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annotate src/mono_print.sml @ 328:58f1260f293f

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Fixed a mind-numbing De Bruijn bug
author Adam Chlipala <adamc@hcoop.net>
date Thu, 11 Sep 2008 19:59:31 -0400
parents 52d4c60518d4
children 41458a694575
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@244 28 (* Pretty-printing monomorphic Ur/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@252 41 val dummyt = (TRecord [], ErrorMsg.dummySpan)
adamc@252 42
adamc@25 43 fun p_typ' par env (t, _) =
adamc@25 44 case t of
adamc@25 45 TFun (t1, t2) => parenIf par (box [p_typ' true env t1,
adamc@25 46 space,
adamc@25 47 string "->",
adamc@25 48 space,
adamc@25 49 p_typ env t2])
adamc@25 50 | TRecord xcs => box [string "{",
adamc@25 51 p_list (fn (x, t) =>
adamc@25 52 box [string x,
adamc@25 53 space,
adamc@25 54 string ":",
adamc@25 55 space,
adamc@25 56 p_typ env t]) xcs,
adamc@25 57 string "}"]
adamc@196 58 | TDatatype (n, _) =>
adamc@178 59 ((if !debug then
adamc@178 60 string (#1 (E.lookupDatatype env n) ^ "__" ^ Int.toString n)
adamc@178 61 else
adamc@178 62 string (#1 (E.lookupDatatype env n)))
adamc@178 63 handle E.UnboundNamed _ => string ("UNBOUND_DATATYPE_" ^ Int.toString n))
adamc@51 64 | TFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
adamc@292 65 | TOption t => box [string "option(",
adamc@292 66 p_typ env t,
adamc@292 67 string ")"]
adamc@25 68
adamc@25 69 and p_typ env = p_typ' false env
adamc@25 70
adamc@109 71 fun p_enamed env n =
adamc@178 72 (if !debug then
adamc@178 73 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@178 74 else
adamc@178 75 string (#1 (E.lookupENamed env n)))
adamc@178 76 handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n)
adamc@178 77
adamc@178 78 fun p_con_named env n =
adamc@178 79 (if !debug then
adamc@178 80 string (#1 (E.lookupConstructor env n) ^ "__" ^ Int.toString n)
adamc@178 81 else
adamc@178 82 string (#1 (E.lookupConstructor env n)))
adamc@178 83 handle E.UnboundNamed _ => string ("CONSTRUCTOR_" ^ Int.toString n)
adamc@178 84
adamc@178 85 fun p_patCon env pc =
adamc@178 86 case pc of
adamc@178 87 PConVar n => p_con_named env n
adamc@186 88 | PConFfi {mod = m, con, ...} => box [string "FFIC(",
adamc@185 89 string m,
adamc@185 90 string ".",
adamc@185 91 string con,
adamc@185 92 string ")"]
adamc@178 93
adamc@178 94 fun p_pat' par env (p, _) =
adamc@178 95 case p of
adamc@178 96 PWild => string "_"
adamc@182 97 | PVar (s, _) => string s
adamc@178 98 | PPrim p => Prim.p_t p
adamc@188 99 | PCon (_, n, NONE) => p_patCon env n
adamc@188 100 | PCon (_, n, SOME p) => parenIf par (box [p_patCon env n,
adamc@288 101 space,
adamc@288 102 p_pat' true env p])
adamc@178 103 | PRecord xps =>
adamc@178 104 box [string "{",
adamc@182 105 p_list_sep (box [string ",", space]) (fn (x, p, _) =>
adamc@178 106 box [string x,
adamc@178 107 space,
adamc@178 108 string "=",
adamc@178 109 space,
adamc@178 110 p_pat env p]) xps,
adamc@178 111 string "}"]
adamc@288 112 | PNone _ => string "None"
adamc@288 113 | PSome (_, p) => box [string "Some",
adamc@288 114 space,
adamc@288 115 p_pat' true env p]
adamc@178 116
adamc@178 117 and p_pat x = p_pat' false x
adamc@109 118
adamc@25 119 fun p_exp' par env (e, _) =
adamc@25 120 case e of
adamc@25 121 EPrim p => Prim.p_t p
adamc@25 122 | ERel n =>
adamc@178 123 ((if !debug then
adamc@178 124 string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
adamc@178 125 else
adamc@178 126 string (#1 (E.lookupERel env n)))
adamc@178 127 handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n))
adamc@109 128 | ENamed n => p_enamed env n
adamc@188 129 | ECon (_, pc, NONE) => p_patCon env pc
adamc@188 130 | ECon (_, pc, SOME e) => parenIf par (box [p_patCon env pc,
adamc@188 131 space,
adamc@188 132 p_exp' true env e])
adamc@297 133 | ENone _ => string "None"
adamc@290 134 | ESome (_, e) => parenIf par (box [string "Some",
adamc@290 135 space,
adamc@290 136 p_exp' true env e])
adamc@109 137
adamc@51 138 | EFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
adamc@51 139 | EFfiApp (m, x, es) => box [string "FFI(",
adamc@51 140 string m,
adamc@51 141 string ".",
adamc@51 142 string x,
adamc@51 143 string "(",
adamc@51 144 p_list (p_exp env) es,
adamc@51 145 string "))"]
adamc@25 146 | EApp (e1, e2) => parenIf par (box [p_exp env e1,
adamc@25 147 space,
adamc@25 148 p_exp' true env e2])
adamc@252 149 | EAbs (x, t, _, e) => parenIf true (box [string "fn",
adamc@252 150 space,
adamc@252 151 string x,
adamc@252 152 space,
adamc@252 153 string ":",
adamc@252 154 space,
adamc@252 155 p_typ env t,
adamc@252 156 space,
adamc@252 157 string "=>",
adamc@252 158 space,
adamc@252 159 p_exp (E.pushERel env x t NONE) e])
adamc@25 160
adamc@25 161 | ERecord xes => box [string "{",
adamc@29 162 p_list (fn (x, e, _) =>
adamc@25 163 box [string x,
adamc@25 164 space,
adamc@25 165 string "=",
adamc@25 166 space,
adamc@25 167 p_exp env e]) xes,
adamc@25 168 string "}"]
adamc@25 169 | EField (e, x) =>
adamc@25 170 box [p_exp' true env e,
adamc@25 171 string ".",
adamc@25 172 string x]
adamc@25 173
adamc@252 174 | ECase (e, pes, _) => parenIf true (box [string "case",
adamc@252 175 space,
adamc@252 176 p_exp env e,
adamc@252 177 space,
adamc@252 178 string "of",
adamc@252 179 space,
adamc@252 180 p_list_sep (box [space, string "|", space])
adamc@252 181 (fn (p, e) => box [p_pat env p,
adamc@252 182 space,
adamc@252 183 string "=>",
adamc@252 184 space,
adamc@252 185 p_exp (E.patBinds env p) e]) pes])
adamc@94 186
adamc@283 187 | EError (e, t) => box [string "(error",
adamc@283 188 space,
adamc@283 189 p_exp env e,
adamc@283 190 space,
adamc@283 191 string ":",
adamc@283 192 space,
adamc@283 193 p_typ env t,
adamc@283 194 string ")"]
adamc@283 195
adamc@94 196 | EStrcat (e1, e2) => box [p_exp' true env e1,
adamc@94 197 space,
adamc@102 198 string "^",
adamc@94 199 space,
adamc@94 200 p_exp' true env e2]
adamc@94 201
adamc@102 202 | EWrite e => box [string "write(",
adamc@102 203 p_exp env e,
adamc@102 204 string ")"]
adamc@102 205
adamc@106 206 | ESeq (e1, e2) => box [p_exp env e1,
adamc@106 207 string ";",
adamc@106 208 space,
adamc@106 209 p_exp env e2]
adamc@252 210 | ELet (x, t, e1, e2) => box [string "(let",
adamc@251 211 space,
adamc@251 212 string x,
adamc@251 213 space,
adamc@251 214 string ":",
adamc@251 215 space,
adamc@251 216 p_typ env t,
adamc@251 217 space,
adamc@251 218 string "=",
adamc@251 219 space,
adamc@252 220 string "(",
adamc@251 221 p_exp env e1,
adamc@252 222 string ")",
adamc@251 223 space,
adamc@251 224 string "in",
adamc@251 225 space,
adamc@252 226 string "(",
adamc@252 227 p_exp (E.pushERel env x t NONE) e2,
adamc@252 228 string "))"]
adamc@106 229
adamc@111 230 | EClosure (n, es) => box [string "CLOSURE(",
adamc@111 231 p_enamed env n,
adamc@111 232 p_list_sep (string "") (fn e => box [string ", ",
adamc@111 233 p_exp env e]) es,
adamc@111 234 string ")"]
adamc@111 235
adamc@252 236 | EQuery {exps, tables, state, query, body, initial} =>
adamc@252 237 box [string "query[",
adamc@252 238 p_list (fn (x, t) => box [string x, space, string ":", space, p_typ env t]) exps,
adamc@252 239 string "] [",
adamc@252 240 p_list (fn (x, xts) => box [string x,
adamc@252 241 space,
adamc@252 242 string ":",
adamc@252 243 space,
adamc@252 244 string "{",
adamc@252 245 p_list (fn (x, t) => box [string x, space, string ":", space, p_typ env t]) xts,
adamc@252 246 string "}"]) tables,
adamc@252 247 string "] [",
adamc@252 248 p_typ env state,
adamc@252 249 string "]",
adamc@252 250 space,
adamc@252 251 p_exp env query,
adamc@252 252 space,
adamc@252 253 string "initial",
adamc@252 254 space,
adamc@252 255 p_exp env initial,
adamc@252 256 space,
adamc@252 257 string "in",
adamc@252 258 space,
adamc@252 259 p_exp (E.pushERel (E.pushERel env "r" dummyt NONE) "acc" dummyt NONE) body]
adamc@307 260 | EDml e => box [string "dml(",
adamc@307 261 p_exp env e,
adamc@307 262 string ")"]
adamc@252 263
adamc@25 264 and p_exp env = p_exp' false env
adamc@25 265
adamc@126 266 fun p_vali env (x, n, t, e, s) =
adamc@126 267 let
adamc@126 268 val xp = if !debug then
adamc@126 269 box [string x,
adamc@126 270 string "__",
adamc@126 271 string (Int.toString n)]
adamc@126 272 else
adamc@126 273 string x
adamc@126 274 in
adamc@126 275 box [xp,
adamc@126 276 space,
adamc@126 277 string "as",
adamc@126 278 space,
adamc@126 279 string s,
adamc@126 280 space,
adamc@126 281 string ":",
adamc@126 282 space,
adamc@126 283 p_typ env t,
adamc@126 284 space,
adamc@126 285 string "=",
adamc@126 286 space,
adamc@126 287 p_exp env e]
adamc@126 288 end
adamc@126 289
adamc@164 290 fun p_datatype env (x, n, cons) =
adamc@164 291 let
adamc@168 292 val env = E.pushDatatype env x n cons
adamc@164 293 in
adamc@164 294 box [string "datatype",
adamc@164 295 space,
adamc@164 296 string x,
adamc@164 297 space,
adamc@164 298 string "=",
adamc@164 299 space,
adamc@164 300 p_list_sep (box [space, string "|", space])
adamc@164 301 (fn (x, n, NONE) => if !debug then (string (x ^ "__" ^ Int.toString n))
adamc@164 302 else string x
adamc@164 303 | (x, _, SOME t) => box [if !debug then (string (x ^ "__" ^ Int.toString n))
adamc@164 304 else string x, space, string "of", space, p_typ env t])
adamc@164 305 cons]
adamc@164 306 end
adamc@164 307
adamc@126 308 fun p_decl env (dAll as (d, _) : decl) =
adamc@25 309 case d of
adamc@164 310 DDatatype x => p_datatype env x
adamc@164 311 | DVal vi => box [string "val",
adamc@126 312 space,
adamc@126 313 p_vali env vi]
adamc@126 314 | DValRec vis =>
adamc@25 315 let
adamc@126 316 val env = E.declBinds env dAll
adamc@25 317 in
adamc@25 318 box [string "val",
adamc@25 319 space,
adamc@126 320 string "rec",
adamc@25 321 space,
adamc@126 322 p_list_sep (box [newline, string "and", space]) (p_vali env) vis]
adamc@25 323 end
adamc@109 324
adamc@144 325 | DExport (ek, s, n, ts) => box [string "export",
adamc@144 326 space,
adamc@144 327 CorePrint.p_export_kind ek,
adamc@144 328 space,
adamc@144 329 p_enamed env n,
adamc@144 330 space,
adamc@144 331 string "as",
adamc@144 332 space,
adamc@144 333 string s,
adamc@144 334 p_list_sep (string "") (fn t => box [space,
adamc@144 335 string "(",
adamc@144 336 p_typ env t,
adamc@144 337 string ")"]) ts]
adamc@271 338
adamc@273 339 | DTable (s, xts) => box [string "(* SQL table ",
adamc@273 340 string s,
adamc@273 341 space,
adamc@273 342 string ":",
adamc@273 343 space,
adamc@273 344 p_list (fn (x, t) => box [string x,
adamc@273 345 space,
adamc@273 346 string ":",
adamc@273 347 space,
adamc@273 348 p_typ env t]) xts,
adamc@273 349 space,
adamc@273 350 string "*)"]
adamc@271 351 | DDatabase s => box [string "database",
adamc@271 352 space,
adamc@271 353 string s]
adamc@100 354
adamc@25 355 fun p_file env file =
adamc@25 356 let
adamc@31 357 val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 358 (p_decl env d,
adamc@31 359 E.declBinds env d))
adamc@25 360 env file
adamc@25 361 in
adamc@25 362 p_list_sep newline (fn x => x) pds
adamc@25 363 end
adamc@25 364
adamc@25 365 end