1syntax = "proto3"; 2 3package protobuf_unittest; 4 5import "google/protobuf/descriptor.proto"; 6 7option java_outer_classname = "UnittestProto3Extensions"; 8 9// For testing proto3 extension behaviors. 10message Proto3FileExtensions { 11 extend google.protobuf.FileOptions { 12 int32 singular_int = 1001; 13 repeated int32 repeated_int = 1002; 14 } 15} 16