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comparison dwt/dwthelper/WeakHashMap.d @ 0:380af2bdd8e5

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author Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
date Sat, 09 Aug 2008 17:00:02 +0200
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-1:000000000000 0:380af2bdd8e5
1 module dwt.dwthelper.WeakHashMap;
2
3
4 /+
5 Is not yet 'weak'
6 +/
7 class WeakHashMap {
8
9 static class Ref {
10 size_t ptr;
11 this(Object k){
12 ptr = cast(size_t)cast(void*)k;
13 }
14 }
15
16 Object[ Ref ] data;
17
18 public void add (Object key, Object element){
19 auto k = new Ref(key);
20 data[ k ] = element;
21 }
22 public void removeKey (Object key){
23 scope k = new Ref(key);
24 data.remove( k );
25 }
26 public Object get(Object key){
27 scope k = new Ref(key);
28 if( auto p = k in data ){
29 return *p;
30 }
31 return null;
32 }
33 }