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 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Google LLC nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

syntax = "proto2";

import "src/google/protobuf/test_messages_proto3.proto";

package upb_test;

message TestExtensions {
  extensions 1000 to max;
  extend TestExtensions {
    optional int32 optional_int32_ext = 1000;
  }
  message Nested {
    extend TestExtensions {
      repeated int32 repeated_int32_ext = 1001;
    }
  }
}

extend TestExtensions {
  optional protobuf_test_messages.proto3.TestAllTypesProto3 optional_msg_ext = 1002;
}

message TestMessageSet {
  extensions 4 to max;
  option message_set_wire_format = true;
}

message MessageSetMember {
  optional int32 optional_int32 = 1;
  extend TestMessageSet {
    optional MessageSetMember message_set_extension = 4;
  }
}

message Proto2EnumMessage {
  enum Proto2TestEnum {
    ZERO = 0;
    NEGATIVE = -1;
    SMALL = 15;
    LARGE = 12345;
  }

  optional Proto2TestEnum optional_enum = 1;
  repeated Proto2TestEnum repeated_enum = 2;
  repeated Proto2TestEnum packed_enum = 3 [packed = true];
}

// The same fields as Proto2EnumMessage, but with int32 fields so we can fake
// wire format.
message Proto2FakeEnumMessage {
  optional int32 optional_enum = 1;
  repeated int32 repeated_enum = 2;
  repeated int32 packed_enum = 3 [packed = true];
}

message EmptyMessage {}

message TestRequiredFields {
  required int32 required_int32 = 1;
  optional int32 optional_int32 = 2;
  required int64 required_int64 = 3;
  optional TestRequiredFields optional_message = 4;
  required EmptyMessage required_message = 5;
}

message SubMessageHasRequired {
  optional TestRequiredFields optional_message = 1;
}