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

/*
 * Copyright (c) 2007 Tiziano Müller
 * Copyright (c) 2007 David Leverton
 *
 * 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 ELFSYMBOLSECTION_HH_
#define ELFSYMBOLSECTION_HH_

#include "elf_sections.hh"

#include <paludis/util/private_implementation_pattern.hh>
#include <paludis/util/wrapped_forward_iterator-fwd.hh>

#include <iosfwd>

namespace littlelf_internals
{
    template <typename ElfType_> class SymbolStringResolvingVisitor;
}

template <typename ElfType_>
class Symbol
{
    friend class littlelf_internals::SymbolStringResolvingVisitor<ElfType_>;

    private:
        typename ElfType_::Symbol _my_symbol;
        std::string _symbol_name;
        std::string _binding, _visibility;

    protected:
        void resolve_symbol(std::string symbol_name)
        {
            _symbol_name = symbol_name;
        }

        typename ElfType_::Word get_symbol_index() const
        {
            return _my_symbol.st_name;
        }

    public:
        Symbol(const typename ElfType_::Symbol &);
        ~Symbol();

        std::string name() const
        {
            return _symbol_name;
        }

        std::string binding() const
        {
            return _binding;
        }

        std::string visibility() const
        {
            return _visibility;
        }
};

template <typename ElfType_>
class SymbolSection :
    public Section<ElfType_>,
    public paludis::AcceptInterfaceVisitsThis<SectionVisitorTypes<ElfType_> , SymbolSection<ElfType_> >,
    private paludis::PrivateImplementationPattern<SymbolSection<ElfType_> >
{
    using paludis::PrivateImplementationPattern<SymbolSection>::_imp;

    private:
        std::string _type;

    public:
        SymbolSection(typename ElfType_::Word, const typename ElfType_::SectionHeader &, std::istream &, bool);
        virtual ~SymbolSection();

        virtual std::string get_type() const
        {
            return _type;
        }

        void resolve_symbols(Section<ElfType_> &);

        struct SymbolIteratorTag;
        typedef paludis::WrappedForwardIterator<SymbolIteratorTag, const Symbol<ElfType_ > > SymbolIterator;
        SymbolIterator symbol_begin() const;
        SymbolIterator symbol_end() const;
};

#endif /*ELFSYMBOLSECTION_HH_*/