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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
}
