env/protobuf-3.17.0/js/test8.proto

// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
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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.
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// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
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syntax = "proto2";

package jspb.exttest.nested;

option java_package = "com.google.apps.jspb.proto";
option java_multiple_files = true;

message TestNestedExtensionsMessage {
  optional int32 intfield = 1;
  extensions 100 to max;
}

message TestOuterMessage {
  message NestedExtensionMessage {
    optional string ext1 = 1;
  }
  extend TestNestedExtensionsMessage {
    optional NestedExtensionMessage inner_extension = 100;
  }
}