Java Code Examples for org.codehaus.groovy.syntax.Token#newSymbol()

private Expression transformBinaryExpression(final BinaryExpression exp) {
    final int op = exp.getOperation().getType();
    int token = TokenUtil.removeAssignment(op);
    if (token == op) {
        // no transform needed
        return super.transform(exp);
    }
    BinaryExpression operation = new BinaryExpression(
            exp.getLeftExpression(),
            Token.newSymbol(token, -1, -1),
            exp.getRightExpression()
    );
    operation.setSourcePosition(exp);
    BinaryExpression result = new BinaryExpression(
            exp.getLeftExpression(),
            Token.newSymbol(EQUAL, -1, -1),
            operation
    );
    result.setSourcePosition(exp);
    return result;
}
 

private static Statement createSuperFallback(MethodNode forwarderMethod, ClassNode returnType) {
    ArgumentListExpression args = new ArgumentListExpression();
    Parameter[] forwarderMethodParameters = forwarderMethod.getParameters();
    for (final Parameter forwarderMethodParameter : forwarderMethodParameters) {
        args.addExpression(new VariableExpression(forwarderMethodParameter));
    }
    BinaryExpression instanceOfExpr = new BinaryExpression(new VariableExpression("this"), Token.newSymbol(Types.KEYWORD_INSTANCEOF, -1, -1), new ClassExpression(Traits.GENERATED_PROXY_CLASSNODE));
    MethodCallExpression superCall = new MethodCallExpression(
            new VariableExpression("super"),
            forwarderMethod.getName(),
            args
    );
    superCall.setImplicitThis(false);
    CastExpression proxyReceiver = new CastExpression(Traits.GENERATED_PROXY_CLASSNODE, new VariableExpression("this"));
    MethodCallExpression getProxy = new MethodCallExpression(proxyReceiver, "getProxyTarget", ArgumentListExpression.EMPTY_ARGUMENTS);
    getProxy.setImplicitThis(true);
    StaticMethodCallExpression proxyCall = new StaticMethodCallExpression(
            ClassHelper.make(InvokerHelper.class),
            "invokeMethod",
            new ArgumentListExpression(getProxy, new ConstantExpression(forwarderMethod.getName()), new ArrayExpression(ClassHelper.OBJECT_TYPE, args.getExpressions()))
    );
    IfStatement stmt = new IfStatement(
            new BooleanExpression(instanceOfExpr),
            new ExpressionStatement(new CastExpression(returnType,proxyCall)),
            new ExpressionStatement(superCall)
    );
    return stmt;
}
 

private TernaryExpression createStaticReceiver(final Expression receiver) {
    return new TernaryExpression(
            new BooleanExpression(new BinaryExpression(
                    receiver,
                    Token.newSymbol(Types.KEYWORD_INSTANCEOF, -1, -1),
                    new ClassExpression(ClassHelper.CLASS_Type)
            )),
            receiver,
            new MethodCallExpression(createFieldHelperReceiver(), "getClass", ArgumentListExpression.EMPTY_ARGUMENTS)
    );
}
 

protected void addFieldInitialization(List list, List staticList, FieldNode fieldNode,
                                      boolean isEnumClassNode, List initStmtsAfterEnumValuesInit, Set explicitStaticPropsInEnum) {
    Expression expression = fieldNode.getInitialExpression();
    if (expression != null) {
        final FieldExpression fe = new FieldExpression(fieldNode);
        if (fieldNode.getType().equals(ClassHelper.REFERENCE_TYPE) && ((fieldNode.getModifiers() & ACC_SYNTHETIC) != 0)) {
            fe.setUseReferenceDirectly(true);
        }
        ExpressionStatement statement =
                new ExpressionStatement(
                        new BinaryExpression(
                                fe,
                                Token.newSymbol(Types.EQUAL, fieldNode.getLineNumber(), fieldNode.getColumnNumber()),
                                expression));
        if (fieldNode.isStatic()) {
            // GROOVY-3311: pre-defined constants added by groovy compiler for numbers/characters should be
            // initialized first so that code dependent on it does not see their values as empty
            Expression initialValueExpression = fieldNode.getInitialValueExpression();
            Expression transformed = transformInlineConstants(initialValueExpression, fieldNode.getType());
            if (transformed instanceof ConstantExpression) {
                ConstantExpression cexp = (ConstantExpression) transformed;
                cexp = transformToPrimitiveConstantIfPossible(cexp);
                if (fieldNode.isFinal() && ClassHelper.isStaticConstantInitializerType(cexp.getType()) && cexp.getType().equals(fieldNode.getType())) {
                    fieldNode.setInitialValueExpression(transformed);
                    return; // GROOVY-5150: primitive type constants will be initialized directly
                }
                staticList.add(0, statement);
            } else {
                staticList.add(statement);
            }
            fieldNode.setInitialValueExpression(null); // to avoid double initialization in case of several constructors
            /*
             * If it is a statement for an explicitly declared static field inside an enum, store its
             * reference. For enums, they need to be handled differently as such init statements should
             * come after the enum values have been initialized inside <clinit> block. GROOVY-3161.
             */
            if (isEnumClassNode && explicitStaticPropsInEnum.contains(fieldNode.getName())) {
                initStmtsAfterEnumValuesInit.add(statement);
            }
        } else {
            list.add(statement);
        }
    }
}
 

public void testLoop() throws Exception {
    ClassNode classNode = new ClassNode("Foo", ACC_PUBLIC, ClassHelper.OBJECT_TYPE);
    classNode.addConstructor(new ConstructorNode(ACC_PUBLIC, null));
    classNode.addProperty(new PropertyNode("bar", ACC_PUBLIC, ClassHelper.STRING_TYPE, classNode, null, null, null));

    classNode.addProperty(new PropertyNode("result", ACC_PUBLIC, ClassHelper.STRING_TYPE, classNode, null, null, null));

    BooleanExpression expression =
            new BooleanExpression(
                    new BinaryExpression(
                            new FieldExpression(
                                    new FieldNode("bar", ACC_PRIVATE, ClassHelper.STRING_TYPE, classNode, ConstantExpression.NULL)),
                            Token.newSymbol("==", 0, 0),
                            new ConstantExpression("abc")));

    Statement trueStatement =
            new ExpressionStatement(
                    new BinaryExpression(
                            new FieldExpression(
                                    new FieldNode("result", ACC_PRIVATE, ClassHelper.STRING_TYPE, classNode, ConstantExpression.NULL)),
                            Token.newSymbol("=", 0, 0),
                            new ConstantExpression("worked")));

    Statement falseStatement = createPrintlnStatement(new ConstantExpression("false"));

    IfStatement statement = new IfStatement(expression, trueStatement, falseStatement);
    classNode.addMethod(new MethodNode("ifDemo", ACC_PUBLIC, ClassHelper.VOID_TYPE, Parameter.EMPTY_ARRAY, ClassNode.EMPTY_ARRAY, statement));

    Class fooClass = loadClass(classNode);
    assertTrue("Loaded a new class", fooClass != null);

    Object bean = fooClass.getDeclaredConstructor().newInstance();
    assertTrue("Managed to create bean", bean != null);

    assertSetProperty(bean, "bar", "abc");

    System.out.println("################ Now about to invoke method");

    Object[] array = {
    };

    InvokerHelper.invokeMethod(bean, "ifDemo", array);

    System.out.println("################ Done");

    assertGetProperty(bean, "result", "worked");
}