src/google/protobuf/unittest_proto3_arena.proto

// Protocol Buffers - Google's data interchange format
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// https://developers.google.com/protocol-buffers/
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syntax = "proto3";

option cc_enable_arenas = true;

import "google/protobuf/unittest_import.proto";

package proto3_arena_unittest;

// 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 recusively 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 {
}