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

org.codehaus.groovy.ast.stmt.EmptyStatement
Represents an empty statement @author James Strachan @version $Revision: 6778 $

            final FieldNode hashField = cNode.addField("$hash$code", ACC_PRIVATE | ACC_SYNTHETIC, ClassHelper.int_TYPE, null);
            final Expression hash = new VariableExpression(hashField);
            body.addStatement(new IfStatement(
                    isZeroExpr(hash),
                    calculateHashStatements(cNode, hash, includeFields, callSuper, excludes, includes),
                    new EmptyStatement()
            ));
            body.addStatement(new ReturnStatement(hash));
        } else {
            body.addStatement(calculateHashStatements(cNode, null, includeFields, callSuper, excludes, includes));
        }

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        if (useCanEqual) {
            body.addStatement(returnFalseIfNotInstanceof(cNode, other));
            body.addStatement(new IfStatement(
                    new BooleanExpression(new MethodCallExpression(other, "canEqual", VariableExpression.THIS_EXPRESSION)),
                    new EmptyStatement(),
                    new ReturnStatement(ConstantExpression.FALSE)
            ));
        } else {
            body.addStatement(returnFalseIfWrongType(cNode, other));
        }
//        body.addStatement(new ExpressionStatement(new BinaryExpression(other, ASSIGN, new CastExpression(cNode, other))));


        List<PropertyNode> pList = getInstanceProperties(cNode);
        for (PropertyNode pNode : pList) {
            if (shouldSkip(pNode.getName(), excludes, includes)) continue;
            body.addStatement(returnFalseIfPropertyNotEqual(pNode, other));
        }
        List<FieldNode> fList = new ArrayList<FieldNode>();
        if (includeFields) {
            fList.addAll(getInstanceNonPropertyFields(cNode));
        }
        for (FieldNode fNode : fList) {
            if (shouldSkip(fNode.getName(), excludes, includes)) continue;
            body.addStatement(returnFalseIfFieldNotEqual(fNode, other));
        }
        if (callSuper) {
            body.addStatement(new IfStatement(
                    isTrueExpr(new MethodCallExpression(VariableExpression.SUPER_EXPRESSION, "equals", other)),
                    new EmptyStatement(),
                    new ReturnStatement(ConstantExpression.FALSE)
            ));
        }


        // default

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    public static IfStatement returnTrueIfIdentical(Expression self, Expression other) {
        return new IfStatement(
                identicalExpr(self, other),
                new ReturnStatement(ConstantExpression.TRUE),
                new EmptyStatement()
        );
    }

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    public static Statement returnFalseIfPropertyNotEqual(PropertyNode pNode, Expression other) {
        return new IfStatement(
                notEqualsPropertyExpr(pNode, other),
                new ReturnStatement(ConstantExpression.FALSE),
                new EmptyStatement()
        );
    }

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    public static Statement returnFalseIfFieldNotEqual(FieldNode fNode, Expression other) {
        return new IfStatement(
                notEqualsFieldExpr(fNode, other),
                new ReturnStatement(ConstantExpression.FALSE),
                new EmptyStatement()
        );
    }

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        Expression value = findArg(name);
        return new IfStatement(
                equalsNullExpr(value),
                new IfStatement(
                        equalsNullExpr(initExpr),
                        new EmptyStatement(),
                        assignStatement(fieldExpr, initExpr)),
                assignStatement(fieldExpr, value));
    }

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            body.addStatement(append(result, new ConstantExpression(", ")));
        }
        body.addStatement(new IfStatement(
                new BooleanExpression(new VariableExpression(cNode.getField("$print$names"))),
                toStringPropertyName(result, name),
                new EmptyStatement()
        ));
        return first;
    }

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    private void createCloneCopyConstructor(ClassNode cNode, List<FieldNode> list, List<String> excludes) {
        BlockStatement initBody = new BlockStatement();
        if (cNode.getDeclaredConstructors().size() == 0) {
            // add no-arg constructor
            initBody.addStatement(new EmptyStatement());
            cNode.addConstructor(ACC_PUBLIC, new Parameter[0], ClassNode.EMPTY_ARRAY, initBody);
            initBody = new BlockStatement();
        }
        Parameter initParam = new Parameter(cNode, "other");
        final Expression other = new VariableExpression(initParam);

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            if (excludes.contains(fieldNode.getName())) continue;
            Expression fieldExpr = new VariableExpression(fieldNode);
            Expression from = new MethodCallExpression(fieldExpr, "clone", MethodCallExpression.NO_ARGUMENTS);
            Expression to = new PropertyExpression(result, fieldNode.getName());
            Statement doClone = assignStatement(to, from);
            Statement doNothing = new EmptyStatement();
            body.addStatement(new IfStatement(isInstanceOf(fieldExpr, CLONEABLE_TYPE), doClone, doNothing));
        }
        body.addStatement(new ReturnStatement(result));
        ClassNode[] exceptions = {ClassHelper.make(CloneNotSupportedException.class)};
        cNode.addMethod("clone", ACC_PUBLIC, ClassHelper.OBJECT_TYPE, new Parameter[0], exceptions, body);

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    public static Statement returnFalseIfWrongType(ClassNode cNode, Expression other) {
        return new IfStatement(
                notEqualClasses(cNode, other),
                new ReturnStatement(ConstantExpression.FALSE),
                new EmptyStatement()
        );
    }

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