| // Copyright 2020 The Pigweed Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| // use this file except in compliance with the License. You may obtain a copy of |
| // the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| // License for the specific language governing permissions and limitations under |
| // the License. |
| #pragma once |
| |
| #include <cstdint> |
| |
| namespace pw::protobuf { |
| |
| enum class WireType { |
| kVarint = 0, |
| kFixed64 = 1, |
| kDelimited = 2, |
| // Wire types 3 and 4 are deprecated per the protobuf specification. |
| kFixed32 = 5, |
| }; |
| |
| inline constexpr unsigned int kFieldNumberShift = 3u; |
| inline constexpr unsigned int kWireTypeMask = (1u << kFieldNumberShift) - 1u; |
| |
| constexpr uint32_t MakeKey(uint32_t field_number, WireType wire_type) { |
| return (field_number << kFieldNumberShift | static_cast<uint32_t>(wire_type)); |
| } |
| |
| } // namespace pw::protobuf |
