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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_HASH_MAP_H_ | 5 #ifndef VM_HASH_MAP_H_ |
6 #define VM_HASH_MAP_H_ | 6 #define VM_HASH_MAP_H_ |
7 | 7 |
8 #include "vm/growable_array.h" // For Malloc, EmptyBase | 8 #include "vm/growable_array.h" // For Malloc, EmptyBase |
9 #include "vm/zone.h" | 9 #include "vm/zone.h" |
10 | 10 |
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357 typedef T Value; | 357 typedef T Value; |
358 typedef intptr_t Key; | 358 typedef intptr_t Key; |
359 typedef T Pair; | 359 typedef T Pair; |
360 | 360 |
361 static intptr_t KeyOf(Pair kv) { return kv.first(); } | 361 static intptr_t KeyOf(Pair kv) { return kv.first(); } |
362 static T ValueOf(Pair kv) { return kv; } | 362 static T ValueOf(Pair kv) { return kv; } |
363 static inline intptr_t Hashcode(Key key) { return key; } | 363 static inline intptr_t Hashcode(Key key) { return key; } |
364 static inline bool IsKeyEqual(Pair kv, Key key) { return kv.first() == key; } | 364 static inline bool IsKeyEqual(Pair kv, Key key) { return kv.first() == key; } |
365 }; | 365 }; |
366 | 366 |
| 367 |
| 368 template<typename K, typename V> |
| 369 class RawPointerKeyValueTrait { |
| 370 public: |
| 371 typedef K* Key; |
| 372 typedef V Value; |
| 373 |
| 374 struct Pair { |
| 375 Key key; |
| 376 Value value; |
| 377 Pair() : key(NULL), value() {} |
| 378 Pair(const Key key, const Value& value) : key(key), value(value) {} |
| 379 Pair(const Pair& other) : key(other.key), value(other.value) {} |
| 380 }; |
| 381 |
| 382 static Key KeyOf(Pair kv) { return kv.key; } |
| 383 static Value ValueOf(Pair kv) { return kv.value; } |
| 384 static intptr_t Hashcode(Key key) { return reinterpret_cast<intptr_t>(key); } |
| 385 static bool IsKeyEqual(Pair kv, Key key) { return kv.key == key; } |
| 386 }; |
| 387 |
367 } // namespace dart | 388 } // namespace dart |
368 | 389 |
369 #endif // VM_HASH_MAP_H_ | 390 #endif // VM_HASH_MAP_H_ |
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