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Tuples syntactic sugar
author Adam Chlipala <adamc@hcoop.net>
date Sat, 09 Aug 2008 12:50:49 -0400
parents 8e9f97508f0d
children 890a61991263
rev   line source
adamc@25 1 (* Copyright (c) 2008, Adam Chlipala
adamc@25 2 * All rights reserved.
adamc@25 3 *
adamc@25 4 * Redistribution and use in source and binary forms, with or without
adamc@25 5 * modification, are permitted provided that the following conditions are met:
adamc@25 6 *
adamc@25 7 * - Redistributions of source code must retain the above copyright notice,
adamc@25 8 * this list of conditions and the following disclaimer.
adamc@25 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@25 10 * this list of conditions and the following disclaimer in the documentation
adamc@25 11 * and/or other materials provided with the distribution.
adamc@25 12 * - The names of contributors may not be used to endorse or promote products
adamc@25 13 * derived from this software without specific prior written permission.
adamc@25 14 *
adamc@25 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@25 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@25 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@25 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@25 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@25 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@25 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@25 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@25 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@25 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@25 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@25 26 *)
adamc@25 27
adamc@25 28 (* Pretty-printing monomorphic Laconic/Web *)
adamc@25 29
adamc@25 30 structure MonoPrint :> MONO_PRINT = struct
adamc@25 31
adamc@25 32 open Print.PD
adamc@25 33 open Print
adamc@25 34
adamc@25 35 open Mono
adamc@25 36
adamc@25 37 structure E = MonoEnv
adamc@25 38
adamc@25 39 val debug = ref false
adamc@25 40
adamc@25 41 fun p_typ' par env (t, _) =
adamc@25 42 case t of
adamc@25 43 TFun (t1, t2) => parenIf par (box [p_typ' true env t1,
adamc@25 44 space,
adamc@25 45 string "->",
adamc@25 46 space,
adamc@25 47 p_typ env t2])
adamc@25 48 | TRecord xcs => box [string "{",
adamc@25 49 p_list (fn (x, t) =>
adamc@25 50 box [string x,
adamc@25 51 space,
adamc@25 52 string ":",
adamc@25 53 space,
adamc@25 54 p_typ env t]) xcs,
adamc@25 55 string "}"]
adamc@188 56 | TDatatype (_, n, _) =>
adamc@178 57 ((if !debug then
adamc@178 58 string (#1 (E.lookupDatatype env n) ^ "__" ^ Int.toString n)
adamc@178 59 else
adamc@178 60 string (#1 (E.lookupDatatype env n)))
adamc@178 61 handle E.UnboundNamed _ => string ("UNBOUND_DATATYPE_" ^ Int.toString n))
adamc@51 62 | TFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
adamc@25 63
adamc@25 64 and p_typ env = p_typ' false env
adamc@25 65
adamc@109 66 fun p_enamed env n =
adamc@178 67 (if !debug then
adamc@178 68 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@178 69 else
adamc@178 70 string (#1 (E.lookupENamed env n)))
adamc@178 71 handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n)
adamc@178 72
adamc@178 73 fun p_con_named env n =
adamc@178 74 (if !debug then
adamc@178 75 string (#1 (E.lookupConstructor env n) ^ "__" ^ Int.toString n)
adamc@178 76 else
adamc@178 77 string (#1 (E.lookupConstructor env n)))
adamc@178 78 handle E.UnboundNamed _ => string ("CONSTRUCTOR_" ^ Int.toString n)
adamc@178 79
adamc@178 80 fun p_patCon env pc =
adamc@178 81 case pc of
adamc@178 82 PConVar n => p_con_named env n
adamc@186 83 | PConFfi {mod = m, con, ...} => box [string "FFIC(",
adamc@185 84 string m,
adamc@185 85 string ".",
adamc@185 86 string con,
adamc@185 87 string ")"]
adamc@178 88
adamc@178 89 fun p_pat' par env (p, _) =
adamc@178 90 case p of
adamc@178 91 PWild => string "_"
adamc@182 92 | PVar (s, _) => string s
adamc@178 93 | PPrim p => Prim.p_t p
adamc@188 94 | PCon (_, n, NONE) => p_patCon env n
adamc@188 95 | PCon (_, n, SOME p) => parenIf par (box [p_patCon env n,
adamc@178 96 space,
adamc@178 97 p_pat' true env p])
adamc@178 98 | PRecord xps =>
adamc@178 99 box [string "{",
adamc@182 100 p_list_sep (box [string ",", space]) (fn (x, p, _) =>
adamc@178 101 box [string x,
adamc@178 102 space,
adamc@178 103 string "=",
adamc@178 104 space,
adamc@178 105 p_pat env p]) xps,
adamc@178 106 string "}"]
adamc@178 107
adamc@178 108 and p_pat x = p_pat' false x
adamc@109 109
adamc@25 110 fun p_exp' par env (e, _) =
adamc@25 111 case e of
adamc@25 112 EPrim p => Prim.p_t p
adamc@25 113 | ERel n =>
adamc@178 114 ((if !debug then
adamc@178 115 string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
adamc@178 116 else
adamc@178 117 string (#1 (E.lookupERel env n)))
adamc@178 118 handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n))
adamc@109 119 | ENamed n => p_enamed env n
adamc@188 120 | ECon (_, pc, NONE) => p_patCon env pc
adamc@188 121 | ECon (_, pc, SOME e) => parenIf par (box [p_patCon env pc,
adamc@188 122 space,
adamc@188 123 p_exp' true env e])
adamc@109 124
adamc@51 125 | EFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
adamc@51 126 | EFfiApp (m, x, es) => box [string "FFI(",
adamc@51 127 string m,
adamc@51 128 string ".",
adamc@51 129 string x,
adamc@51 130 string "(",
adamc@51 131 p_list (p_exp env) es,
adamc@51 132 string "))"]
adamc@25 133 | EApp (e1, e2) => parenIf par (box [p_exp env e1,
adamc@25 134 space,
adamc@25 135 p_exp' true env e2])
adamc@26 136 | EAbs (x, t, _, e) => parenIf par (box [string "fn",
adamc@26 137 space,
adamc@26 138 string x,
adamc@26 139 space,
adamc@26 140 string ":",
adamc@26 141 space,
adamc@26 142 p_typ env t,
adamc@26 143 space,
adamc@26 144 string "=>",
adamc@26 145 space,
adamc@183 146 p_exp (E.pushERel env x t NONE) e])
adamc@25 147
adamc@25 148 | ERecord xes => box [string "{",
adamc@29 149 p_list (fn (x, e, _) =>
adamc@25 150 box [string x,
adamc@25 151 space,
adamc@25 152 string "=",
adamc@25 153 space,
adamc@25 154 p_exp env e]) xes,
adamc@25 155 string "}"]
adamc@25 156 | EField (e, x) =>
adamc@25 157 box [p_exp' true env e,
adamc@25 158 string ".",
adamc@25 159 string x]
adamc@25 160
adamc@178 161 | ECase (e, pes, _) => parenIf par (box [string "case",
adamc@178 162 space,
adamc@178 163 p_exp env e,
adamc@178 164 space,
adamc@178 165 string "of",
adamc@178 166 space,
adamc@178 167 p_list_sep (box [space, string "|", space])
adamc@178 168 (fn (p, e) => box [p_pat env p,
adamc@178 169 space,
adamc@178 170 string "=>",
adamc@178 171 space,
adamc@179 172 p_exp (E.patBinds env p) e]) pes])
adamc@94 173
adamc@94 174 | EStrcat (e1, e2) => box [p_exp' true env e1,
adamc@94 175 space,
adamc@102 176 string "^",
adamc@94 177 space,
adamc@94 178 p_exp' true env e2]
adamc@94 179
adamc@102 180 | EWrite e => box [string "write(",
adamc@102 181 p_exp env e,
adamc@102 182 string ")"]
adamc@102 183
adamc@106 184 | ESeq (e1, e2) => box [p_exp env e1,
adamc@106 185 string ";",
adamc@106 186 space,
adamc@106 187 p_exp env e2]
adamc@106 188
adamc@111 189 | EClosure (n, es) => box [string "CLOSURE(",
adamc@111 190 p_enamed env n,
adamc@111 191 p_list_sep (string "") (fn e => box [string ", ",
adamc@111 192 p_exp env e]) es,
adamc@111 193 string ")"]
adamc@111 194
adamc@25 195 and p_exp env = p_exp' false env
adamc@25 196
adamc@126 197 fun p_vali env (x, n, t, e, s) =
adamc@126 198 let
adamc@126 199 val xp = if !debug then
adamc@126 200 box [string x,
adamc@126 201 string "__",
adamc@126 202 string (Int.toString n)]
adamc@126 203 else
adamc@126 204 string x
adamc@126 205 in
adamc@126 206 box [xp,
adamc@126 207 space,
adamc@126 208 string "as",
adamc@126 209 space,
adamc@126 210 string s,
adamc@126 211 space,
adamc@126 212 string ":",
adamc@126 213 space,
adamc@126 214 p_typ env t,
adamc@126 215 space,
adamc@126 216 string "=",
adamc@126 217 space,
adamc@126 218 p_exp env e]
adamc@126 219 end
adamc@126 220
adamc@164 221 fun p_datatype env (x, n, cons) =
adamc@164 222 let
adamc@168 223 val env = E.pushDatatype env x n cons
adamc@164 224 in
adamc@164 225 box [string "datatype",
adamc@164 226 space,
adamc@164 227 string x,
adamc@164 228 space,
adamc@164 229 string "=",
adamc@164 230 space,
adamc@164 231 p_list_sep (box [space, string "|", space])
adamc@164 232 (fn (x, n, NONE) => if !debug then (string (x ^ "__" ^ Int.toString n))
adamc@164 233 else string x
adamc@164 234 | (x, _, SOME t) => box [if !debug then (string (x ^ "__" ^ Int.toString n))
adamc@164 235 else string x, space, string "of", space, p_typ env t])
adamc@164 236 cons]
adamc@164 237 end
adamc@164 238
adamc@126 239 fun p_decl env (dAll as (d, _) : decl) =
adamc@25 240 case d of
adamc@164 241 DDatatype x => p_datatype env x
adamc@164 242 | DVal vi => box [string "val",
adamc@126 243 space,
adamc@126 244 p_vali env vi]
adamc@126 245 | DValRec vis =>
adamc@25 246 let
adamc@126 247 val env = E.declBinds env dAll
adamc@25 248 in
adamc@25 249 box [string "val",
adamc@25 250 space,
adamc@126 251 string "rec",
adamc@25 252 space,
adamc@126 253 p_list_sep (box [newline, string "and", space]) (p_vali env) vis]
adamc@25 254 end
adamc@109 255
adamc@144 256 | DExport (ek, s, n, ts) => box [string "export",
adamc@144 257 space,
adamc@144 258 CorePrint.p_export_kind ek,
adamc@144 259 space,
adamc@144 260 p_enamed env n,
adamc@144 261 space,
adamc@144 262 string "as",
adamc@144 263 space,
adamc@144 264 string s,
adamc@144 265 p_list_sep (string "") (fn t => box [space,
adamc@144 266 string "(",
adamc@144 267 p_typ env t,
adamc@144 268 string ")"]) ts]
adamc@100 269
adamc@25 270 fun p_file env file =
adamc@25 271 let
adamc@31 272 val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 273 (p_decl env d,
adamc@31 274 E.declBinds env d))
adamc@25 275 env file
adamc@25 276 in
adamc@25 277 p_list_sep newline (fn x => x) pds
adamc@25 278 end
adamc@25 279
adamc@25 280 end