syntax = "proto2"; import "nanopb.proto"; message SubMessage { optional string dynamic_str = 1 [(nanopb).type = FT_POINTER]; repeated string dynamic_str_arr = 2 [(nanopb).type = FT_POINTER]; repeated SubMessage dynamic_submsg = 3 [(nanopb).type = FT_POINTER]; } message TestMessage { required SubMessage static_req_submsg = 1 [(nanopb).type = FT_STATIC]; optional SubMessage dynamic_submsg = 2 [(nanopb).type = FT_POINTER]; optional SubMessage static_opt_submsg = 3 [(nanopb).type = FT_STATIC]; repeated SubMessage static_rep_submsg = 4 [(nanopb).type = FT_STATIC, (nanopb).max_count=2]; extensions 100 to 200; } extend TestMessage { optional SubMessage dynamic_ext = 100 [(nanopb).type = FT_POINTER]; optional SubMessage static_ext = 101 [(nanopb).type = FT_STATIC]; } message OneofMessage { required int32 first = 1; oneof msgs { TestMessage msg1 = 2; SubMessage msg2 = 3; } required int32 last = 4; }