Op address is 0x55eddbdfba80 op B::OP=SCALAR(0x55eddba2c578), name: padsv, parent: B::BINOP=SCALAR(0x55eddba422d0) B::Concise::compile(CODE(0x55eddbe20a80)) UNOP (0x55eddbe1ab10) leavesub [1] LISTOP (0x55eddbdfb9a0) lineseq # 37: my $site = sub { callsite() }; COP (0x55eddbab2048) nextstate BINOP (0x55eddbdfb9f8) sassign UNOP (0x55eddbdfba40) srefgen UNOP (0x55eddbdfbab8) null [157] SVOP (0x55eddbdfbb00) anoncode [2] CV (0x55eddba4d0f8) OP (0x55eddbdfbb40) padsv [1] # 38: my $addr = $site->(); COP (0x55eddbab1e68) nextstate BINOP (0x55eddbab1ec8) sassign UNOP (0x55eddbab1f10) entersub [4] UNOP (0x55eddbab1f88) null [157] OP (0x55eddbab1f50) pushmark UNOP (0x55eddbab1fd0) null [16] OP (0x55eddbab2010) padsv [1] OP (0x55eddbdfba80) padsv [3]