final Settings settings) {
        super(indexSettings, name, settings);

        final List<String> tagList = Analysis.parseWordList(environment, settings, "tags", s -> s);
        if (tagList != null) {
            posTags.addAll(tagList);
        }
    }

    @Override
    public TokenStream create(final TokenStream tokenStream) {

        List<SuggestItem> items = null;
        final List<String> tagList = new ArrayList<>();
        for (final String tagFieldName : tagFieldNames) {
            tagList.addAll(Arrays.asList(getFieldValues(document, tagFieldName)));
        }
        final String[] tags = tagList.toArray(new String[tagList.size()]);
        final String[] roles = getFieldValues(document, roleFieldName);

            final List<String> tagList = new ArrayList<>();
            final String key = ComponentUtil.getVirtualHostHelper().getVirtualHostKey();
            if (StringUtil.isNotBlank(key)) {
                tagList.add(key);
            }
            runtime.registerData("popularWords", popularWordHelper.getWordList(SearchRequestType.SEARCH, null,
                    tagList.toArray(new String[tagList.size()]), null, null, null));

		Elem Expr
		expr
	}

	// ...Elem
	DotsType struct {
		Elem Expr
		expr
	}

	// struct { FieldList[0] TagList[0]; FieldList[1] TagList[1]; ... }
	StructType struct {
		FieldList []*Field
		TagList   []*BasicLit // i >= len(TagList) || TagList[i] == nil means no tag for field i
		expr
	}

	// Name Type
	//      Type
	Field struct {

// xlistList elements do not exist (targsList and xlistList are nil) or the elements are nil.
// For each partially instantiated generic function operand, the corresponding targsList and
// xlistList elements are the operand's partial type arguments and type expression lists.
func (check *Checker) genericExprList(elist []syntax.Expr) (resList []*operand, targsList [][]Type, xlistList [][]syntax.Expr) {

        final List<String> tagList = new ArrayList<>(item1.getTags().length + item2.getTags().length);
        Collections.addAll(tagList, item1.getTags());
        for (final String tag : item2.getTags()) {
            if (!tagList.contains(tag)) {
                tagList.add(tag);
            }
        }
        mergedItem.tags = tagList.toArray(new String[tagList.size()]);

// xlistList elements do not exist (targsList and xlistList are nil) or the elements are nil.
// For each partially instantiated generic function operand, the corresponding targsList and
// xlistList elements are the operand's partial type arguments and type expression lists.
func (check *Checker) genericExprList(elist []ast.Expr) (resList []*operand, targsList [][]Type, xlistList [][]ast.Expr) {

		// share the same type expression. Only check type if it's a new type.
		if i == 0 || f.Type != prev {
			typ = check.varType(f.Type)
			prev = f.Type
		}
		tag = ""
		if i < len(e.TagList) {
			tag = check.tag(e.TagList[i])
		}
		if f.Name != nil {
			// named field
			add(f.Name, false)
		} else {
			// embedded field
			// spec: "An embedded type must be specified as a type name T or as a

		testenv.SkipFlaky(t, 59940)
	}
	return NewRepo(ctx, vcsName, remote)
}

func TestTags(t *testing.T) {
	t.Parallel()

	type tagsTest struct {
		repo   string
		prefix string
		tags   []Tag
	}

	runTest := func(tt tagsTest) func(*testing.T) {
		return func(t *testing.T) {
			t.Parallel()
			ctx := testContext(t)

			r, err := testRepo(ctx, t, tt.repo)
			if err != nil {

			m = n.Elem
		case *DotsType:
			m = n.Elem
		case *StructType:
			if l := lastField(n.FieldList); l != nil {
				m = l
				continue
			}
			return n.Pos()
			// TODO(gri) need to take TagList into account
		case *Field:
			if n.Type != nil {
				m = n.Type
				continue
			}
			m = n.Name
		case *InterfaceType:
			if l := lastField(n.MethodList); l != nil {
				m = l
				continue