1// Protocol Buffers - Google's data interchange format
2// Copyright 2008 Google Inc.  All rights reserved.
3// https://developers.google.com/protocol-buffers/
4//
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30
31// Author: robinson@google.com (Will Robinson)
32
33
34package google.protobuf.internal;
35
36
37message TopLevelMessage {
38  optional ExtendedMessage submessage = 1;
39}
40
41
42message ExtendedMessage {
43  extensions 1 to max;
44}
45
46
47message ForeignMessage {
48  optional int32 foreign_message_int = 1;
49}
50
51
52extend ExtendedMessage {
53  optional int32 optional_int_extension = 1;
54  optional ForeignMessage optional_message_extension = 2;
55
56  repeated int32 repeated_int_extension = 3;
57  repeated ForeignMessage repeated_message_extension = 4;
58}
59