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/* vim: set sw=4 sts=4 et foldmethod=syntax : */

/*
 * Copyright (c) 2011 Ciaran McCreesh
 *
 * This file is part of the Paludis package manager. Paludis is free software;
 * you can redistribute it and/or modify it under the terms of the GNU General
 * Public License version 2, as published by the Free Software Foundation.
 *
 * Paludis is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef PALUDIS_GUARD_PALUDIS_PACKAGE_DEP_SPEC_CONSTRAINT_HH
#define PALUDIS_GUARD_PALUDIS_PACKAGE_DEP_SPEC_CONSTRAINT_HH 1

#include <paludis/package_dep_spec_constraint-fwd.hh>
#include <paludis/name.hh>

#include <paludis/util/attributes.hh>
#include <paludis/util/pool.hh>
#include <paludis/util/visitor.hh>
#include <paludis/util/type_list.hh>
#include <paludis/util/fs_path.hh>

namespace paludis
{
    class PALUDIS_VISIBLE PackageDepSpecConstraint :
        public virtual DeclareAbstractAcceptMethods<PackageDepSpecConstraint, MakeTypeList<
            NameConstraint,
            PackageNamePartConstraint,
            CategoryNamePartConstraint,
            InRepositoryConstraint,
            FromRepositoryConstraint,
            InstalledAtPathConstraint
        >::Type>
    {
        public:
            virtual ~PackageDepSpecConstraint() = 0;
    };

    class PALUDIS_VISIBLE NameConstraint :
        public PackageDepSpecConstraint,
        public ImplementAcceptMethods<PackageDepSpecConstraint, NameConstraint>
    {
        friend class Pool<NameConstraint>;

        private:
            QualifiedPackageName _name;

            NameConstraint(const QualifiedPackageName &);

            NameConstraint(const NameConstraint &) = delete;

        public:
            ~NameConstraint();

            const QualifiedPackageName name() const PALUDIS_ATTRIBUTE((warn_unused_result));
    };

    class PALUDIS_VISIBLE CategoryNamePartConstraint :
        public PackageDepSpecConstraint,
        public ImplementAcceptMethods<PackageDepSpecConstraint, CategoryNamePartConstraint>
    {
        friend class Pool<CategoryNamePartConstraint>;

        private:
            CategoryNamePart _name_part;

            CategoryNamePartConstraint(const CategoryNamePart &);

            CategoryNamePartConstraint(const CategoryNamePartConstraint &) = delete;

        public:
            ~CategoryNamePartConstraint();

            const CategoryNamePart name_part() const PALUDIS_ATTRIBUTE((warn_unused_result));
    };

    class PALUDIS_VISIBLE PackageNamePartConstraint :
        public PackageDepSpecConstraint,
        public ImplementAcceptMethods<PackageDepSpecConstraint, PackageNamePartConstraint>
    {
        friend class Pool<PackageNamePartConstraint>;

        private:
            PackageNamePart _name_part;

            PackageNamePartConstraint(const PackageNamePart &);

            PackageNamePartConstraint(const PackageNamePartConstraint &) = delete;

        public:
            ~PackageNamePartConstraint();

            const PackageNamePart name_part() const PALUDIS_ATTRIBUTE((warn_unused_result));
    };

    class PALUDIS_VISIBLE InRepositoryConstraint :
        public PackageDepSpecConstraint,
        public ImplementAcceptMethods<PackageDepSpecConstraint, InRepositoryConstraint>
    {
        friend class Pool<InRepositoryConstraint>;

        private:
            RepositoryName _name;

            InRepositoryConstraint(const RepositoryName &);

            InRepositoryConstraint(const InRepositoryConstraint &) = delete;

        public:
            ~InRepositoryConstraint();

            const RepositoryName name() const PALUDIS_ATTRIBUTE((warn_unused_result));
    };

    class PALUDIS_VISIBLE FromRepositoryConstraint :
        public PackageDepSpecConstraint,
        public ImplementAcceptMethods<PackageDepSpecConstraint, FromRepositoryConstraint>
    {
        friend class Pool<FromRepositoryConstraint>;

        private:
            RepositoryName _name;

            FromRepositoryConstraint(const RepositoryName &);

            FromRepositoryConstraint(const FromRepositoryConstraint &) = delete;

        public:
            ~FromRepositoryConstraint();

            const RepositoryName name() const PALUDIS_ATTRIBUTE((warn_unused_result));
    };

    class PALUDIS_VISIBLE InstalledAtPathConstraint :
        public PackageDepSpecConstraint,
        public ImplementAcceptMethods<PackageDepSpecConstraint, InstalledAtPathConstraint>
    {
        friend class Pool<InstalledAtPathConstraint>;

        private:
            FSPath _path;

            InstalledAtPathConstraint(const FSPath &);

            InstalledAtPathConstraint(const InstalledAtPathConstraint &) = delete;

        public:
            ~InstalledAtPathConstraint();

            const FSPath path() const PALUDIS_ATTRIBUTE((warn_unused_result));
    };

    extern template class Pool<NameConstraint>;
    extern template class Pool<PackageNamePartConstraint>;
    extern template class Pool<CategoryNamePartConstraint>;
    extern template class Pool<InRepositoryConstraint>;
    extern template class Pool<FromRepositoryConstraint>;
    extern template class Pool<InstalledAtPathConstraint>;
}

#endif