utils/ValidValue.hpp
| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #pragma once | ||
| 2 | |||
| 3 | #include "simdb/Assert.hpp" | ||
| 4 | #include "simdb/Exceptions.hpp" | ||
| 5 | #include "simdb/utils/TypeTraits.hpp" | ||
| 6 | #include <iostream> | ||
| 7 | #include <utility> | ||
| 8 | |||
| 9 | namespace simdb { | ||
| 10 | |||
| 11 | template <typename T> class ValidValue | ||
| 12 | { | ||
| 13 | private: | ||
| 14 | T value_{}; | ||
| 15 | bool valid_ = false; | ||
| 16 | |||
| 17 | public: | ||
| 18 | 53666 | ValidValue() = default; | |
| 19 | |||
| 20 | 4412 | explicit ValidValue(const T& val) : | |
| 21 | 4412 | value_(val), | |
| 22 | 4412 | valid_(true) | |
| 23 | { | ||
| 24 | 4412 | } | |
| 25 | |||
| 26 | explicit ValidValue(T&& val) : | ||
| 27 | value_(std::move(val)), | ||
| 28 | valid_(true) | ||
| 29 | { | ||
| 30 | } | ||
| 31 | |||
| 32 | 134318 | ValidValue& operator=(const T& val) | |
| 33 | { | ||
| 34 | 134318 | value_ = val; | |
| 35 | 134318 | valid_ = true; | |
| 36 | 134318 | return *this; | |
| 37 | } | ||
| 38 | |||
| 39 | 375442 | ValidValue& operator=(T&& val) | |
| 40 | { | ||
| 41 | 375442 | value_ = std::move(val); | |
| 42 | 375442 | valid_ = true; | |
| 43 | 375442 | return *this; | |
| 44 | } | ||
| 45 | |||
| 46 | 168458 | const T& getValue() const | |
| 47 | { | ||
| 48 | 168458 | simdb_assert(valid_, "Invalid value - not set"); | |
| 49 | 168458 | return value_; | |
| 50 | } | ||
| 51 | |||
| 52 | 659050 | T& getValue() | |
| 53 | { | ||
| 54 | 659052 | simdb_assert(valid_, "Invalid value - not set"); | |
| 55 | 659049 | return value_; | |
| 56 | } | ||
| 57 | |||
| 58 | operator const T&() const { return getValue(); } | ||
| 59 | |||
| 60 | 474673 | operator T&() { return getValue(); } | |
| 61 | |||
| 62 | 820607 | bool isValid() const { return valid_; } | |
| 63 | |||
| 64 | 375321 | void clearValid() { valid_ = false; } | |
| 65 | }; | ||
| 66 | |||
| 67 | } // namespace simdb | ||
| 68 | |||
| 69 | template <typename T> inline std::ostream& operator<<(std::ostream& os, const simdb::ValidValue<T>& vv) | ||
| 70 | { | ||
| 71 | static_assert(simdb::type_traits::has_ostream_operator_v<T>); | ||
| 72 | if (!vv.isValid()) | ||
| 73 | { | ||
| 74 | return os << "<INVALID>"; | ||
| 75 | } | ||
| 76 | return os << vv.getValue(); | ||
| 77 | } | ||
| 78 |