Package org.codehaus.groovy.ast.stmt

Examples of org.codehaus.groovy.ast.stmt.Statement

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    protected void assertIterate(String methodName, Expression listExpression) 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));

        Statement loopStatement = createPrintlnStatement(new VariableExpression("i"));

        BlockStatement block = new BlockStatement();
        block.addStatement(new ExpressionStatement(new DeclarationExpression(new VariableExpression("list"), Token.newSymbol("=", 0, 0), listExpression)));
        block.addStatement(new ForStatement(new Parameter(ClassHelper.DYNAMIC_TYPE, "i"), new VariableExpression("list"), loopStatement));
        classNode.addMethod(new MethodNode(methodName, ACC_PUBLIC, ClassHelper.VOID_TYPE, Parameter.EMPTY_ARRAY, ClassNode.EMPTY_ARRAY, block));
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    public void testMethods() throws Exception {
        ClassNode classNode = new ClassNode("Foo", ACC_PUBLIC, ClassHelper.OBJECT_TYPE);
        classNode.addConstructor(new ConstructorNode(ACC_PUBLIC, null));

        Statement statementA = new ReturnStatement(new ConstantExpression("calledA"));
        Statement statementB = new ReturnStatement(new ConstantExpression("calledB"));
        Statement emptyStatement = new BlockStatement();

        classNode.addMethod(new MethodNode("a", ACC_PUBLIC, ClassHelper.OBJECT_TYPE, Parameter.EMPTY_ARRAY, ClassNode.EMPTY_ARRAY, statementA));
        classNode.addMethod(new MethodNode("b", ACC_PUBLIC, null, Parameter.EMPTY_ARRAY, ClassNode.EMPTY_ARRAY, statementB));

        classNode.addMethod(new MethodNode("noReturnMethodA", ACC_PUBLIC, null, Parameter.EMPTY_ARRAY, ClassNode.EMPTY_ARRAY, emptyStatement));
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        }
    }

    private void addInitContextClassLoaderIfNeeded(ClassNode classNode) {
        if (initContextClassLoader) {
            Statement initStatement = new ExpressionStatement(
                    new MethodCallExpression(
                            new StaticMethodCallExpression(THREAD_CLASSNODE, "currentThread", ArgumentListExpression.EMPTY_ARGUMENTS),
                            "setContextClassLoader",
                            new MethodCallExpression(
                                    new MethodCallExpression(VariableExpression.THIS_EXPRESSION, "getClass", MethodCallExpression.NO_ARGUMENTS),
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                    doAddMethod(new MethodNode(name, modifiers, returnType, parameters, exceptions, code));
                }

                protected void addConstructor(Parameter[] newParams, ConstructorNode ctor, Statement code, ClassNode node) {
                    if (code instanceof ExpressionStatement) {//GROOVY-4508
                        Statement temp = code;
                        code = new BlockStatement();
                        ((BlockStatement) code).addStatement(temp);
                    }
                    ConstructorNode ctrNode = new ConstructorNode(ctor.getModifiers(), newParams, ctor.getExceptions(), code);
                    ctrNode.setDeclaringClass(node);
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        }
        out.println(";");
    }

    private ConstructorCallExpression getConstructorCallExpression(ConstructorNode constructorNode) {
        Statement code = constructorNode.getCode();
        if (!(code instanceof BlockStatement))
            return null;

        BlockStatement block = (BlockStatement) code;
        List stats = block.getStatements();
        if (stats == null || stats.size() == 0)
            return null;

        Statement stat = (Statement) stats.get(0);
        if (!(stat instanceof ExpressionStatement))
            return null;

        Expression expr = ((ExpressionStatement) stat).getExpression();
        if (!(expr instanceof ConstructorCallExpression))
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                                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);
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        ClassNode classNode = new ClassNode("Foo", ACC_PUBLIC, ClassHelper.OBJECT_TYPE);
        classNode.addConstructor(new ConstructorNode(ACC_PUBLIC, null));

        Parameter[] parameters = {new Parameter(ClassHelper.OBJECT_TYPE, "coll")};

        Statement statement = createPrintlnStatement(new VariableExpression("coll"));
        classNode.addMethod(new MethodNode("oneParamDemo", ACC_PUBLIC, ClassHelper.VOID_TYPE, parameters, ClassNode.EMPTY_ARRAY, statement));

        Class fooClass = loadClass(classNode);
        assertTrue("Loaded a new class", fooClass != null);
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        ClassNode classNode = new ClassNode("Foo", ACC_PUBLIC, ClassHelper.OBJECT_TYPE);
        classNode.addConstructor(new ConstructorNode(ACC_PUBLIC, null));

        Parameter[] parameters = {new Parameter(ClassHelper.OBJECT_TYPE.makeArray(), "coll")};

        Statement loopStatement = createPrintlnStatement(new VariableExpression("i"));

        ForStatement statement = new ForStatement(new Parameter(ClassHelper.OBJECT_TYPE, "i"), new VariableExpression("coll"), loopStatement);
        classNode.addMethod(new MethodNode("iterateDemo", ACC_PUBLIC, ClassHelper.VOID_TYPE, parameters, ClassNode.EMPTY_ARRAY, statement));

        Class fooClass = loadClass(classNode);
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    }
   
    public void addStaticInitializerStatements(List<Statement> staticStatements, boolean fieldInit) {
        MethodNode method = getOrAddStaticConstructorNode();
        BlockStatement block = null;
        Statement statement = method.getCode();
        if (statement == null) {
            block = new BlockStatement();
        }
        else if (statement instanceof BlockStatement) {
            block = (BlockStatement) statement;
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        }
    }

    public void positionStmtsAfterEnumInitStmts(List<Statement> staticFieldStatements) {
        MethodNode method = getOrAddStaticConstructorNode();
        Statement statement = method.getCode();
        if (statement instanceof BlockStatement) {
            BlockStatement block = (BlockStatement) statement;
            // add given statements for explicitly declared static fields just after enum-special fields
            // are found - the $VALUES binary expression marks the end of such fields.
            List<Statement> blockStatements = block.getStatements();
            ListIterator<Statement> litr = blockStatements.listIterator();
            while (litr.hasNext()) {
                Statement stmt = litr.next();
                if (stmt instanceof ExpressionStatement &&
                        ((ExpressionStatement) stmt).getExpression() instanceof BinaryExpression) {
                    BinaryExpression bExp = (BinaryExpression) ((ExpressionStatement) stmt).getExpression();
                    if (bExp.getLeftExpression() instanceof FieldExpression) {
                        FieldExpression fExp = (FieldExpression) bExp.getLeftExpression();
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