syntax = "proto2";

option java_multiple_files = true;
option java_package = "com.google.protobuf.nano";

import "google/protobuf/unittest_extension_nano.proto";

// Must be compiled separately due to extension number reuse.
// The reuse is deliberate, for testing wire compatibility.

message SingularExtensions {
  extend ExtendableMessage {
    optional int32          some_int32    = 10;
    optional uint32         some_uint32   = 11;
    optional sint32         some_sint32   = 12;
    optional int64          some_int64    = 13;
    optional uint64         some_uint64   = 14;
    optional sint64         some_sint64   = 15;
    optional fixed32        some_fixed32  = 16;
    optional sfixed32       some_sfixed32 = 17;
    optional fixed64        some_fixed64  = 18;
    optional sfixed64       some_sfixed64 = 19;
    optional bool           some_bool     = 20;
    optional float          some_float    = 21;
    optional double         some_double   = 22;
    optional AnEnum         some_enum     = 23;
    optional string         some_string   = 24;
    optional bytes          some_bytes    = 25;
    optional AnotherMessage some_message  = 26;
    optional group          SomeGroup     = 27 {
      optional int32 a = 1;
    }
  }
}