Package org.codehaus.groovy.ast.expr

Examples of org.codehaus.groovy.ast.expr.ConstantExpression

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    public static BooleanExpression isTrueExpr(Expression argExpr) {
        return new BooleanExpression(new BinaryExpression(argExpr, COMPARE_EQUAL, ConstantExpression.TRUE));
    }

    public static BooleanExpression isOneExpr(Expression expr) {
        return new BooleanExpression(new BinaryExpression(expr, COMPARE_EQUAL, new ConstantExpression(1)));
    }
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            if (de.getLeftExpression() == candidate.getLeftExpression()) {
                if (insideScriptBody) {
                    // TODO make EmptyExpression work
                    // partially works but not if only thing in script
                    // return EmptyExpression.INSTANCE;
                    return new ConstantExpression(null);
                }
                addError("Error: annotation " + MY_TYPE_NAME + " can only be used within a Script body.", expr);
                return expr;
            }
        } else if (insideScriptBody && expr instanceof VariableExpression && currentClosure != null) {
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        mv.visitLabel(continueLabel);
        Expression bool = loop.getBooleanExpression();
        boolean boolHandled = false;
        if (bool instanceof ConstantExpression) {
            ConstantExpression constant = (ConstantExpression) bool;
            if (constant.getValue()==Boolean.TRUE) {
                boolHandled = true;
                // do nothing
            } else if (constant.getValue()==Boolean.FALSE) {
                boolHandled = true;
                mv.visitJumpInsn(GOTO, breakLabel);
            }
        }
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    @Test
    public void testVisit_Contract() {
        try {
            ASTNode[] badInput = new ASTNode[]{
                new ConstantExpression("sample"),
                new EmptyExpression()
            };
            new SingletonASTTransformation().visit(badInput, null);
            Assert.fail("Contract Failure");
        } catch (RuntimeException ex) {
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            ArgumentListExpression argumentListExpression = (ArgumentListExpression) arguments;
            List<Expression> args = argumentListExpression.getExpressions();

            for (Expression arg : args) {
                if (arg instanceof ConstantExpression) {
                    ConstantExpression expression = (ConstantExpression) arg;
                    Object o = expression.getValue();

                    if (o instanceof String) {
                        out.print("(String)null");
                    } else {
                        out.print(expression.getText());
                    }
                } else {
                    ClassNode type = getConstructorArgumentType(arg, node);
                    printDefaultValue(out, type);
                }
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                sb.append(getAnnotationValue(e));
            }
            sb.append("}");
            val = sb.toString();
        } else if (memberValue instanceof ConstantExpression) {
            ConstantExpression ce = (ConstantExpression) memberValue;
            Object constValue = ce.getValue();
            if (constValue instanceof Number || constValue instanceof Boolean)
                val = constValue.toString();
            else
        val = "\"" + escapeStringAnnotationValue(constValue.toString()) + "\"";
        } else if (memberValue instanceof PropertyExpression || memberValue instanceof VariableExpression) {
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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));
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                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);
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        AnnotationNode node = (AnnotationNode) nodes[0];
        if (!MY_TYPE.equals(node.getClassNode())) return;
        Expression valueExpr = node.getMember("value");
        String value = null;
        if (valueExpr instanceof ConstantExpression) {
            ConstantExpression ce = (ConstantExpression) valueExpr;
            Object valueObject = ce.getValue();
            if (valueObject != null) value = valueObject.toString();
        }

        if (parent instanceof MethodNode) {
            MethodNode mNode = (MethodNode) parent;
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        }
        return "$lock";
    }

    private Expression zeroLengthObjectArray() {
        return new ArrayExpression(OBJECT_TYPE, null, Arrays.asList((Expression)new ConstantExpression(0)));
    }
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