Support for the Ruby 2.4 series has ended. See here for reference.
Converts this object to a string (calling to_s), converts it to a JSON
string, and returns the result. This is a fallback, if no special method to_json
was defined for some object.
static VALUE mObject_to_json(int argc, VALUE *argv, VALUE self) { VALUE state; VALUE string = rb_funcall(self, i_to_s, 0); rb_scan_args(argc, argv, "01", &state); Check_Type(string, T_STRING); state = cState_from_state_s(cState, state); return cState_partial_generate(state, string); }