Method ParseProtoFields

native/thirdpart/flatbuffers/idl_parser.cpp:2768–2918

}

CheckedError Parser::ParseProtoFields(StructDef *struct_def, bool isextend,
                                      bool inside_oneof) {
  EXPECT('{');
  while (token_ != '}') {
    if (IsIdent("message") || IsIdent("extend") || IsIdent("enum")) {
      // Nested declarations.
      ECHECK(ParseProtoDecl());
    } else if (IsIdent("extensions")) {  // Skip these.
      NEXT();
      EXPECT(kTokenIntegerConstant);
      if (Is(kTokenIdentifier)) {
        NEXT();  // to
        NEXT();  // num
      }
      EXPECT(';');
    } else if (IsIdent("option")) {  // Skip these.
      ECHECK(ParseProtoOption());
      EXPECT(';');
    } else if (IsIdent("reserved")) {  // Skip these.
      NEXT();
      while (!Is(';')) { NEXT(); }  // A variety of formats, just skip.
      NEXT();
    } else {
      std::vector<std::string> field_comment = doc_comment_;
      // Parse the qualifier.
      bool required = false;
      bool repeated = false;
      bool oneof = false;
      if (!inside_oneof) {
        if (IsIdent("optional")) {
          // This is the default.
          NEXT();
        } else if (IsIdent("required")) {
          required = true;
          NEXT();
        } else if (IsIdent("repeated")) {
          repeated = true;
          NEXT();
        } else if (IsIdent("oneof")) {
          oneof = true;
          NEXT();
        } else {
          // can't error, proto3 allows decls without any of the above.
        }
      }
      StructDef *anonymous_struct = nullptr;
      EnumDef *oneof_union = nullptr;
      Type type;
      if (IsIdent("group") || oneof) {
        if (!oneof) NEXT();
        if (oneof && opts.proto_oneof_union) {
          auto name = MakeCamel(attribute_, true) + "Union";
          ECHECK(StartEnum(name, true, &oneof_union));
          type = Type(BASE_TYPE_UNION, nullptr, oneof_union);
        } else {
          auto name = "Anonymous" + NumToString(anonymous_counter_++);
          ECHECK(StartStruct(name, &anonymous_struct));
          type = Type(BASE_TYPE_STRUCT, anonymous_struct);