1 | svoid allowDeferredComputation(Runnable r) { |
2 | try { |
3 | callF(r); |
4 | } catch (RuntimeException e) { |
5 | Throwable e2 = innerException(e); |
6 | if (!e2 instanceof DeferredComputationException) throw rethrow(e); |
7 | } |
8 | } |
9 | |
10 | // f1: func -> A, f2 : func(A) -> B, returns: B |
11 | static O chainDeferrableComputations(O f1, fO f2) { |
12 | O result; |
13 | try { |
14 | result = callF(f1); |
15 | } catch (RuntimeException e) { |
16 | Throwable e2 = innerException(e); |
17 | if (!e2 instanceof DeferredComputationException) throw rethrow(e); |
18 | final DeferredComputation f = e2/DeferredComputationException.future; |
19 | |
20 | final new DeferredComputation future2; |
21 | f.setContinuation(r { |
22 | try { |
23 | future2.setValue(callF(f2, f.getValue())); |
24 | } catch e { |
25 | future2.setError(e); |
26 | } |
27 | }); |
28 | throw DeferredComputationException(future2); |
29 | } |
30 | ret callF(f2, result); |
31 | } |
32 | |
33 | static <A> A waitThenCompute(int delay, final F0<A> f) { |
34 | final new DeferredComputation dc; |
35 | doLater(delay, r { |
36 | try { |
37 | dc.setValue(callF(f)); |
38 | } catch e { |
39 | dc.setError(e); |
40 | } |
41 | }); |
42 | throw DeferredComputationException(dc); |
43 | } |
44 | |
45 | sclass DeferredComputationException extends QuickException { |
46 | DeferredComputation future; |
47 | |
48 | *(DeferredComputation *future) {} |
49 | } |
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Travelled to 13 computer(s): aoiabmzegqzx, bhatertpkbcr, cbybwowwnfue, cfunsshuasjs, gwrvuhgaqvyk, ishqpsrjomds, lpdgvwnxivlt, mqqgnosmbjvj, pyentgdyhuwx, pzhvpgtvlbxg, tslmcundralx, tvejysmllsmz, vouqrxazstgt
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| Snippet ID: | #1015715 |
| Snippet name: | Deferred Computation [Include] |
| Eternal ID of this version: | #1015715/3 |
| Text MD5: | b933e46917dbe1ceedbbb0f2b78ea1a1 |
| Author: | stefan |
| Category: | |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2018-05-24 17:49:33 |
| Source code size: | 1234 bytes / 49 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 289 / 337 |
| Version history: | 2 change(s) |
| Referenced in: | [show references] |