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#pragma once 
 
#include <util/generic/string.h>
#include <util/string/builder.h> 
#include <util/system/src_location.h> 
 
#define LWTRACE_DEFINE_SYMBOL(variable, text)         \ 
    static TString variable##_holder(text);           \ 
    ::NLWTrace::TSymbol variable(&variable##_holder); \ 
    /**/ 
 
#define LWTRACE_INLINE_SYMBOL(text)           \ 
    [&] {                                     \ 
        static TString _holder(text);         \ 
        return ::NLWTrace::TSymbol(&_holder); \ 
    }() /**/ 
 
#define LWTRACE_LOCATION_SYMBOL                                                          \ 
    [](const char* func) {                                                               \ 
        static TString _holder(TStringBuilder() << func << " (" << __LOCATION__ << ")"); \
        return ::NLWTrace::TSymbol(&_holder);                                            \ 
    }(Y_FUNC_SIGNATURE) /**/ 
 
namespace NLWTrace { 
    struct TSymbol { 
        TString* Str; 
 
        TSymbol() 
            : Str(nullptr) 
        { 
        } 
 
        explicit TSymbol(TString* str) 
            : Str(str) 
        { 
        } 
 
        TSymbol& operator=(const TSymbol& o) { 
            Str = o.Str; 
            return *this; 
        } 
 
        TSymbol(const TSymbol& o) 
            : Str(o.Str) 
        { 
        } 
 
        bool operator<(const TSymbol& rhs) const { 
            return Str < rhs.Str; 
        } 
        bool operator>(const TSymbol& rhs) const { 
            return Str > rhs.Str; 
        } 
        bool operator<=(const TSymbol& rhs) const { 
            return Str <= rhs.Str; 
        } 
        bool operator>=(const TSymbol& rhs) const { 
            return Str >= rhs.Str; 
        } 
        bool operator==(const TSymbol& rhs) const { 
            return Str == rhs.Str; 
        } 
        bool operator!=(const TSymbol& rhs) const { 
            return Str != rhs.Str; 
        } 
    }; 
 
}