// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd

syntax = "proto2";

package objc.protobuf.tests.mset;

option objc_class_prefix = "MSet";

// A message with message_set_wire_format.
message Message {
  option message_set_wire_format = true;

  extensions 4 to max;
}

// A message without the message_set_wire_format option but still supports
// extensions.
message MessageEx {
  extensions 4 to max;
}

message MessageExtension1 {
  extend Message {
    optional MessageExtension1 message_set_extension = 1545008;
  }
  // Also extend a non-MessageSet with the same field number. This will allow us
  // to test parsing a normal extension into a MessageSet.
  extend MessageEx {
    optional MessageExtension1 doppelganger_message_set_extension = 1545008;
  }
  optional int32 i = 15;
  optional Message recursive = 16;
  optional string test_aliasing = 17 [ctype = STRING_PIECE];
}

message MessageExtension2 {
  extend Message {
    optional MessageExtension2 message_set_extension = 1547769;
  }
  optional string str = 25;
}

// This isn't on Message, so it will be unknown when parsing there
message MessageExtension3 {
  extend MessageEx {
    optional MessageExtension3 doppelganger_message_set_extension = 1547770;
  }
  optional int32 x = 26;
}

// MessageSet wire format is equivalent to this.
message RawMessageSet {
  repeated group Item = 1 {
    required int32 type_id = 2;
    required bytes message = 3;
  }
}

// MessageSet wire format is equivalent to this but since the fields
// are repeated they can be left off or over present to testing.
message RawBreakableMessageSet {
  repeated group Item = 1 {
    repeated int32 type_id = 2;
    repeated bytes message = 3;
  }
}