Function cppArgToRArg

src/attributes.cpp:2736–2770

convert a C++ argument value to an R argument value (returns empty string if no conversion is possible)

        // convert a C++ argument value to an R argument value (returns empty
        // string if no conversion is possible)
        std::string cppArgToRArg(const std::string& type,
                                 const std::string& cppArg) {

            // try for quoted string
            if (isQuoted(cppArg))
                return cppArg;

            // try for literal
            std::string rArg = cppLiteralArgToRArg(cppArg);
            if (!rArg.empty())
                return rArg;

            // try for a create arg
            rArg = cppCreateArgToRArg(cppArg);	    		// #nocov start
            if (!rArg.empty())
                return rArg;

            // try for a matrix arg
            rArg = cppMatrixArgToRArg(cppArg);
            if (!rArg.empty())
                return rArg;

            // try for a numeric arg
            rArg = cppNumericArgToRArg(type, cppArg);
            if (!rArg.empty())
                return rArg;

            // try for a constructor arg
            rArg = cppConstructorArgToRArg(cppArg);
            if (!rArg.empty())
                return rArg;

            // couldn't parse the arg
            return std::string();				// #nocov end
        }

    } // anonymous namespace