall = new MethodCallExpr(null, "super");
        for (TypeFieldDescr typeFieldDescr : inheritedFields) {
            String fieldName = typeFieldDescr.getFieldName();
            addCtorArg(fullArgumentsCtor, typeFieldDescr.getPattern().getObjectType(), fieldName);
            superCall.addArgument(fieldName);
            if (typeFieldDescr.getAnnotation("key") != null) {
                keyFields.add(typeFieldDescr);
            }
        }
        ctorFieldStatement.add(new ExpressionStmt(superCall));
        int position = inheritedFields.size();
        for (TypeFieldDescr typeFieldDescr : typeFields) {
            String fieldName = typeFieldDescr.getFieldName();
            Type returnType = addCtorArg(fullArgumentsCtor, typeFieldDescr.getPattern().getObjectType(), fieldName);
            FieldDeclaration field = generatedClass.addField(returnType, fieldName, Modifier.PRIVATE);
            field.createSetter();
            field.addAndGetAnnotation(Position.class.getName()).addPair("value", "" + position++);
            MethodDeclaration getter = field.createGetter();
            equalsFieldStatement.add(generateEqualsForField(getter, fieldName));
            hashCodeFieldStatement.addAll(generateHashCodeForField(getter, fieldName));
            ctorFieldStatement.add(replaceFieldName(parseStatement("this.__fieldName = __fieldName;"), fieldName));
            toStringFieldStatement.add(format("+ {0}+{1}", quote(fieldName + "="), fieldName));
            if (typeFieldDescr.getAnnotation("key") != null) {
                keyFields.add(typeFieldDescr);
            }
        }
        fullArgumentsCtor.setBody(new BlockStmt(ctorFieldStatement));
        if (!keyFields.isEmpty() && keyFields.size() != inheritedFields.size() + typeFields.size()) {
            ConstructorDeclaration keyArgumentsCtor = generatedClass.addConstructor(Modifier.PUBLIC);
            NodeList<Statement> ctorKeyFieldStatement = NodeList.nodeList();
            MethodCallExpr keySuperCall = new MethodCallExpr(null, "super");
            ctorKeyFieldStatement.add(new ExpressionStmt(keySuperCall));
            for (TypeFieldDescr typeFieldDescr : keyFields) {
                String fieldName = typeFieldDescr.getFieldName();
                addCtorArg(keyArgumentsCtor, typeFieldDescr.getPattern().getObjectType(), fieldName);
                if (typeDeclaration.getFields().get(fieldName) != null) {
                    ctorKeyFieldStatement.add(replaceFieldName(parseStatement("this.__fieldName = __fieldName;"), fieldName));
                } else {
                    keySuperCall.addArgument(fieldName);
                }
            }
            keyArgumentsCtor.setBody(new BlockStmt(ctorKeyFieldStatement));
        }
        if (hasSuper) {
            generatedClass.addMember(generateEqualsMethod(generatedClassName, equalsFieldStatement));
            generatedClass.addMember(generateHashCodeMethod(hashCodeFieldStatement));
        }
    }
    generatedClass.addMember(generateToStringMethod(generatedClassName, toStringFieldStatement));
    return generatedClass;
}

Example 4 with MethodDeclaration

use of org.drools.javaparser.ast.body.MethodDeclaration in project drools by kiegroup.

the class POJOGenerator method generateToStringMethod.

private static MethodDeclaration generateToStringMethod(String generatedClassName, List<String> toStringFieldStatement) {
    final String header = format("return {0} + {1}", quote(generatedClassName), quote("( "));
    final String body = String.join(format("+ {0}", quote(", ")), toStringFieldStatement);
    final String close = format("+{0};", quote(" )"));
    final Statement toStringStatement = parseStatement(header + body + close);
    final Type returnType = JavaParser.parseType(String.class.getSimpleName());
    final MethodDeclaration equals = new MethodDeclaration(EnumSet.of(Modifier.PUBLIC), returnType, TO_STRING);
    equals.addAnnotation("Override");
    equals.setBody(new BlockStmt(NodeList.nodeList(toStringStatement)));
    return equals;
}

Example 5 with MethodDeclaration

use of org.drools.javaparser.ast.body.MethodDeclaration in project drools by kiegroup.

the class ConstraintParser method getDrlxParseResult.

private DrlxParseResult getDrlxParseResult(Class<?> patternType, String bindingId, String expression, DrlxExpression drlx, boolean isPositional) {
    Expression drlxExpr = drlx.getExpr();
    boolean isEnclosed = false;
    while (drlxExpr instanceof EnclosedExpr) {
        drlxExpr = ((EnclosedExpr) drlxExpr).getInner();
        isEnclosed = true;
    }
    if (drlxExpr instanceof MethodCallExpr && !((MethodCallExpr) drlxExpr).getScope().isPresent() && ((MethodCallExpr) drlxExpr).getNameAsString().equals("eval")) {
        drlxExpr = ((MethodCallExpr) drlxExpr).getArgument(0);
    }
    String exprId;
    if (GENERATE_EXPR_ID) {
        exprId = context.getExprId(patternType, expression);
    }
    if (drlxExpr instanceof BinaryExpr) {
        BinaryExpr binaryExpr = (BinaryExpr) drlxExpr;
        BinaryExpr.Operator operator = binaryExpr.getOperator();
        IndexUtil.ConstraintType decodeConstraintType = DrlxParseUtil.toConstraintType(operator);
        final ExpressionTyperContext expressionTyperContext = new ExpressionTyperContext();
        final ExpressionTyper expressionTyper = new ExpressionTyper(context, patternType, bindingId, isPositional, expressionTyperContext);
        TypedExpressionResult leftTypedExpressionResult = expressionTyper.toTypedExpression(binaryExpr.getLeft());
        Optional<TypedExpression> optLeft = leftTypedExpressionResult.getTypedExpression();
        if (!optLeft.isPresent()) {
            return new DrlxParseFail();
        }
        List<String> usedDeclarationsOnLeft = drlx.getBind() == null ? null : new ArrayList<>(expressionTyperContext.getUsedDeclarations());
        TypedExpressionResult rightExpressionResult = expressionTyper.toTypedExpression(binaryExpr.getRight());
        Optional<TypedExpression> optRight = rightExpressionResult.getTypedExpression();
        if (!optRight.isPresent()) {
            context.addCompilationError(new ParseExpressionErrorResult(drlxExpr));
            return new DrlxParseFail();
        }
        TypedExpression left = optLeft.get();
        TypedExpression right = optRight.get();
        Expression combo;
        if (left.isPrimitive()) {
            if (!right.getType().isPrimitive() && !Number.class.isAssignableFrom(right.getType()) && !Boolean.class.isAssignableFrom(right.getType()) && !String.class.isAssignableFrom(right.getType())) {
                context.addCompilationError(new InvalidExpressionErrorResult("Comparison operation requires compatible types. Found " + left.getType() + " and " + right.getType()));
                return new DrlxParseFail();
            }
            if (right.getExpression() instanceof StringLiteralExpr) {
                right.setExpression(new IntegerLiteralExpr(((StringLiteralExpr) right.getExpression()).asString()));
            } else if (right.getExpression() instanceof LiteralStringValueExpr) {
                right.setExpression(coerceLiteralExprToType((LiteralStringValueExpr) right.getExpression(), left.getType()));
            }
            combo = new BinaryExpr(left.getExpression(), right.getExpression(), operator);
        } else {
            coerceRightExpression(left, right);
            switch(operator) {
                case EQUALS:
                case NOT_EQUALS:
                    combo = getEqualityExpression(left, right, operator);
                    break;
                default:
                    if (left.getExpression() == null || right.getExpression() == null) {
                        context.addCompilationError(new ParseExpressionErrorResult(drlxExpr));
                        return new DrlxParseFail();
                    }
                    combo = handleSpecialComparisonCases(operator, left, right);
            }
        }
        for (Expression e : leftTypedExpressionResult.getPrefixExpressions()) {
            combo = new BinaryExpr(e, combo, BinaryExpr.Operator.AND);
        }
        boolean isBetaNode = false;
        if (right.getExpression() instanceof BinaryExpr) {
            if (((BinaryExpr) right.getExpression()).getRight() instanceof MethodCallExpr) {
                isBetaNode = true;
            }
        } else if (right.getExpression() instanceof NameExpr) {
            isBetaNode = true;
        }
        if (isEnclosed) {
            combo = new EnclosedExpr(combo);
        }
        return new DrlxParseSuccess(patternType, exprId, bindingId, combo, left.getType()).setDecodeConstraintType(decodeConstraintType).setUsedDeclarations(expressionTyperContext.getUsedDeclarations()).setUsedDeclarationsOnLeft(usedDeclarationsOnLeft).setReactOnProperties(expressionTyperContext.getReactOnProperties()).setLeft(left).setRight(right).setBetaNode(isBetaNode);
    }
    if (drlxExpr instanceof UnaryExpr) {
        UnaryExpr unaryExpr = (UnaryExpr) drlxExpr;
        TypedExpressionResult typedExpressionResult = new ExpressionTyper(context, patternType, bindingId, isPositional).toTypedExpression(unaryExpr);
        return typedExpressionResult.getTypedExpression().<DrlxParseResult>map(left -> {
            return new DrlxParseSuccess(patternType, exprId, bindingId, left.getExpression(), left.getType()).setUsedDeclarations(typedExpressionResult.getUsedDeclarations()).setReactOnProperties(typedExpressionResult.getReactOnProperties()).setLeft(left);
        }).orElse(new DrlxParseFail());
    }
    if (drlxExpr instanceof PointFreeExpr) {
        PointFreeExpr pointFreeExpr = (PointFreeExpr) drlxExpr;
        TypedExpressionResult typedExpressionResult = new ExpressionTyper(context, patternType, bindingId, isPositional).toTypedExpression(pointFreeExpr);
        final Optional<TypedExpression> optTypedExpression = typedExpressionResult.getTypedExpression();
        return optTypedExpression.<DrlxParseResult>map(typedExpression -> {
            final Expression returnExpression = typedExpression.getExpression();
            final Class<?> returnType = typedExpression.getType();
            return new DrlxParseSuccess(patternType, exprId, bindingId, returnExpression, returnType).setUsedDeclarations(typedExpressionResult.getUsedDeclarations()).setReactOnProperties(typedExpressionResult.getReactOnProperties()).setLeft(typedExpression.getLeft()).setStatic(typedExpression.isStatic()).setValidExpression(true);
        }).orElse(new DrlxParseFail());
    }
    if (drlxExpr instanceof MethodCallExpr) {
        MethodCallExpr methodCallExpr = (MethodCallExpr) drlxExpr;
        // when the methodCallExpr will be placed in the model/DSL, any parameter being a "this" need to be implemented as _this by convention.
        List<ThisExpr> rewriteThisExprs = recurseCollectArguments(methodCallExpr).stream().filter(ThisExpr.class::isInstance).map(ThisExpr.class::cast).collect(Collectors.toList());
        for (ThisExpr t : rewriteThisExprs) {
            methodCallExpr.replace(t, new NameExpr("_this"));
        }
        Optional<MethodDeclaration> functionCall = packageModel.getFunctions().stream().filter(m -> m.getName().equals(methodCallExpr.getName())).findFirst();
        if (functionCall.isPresent()) {
            Class<?> returnType = DrlxParseUtil.getClassFromContext(context.getTypeResolver(), functionCall.get().getType().asString());
            NodeList<Expression> arguments = methodCallExpr.getArguments();
            List<String> usedDeclarations = new ArrayList<>();
            for (Expression arg : arguments) {
                if (arg instanceof NameExpr && !arg.toString().equals("_this")) {
                    usedDeclarations.add(arg.toString());
                } else if (arg instanceof MethodCallExpr) {
                    TypedExpressionResult typedExpressionResult = new ExpressionTyper(context, null, bindingId, isPositional).toTypedExpression(arg);
                    usedDeclarations.addAll(typedExpressionResult.getUsedDeclarations());
                }
            }
            return new DrlxParseSuccess(patternType, exprId, bindingId, methodCallExpr, returnType).setUsedDeclarations(usedDeclarations);
        } else if (methodCallExpr.getScope().isPresent() && methodCallExpr.getScope().get() instanceof StringLiteralExpr) {
            TypedExpressionResult typedExpressionResult = new ExpressionTyper(context, String.class, bindingId, isPositional).toTypedExpression(methodCallExpr);
            Optional<TypedExpression> optConverted = typedExpressionResult.getTypedExpression();
            return optConverted.<DrlxParseResult>map(converted -> {
                return new DrlxParseSuccess(String.class, exprId, bindingId, converted.getExpression(), converted.getType()).setLeft(converted).setUsedDeclarations(typedExpressionResult.getUsedDeclarations());
            }).orElse(new DrlxParseFail());
        } else if (patternType != null) {
            NameExpr _this = new NameExpr("_this");
            TypedExpression converted = DrlxParseUtil.toMethodCallWithClassCheck(context, methodCallExpr, bindingId, patternType, context.getTypeResolver());
            Expression withThis = DrlxParseUtil.prepend(_this, converted.getExpression());
            return new DrlxParseSuccess(patternType, exprId, bindingId, withThis, converted.getType()).setLeft(converted);
        } else {
            return new DrlxParseSuccess(patternType, exprId, bindingId, methodCallExpr, null);
        }
    }
    if (drlxExpr instanceof FieldAccessExpr) {
        FieldAccessExpr fieldCallExpr = (FieldAccessExpr) drlxExpr;
        NameExpr _this = new NameExpr("_this");
        TypedExpression converted = DrlxParseUtil.toMethodCallWithClassCheck(context, fieldCallExpr, bindingId, patternType, context.getTypeResolver());
        Expression withThis = DrlxParseUtil.prepend(_this, converted.getExpression());
        return new DrlxParseSuccess(patternType, exprId, bindingId, withThis, converted.getType()).setLeft(converted);
    }
    if (drlxExpr instanceof NameExpr) {
        NameExpr nameExpr = (NameExpr) drlxExpr;
        NameExpr _this = new NameExpr("_this");
        TypedExpression converted = DrlxParseUtil.toMethodCallWithClassCheck(context, nameExpr, bindingId, patternType, context.getTypeResolver());
        Expression withThis = DrlxParseUtil.prepend(_this, converted.getExpression());
        if (drlx.getBind() != null) {
            return new DrlxParseSuccess(patternType, exprId, bindingId, null, converted.getType()).setLeft(new TypedExpression(withThis, converted.getType())).addReactOnProperty(lcFirst(nameExpr.getNameAsString()));
        } else {
            return new DrlxParseSuccess(patternType, exprId, bindingId, withThis, converted.getType()).addReactOnProperty(nameExpr.getNameAsString());
        }
    }
    if (drlxExpr instanceof OOPathExpr) {
        return new DrlxParseSuccess(patternType, exprId, bindingId, drlxExpr, null);
    }
    if (drlxExpr instanceof LiteralExpr) {
        return new DrlxParseSuccess(patternType, exprId, bindingId, drlxExpr, getLiteralExpressionType(((LiteralExpr) drlxExpr)));
    }
    // TODO
    throw new UnsupportedOperationException("Unknown expression: " + toDrlx(drlxExpr));
}