57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
/* vim: set sw=4 sts=4 et foldmethod=syntax : */
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/*
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* Copyright (c) 2008, 2010 Ciaran McCreesh
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* Copyright (c) 2008 David Leverton
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*
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* This file is part of the Paludis package manager. Paludis is free software;
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* you can redistribute it and/or modify it under the terms of the GNU General
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* Public License version 2, as published by the Free Software Foundation.
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*
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* Paludis is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef PALUDIS_GUARD_PALUDIS_FILTER_HANDLER_HH
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#define PALUDIS_GUARD_PALUDIS_FILTER_HANDLER_HH 1
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#include <paludis/selection_handler-fwd.hh>
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#include <paludis/filtered_generator.hh>
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#include <paludis/environment-fwd.hh>
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#include <paludis/package_id-fwd.hh>
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#include <paludis/util/attributes.hh>
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#include <memory>
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namespace paludis
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{
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class PALUDIS_VISIBLE SelectionHandler
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{
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protected:
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const FilteredGenerator _fg;
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SelectionHandler(const FilteredGenerator & g) :
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_fg(g)
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{
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}
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public:
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virtual ~SelectionHandler() = 0;
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SelectionHandler(const SelectionHandler &) = delete;
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SelectionHandler & operator= (const SelectionHandler &) = delete;
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virtual std::string as_string() const = 0;
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virtual std::shared_ptr<PackageIDSequence> perform_select(const Environment * const) const
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PALUDIS_ATTRIBUTE((warn_unused_result)) = 0;
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};
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}
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#endif
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