concept.hpp

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// -----------------------------------------------------------------------------------------------------
// Copyright (c) 2006-2021, Knut Reinert & Freie Universität Berlin
// Copyright (c) 2016-2021, Knut Reinert & MPI für molekulare Genetik
// This file may be used, modified and/or redistributed under the terms of the 3-clause BSD-License
// shipped with this file and also available at: https://github.com/seqan/seqan3/blob/master/LICENSE.md
// -----------------------------------------------------------------------------------------------------
 
#pragma once
 
#include <seqan3/std/concepts>
#include <type_traits>
 
#include <sdsl/suffix_arrays.hpp>
 
#include <seqan3/core/platform.hpp>
 
namespace seqan3::detail
{
 
// ============================================================================
//  sdsl_index
// ============================================================================
 
template <typename t>
SEQAN3_CONCEPT sdsl_index = requires (t sdsl_index)
{
    typename t::size_type;
 
    SEQAN3_RETURN_TYPE_CONSTRAINT(sdsl_index.size(), std::same_as, typename t::size_type);
    { sdsl_index[0] }; // suffix array access
    SEQAN3_RETURN_TYPE_CONSTRAINT(sdsl_index.comp2char[0], std::same_as, uint8_t);
    SEQAN3_RETURN_TYPE_CONSTRAINT(sdsl_index.char2comp[0], std::same_as, uint8_t);
    { sdsl_index.sigma };
    { sdsl_index.C[0] };
 
    requires requires (t sdsl_index, typename t::char_type const c, typename t::size_type const lb,
                                     typename t::size_type const rb, sdsl::int_vector<8> const text)
    {
        { sdsl_index.bwt.rank(lb, c) };
        { sdsl_index.wavelet_tree.lex_count(lb, rb, c) };
        { sdsl::construct_im(sdsl_index, text, 0) };
    };
};
 
} // namespace seqan3::detail
 
namespace seqan3
{
enum text_layout : bool
{
    single,
    collection
};
 
} // namespace seqan3