1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
#ifndef __icon_cache_ah__
#define __icon_cache_ah__
#include "IconCache.h"
aspect Cache {
// cache instance
IconCache iconcache;
// initialize icon cache
Cache () : iconcache (5, 10) {}
static Cache *instance() {
static Cache cache;
return &cache;
}
public:
// add baseclass Chain to class Icon
advice classes("Icon") : slice class : public Chain;
// look for icon in cache before loading it again
advice args(c) && target("IconLoader") && call("Icon * %::Load(...)") :
around(char c) { tjp->proceed (); }
advice args(c) && target("IconLoader") && call("Icon * %::Load(...)") :
around(char c) {
Icon *i = iconcache.Find(c);
if (!i) {
tjp->proceed();
i = *tjp->result();
iconcache.Insert((Chain*)i);
} else {
*tjp->result() = i;
}
}
advice execution("% IconDrawer::foo(...)") : around () { tjp->proceed (); }
advice execution("% IconDrawer::foo(...)") : around () { tjp->proceed (); }
advice execution("% IconDrawer::foo(...)") : around () { tjp->that (); tjp->proceed (); }
// override IconLoader::Free
advice call("void IconLoader::Free(Icon *)") : around() {
}
static Cache *aspectof () {
return Cache::instance();
}
};
#endif // __icon_cache_ah__
|
