| /** |
| * 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_PATTERN_MATCHING_COMPARISON_HPP_ |
| #define QUICKSTEP_TYPES_OPERATIONS_COMPARISONS_PATTERN_MATCHING_COMPARISON_HPP_ |
| |
| #include "types/operations/comparisons/Comparison.hpp" |
| #include "types/operations/comparisons/ComparisonID.hpp" |
| #include "utility/Macros.hpp" |
| |
| namespace quickstep { |
| |
| class Type; |
| class TypedValue; |
| |
| /** \addtogroup Types |
| * @{ |
| */ |
| |
| /** |
| * @brief The pattern matching Comparison. |
| **/ |
| class PatternMatchingComparison : public Comparison { |
| public: |
| /** |
| * @brief Get a reference to the singleton instance of the specified pattern |
| * matching operation with regard to the ComparisonID. |
| * |
| * @param sub_type The specified type of the pattern matching, which can be |
| * kLike, kNotLike, kRegexMatch or kNotRegexMatch. |
| * @return A reference to the singleton instance of the specified pattern |
| * matching operation. |
| **/ |
| static const PatternMatchingComparison& Instance(const ComparisonID sub_type); |
| |
| bool canCompareTypes(const Type &left, const Type &right) const override; |
| |
| bool canComparePartialTypes(const Type *left_type, |
| const Type *right_type) const override; |
| |
| bool compareTypedValuesChecked(const TypedValue &left, |
| const Type &left_type, |
| const TypedValue &right, |
| const Type &right_type) const override; |
| |
| UncheckedComparator* makeUncheckedComparatorForTypes(const Type &left, |
| const Type &right) const override; |
| |
| private: |
| explicit PatternMatchingComparison(const ComparisonID sub_type) |
| : Comparison(sub_type) { |
| } |
| |
| DISALLOW_COPY_AND_ASSIGN(PatternMatchingComparison); |
| }; |
| |
| /** @} */ |
| |
| } // namespace quickstep |
| |
| #endif // QUICKSTEP_TYPES_OPERATIONS_COMPARISONS_PATTERN_MATCHING_COMPARISON_HPP_ |