xref: /aoo4110/main/ridljar/com/sun/star/lib/uno/typedesc/MemberDescriptionHelper.java (revision b1cdbd2c)

/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/



package com.sun.star.lib.uno.typedesc;

import com.sun.star.uno.ITypeDescription;
import com.sun.star.uno.TypeClass;

final class MemberDescriptionHelper {
    public static boolean isUnsigned(ITypeDescription desc) {
        switch (getElementTypeClass(desc).getValue()) {
        case TypeClass.UNSIGNED_SHORT_value:
        case TypeClass.UNSIGNED_LONG_value:
        case TypeClass.UNSIGNED_HYPER_value:
            return true;

        default:
            return false;
        }
    }

    public static boolean isAny(ITypeDescription desc) {
        return getElementTypeClass(desc) == TypeClass.ANY;
    }

    public static boolean isInterface(ITypeDescription desc) {
        return getElementTypeClass(desc) == TypeClass.INTERFACE;
    }

    private static TypeClass getElementTypeClass(ITypeDescription desc) {
        for (;; desc = desc.getComponentType()) {
            TypeClass tc = desc.getTypeClass();
            if (tc != TypeClass.SEQUENCE) {
                return tc;
            }
        }
    }

    private MemberDescriptionHelper() {} // do not instantiate
}