| /** @file |
| |
| @section license License |
| |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you 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 |
| |
| http://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 <string_view> |
| #include <unordered_map> |
| |
| #include "tscore/HashFNV.h" |
| |
| /// Hash functor for @c string_view |
| inline size_t |
| TsLuaConfigSVHash(std::string_view const &sv) |
| { |
| ATSHash64FNV1a h; |
| h.update(sv.data(), sv.size()); |
| return h.get(); |
| } |
| |
| class TsEnumDescriptor |
| { |
| public: |
| struct Pair { |
| std::string_view key; |
| int value; |
| }; |
| TsEnumDescriptor(std::initializer_list<Pair> pairs) : values{pairs.size(), &TsLuaConfigSVHash}, keys{pairs.size()} |
| { |
| for (auto &p : pairs) { |
| values[p.key] = p.value; |
| keys[p.value] = p.key; |
| } |
| } |
| std::unordered_map<std::string_view, int, size_t (*)(std::string_view const &)> values; |
| std::unordered_map<int, std::string_view> keys; |
| int |
| get(std::string_view key) |
| { |
| auto it = values.find(key); |
| if (it != values.end()) { |
| return it->second; |
| } |
| return -1; |
| } |
| }; |