| /** |
| * 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. |
| **/ |
| |
| #ifndef QUICKSTEP_TYPES_OPERATIONS_COMPARISONS_COMPARISON_ID_HPP_ |
| #define QUICKSTEP_TYPES_OPERATIONS_COMPARISONS_COMPARISON_ID_HPP_ |
| |
| #include <type_traits> |
| |
| #include "glog/logging.h" |
| |
| namespace quickstep { |
| |
| /** \addtogroup Types |
| * @{ |
| */ |
| |
| /** |
| * @brief Concrete Comparisons. |
| **/ |
| enum class ComparisonID { |
| kEqual = 0, |
| kNotEqual, |
| kLess, |
| kLessOrEqual, |
| kGreater, |
| kGreaterOrEqual, |
| kLike, |
| kNotLike, |
| kRegexMatch, |
| kNotRegexMatch, |
| kNumComparisonIDs // Not a real ComparisonID, exists for counting purposes. |
| }; |
| |
| /** |
| * @brief Names of comparisons in the same order as BinaryOperationID. |
| **/ |
| extern const char *kComparisonNames[ |
| static_cast<typename std::underlying_type<ComparisonID>::type>( |
| ComparisonID::kNumComparisonIDs)]; |
| |
| /** |
| * @brief Short names (i.e. mathematical symbols) of comparisons in the same |
| * order as BinaryOperationID. |
| **/ |
| extern const char *kComparisonShortNames[ |
| static_cast<typename std::underlying_type<ComparisonID>::type>( |
| ComparisonID::kNumComparisonIDs)]; |
| |
| /** |
| * @brief Flips a comparison. |
| * |
| * As in greater than flips to less than, less than flips to greater than, and |
| * similarly for greater/less than or equals. Notice that flipping equals |
| * results in equals, same for not equals. |
| * |
| * @param comparison The Id of a comparison to flip. |
| * @return The flipped comparison id. |
| */ |
| inline ComparisonID flipComparisonID(const ComparisonID comparison) { |
| switch (comparison) { |
| case ComparisonID::kLess: |
| return ComparisonID::kGreater; |
| case ComparisonID::kLessOrEqual: |
| return ComparisonID::kGreaterOrEqual; |
| case ComparisonID::kGreater: |
| return ComparisonID::kLess; |
| case ComparisonID::kGreaterOrEqual: |
| return ComparisonID::kLessOrEqual; |
| case ComparisonID::kLike: |
| case ComparisonID::kNotLike: |
| case ComparisonID::kRegexMatch: |
| case ComparisonID::kNotRegexMatch: |
| LOG(FATAL) << "Cannot flip pattern matching comparison."; |
| default: |
| return comparison; |
| } |
| } |
| |
| /** @} */ |
| |
| } // namespace quickstep |
| |
| #endif // QUICKSTEP_TYPES_OPERATIONS_COMPARISONS_COMPARISON_ID_HPP_ |