// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
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syntax = "proto3";

package proto3_arena_lite_unittest;

import "google/protobuf/unittest_import.proto";

option cc_enable_arenas = true;
option optimize_for = LITE_RUNTIME;

// This proto includes every type of field in both singular and repeated
// forms.
message TestAllTypes {
  message NestedMessage {
    // The field name "b" fails to compile in proto1 because it conflicts with
    // a local variable named "b" in one of the generated methods.  Doh.
    // This file needs to compile in proto1 to test backwards-compatibility.
    int32 bb = 1;
  }

  enum NestedEnum {
    ZERO = 0;
    FOO = 1;
    BAR = 2;
    BAZ = 3;
    NEG = -1;  // Intentionally negative.
  }

  // Singular
  int32 optional_int32 = 1;
  int64 optional_int64 = 2;
  uint32 optional_uint32 = 3;
  uint64 optional_uint64 = 4;
  sint32 optional_sint32 = 5;
  sint64 optional_sint64 = 6;
  fixed32 optional_fixed32 = 7;
  fixed64 optional_fixed64 = 8;
  sfixed32 optional_sfixed32 = 9;
  sfixed64 optional_sfixed64 = 10;
  float optional_float = 11;
  double optional_double = 12;
  bool optional_bool = 13;
  string optional_string = 14;
  bytes optional_bytes = 15;

  // Groups are not allowed in proto3.
  // optional group OptionalGroup = 16 {
  //   optional int32 a = 17;
  // }

  NestedMessage optional_nested_message = 18;
  ForeignMessage optional_foreign_message = 19;
  protobuf_unittest_import.ImportMessage optional_import_message = 20;

  NestedEnum optional_nested_enum = 21;
  ForeignEnum optional_foreign_enum = 22;

  // Omitted (compared to unittest.proto) because proto2 enums are not allowed
  // inside proto2 messages.
  //
  // optional protobuf_unittest_import.ImportEnum    optional_import_enum  = 23;

  string optional_string_piece = 24 [ctype = STRING_PIECE];
  string optional_cord = 25 [ctype = CORD];

  // Defined in unittest_import_public.proto
  protobuf_unittest_import.PublicImportMessage optional_public_import_message =
      26;

  NestedMessage optional_lazy_message = 27 [lazy = true];

  // Repeated
  repeated int32 repeated_int32 = 31;
  repeated int64 repeated_int64 = 32;
  repeated uint32 repeated_uint32 = 33;
  repeated uint64 repeated_uint64 = 34;
  repeated sint32 repeated_sint32 = 35;
  repeated sint64 repeated_sint64 = 36;
  repeated fixed32 repeated_fixed32 = 37;
  repeated fixed64 repeated_fixed64 = 38;
  repeated sfixed32 repeated_sfixed32 = 39;
  repeated sfixed64 repeated_sfixed64 = 40;
  repeated float repeated_float = 41;
  repeated double repeated_double = 42;
  repeated bool repeated_bool = 43;
  repeated string repeated_string = 44;
  repeated bytes repeated_bytes = 45;

  // Groups are not allowed in proto3.
  // repeated group RepeatedGroup = 46 {
  //   optional int32 a = 47;
  // }

  repeated NestedMessage repeated_nested_message = 48;
  repeated ForeignMessage repeated_foreign_message = 49;
  repeated protobuf_unittest_import.ImportMessage repeated_import_message = 50;

  repeated NestedEnum repeated_nested_enum = 51;
  repeated ForeignEnum repeated_foreign_enum = 52;

  // Omitted (compared to unittest.proto) because proto2 enums are not allowed
  // inside proto2 messages.
  //
  // repeated protobuf_unittest_import.ImportEnum    repeated_import_enum  = 53;

  repeated string repeated_string_piece = 54 [ctype = STRING_PIECE];
  repeated string repeated_cord = 55 [ctype = CORD];

  repeated NestedMessage repeated_lazy_message = 57 [lazy = true];

  oneof oneof_field {
    uint32 oneof_uint32 = 111;
    NestedMessage oneof_nested_message = 112;
    string oneof_string = 113;
    bytes oneof_bytes = 114;
  }
}

// Test messages for packed fields

message TestPackedTypes {
  repeated int32 packed_int32 = 90 [packed = true];
  repeated int64 packed_int64 = 91 [packed = true];
  repeated uint32 packed_uint32 = 92 [packed = true];
  repeated uint64 packed_uint64 = 93 [packed = true];
  repeated sint32 packed_sint32 = 94 [packed = true];
  repeated sint64 packed_sint64 = 95 [packed = true];
  repeated fixed32 packed_fixed32 = 96 [packed = true];
  repeated fixed64 packed_fixed64 = 97 [packed = true];
  repeated sfixed32 packed_sfixed32 = 98 [packed = true];
  repeated sfixed64 packed_sfixed64 = 99 [packed = true];
  repeated float packed_float = 100 [packed = true];
  repeated double packed_double = 101 [packed = true];
  repeated bool packed_bool = 102 [packed = true];
  repeated ForeignEnum packed_enum = 103 [packed = true];
}

// Explicitly set packed to false
message TestUnpackedTypes {
  repeated int32 repeated_int32 = 1 [packed = false];
  repeated int64 repeated_int64 = 2 [packed = false];
  repeated uint32 repeated_uint32 = 3 [packed = false];
  repeated uint64 repeated_uint64 = 4 [packed = false];
  repeated sint32 repeated_sint32 = 5 [packed = false];
  repeated sint64 repeated_sint64 = 6 [packed = false];
  repeated fixed32 repeated_fixed32 = 7 [packed = false];
  repeated fixed64 repeated_fixed64 = 8 [packed = false];
  repeated sfixed32 repeated_sfixed32 = 9 [packed = false];
  repeated sfixed64 repeated_sfixed64 = 10 [packed = false];
  repeated float repeated_float = 11 [packed = false];
  repeated double repeated_double = 12 [packed = false];
  repeated bool repeated_bool = 13 [packed = false];
  repeated TestAllTypes.NestedEnum repeated_nested_enum = 14 [packed = false];
}

// This proto includes a recursively nested message.
message NestedTestAllTypes {
  NestedTestAllTypes child = 1;
  TestAllTypes payload = 2;
}

// Define these after TestAllTypes to make sure the compiler can handle
// that.
message ForeignMessage {
  int32 c = 1;
}

enum ForeignEnum {
  FOREIGN_ZERO = 0;
  FOREIGN_FOO = 4;
  FOREIGN_BAR = 5;
  FOREIGN_BAZ = 6;
}

// TestEmptyMessage is used to test behavior of unknown fields.
message TestEmptyMessage {}