def resolve_symbols(self, tree, database, link_resolver):
        self.typed_symbols = self.__get_empty_typed_symbols()
        all_syms = OrderedSet()
        for sym_name in self.symbol_names:
            sym = database.get_symbol(sym_name)
            self.__query_extra_symbols(
                sym, all_syms, tree, link_resolver, database)
        if tree.project.is_toplevel:
            page_path = self.link.ref
        else:
            page_path = self.project_name + '/' + self.link.ref
        if self.meta.get("auto-sort", True):
            all_syms = sorted(all_syms, key=lambda x: x.unique_name)
        for sym in all_syms:
            sym.update_children_comments()
            self.__resolve_symbol(sym, link_resolver, page_path)
            self.symbol_names.add(sym.unique_name)
        no_parent_syms = self.by_parent_symbols.pop(None, None)
        if no_parent_syms:
            self.by_parent_symbols[None] = no_parent_syms
        for sym_type in [ClassSymbol, AliasSymbol, InterfaceSymbol,
                         StructSymbol]:
            syms = self.typed_symbols[sym_type].symbols
            if not syms:
                continue
            if self.title is None:
                self.title = syms[0].display_name
            if self.comment is None:
                self.comment = Comment(name=self.name)
                self.comment.short_description = syms[
                    0].comment.short_description
                self.comment.title = syms[0].comment.title
            break