| /** |
| * Copyright 2011-2015 Quickstep Technologies LLC. |
| * Copyright 2015 Pivotal Software, Inc. |
| * |
| * 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 |
| * |
| * 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_LONG_TYPE_HPP_ |
| #define QUICKSTEP_TYPES_LONG_TYPE_HPP_ |
| |
| #include <cstdint> |
| #include <cstdio> |
| #include <limits> |
| #include <string> |
| |
| #include "types/NumericSuperType.hpp" |
| #include "types/TypeID.hpp" |
| #include "types/TypedValue.hpp" |
| #include "utility/Macros.hpp" |
| |
| namespace quickstep { |
| |
| class Type; |
| |
| /** \addtogroup Types |
| * @{ |
| */ |
| |
| /** |
| * @brief A type representing a 64-bit integer. |
| **/ |
| class LongType : public NumericSuperType<std::int64_t> { |
| public: |
| static const TypeID kStaticTypeID; |
| |
| /** |
| * @brief Get a reference to the non-nullable singleton instance of this |
| * Type. |
| * |
| * @return A reference to the non-nullable singleton instance of this Type. |
| **/ |
| static const LongType& InstanceNonNullable() { |
| static LongType instance(false); |
| return instance; |
| } |
| |
| /** |
| * @brief Get a reference to the nullable singleton instance of this Type. |
| * |
| * @return A reference to the nullable singleton instance of this Type. |
| **/ |
| static const LongType& InstanceNullable() { |
| static LongType instance(true); |
| return instance; |
| } |
| |
| /** |
| * @brief Get a reference to a singleton instance of this Type. |
| * |
| * @param nullable Whether to get the nullable version of this Type. |
| * @return A reference to the desired singleton instance of this Type. |
| **/ |
| static const LongType& Instance(const bool nullable) { |
| if (nullable) { |
| return InstanceNullable(); |
| } else { |
| return InstanceNonNullable(); |
| } |
| } |
| |
| const Type& getNullableVersion() const override { |
| return InstanceNullable(); |
| } |
| |
| const Type& getNonNullableVersion() const override { |
| return InstanceNonNullable(); |
| } |
| |
| bool isSafelyCoercibleFrom(const Type &original_type) const override; |
| |
| // Fully represented digits, single leading digit, and possible '-' |
| // character. |
| int getPrintWidth() const override { |
| return std::numeric_limits<std::int64_t>::digits10 + 2; |
| } |
| |
| std::string printValueToString(const TypedValue &value) const override; |
| |
| void printValueToFile(const TypedValue &value, |
| FILE *file, |
| const int padding = 0) const override; |
| |
| bool parseValueFromString(const std::string &value_string, |
| TypedValue *value) const override; |
| |
| TypedValue coerceValue(const TypedValue &original_value, |
| const Type &original_type) const override; |
| |
| private: |
| explicit LongType(const bool nullable) |
| : NumericSuperType<std::int64_t>(kLong, nullable) { |
| } |
| |
| DISALLOW_COPY_AND_ASSIGN(LongType); |
| }; |
| |
| /** @} */ |
| |
| } // namespace quickstep |
| |
| #endif // QUICKSTEP_TYPES_LONG_TYPE_HPP_ |