blob: b373db4f848a7ac85e9588adc4bee766fa693902 (
plain)
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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
(.using
[library
[lux "*"
[abstract
[monad {"+" do}]]
[control
[io {"+" IO}]
["[0]" try {"+" Try}]
[concurrency
["[0]" async {"+" Async}]
["[0]" stm]]]
[data
[binary {"+" Binary}]]
[world
[net
[uri {"+" URI}]]]]])
(type: .public (Repository !)
(Interface
(: Text
description)
(: (-> URI (! (Try Binary)))
download)
(: (-> URI Binary (! (Try Any)))
upload)))
(def: .public (async repository)
(-> (Repository IO) (Repository Async))
(implementation
(def: description
(# repository description))
(def: (download uri)
(async.future (# repository download uri)))
(def: (upload uri content)
(async.future (# repository upload uri content)))
))
(type: .public (Mock s)
(Interface
(: Text
the_description)
(: (-> URI s (Try [s Binary]))
on_download)
(: (-> URI Binary s (Try s))
on_upload)))
(def: .public (mock mock init)
(All (_ s) (-> (Mock s) s (Repository Async)))
(let [state (stm.var init)]
(implementation
(def: description
(# mock the_description))
(def: (download uri)
(stm.commit!
(do [! stm.monad]
[|state| (stm.read state)]
(case (# mock on_download uri |state|)
{try.#Success [|state| output]}
(do !
[_ (stm.write |state| state)]
(in {try.#Success output}))
{try.#Failure error}
(in {try.#Failure error})))))
(def: (upload uri content)
(stm.commit!
(do [! stm.monad]
[|state| (stm.read state)]
(case (# mock on_upload uri content |state|)
{try.#Success |state|}
(do !
[_ (stm.write |state| state)]
(in {try.#Success []}))
{try.#Failure error}
(in {try.#Failure error})))))
)))
|
