void t_swift_generator::render_const_value()

in compiler/cpp/src/thrift/generate/t_swift_generator.cc [2606:2744]

• 105 lines of code
• 30 McCabe index (conditional complexity)

void t_swift_generator::render_const_value(ostream& out,
                                           t_type* type,
                                           t_const_value* value) {
  type = get_true_type(type);

  if (type->is_base_type()) {
    t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
    switch (tbase) {
    case t_base_type::TYPE_STRING:
      out << "\"" << get_escaped_string(value) << "\"";
      break;
    case t_base_type::TYPE_BOOL:
      out << ((value->get_integer() > 0) ? "true" : "false");
      break;
    case t_base_type::TYPE_I8:
    case t_base_type::TYPE_I16:
    case t_base_type::TYPE_I32:
    case t_base_type::TYPE_I64:
      out << type_name(type) << "(" << value->get_integer() << ")";
      break;
    case t_base_type::TYPE_DOUBLE:
      out << type_name(type) << "(";
      if (value->get_type() == t_const_value::CV_INTEGER) {
        out << value->get_integer();
      } else {
        out << value->get_double();
      }
      out << ")";
      break;
    case t_base_type::TYPE_UUID:
      out << "UUID(uuidString: \"" << get_escaped_string(value) << "\")";
      break;
    default:
      throw "compiler error: no const of base type " + t_base_type::t_base_name(tbase);
    }
  } else if (type->is_enum()) {
    out << (gen_cocoa_ ? value->get_identifier() : enum_const_name(value->get_identifier())); // Swift2/Cocoa compatibility
  } else if (type->is_struct() || type->is_xception()) {

    out << type_name(type) << "(";

    const vector<t_field*>& fields = ((t_struct*)type)->get_members();
    vector<t_field*>::const_iterator f_iter;

    const map<t_const_value*, t_const_value*, t_const_value::value_compare>& val = value->get_map();
    map<t_const_value*, t_const_value*, t_const_value::value_compare>::const_iterator v_iter;

    for (f_iter = fields.begin(); f_iter != fields.end();) {
      t_field* tfield = *f_iter;
      t_const_value* value = nullptr;
      for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
        if (tfield->get_name() == v_iter->first->get_string()) {
          value = v_iter->second;
        }
      }

      if (value) {
        out << tfield->get_name() << ": ";
        render_const_value(out, tfield->get_type(), value);
      }
      else if (!field_is_optional(tfield)) {
        throw "constant error: required field " + type->get_name() + "." + tfield->get_name() + " has no value";
      }

      if (++f_iter != fields.end()) {
        out << ", ";
      }
    }

    out << ")";

  } else if (type->is_map()) {

    out << "[";

    t_type* ktype = ((t_map*)type)->get_key_type();
    t_type* vtype = ((t_map*)type)->get_val_type();

    const map<t_const_value*, t_const_value*, t_const_value::value_compare>& val = value->get_map();
    map<t_const_value*, t_const_value*, t_const_value::value_compare>::const_iterator v_iter;

    for (v_iter = val.begin(); v_iter != val.end();) {

      render_const_value(out, ktype, v_iter->first);
      out << ": ";
      render_const_value(out, vtype, v_iter->second);

      if (++v_iter != val.end()) {
        out << ", ";
      }
    }

    out << "]";

  } else if (type->is_list()) {

    out << "[";

    t_type* etype = ((t_list*)type)->get_elem_type();

    const map<t_const_value*, t_const_value*, t_const_value::value_compare>& val = value->get_map();
    map<t_const_value*, t_const_value*, t_const_value::value_compare>::const_iterator v_iter;

    for (v_iter = val.begin(); v_iter != val.end();) {

      render_const_value(out, etype, v_iter->first);

      if (++v_iter != val.end()) {
        out << ", ";
      }
    }

    out << "]";

  } else if (type->is_set()) {

    out << "[";

    t_type* etype = ((t_set*)type)->get_elem_type();

    const map<t_const_value*, t_const_value*, t_const_value::value_compare>& val = value->get_map();
    map<t_const_value*, t_const_value*, t_const_value::value_compare>::const_iterator v_iter;

    for (v_iter = val.begin(); v_iter != val.end();) {

      render_const_value(out, etype, v_iter->first);

      if (++v_iter != val.end()) {
        out << ", ";
      }
    }

    out << "]";

  } else {
    throw "compiler error: no const of type " + type->get_name();
  }

}