//              Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
//   (See accompanying file LICENSE_1_0.txt or copy at
//        https://www.boost.org/LICENSE_1_0.txt)

// SPDX-License-Identifier: BSL-1.0
#ifndef CATCH_COMMON_HPP_INCLUDED
#define CATCH_COMMON_HPP_INCLUDED

#include <catch2/internal/catch_compiler_capabilities.hpp>
#include <catch2/internal/catch_stringref.hpp>

#define INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line ) name##line
#define INTERNAL_CATCH_UNIQUE_NAME_LINE( name, line ) INTERNAL_CATCH_UNIQUE_NAME_LINE2( name, line )
#ifdef CATCH_CONFIG_COUNTER
#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __COUNTER__ )
#else
#  define INTERNAL_CATCH_UNIQUE_NAME( name ) INTERNAL_CATCH_UNIQUE_NAME_LINE( name, __LINE__ )
#endif

#include <iosfwd>

// We need a dummy global operator<< so we can bring it into Catch namespace later
struct Catch_global_namespace_dummy {};
std::ostream& operator<<(std::ostream&, Catch_global_namespace_dummy);

namespace Catch {

    struct SourceLineInfo {

        SourceLineInfo() = delete;
        constexpr SourceLineInfo( char const* _file, std::size_t _line ) noexcept:
            file( _file ),
            line( _line )
        {}

        bool operator == ( SourceLineInfo const& other ) const noexcept;
        bool operator < ( SourceLineInfo const& other ) const noexcept;

        char const* file;
        std::size_t line;

        friend std::ostream& operator << (std::ostream& os, SourceLineInfo const& info);
    };


    // Bring in operator<< from global namespace into Catch namespace
    // This is necessary because the overload of operator<< above makes
    // lookup stop at namespace Catch
    using ::operator<<;

    // Use this in variadic streaming macros to allow
    //    >> +StreamEndStop
    // as well as
    //    >> stuff +StreamEndStop
    struct StreamEndStop {
        StringRef operator+() const {
            return StringRef();
        }

        template<typename T>
        friend T const& operator + ( T const& value, StreamEndStop ) {
            return value;
        }
    };
}

#define CATCH_INTERNAL_LINEINFO \
    ::Catch::SourceLineInfo( __FILE__, static_cast<std::size_t>( __LINE__ ) )

#endif // CATCH_COMMON_HPP_INCLUDED