1 // Copyright 2022 gRPC authors.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 //     http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #ifndef GRPC_SRC_CORE_LIB_GPRPP_PACKED_TABLE_H
16 #define GRPC_SRC_CORE_LIB_GPRPP_PACKED_TABLE_H
17 
18 #include <grpc/support/port_platform.h>
19 
20 #include "src/core/lib/gprpp/sorted_pack.h"
21 #include "src/core/lib/gprpp/table.h"
22 
23 namespace grpc_core {
24 
25 namespace packed_table_detail {
26 template <typename A, typename B>
27 struct Cmp {
28   static constexpr bool kValue = alignof(A) > alignof(B) ||
29                                  (alignof(A) == alignof(B) &&
30                                   sizeof(A) > sizeof(B));
31 };
32 };  // namespace packed_table_detail
33 
34 template <typename... T>
35 using PackedTable =
36     typename WithSortedPack<Table, packed_table_detail::Cmp, T...>::Type;
37 
38 }  // namespace grpc_core
39 
40 #endif  // GRPC_SRC_CORE_LIB_GPRPP_PACKED_TABLE_H
41