1 | sclass WeakIdentityHashSet<A> extends AbstractSet<A> {
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2 | Map<A, Bool> map = newWeakIdentityHashMap(); |
3 | |
4 | public int size() { ret map.size(); }
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5 | public Iterator<A> iterator() { ret keys(map).iterator(); }
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6 | public bool contains(O o) { ret map.containsKey(o); }
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7 | |
8 | public bool add(A a) {
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9 | ret map.put(a, Bool.TRUE) != null; |
10 | } |
11 | public bool remove(O o) { ret map.remove(o) != null; }
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12 | |
13 | O mutex() { ret collectionMutex(map); }
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14 | } |
Began life as a copy of #1011596
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| Snippet ID: | #1015374 |
| Snippet name: | WeakIdentityHashSet (hopefully complete, synchronized) |
| Eternal ID of this version: | #1015374/1 |
| Text MD5: | c5e5be837e1bfd21317d51b1c475a147 |
| Author: | stefan |
| Category: | javax / collections |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2018-05-13 14:15:47 |
| Source code size: | 450 bytes / 14 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 322 / 986 |
| Referenced in: | [show references] |