216 void MappingTraits<DWARFYAML::LineTableOpcode>::mapping(  in mapping()
217     IO &IO, DWARFYAML::LineTableOpcode &LineTableOpcode) {  in mapping()  argument
218   IO.mapRequired("Opcode", LineTableOpcode.Opcode);  in mapping()
219   if (LineTableOpcode.Opcode == dwarf::DW_LNS_extended_op) {  in mapping()
220     IO.mapOptional("ExtLen", LineTableOpcode.ExtLen);  in mapping()
221     IO.mapRequired("SubOpcode", LineTableOpcode.SubOpcode);  in mapping()
224   if (!LineTableOpcode.UnknownOpcodeData.empty() || !IO.outputting())  in mapping()
225     IO.mapOptional("UnknownOpcodeData", LineTableOpcode.UnknownOpcodeData);  in mapping()
226   if (!LineTableOpcode.UnknownOpcodeData.empty() || !IO.outputting())  in mapping()
227     IO.mapOptional("StandardOpcodeData", LineTableOpcode.StandardOpcodeData);  in mapping()
228   if (!LineTableOpcode.FileEntry.Name.empty() || !IO.outputting())  in mapping()
229     IO.mapOptional("FileEntry", LineTableOpcode.FileEntry);  in mapping()
230   if (LineTableOpcode.Opcode == dwarf::DW_LNS_advance_line || !IO.outputting())  in mapping()
231     IO.mapOptional("SData", LineTableOpcode.SData);  in mapping()
232   IO.mapOptional("Data", LineTableOpcode.Data);  in mapping()