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annotate src/elab.sml @ 340:5ccb1c6412e4

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Push writes inside lets
author Adam Chlipala <adamc@hcoop.net>
date Sun, 14 Sep 2008 15:20:53 -0400
parents 075b36dbb1a4
children b85e6ba56618
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@2 43 withtype kind = kind' located
adamc@2 44
adamc@2 45 datatype explicitness =
adamc@2 46 Explicit
adamc@2 47 | Implicit
adamc@2 48
adamc@334 49 datatype auto_instantiate =
adamc@334 50 Instantiate
adamc@334 51 | LeaveAlone
adamc@334 52
adamc@2 53 datatype con' =
adamc@2 54 TFun of con * con
adamc@2 55 | TCFun of explicitness * string * kind * con
adamc@334 56 | TDisjoint of auto_instantiate * con * con * con
adamc@2 57 | TRecord of con
adamc@2 58
adamc@2 59 | CRel of int
adamc@2 60 | CNamed of int
adamc@34 61 | CModProj of int * string list * string
adamc@2 62 | CApp of con * con
adamc@8 63 | CAbs of string * kind * con
adamc@84 64 | CDisjoint of con * con * con
adamc@2 65
adamc@2 66 | CName of string
adamc@2 67
adamc@2 68 | CRecord of kind * (con * con) list
adamc@2 69 | CConcat of con * con
adamc@67 70 | CFold of kind * kind
adamc@2 71
adamc@82 72 | CUnit
adamc@82 73
adamc@207 74 | CTuple of con list
adamc@207 75 | CProj of con * int
adamc@207 76
adamc@2 77 | CError
adamc@76 78 | CUnif of ErrorMsg.span * kind * string * con option ref
adamc@2 79
adamc@2 80 withtype con = con' located
adamc@2 81
adamc@188 82 datatype datatype_kind =
adamc@188 83 Enum
adamc@198 84 | Option
adamc@188 85 | Default
adamc@188 86
adamc@171 87 datatype patCon =
adamc@171 88 PConVar of int
adamc@171 89 | PConProj of int * string list * string
adamc@171 90
adamc@171 91 datatype pat' =
adamc@171 92 PWild
adamc@182 93 | PVar of string * con
adamc@173 94 | PPrim of Prim.t
adamc@191 95 | PCon of datatype_kind * patCon * con list * pat option
adamc@182 96 | PRecord of (string * pat * con) list
adamc@171 97
adamc@171 98 withtype pat = pat' located
adamc@171 99
adamc@9 100 datatype exp' =
adamc@14 101 EPrim of Prim.t
adamc@14 102 | ERel of int
adamc@9 103 | ENamed of int
adamc@34 104 | EModProj of int * string list * string
adamc@9 105 | EApp of exp * exp
adamc@26 106 | EAbs of string * con * con * exp
adamc@9 107 | ECApp of exp * con
adamc@9 108 | ECAbs of explicitness * string * kind * exp
adamc@9 109
adamc@29 110 | ERecord of (con * exp * con) list
adamc@12 111 | EField of exp * con * { field : con, rest : con }
adamc@339 112 | EWith of exp * con * exp * { field : con, rest : con }
adamc@149 113 | ECut of exp * con * { field : con, rest : con }
adamc@71 114 | EFold of kind
adamc@12 115
adamc@182 116 | ECase of exp * (pat * exp) list * { disc : con, result : con }
adamc@171 117
adamc@9 118 | EError
adamc@228 119 | EUnif of exp option ref
adamc@9 120
adamc@9 121 withtype exp = exp' located
adamc@9 122
adamc@31 123 datatype sgn_item' =
adamc@31 124 SgiConAbs of string * int * kind
adamc@31 125 | SgiCon of string * int * kind * con
adamc@191 126 | SgiDatatype of string * int * string list * (string * int * con option) list
adamc@191 127 | SgiDatatypeImp of string * int * int * string list * string * string list * (string * int * con option) list
adamc@31 128 | SgiVal of string * int * con
adamc@31 129 | SgiStr of string * int * sgn
adamc@59 130 | SgiSgn of string * int * sgn
adamc@88 131 | SgiConstraint of con * con
adamc@205 132 | SgiTable of int * string * int * con
adamc@338 133 | SgiSequence of int * string * int
adamc@211 134 | SgiClassAbs of string * int
adamc@211 135 | SgiClass of string * int * con
adamc@31 136
adamc@31 137 and sgn' =
adamc@31 138 SgnConst of sgn_item list
adamc@31 139 | SgnVar of int
adamc@41 140 | SgnFun of string * int * sgn * sgn
adamc@42 141 | SgnWhere of sgn * string * con
adamc@59 142 | SgnProj of int * string list * string
adamc@31 143 | SgnError
adamc@31 144
adamc@31 145 withtype sgn_item = sgn_item' located
adamc@31 146 and sgn = sgn' located
adamc@31 147
adamc@2 148 datatype decl' =
adamc@5 149 DCon of string * int * kind * con
adamc@191 150 | DDatatype of string * int * string list * (string * int * con option) list
adamc@191 151 | DDatatypeImp of string * int * int * string list * string * string list * (string * int * con option) list
adamc@9 152 | DVal of string * int * con * exp
adamc@123 153 | DValRec of (string * int * con * exp) list
adamc@31 154 | DSgn of string * int * sgn
adamc@31 155 | DStr of string * int * sgn * str
adamc@48 156 | DFfiStr of string * int * sgn
adamc@88 157 | DConstraint of con * con
adamc@109 158 | DExport of int * sgn * str
adamc@205 159 | DTable of int * string * int * con
adamc@338 160 | DSequence of int * string * int
adamc@213 161 | DClass of string * int * con
adamc@271 162 | DDatabase of string
adamc@31 163
adamc@31 164 and str' =
adamc@31 165 StrConst of decl list
adamc@31 166 | StrVar of int
adamc@34 167 | StrProj of str * string
adamc@41 168 | StrFun of string * int * sgn * sgn * str
adamc@44 169 | StrApp of str * str
adamc@31 170 | StrError
adamc@2 171
adamc@2 172 withtype decl = decl' located
adamc@31 173 and str = str' located
adamc@31 174
adamc@2 175 type file = decl list
adamc@2 176
adamc@2 177 end