| 60 | * @note ObjectMap `operator[]` returns one of these, which provides behaviour consistent with V* |
| 61 | */ |
| 62 | class Value |
| 63 | { |
| 64 | public: |
| 65 | Value(ObjectMap<K, V>& map, const K& key) : map(map), key(key) |
| 66 | { |
| 67 | } |
| 68 | |
| 69 | const K& getKey() const |
| 70 | { |
| 71 | return key; |
| 72 | } |
| 73 | |
| 74 | V* getValue() const |
| 75 | { |
| 76 | return map.find(key); |
| 77 | } |
| 78 | |
| 79 | Value& operator=(V* newValue) |
| 80 | { |
| 81 | map.set(key, newValue); |
| 82 | return *this; |
| 83 | } |
| 84 | |
| 85 | operator V*() const |
| 86 | { |
| 87 | return getValue(); |
| 88 | } |
| 89 | |
| 90 | V* operator->() const |
| 91 | { |
| 92 | return getValue(); |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * @brief Remove this value from the map |
| 97 | * @retval bool true if the value was found and removed |
| 98 | */ |
| 99 | bool remove() |
| 100 | { |
| 101 | return map.remove(key); |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * @brief Get the value for a given key and remove it from the map, without destroying it |
| 106 | * @retval V* |
| 107 | * @note The returned object must be freed by the caller when no longer required |
| 108 | */ |
| 109 | V* extract() |
| 110 | { |
| 111 | return map.extract(key); |
| 112 | } |
| 113 | |
| 114 | private: |
| 115 | ObjectMap<K, V>& map; |
| 116 | K key; |
| 117 | }; |
| 118 | |
| 119 | /** |