Victor Chang | ce4bf3c | 2021-01-19 16:34:24 +0000 | [diff] [blame] | 1 | // © 2020 and later: Unicode, Inc. and others. |
| 2 | // License & terms of use: http://www.unicode.org/copyright.html |
| 3 | |
| 4 | // charstrmap.h |
| 5 | // created: 2020sep01 Frank Yung-Fong Tang |
| 6 | |
| 7 | #ifndef __CHARSTRMAP_H__ |
| 8 | #define __CHARSTRMAP_H__ |
| 9 | |
| 10 | #include <utility> |
| 11 | #include "unicode/utypes.h" |
| 12 | #include "unicode/uobject.h" |
| 13 | #include "uhash.h" |
| 14 | |
| 15 | U_NAMESPACE_BEGIN |
| 16 | |
| 17 | /** |
| 18 | * Map of const char * keys & values. |
| 19 | * Stores pointers as is: Does not own/copy/adopt/release strings. |
| 20 | */ |
| 21 | class CharStringMap final : public UMemory { |
| 22 | public: |
| 23 | /** Constructs an unusable non-map. */ |
| 24 | CharStringMap() : map(nullptr) {} |
| 25 | CharStringMap(int32_t size, UErrorCode &errorCode) { |
| 26 | map = uhash_openSize(uhash_hashChars, uhash_compareChars, uhash_compareChars, |
| 27 | size, &errorCode); |
| 28 | } |
| 29 | CharStringMap(CharStringMap &&other) U_NOEXCEPT : map(other.map) { |
| 30 | other.map = nullptr; |
| 31 | } |
| 32 | CharStringMap(const CharStringMap &other) = delete; |
| 33 | ~CharStringMap() { |
| 34 | uhash_close(map); |
| 35 | } |
| 36 | |
| 37 | CharStringMap &operator=(CharStringMap &&other) U_NOEXCEPT { |
| 38 | map = other.map; |
| 39 | other.map = nullptr; |
| 40 | return *this; |
| 41 | } |
| 42 | CharStringMap &operator=(const CharStringMap &other) = delete; |
| 43 | |
| 44 | const char *get(const char *key) const { return static_cast<const char *>(uhash_get(map, key)); } |
| 45 | void put(const char *key, const char *value, UErrorCode &errorCode) { |
| 46 | uhash_put(map, const_cast<char *>(key), const_cast<char *>(value), &errorCode); |
| 47 | } |
| 48 | |
| 49 | private: |
| 50 | UHashtable *map; |
| 51 | }; |
| 52 | |
| 53 | U_NAMESPACE_END |
| 54 | |
| 55 | #endif // __CHARSTRMAP_H__ |