1// Go support for Protocol Buffers - Google's data interchange format
2//
3// Copyright 2010 The Go Authors.  All rights reserved.
4// https://github.com/golang/protobuf
5//
6// Redistribution and use in source and binary forms, with or without
7// modification, are permitted provided that the following conditions are
8// met:
9//
10//     * Redistributions of source code must retain the above copyright
11// notice, this list of conditions and the following disclaimer.
12//     * Redistributions in binary form must reproduce the above
13// copyright notice, this list of conditions and the following disclaimer
14// in the documentation and/or other materials provided with the
15// distribution.
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17// contributors may be used to endorse or promote products derived from
18// this software without specific prior written permission.
19//
20// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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24// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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30// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31
32syntax = "proto2";
33
34import "extension_base/extension_base.proto";
35import "extension_extra/extension_extra.proto";
36
37package extension_user;
38
39option go_package = "github.com/golang/protobuf/protoc-gen-go/testdata/extension_user";
40
41message UserMessage {
42  optional string name = 1;
43  optional string rank = 2;
44}
45
46// Extend with a message
47extend extension_base.BaseMessage {
48  optional UserMessage user_message = 5;
49}
50
51// Extend with a foreign message
52extend extension_base.BaseMessage {
53  optional extension_extra.ExtraMessage extra_message = 9;
54}
55
56// Extend with some primitive types
57extend extension_base.BaseMessage {
58  optional int32 width = 6;
59  optional int64 area = 7;
60}
61
62// Extend inside the scope of another type
63message LoudMessage {
64  extend extension_base.BaseMessage {
65    optional uint32 volume = 8;
66  }
67  extensions 100 to max;
68}
69
70// Extend inside the scope of another type, using a message.
71message LoginMessage {
72  extend extension_base.BaseMessage {
73    optional UserMessage user_message = 16;
74  }
75}
76
77// Extend with a repeated field
78extend extension_base.BaseMessage {
79  repeated Detail detail = 17;
80}
81
82message Detail {
83  optional string color = 1;
84}
85
86// An extension of an extension
87message Announcement {
88  optional string words = 1;
89  extend LoudMessage {
90    optional Announcement loud_ext = 100;
91  }
92}
93
94// Something that can be put in a message set.
95message OldStyleParcel {
96  extend extension_base.OldStyleMessage {
97    optional OldStyleParcel message_set_extension = 2001;
98  }
99
100  required string name = 1;
101  optional int32 height = 2;
102}
103