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comparison src/search.sig @ 2:64f09f7822c3

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Start of elaboration
author Adam Chlipala <adamc@hcoop.net>
date Sat, 26 Jan 2008 14:27:33 -0500
parents
children 38bf996e1c2e
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1:4202f6eda946 2:64f09f7822c3
1 (* Copyright (c) 2008, Adam Chlipala
2 * All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * - Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 * - Redistributions in binary form must reproduce the above copyright notice,
10 * this list of conditions and the following disclaimer in the documentation
11 * and/or other materials provided with the distribution.
12 * - The names of contributors may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
26 *)
27
28 signature SEARCH = sig
29
30 datatype ('state, 'abort) result =
31 Return of 'abort
32 | Continue of 'state
33
34 type ('data, 'state, 'abort) mapfold_arg =
35 'data * 'state -> ('data * 'state, 'abort) result
36
37 type ('data, 'state, 'abort) mapfolder =
38 'data -> 'state -> ('data * 'state, 'abort) result
39
40 val return2 : 'state1 -> 'state2 -> ('state1 * 'state2, 'abort) result
41
42 val map : ('state1, 'abort) result
43 * ('state1 -> 'state2)
44 -> ('state2, 'abort) result
45
46 val map2 : ('state2 -> ('state1 * 'state2, 'abort) result)
47 * ('state1 -> 'state1')
48 -> ('state2 -> ('state1' * 'state2, 'abort) result)
49
50 val bind : ('state1, 'abort) result
51 * ('state1 -> ('state2, 'abort) result)
52 -> ('state2, 'abort) result
53
54 val bind2 : ('state2 -> ('state1 * 'state2, 'abort) result)
55 * ('state1 -> 'state2 -> ('state1 * 'state2, 'abort) result)
56 -> ('state2 -> ('state1 * 'state2, 'abort) result)
57
58 val bindP : (('state11 * 'state12) * 'state2, 'abort) result
59 * ('state11 * 'state2 -> ('state11 * 'state2, 'abort) result)
60 -> (('state11 * 'state12) * 'state2, 'abort) result
61
62 end