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      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 //
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      7 // modification, are permitted provided that the following conditions are
      8 // met:
      9 //
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     11 // notice, this list of conditions and the following disclaimer.
     12 //     * Redistributions in binary form must reproduce the above
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     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
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     31 
     32 syntax = "proto2";
     33 
     34 import "extension_base/extension_base.proto";
     35 import "extension_extra/extension_extra.proto";
     36 
     37 package extension_user;
     38 
     39 option go_package = "github.com/golang/protobuf/protoc-gen-go/testdata/extension_user";
     40 
     41 message UserMessage {
     42   optional string name = 1;
     43   optional string rank = 2;
     44 }
     45 
     46 // Extend with a message
     47 extend extension_base.BaseMessage {
     48   optional UserMessage user_message = 5;
     49 }
     50 
     51 // Extend with a foreign message
     52 extend extension_base.BaseMessage {
     53   optional extension_extra.ExtraMessage extra_message = 9;
     54 }
     55 
     56 // Extend with some primitive types
     57 extend extension_base.BaseMessage {
     58   optional int32 width = 6;
     59   optional int64 area = 7;
     60 }
     61 
     62 // Extend inside the scope of another type
     63 message 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.
     71 message LoginMessage {
     72   extend extension_base.BaseMessage {
     73     optional UserMessage user_message = 16;
     74   }
     75 }
     76 
     77 // Extend with a repeated field
     78 extend extension_base.BaseMessage {
     79   repeated Detail detail = 17;
     80 }
     81 
     82 message Detail {
     83   optional string color = 1;
     84 }
     85 
     86 // An extension of an extension
     87 message 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.
     95 message 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