Examples with ObjectCreationExpr com.github.javaparser.ast.expr.ObjectCreationExpr used on opensource projects

Example 31 with ObjectCreationExpr

use of com.github.javaparser.ast.expr.ObjectCreationExpr in project drools by kiegroup.

the class ExpressionTyper method toTypedExpressionRec.

private Optional<TypedExpression> toTypedExpressionRec(Expression drlxExpr) {
    Class<?> typeCursor = patternType;
    if (drlxExpr instanceof FullyQualifiedInlineCastExpr) {
        return toTypedExpressionRec(transformFullyQualifiedInlineCastExpr(ruleContext.getTypeResolver(), (FullyQualifiedInlineCastExpr) drlxExpr));
    }
    if (drlxExpr instanceof EnclosedExpr) {
        Expression inner = ((EnclosedExpr) drlxExpr).getInner();
        Optional<TypedExpression> typedExpression = toTypedExpressionRec(inner);
        return typedExpression.map(t -> t.cloneWithNewExpression(new EnclosedExpr(t.getExpression())));
    }
    if (drlxExpr instanceof MethodCallExpr) {
        MethodCallExpr methodExpr = (MethodCallExpr) drlxExpr;
        Expression expr = methodExpr;
        if (isEval(methodExpr.getNameAsString(), methodExpr.getScope(), methodExpr.getArguments())) {
            expr = methodExpr.getArgument(0);
        }
        drlxExpr = expr;
    }
    if (drlxExpr instanceof NullSafeMethodCallExpr) {
        NullSafeMethodCallExpr methodExpr = (NullSafeMethodCallExpr) drlxExpr;
        Expression expr = methodExpr;
        if (isEval(methodExpr.getNameAsString(), methodExpr.getScope(), methodExpr.getArguments())) {
            expr = methodExpr.getArgument(0);
        }
        drlxExpr = expr;
    }
    if (drlxExpr instanceof UnaryExpr) {
        UnaryExpr unaryExpr = (UnaryExpr) drlxExpr;
        Optional<TypedExpression> optTypedExpr = toTypedExpressionRec(unaryExpr.getExpression());
        return optTypedExpr.map(typedExpr -> new TypedExpression(new UnaryExpr(typedExpr.getExpression(), unaryExpr.getOperator()), typedExpr.getType()));
    }
    if (drlxExpr instanceof BinaryExpr) {
        BinaryExpr binaryExpr = (BinaryExpr) drlxExpr;
        BinaryExpr.Operator operator = binaryExpr.getOperator();
        Optional<TypedExpression> optLeft = toTypedExpressionRec(binaryExpr.getLeft());
        Optional<TypedExpression> optRight = toTypedExpressionRec(binaryExpr.getRight());
        return optLeft.flatMap(left -> optRight.flatMap(right -> {
            final BinaryExpr combo = new BinaryExpr(left.getExpression(), right.getExpression(), operator);
            return of(new TypedExpression(combo, left.getType()));
        }));
    }
    if (drlxExpr instanceof HalfBinaryExpr) {
        final Expression binaryExpr = trasformHalfBinaryToBinary(drlxExpr);
        if (binaryExpr instanceof BinaryExpr && ((BinaryExpr) binaryExpr).getLeft() == drlxExpr) {
            throw new CannotTypeExpressionException("left leaf is the same : drlxExpr = " + drlxExpr + ", originalExpression = " + context.getOriginalExpression());
        }
        return toTypedExpressionRec(binaryExpr);
    }
    if (drlxExpr instanceof LiteralExpr) {
        drlxExpr = normalizeDigit(drlxExpr);
        return of(new TypedExpression(drlxExpr, getLiteralExpressionType((LiteralExpr) drlxExpr)));
    }
    if (drlxExpr instanceof ThisExpr || (drlxExpr instanceof NameExpr && THIS_PLACEHOLDER.equals(printNode(drlxExpr)))) {
        return of(new TypedExpression(new NameExpr(THIS_PLACEHOLDER), patternType));
    }
    if (drlxExpr instanceof CastExpr) {
        CastExpr castExpr = (CastExpr) drlxExpr;
        Optional<TypedExpression> optTypedExpr = toTypedExpressionRec(castExpr.getExpression());
        return optTypedExpr.map(typedExpr -> new TypedExpression(new CastExpr(castExpr.getType(), typedExpr.getExpression()), getClassFromContext(ruleContext.getTypeResolver(), castExpr.getType().asString())));
    }
    if (drlxExpr instanceof NameExpr) {
        return nameExpr(((NameExpr) drlxExpr).getNameAsString(), typeCursor);
    }
    if (drlxExpr instanceof FieldAccessExpr || drlxExpr instanceof MethodCallExpr || drlxExpr instanceof ObjectCreationExpr || drlxExpr instanceof NullSafeFieldAccessExpr || drlxExpr instanceof NullSafeMethodCallExpr || drlxExpr instanceof MapCreationLiteralExpression || drlxExpr instanceof ListCreationLiteralExpression) {
        return toTypedExpressionFromMethodCallOrField(drlxExpr).getTypedExpression();
    }
    if (drlxExpr instanceof PointFreeExpr) {
        final PointFreeExpr pointFreeExpr = (PointFreeExpr) drlxExpr;
        Optional<TypedExpression> optLeft = toTypedExpressionRec(pointFreeExpr.getLeft());
        Optional<TypedExpression> optRight = pointFreeExpr.getRight().size() == 1 ? toTypedExpressionRec(pointFreeExpr.getRight().get(0)) : Optional.empty();
        OperatorSpec opSpec = getOperatorSpec(pointFreeExpr.getRight(), pointFreeExpr.getOperator());
        return optLeft.map(left -> new TypedExpression(opSpec.getExpression(ruleContext, pointFreeExpr, left, this), left.getType()).setStatic(opSpec.isStatic()).setLeft(left).setRight(optRight.orElse(null)));
    }
    if (drlxExpr instanceof HalfPointFreeExpr) {
        final HalfPointFreeExpr halfPointFreeExpr = (HalfPointFreeExpr) drlxExpr;
        Expression parentLeft = findLeftLeafOfNameExprTraversingParent(halfPointFreeExpr);
        if (parentLeft == halfPointFreeExpr) {
            throw new CannotTypeExpressionException("left leaf is the same : halfPointFreeExpr = " + halfPointFreeExpr + ", originalExpression = " + context.getOriginalExpression());
        }
        Optional<TypedExpression> optLeft = toTypedExpressionRec(parentLeft);
        OperatorSpec opSpec = getOperatorSpec(halfPointFreeExpr.getRight(), halfPointFreeExpr.getOperator());
        final PointFreeExpr transformedToPointFree = new PointFreeExpr(halfPointFreeExpr.getTokenRange().orElseThrow(() -> new IllegalStateException("Token range is not present!")), parentLeft, halfPointFreeExpr.getRight(), halfPointFreeExpr.getOperator(), halfPointFreeExpr.isNegated(), halfPointFreeExpr.getArg1(), halfPointFreeExpr.getArg2(), halfPointFreeExpr.getArg3(), halfPointFreeExpr.getArg4());
        return optLeft.map(left -> new TypedExpression(opSpec.getExpression(ruleContext, transformedToPointFree, left, this), left.getType()).setStatic(opSpec.isStatic()).setLeft(left));
    }
    if (drlxExpr instanceof ArrayAccessExpr) {
        final ArrayAccessExpr arrayAccessExpr = (ArrayAccessExpr) drlxExpr;
        if (Map.class.isAssignableFrom(typeCursor)) {
            return createMapAccessExpression(arrayAccessExpr.getIndex(), arrayAccessExpr.getName() instanceof ThisExpr ? new NameExpr(THIS_PLACEHOLDER) : arrayAccessExpr.getName(), Map.class);
        } else if (arrayAccessExpr.getName() instanceof FieldAccessExpr) {
            Optional<TypedExpression> typedExpression = toTypedExpressionFromMethodCallOrField(drlxExpr).getTypedExpression();
            typedExpression.ifPresent(te -> {
                final Expression originalExpression = te.getExpression();
                DrlxParseUtil.removeRootNode(originalExpression);
            });
            return typedExpression;
        } else {
            String name = printNode(drlxExpr.asArrayAccessExpr().getName());
            final Optional<TypedExpression> nameExpr = nameExpr(name, typeCursor);
            Expression indexExpr = toTypedExpressionFromMethodCallOrField(arrayAccessExpr.getIndex()).getTypedExpression().orElseThrow(() -> new NoSuchElementException("TypedExpressionResult doesn't contain TypedExpression!")).getExpression();
            return nameExpr.flatMap(te -> transformToArrayOrMapExpressionWithType(indexExpr, te));
        }
    }
    if (drlxExpr instanceof InstanceOfExpr) {
        InstanceOfExpr instanceOfExpr = (InstanceOfExpr) drlxExpr;
        ruleContext.addInlineCastType(printNode(instanceOfExpr.getExpression()), instanceOfExpr.getType());
        return toTypedExpressionRec(instanceOfExpr.getExpression()).map(e -> new TypedExpression(new InstanceOfExpr(e.getExpression(), instanceOfExpr.getType()), boolean.class));
    }
    if (drlxExpr instanceof ClassExpr) {
        return of(new TypedExpression(drlxExpr, Class.class));
    }
    if (drlxExpr instanceof InlineCastExpr) {
        return toTypedExpressionFromMethodCallOrField(drlxExpr).getTypedExpression();
    }
    if (drlxExpr instanceof OOPathExpr) {
        Class<?> type = patternType;
        for (OOPathChunk chunk : ((OOPathExpr) drlxExpr).getChunks()) {
            final String fieldName = chunk.getField().toString();
            final TypedExpression callExpr = DrlxParseUtil.nameExprToMethodCallExpr(fieldName, type, null, ruleContext);
            if (callExpr == null) {
                return empty();
            }
            Class<?> fieldType = (chunk.getInlineCast() != null) ? DrlxParseUtil.getClassFromContext(ruleContext.getTypeResolver(), chunk.getInlineCast().toString()) : callExpr.getRawClass();
            if (!chunk.isSingleValue() && Iterable.class.isAssignableFrom(fieldType) || isDataSource(fieldType)) {
                type = extractGenericType(type, ((MethodCallExpr) callExpr.getExpression()).getName().toString());
            } else {
                type = fieldType;
            }
        }
        return of(new TypedExpression(drlxExpr, type));
    }
    if (drlxExpr.isAssignExpr()) {
        AssignExpr assignExpr = drlxExpr.asAssignExpr();
        final Expression rightSide = assignExpr.getValue();
        return toTypedExpressionRec(rightSide).map(e -> {
            final AssignExpr newExpression = new AssignExpr(assignExpr.getTarget(), e.getExpression(), assignExpr.getOperator());
            return new TypedExpression(newExpression, e.getType());
        });
    }
    throw new UnsupportedOperationException();
}

Example 32 with ObjectCreationExpr

use of com.github.javaparser.ast.expr.ObjectCreationExpr in project drools by kiegroup.

the class ConsequenceDSLGenerator method generateMethod.

private static void generateMethod(int arity) {
    String template = "    public static <A, B> ConsequenceBuilder._2<A, B> on(Variable<A> decl1, Variable<B> decl2) {\n" + "        return new ConsequenceBuilder._2(decl1, decl2);\n" + "    }";
    MethodDeclaration bodyDeclaration = (MethodDeclaration) StaticJavaParser.parseBodyDeclaration(template);
    ClassOrInterfaceType arityType = toClassOrInterfaceType(arityName(arity));
    List<Parameter> parameters = genericTypeStream(arity, genericTypeIndex -> {
        ClassOrInterfaceType type = toClassOrInterfaceType(String.format("Variable<%s>", argumentTypeName(genericTypeIndex)));
        return new Parameter(type, argName(genericTypeIndex));
    }).collect(Collectors.toList());
    bodyDeclaration.setParameters(nodeList(parameters));
    ClassOrInterfaceType arityTypeWithNameSpace = toClassOrInterfaceType("ConsequenceBuilder." + arityName(arity));
    List<Expression> argumentCall = genericTypeStream(arity, genericTypeIndex -> new NameExpr(argName(genericTypeIndex))).collect(Collectors.toList());
    bodyDeclaration.setParameters(nodeList(parameters));
    Expression expr = new ObjectCreationExpr(null, arityTypeWithNameSpace, nodeList(argumentCall));
    bodyDeclaration.setBody(new BlockStmt(nodeList(new ReturnStmt(expr))));
    List<TypeParameter> genericTypeParameterList = genericTypeStream(arity, ConsequenceDSLGenerator::createTypeParameter).collect(Collectors.toList());
    List<Type> genericTypeList = genericTypeStream(arity, ConsequenceDSLGenerator::parseType).collect(Collectors.toList());
    ClassOrInterfaceType newType = toClassOrInterfaceType("ConsequenceBuilder." + arityName(arity));
    newType.setTypeArguments(nodeList(genericTypeList));
    bodyDeclaration.setType(newType);
    arityType.setTypeArguments(nodeList(genericTypeList));
    bodyDeclaration.setTypeParameters(nodeList(genericTypeParameterList));
    System.out.println(bodyDeclaration.toString());
    System.out.println();
}

Example 33 with ObjectCreationExpr

use of com.github.javaparser.ast.expr.ObjectCreationExpr in project drools by kiegroup.

the class ExpressionTyper method mapCreationLiteral.

private Optional<TypedExpressionCursor> mapCreationLiteral(MapCreationLiteralExpression mapCreationLiteralExpression, java.lang.reflect.Type originalTypeCursor) {
    ClassOrInterfaceType hashMapType = (ClassOrInterfaceType) parseType(HashMap.class.getCanonicalName());
    BlockStmt initializationStmt = new BlockStmt();
    InitializerDeclaration body = new InitializerDeclaration(false, initializationStmt);
    ObjectCreationExpr newHashMapExpr = new ObjectCreationExpr(null, hashMapType, nodeList(), nodeList(), nodeList(body));
    for (Expression e : mapCreationLiteralExpression.getExpressions()) {
        MapCreationLiteralExpressionKeyValuePair expr = (MapCreationLiteralExpressionKeyValuePair) e;
        Expression key = resolveCreationLiteralNameExpr(originalTypeCursor, expr.getKey());
        Expression value = resolveCreationLiteralNameExpr(originalTypeCursor, expr.getValue());
        initializationStmt.addStatement(new MethodCallExpr(null, "put", nodeList(key, value)));
    }
    return of(new TypedExpressionCursor(newHashMapExpr, HashMap.class));
}

Example 34 with ObjectCreationExpr

use of com.github.javaparser.ast.expr.ObjectCreationExpr in project drools by kiegroup.

the class FlowDSLQueryGenerator method queryNameClassArg.

private void queryNameClassArg(ClassOrInterfaceDeclaration clazz) {
    MethodDeclaration query1 = clazz.addMethod(QUERY, Modifier.Keyword.PUBLIC, Modifier.Keyword.STATIC);
    query1.addParameter(STRINGLITERAL, "name");
    BlockStmt stmts = new BlockStmt();
    NodeList<Type> typeArguments = nodeList();
    NodeList<TypeParameter> typeParameters = nodeList();
    NodeList<Expression> arguments = nodeList();
    ClassOrInterfaceType queryCallViewItemImpl = queryDefImpl();
    ObjectCreationExpr objCreationExpr = new ObjectCreationExpr(null, queryCallViewItemImpl, arguments);
    objCreationExpr.setDiamondOperator();
    stmts.addStatement(new ReturnStmt(objCreationExpr));
    objCreationExpr.addArgument(new NameExpr(VIEWBUILDER));
    objCreationExpr.addArgument("name");
    rangeArity().forEach(i -> {
        String genericTypeName = stringWithIndex("T", i);
        String type = stringWithIndex("type", i);
        String name = stringWithIndexInside(i);
        typeArguments.add(parseType(genericTypeName));
        arguments.add(new NameExpr(type));
        arguments.add(new NameExpr(name));
        String classGenericType = genericType(genericTypeName);
        Type genericType = parseType(classGenericType);
        query1.addParameter(genericType, type);
        query1.addParameter(stringType(), name);
        typeParameters.add(new TypeParameter(genericTypeName));
    });
    query1.setTypeParameters(typeParameters);
    query1.setBody(stmts);
    ClassOrInterfaceType type = queryDef();
    type.setTypeArguments(typeArguments);
    query1.setType(type);
}

Example 35 with ObjectCreationExpr

use of com.github.javaparser.ast.expr.ObjectCreationExpr in project drools by kiegroup.

the class FlowDSLQueryGenerator method queryPkgNameClassArg.

private void queryPkgNameClassArg(ClassOrInterfaceDeclaration clazz) {
    MethodDeclaration query1 = clazz.addMethod(QUERY, Modifier.Keyword.PUBLIC, Modifier.Keyword.STATIC);
    query1.addParameter(STRINGLITERAL, "pkg");
    query1.addParameter(STRINGLITERAL, "name");
    BlockStmt stmts = new BlockStmt();
    NodeList<Type> typeArguments = nodeList();
    NodeList<TypeParameter> typeParameters = nodeList();
    NodeList<Expression> arguments = nodeList();
    ClassOrInterfaceType queryCallViewItemImpl = queryDefImpl();
    ObjectCreationExpr objCreationExpr = new ObjectCreationExpr(null, queryCallViewItemImpl, arguments);
    objCreationExpr.setDiamondOperator();
    stmts.addStatement(new ReturnStmt(objCreationExpr));
    objCreationExpr.addArgument(new NameExpr(VIEWBUILDER));
    objCreationExpr.addArgument("pkg");
    objCreationExpr.addArgument("name");
    rangeArity().forEach(i -> {
        String genericTypeName = stringWithIndex("T", i);
        String type = stringWithIndex("type", i);
        String name = stringWithIndexInside(i);
        typeArguments.add(parseType(genericTypeName));
        arguments.add(new NameExpr(type));
        arguments.add(new NameExpr(name));
        String classGenericType = genericType(genericTypeName);
        Type genericType = parseType(classGenericType);
        query1.addParameter(genericType, type);
        query1.addParameter(stringType(), name);
        typeParameters.add(new TypeParameter(genericTypeName));
    });
    query1.setTypeParameters(typeParameters);
    query1.setBody(stmts);
    ClassOrInterfaceType type = queryDef();
    type.setTypeArguments(typeArguments);
    query1.setType(type);
}