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Most of expression semantics
author Adam Chlipala <adamc@hcoop.net>
date Sat, 21 Feb 2009 13:17:06 -0500
parents 44958d74c43f
children 8998114760c1
rev   line source
adamc@0 1 (* Copyright (c) 2008, Adam Chlipala
adamc@0 2 * All rights reserved.
adamc@0 3 *
adamc@0 4 * Redistribution and use in source and binary forms, with or without
adamc@0 5 * modification, are permitted provided that the following conditions are met:
adamc@0 6 *
adamc@0 7 * - Redistributions of source code must retain the above copyright notice,
adamc@0 8 * this list of conditions and the following disclaimer.
adamc@0 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@0 10 * this list of conditions and the following disclaimer in the documentation
adamc@0 11 * and/or other materials provided with the distribution.
adamc@0 12 * - The names of contributors may not be used to endorse or promote products
adamc@0 13 * derived from this software without specific prior written permission.
adamc@0 14 *
adamc@0 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@0 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@0 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@0 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@0 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@0 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@0 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@0 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@0 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@0 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@0 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@0 26 *)
adamc@0 27
adamc@4 28 structure Source = struct
adamc@0 29
adamc@0 30 type 'a located = 'a ErrorMsg.located
adamc@0 31
adamc@0 32 datatype kind' =
adamc@0 33 KType
adamc@0 34 | KArrow of kind * kind
adamc@0 35 | KName
adamc@0 36 | KRecord of kind
adamc@82 37 | KUnit
adamc@207 38 | KTuple of kind list
adamc@18 39 | KWild
adamc@0 40
adamc@0 41 withtype kind = kind' located
adamc@0 42
adamc@1 43 datatype explicitness =
adamc@1 44 Explicit
adamc@1 45 | Implicit
adamc@1 46
adamc@0 47 datatype con' =
adamc@0 48 CAnnot of con * kind
adamc@0 49
adamc@0 50 | TFun of con * con
adamc@1 51 | TCFun of explicitness * string * kind * con
adamc@0 52 | TRecord of con
adamc@0 53
adamc@34 54 | CVar of string list * string
adamc@0 55 | CApp of con * con
adamc@67 56 | CAbs of string * kind option * con
adamc@84 57 | CDisjoint of con * con * con
adamc@0 58
adamc@0 59 | CName of string
adamc@0 60
adamc@1 61 | CRecord of (con * con) list
adamc@0 62 | CConcat of con * con
adamc@67 63 | CFold
adamc@0 64
adamc@82 65 | CUnit
adamc@82 66
adamc@207 67 | CTuple of con list
adamc@207 68 | CProj of con * int
adamc@207 69
adamc@18 70 | CWild of kind
adamc@18 71
adamc@0 72 withtype con = con' located
adamc@0 73
adamc@30 74 datatype sgn_item' =
adamc@30 75 SgiConAbs of string * kind
adamc@30 76 | SgiCon of string * kind option * con
adamc@191 77 | SgiDatatype of string * string list * (string * con option) list
adamc@156 78 | SgiDatatypeImp of string * string list * string
adamc@30 79 | SgiVal of string * con
adamc@30 80 | SgiStr of string * sgn
adamc@59 81 | SgiSgn of string * sgn
adamc@58 82 | SgiInclude of sgn
adamc@88 83 | SgiConstraint of con * con
adamc@563 84 | SgiClassAbs of string * kind
adamc@563 85 | SgiClass of string * kind * con
adamc@30 86
adamc@30 87 and sgn' =
adamc@30 88 SgnConst of sgn_item list
adamc@30 89 | SgnVar of string
adamc@40 90 | SgnFun of string * sgn * sgn
adamc@42 91 | SgnWhere of sgn * string * con
adamc@59 92 | SgnProj of string * string list * string
adamc@30 93
adamc@30 94 withtype sgn_item = sgn_item' located
adamc@30 95 and sgn = sgn' located
adamc@30 96
adamc@170 97 datatype pat' =
adamc@170 98 PWild
adamc@170 99 | PVar of string
adamc@173 100 | PPrim of Prim.t
adamc@170 101 | PCon of string list * string * pat option
adamc@174 102 | PRecord of (string * pat) list * bool
adamc@170 103
adamc@170 104 withtype pat = pat' located
adamc@170 105
adamc@403 106 datatype inference =
adamc@403 107 Infer
adamc@403 108 | DontInfer
adamc@403 109 | TypesOnly
adamc@403 110
adamc@34 111 datatype exp' =
adamc@34 112 EAnnot of exp * con
adamc@34 113
adamc@34 114 | EPrim of Prim.t
adamc@403 115 | EVar of string list * string * inference
adamc@34 116 | EApp of exp * exp
adamc@34 117 | EAbs of string * con option * exp
adamc@34 118 | ECApp of exp * con
adamc@34 119 | ECAbs of explicitness * string * kind * exp
adamc@85 120 | EDisjoint of con * con * exp
adamc@34 121
adamc@34 122 | ERecord of (con * exp) list
adamc@34 123 | EField of exp * con
adamc@445 124 | EConcat of exp * exp
adamc@149 125 | ECut of exp * con
adamc@493 126 | ECutMulti of exp * con
adamc@71 127 | EFold
adamc@34 128
adamc@211 129 | EWild
adamc@210 130
adamc@170 131 | ECase of exp * (pat * exp) list
adamc@170 132
adamc@446 133 | ELet of edecl list * exp
adamc@446 134
adamc@446 135 and edecl' =
adamc@446 136 EDVal of string * con option * exp
adamc@446 137 | EDValRec of (string * con option * exp) list
adamc@446 138
adamc@34 139 withtype exp = exp' located
adamc@446 140 and edecl = edecl' located
adamc@34 141
adamc@1 142 datatype decl' =
adamc@1 143 DCon of string * kind option * con
adamc@191 144 | DDatatype of string * string list * (string * con option) list
adamc@156 145 | DDatatypeImp of string * string list * string
adamc@8 146 | DVal of string * con option * exp
adamc@123 147 | DValRec of (string * con option * exp) list
adamc@30 148 | DSgn of string * sgn
adamc@30 149 | DStr of string * sgn option * str
adamc@48 150 | DFfiStr of string * sgn
adamc@61 151 | DOpen of string * string list
adamc@88 152 | DConstraint of con * con
adamc@88 153 | DOpenConstraints of string * string list
adamc@109 154 | DExport of str
adamc@203 155 | DTable of string * con
adamc@338 156 | DSequence of string
adamc@563 157 | DClass of string * kind * con
adamc@271 158 | DDatabase of string
adamc@459 159 | DCookie of string * con
adamc@30 160
adamc@30 161 and str' =
adamc@30 162 StrConst of decl list
adamc@30 163 | StrVar of string
adamc@34 164 | StrProj of str * string
adamc@40 165 | StrFun of string * sgn * sgn option * str
adamc@44 166 | StrApp of str * str
adamc@1 167
adamc@1 168 withtype decl = decl' located
adamc@30 169 and str = str' located
adamc@1 170
adamc@1 171 type file = decl list
adamc@1 172
adamc@0 173 end