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comparison src/expl.sml @ 38:d16ef24de78b

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Explify
author Adam Chlipala <adamc@hcoop.net>
date Thu, 19 Jun 2008 10:06:59 -0400
parents
children 3c1ce1b4eb3d
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37:367f058aba23 38:d16ef24de78b
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 structure Expl = struct
29
30 type 'a located = 'a ErrorMsg.located
31
32 datatype kind' =
33 KType
34 | KArrow of kind * kind
35 | KName
36 | KRecord of kind
37
38 withtype kind = kind' located
39
40 datatype con' =
41 TFun of con * con
42 | TCFun of string * kind * con
43 | TRecord of con
44
45 | CRel of int
46 | CNamed of int
47 | CModProj of int * string list * string
48 | CApp of con * con
49 | CAbs of string * kind * con
50
51 | CName of string
52
53 | CRecord of kind * (con * con) list
54 | CConcat of con * con
55
56 withtype con = con' located
57
58 datatype exp' =
59 EPrim of Prim.t
60 | ERel of int
61 | ENamed of int
62 | EModProj of int * string list * string
63 | EApp of exp * exp
64 | EAbs of string * con * con * exp
65 | ECApp of exp * con
66 | ECAbs of string * kind * exp
67
68 | ERecord of (con * exp * con) list
69 | EField of exp * con * { field : con, rest : con }
70
71 withtype exp = exp' located
72
73 datatype sgn_item' =
74 SgiConAbs of string * int * kind
75 | SgiCon of string * int * kind * con
76 | SgiVal of string * int * con
77 | SgiStr of string * int * sgn
78
79 and sgn' =
80 SgnConst of sgn_item list
81 | SgnVar of int
82
83 withtype sgn_item = sgn_item' located
84 and sgn = sgn' located
85
86 datatype decl' =
87 DCon of string * int * kind * con
88 | DVal of string * int * con * exp
89 | DSgn of string * int * sgn
90 | DStr of string * int * sgn * str
91
92 and str' =
93 StrConst of decl list
94 | StrVar of int
95 | StrProj of str * string
96
97 withtype decl = decl' located
98 and str = str' located
99
100 type file = decl list
101
102 end