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Start of kind polymorphism, up to the point where demo/hello elaborates with updated Basis/Top
author Adam Chlipala <adamc@hcoop.net>
date Sun, 22 Feb 2009 16:10:25 -0500
parents 8998114760c1
children 12b73f3c108e
rev   line source
adamc@2 1 (* Copyright (c) 2008, Adam Chlipala
adamc@2 2 * All rights reserved.
adamc@2 3 *
adamc@2 4 * Redistribution and use in source and binary forms, with or without
adamc@2 5 * modification, are permitted provided that the following conditions are met:
adamc@2 6 *
adamc@2 7 * - Redistributions of source code must retain the above copyright notice,
adamc@2 8 * this list of conditions and the following disclaimer.
adamc@2 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@2 10 * this list of conditions and the following disclaimer in the documentation
adamc@2 11 * and/or other materials provided with the distribution.
adamc@2 12 * - The names of contributors may not be used to endorse or promote products
adamc@2 13 * derived from this software without specific prior written permission.
adamc@2 14 *
adamc@2 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@2 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@2 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@2 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@2 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@2 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@2 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@2 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@2 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@2 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@2 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@2 26 *)
adamc@2 27
adamc@2 28 structure Elab = struct
adamc@2 29
adamc@2 30 type 'a located = 'a ErrorMsg.located
adamc@2 31
adamc@2 32 datatype kind' =
adamc@2 33 KType
adamc@2 34 | KArrow of kind * kind
adamc@2 35 | KName
adamc@2 36 | KRecord of kind
adamc@82 37 | KUnit
adamc@207 38 | KTuple of kind list
adamc@2 39
adamc@2 40 | KError
adamc@76 41 | KUnif of ErrorMsg.span * string * kind option ref
adamc@2 42
adamc@623 43 | KRel of int
adamc@623 44 | KFun of string * kind
adamc@623 45
adamc@2 46 withtype kind = kind' located
adamc@2 47
adamc@2 48 datatype explicitness =
adamc@2 49 Explicit
adamc@2 50 | Implicit
adamc@2 51
adamc@334 52 datatype auto_instantiate =
adamc@334 53 Instantiate
adamc@334 54 | LeaveAlone
adamc@334 55
adamc@2 56 datatype con' =
adamc@2 57 TFun of con * con
adamc@2 58 | TCFun of explicitness * string * kind * con
adamc@2 59 | TRecord of con
adamc@2 60
adamc@2 61 | CRel of int
adamc@2 62 | CNamed of int
adamc@34 63 | CModProj of int * string list * string
adamc@2 64 | CApp of con * con
adamc@8 65 | CAbs of string * kind * con
adamc@345 66 | CDisjoint of auto_instantiate * con * con * con
adamc@2 67
adamc@623 68 | CKAbs of string * con
adamc@623 69 | CKApp of con * kind
adamc@623 70 | TKFun of string * con
adamc@623 71
adamc@2 72 | CName of string
adamc@2 73
adamc@2 74 | CRecord of kind * (con * con) list
adamc@2 75 | CConcat of con * con
adamc@621 76 | CMap of kind * kind
adamc@2 77
adamc@82 78 | CUnit
adamc@82 79
adamc@207 80 | CTuple of con list
adamc@207 81 | CProj of con * int
adamc@207 82
adamc@2 83 | CError
adamc@76 84 | CUnif of ErrorMsg.span * kind * string * con option ref
adamc@2 85
adamc@2 86 withtype con = con' located
adamc@2 87
adamc@188 88 datatype datatype_kind =
adamc@188 89 Enum
adamc@198 90 | Option
adamc@188 91 | Default
adamc@188 92
adamc@171 93 datatype patCon =
adamc@171 94 PConVar of int
adamc@171 95 | PConProj of int * string list * string
adamc@171 96
adamc@171 97 datatype pat' =
adamc@171 98 PWild
adamc@182 99 | PVar of string * con
adamc@173 100 | PPrim of Prim.t
adamc@191 101 | PCon of datatype_kind * patCon * con list * pat option
adamc@182 102 | PRecord of (string * pat * con) list
adamc@171 103
adamc@171 104 withtype pat = pat' located
adamc@171 105
adamc@9 106 datatype exp' =
adamc@14 107 EPrim of Prim.t
adamc@14 108 | ERel of int
adamc@9 109 | ENamed of int
adamc@34 110 | EModProj of int * string list * string
adamc@9 111 | EApp of exp * exp
adamc@26 112 | EAbs of string * con * con * exp
adamc@9 113 | ECApp of exp * con
adamc@9 114 | ECAbs of explicitness * string * kind * exp
adamc@9 115
adamc@623 116 | EKAbs of string * exp
adamc@623 117 | EKApp of exp * kind
adamc@623 118
adamc@29 119 | ERecord of (con * exp * con) list
adamc@12 120 | EField of exp * con * { field : con, rest : con }
adamc@445 121 | EConcat of exp * con * exp * con
adamc@149 122 | ECut of exp * con * { field : con, rest : con }
adamc@493 123 | ECutMulti of exp * con * { rest : con }
adamc@12 124
adamc@182 125 | ECase of exp * (pat * exp) list * { disc : con, result : con }
adamc@171 126
adamc@9 127 | EError
adamc@228 128 | EUnif of exp option ref
adamc@9 129
adamc@447 130 | ELet of edecl list * exp
adamc@447 131
adamc@447 132 and edecl' =
adamc@447 133 EDVal of string * con * exp
adamc@447 134 | EDValRec of (string * con * exp) list
adamc@447 135
adamc@9 136 withtype exp = exp' located
adamc@447 137 and edecl = edecl' located
adamc@9 138
adamc@31 139 datatype sgn_item' =
adamc@31 140 SgiConAbs of string * int * kind
adamc@31 141 | SgiCon of string * int * kind * con
adamc@191 142 | SgiDatatype of string * int * string list * (string * int * con option) list
adamc@191 143 | SgiDatatypeImp of string * int * int * string list * string * string list * (string * int * con option) list
adamc@31 144 | SgiVal of string * int * con
adamc@31 145 | SgiStr of string * int * sgn
adamc@59 146 | SgiSgn of string * int * sgn
adamc@88 147 | SgiConstraint of con * con
adamc@563 148 | SgiClassAbs of string * int * kind
adamc@563 149 | SgiClass of string * int * kind * con
adamc@31 150
adamc@31 151 and sgn' =
adamc@31 152 SgnConst of sgn_item list
adamc@31 153 | SgnVar of int
adamc@41 154 | SgnFun of string * int * sgn * sgn
adamc@42 155 | SgnWhere of sgn * string * con
adamc@59 156 | SgnProj of int * string list * string
adamc@31 157 | SgnError
adamc@31 158
adamc@31 159 withtype sgn_item = sgn_item' located
adamc@31 160 and sgn = sgn' located
adamc@31 161
adamc@2 162 datatype decl' =
adamc@5 163 DCon of string * int * kind * con
adamc@191 164 | DDatatype of string * int * string list * (string * int * con option) list
adamc@191 165 | DDatatypeImp of string * int * int * string list * string * string list * (string * int * con option) list
adamc@9 166 | DVal of string * int * con * exp
adamc@123 167 | DValRec of (string * int * con * exp) list
adamc@31 168 | DSgn of string * int * sgn
adamc@31 169 | DStr of string * int * sgn * str
adamc@48 170 | DFfiStr of string * int * sgn
adamc@88 171 | DConstraint of con * con
adamc@109 172 | DExport of int * sgn * str
adamc@205 173 | DTable of int * string * int * con
adamc@338 174 | DSequence of int * string * int
adamc@563 175 | DClass of string * int * kind * con
adamc@271 176 | DDatabase of string
adamc@459 177 | DCookie of int * string * int * con
adamc@31 178
adamc@31 179 and str' =
adamc@31 180 StrConst of decl list
adamc@31 181 | StrVar of int
adamc@34 182 | StrProj of str * string
adamc@41 183 | StrFun of string * int * sgn * sgn * str
adamc@44 184 | StrApp of str * str
adamc@31 185 | StrError
adamc@2 186
adamc@2 187 withtype decl = decl' located
adamc@31 188 and str = str' located
adamc@31 189
adamc@2 190 type file = decl list
adamc@2 191
adamc@2 192 end