Method streamReconstructedExpression

tutorials/external/catch.hpp:3380–3387

        {}

        void streamReconstructedExpression( std::ostream &os ) const override {
            auto matcherAsString = m_matcher.toString();
            os << Catch::Detail::stringify( m_arg ) << ' ';
            if( matcherAsString == Detail::unprintableString )
                os << m_matcherString;
            else
                os << matcherAsString;
        }
    };

    using StringMatcher = Matchers::Impl::MatcherBase<std::string>;