rust/test/extensions.proto

// Protocol Buffers - Google's data interchange format
// Copyright 2026 Google LLC.  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

edition = "2024";

package third_party_protobuf_rust_test;

message TestExtensions {
  extensions 1 to max;

  extend TestExtensions {
    int32 nested_extension = 500;
  }
}

message SimpleSubmessage {
  int32 i32_field = 1 [default = 123];
}

extend TestExtensions {
  int32 i32_extension = 1;
  string str_extension = 2;

  SimpleSubmessage submessage_extension = 20;

  int32 i32_extension_with_default = 100 [default = 100];

  repeated int32 repeated_i32_extension = 801;
  repeated string repeated_str_extension = 802;
  repeated SimpleSubmessage repeated_submessage_extension = 803;

  int64 i64_extension = 11;
  uint32 u32_extension = 12;
  uint64 u64_extension = 13;
  float f32_extension = 14;
  double f64_extension = 15;
  bool bool_extension = 16;

  repeated int64 repeated_i64_extension = 811;
  repeated uint32 repeated_u32_extension = 812;
  repeated uint64 repeated_u64_extension = 813;
  repeated float repeated_f32_extension = 814;
  repeated double repeated_f64_extension = 815;
  repeated bool repeated_bool_extension = 816;

  TestEnum enum_extension = 30;
  repeated TestEnum repeated_enum_extension = 830;
}

enum TestEnum {
  FOO = 0;
  BAR = 1;
}

enum ClosedEnum {
  option features.enum_type = CLOSED;

  CLOSED_ZERO = 0;
  CLOSED_ONE = 1;
}

extend TestExtensions {
  ClosedEnum closed_enum_extension = 31;
}