summaryrefslogtreecommitdiff
path: root/src/source.sml
blob: a04836bbe88cb1630171cbd19984ca4afbc68554 (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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
(* Copyright (c) 2008, Adam Chlipala
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 * - The names of contributors may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *)

structure Source = struct

type 'a located = 'a ErrorMsg.located

datatype kind' =
         KType
       | KArrow of kind * kind
       | KName
       | KRecord of kind
       | KUnit
       | KWild

withtype kind = kind' located

datatype explicitness =
         Explicit
       | Implicit

datatype con' =
         CAnnot of con * kind

       | TFun of con * con
       | TCFun of explicitness * string * kind * con
       | TDisjoint of con * con * con
       | TRecord of con

       | CVar of string list * string
       | CApp of con * con
       | CAbs of string * kind option * con
       | CDisjoint of con * con * con

       | CName of string

       | CRecord of (con * con) list
       | CConcat of con * con
       | CFold

       | CUnit

       | CWild of kind

withtype con = con' located

datatype sgn_item' =
         SgiConAbs of string * kind
       | SgiCon of string * kind option * con
       | SgiVal of string * con
       | SgiStr of string * sgn
       | SgiSgn of string * sgn
       | SgiInclude of sgn
       | SgiConstraint of con * con

and sgn' =
    SgnConst of sgn_item list
  | SgnVar of string
  | SgnFun of string * sgn * sgn
  | SgnWhere of sgn * string * con
  | SgnProj of string * string list * string

withtype sgn_item = sgn_item' located
and sgn = sgn' located

datatype exp' =
         EAnnot of exp * con

       | EPrim of Prim.t
       | EVar of string list * string
       | EApp of exp * exp
       | EAbs of string * con option * exp
       | ECApp of exp * con
       | ECAbs of explicitness * string * kind * exp
       | EDisjoint of con * con * exp

       | ERecord of (con * exp) list
       | EField of exp * con
       | EFold

withtype exp = exp' located

datatype decl' =
         DCon of string * kind option * con
       | DVal of string * con option * exp
       | DValRec of (string * con option * exp) list
       | DSgn of string * sgn
       | DStr of string * sgn option * str
       | DFfiStr of string * sgn
       | DOpen of string * string list
       | DConstraint of con * con
       | DOpenConstraints of string * string list
       | DExport of str

     and str' =
         StrConst of decl list
       | StrVar of string
       | StrProj of str * string
       | StrFun of string * sgn * sgn option * str
       | StrApp of str * str

withtype decl = decl' located
     and str = str' located

type file = decl list

end