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annotate src/mono_opt.sml @ 732:5819fb63c93a

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Effectness analysis
author Adam Chlipala <adamc@hcoop.net>
date Thu, 16 Apr 2009 15:29:39 -0400
parents 9864b64b1700
children f7e2026dd5ae
rev   line source
adamc@96 1 (* Copyright (c) 2008, Adam Chlipala
adamc@96 2 * All rights reserved.
adamc@96 3 *
adamc@96 4 * Redistribution and use in source and binary forms, with or without
adamc@96 5 * modification, are permitted provided that the following conditions are met:
adamc@96 6 *
adamc@96 7 * - Redistributions of source code must retain the above copyright notice,
adamc@96 8 * this list of conditions and the following disclaimer.
adamc@96 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@96 10 * this list of conditions and the following disclaimer in the documentation
adamc@96 11 * and/or other materials provided with the distribution.
adamc@96 12 * - The names of contributors may not be used to endorse or promote products
adamc@96 13 * derived from this software without specific prior written permission.
adamc@96 14 *
adamc@96 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@96 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@96 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@96 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@96 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@96 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@96 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@96 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@96 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@96 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@96 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@96 26 *)
adamc@96 27
adamc@96 28 structure MonoOpt :> MONO_OPT = struct
adamc@96 29
adamc@96 30 open Mono
adamc@96 31 structure U = MonoUtil
adamc@96 32
adamc@717 33 val bless = ref (fn _ : string => true)
adamc@717 34
adamc@96 35 fun typ t = t
adamc@96 36 fun decl d = d
adamc@96 37
adamc@107 38 fun attrifyInt n =
adamc@107 39 if n < 0 then
adamc@107 40 "-" ^ Int64.toString (Int64.~ n)
adamc@107 41 else
adamc@107 42 Int64.toString n
adamc@107 43
adamc@107 44 fun attrifyFloat n =
adamc@107 45 if n < 0.0 then
adamc@107 46 "-" ^ Real.toString (Real.~ n)
adamc@107 47 else
adamc@107 48 Real.toString n
adamc@107 49
adamc@107 50 val attrifyString = String.translate (fn #"\"" => "&quot;"
adamc@135 51 | #"&" => "&amp;"
adamc@107 52 | ch => if Char.isPrint ch then
adamc@107 53 str ch
adamc@107 54 else
adamc@107 55 "&#" ^ Int.toString (ord ch) ^ ";")
adamc@107 56
adamc@120 57 val urlifyInt = attrifyInt
adamc@120 58 val urlifyFloat = attrifyFloat
adamc@120 59
adamc@286 60 val htmlifyInt = attrifyInt
adamc@286 61 val htmlifyFloat = attrifyFloat
adamc@135 62 val htmlifyString = String.translate (fn ch => case ch of
adamc@135 63 #"<" => "&lt;"
adamc@135 64 | #"&" => "&amp;"
adamc@135 65 | _ =>
adamc@135 66 if Char.isPrint ch orelse Char.isSpace ch then
adamc@135 67 str ch
adamc@135 68 else
adamc@135 69 "&#" ^ Int.toString (ord ch) ^ ";")
adamc@135 70
adamc@120 71 fun hexIt ch =
adamc@120 72 let
adamc@120 73 val s = Int.fmt StringCvt.HEX (ord ch)
adamc@120 74 in
adamc@120 75 case size s of
adamc@120 76 0 => "00"
adamc@120 77 | 1 => "0" ^ s
adamc@120 78 | _ => s
adamc@120 79 end
adamc@120 80
adamc@120 81 val urlifyString = String.translate (fn #" " => "+"
adamc@120 82 | ch => if Char.isAlphaNum ch then
adamc@120 83 str ch
adamc@120 84 else
adamc@120 85 "%" ^ hexIt ch)
adamc@253 86
adamc@253 87
adamc@281 88 fun sqlifyInt n = attrifyInt n ^ "::int8"
adamc@281 89 fun sqlifyFloat n = attrifyFloat n ^ "::float8"
adamc@253 90
adamc@259 91 fun sqlifyString s = "E'" ^ String.translate (fn #"'" => "\\'"
adamc@714 92 | #"\\" => "\\\\"
adamc@714 93 | ch =>
adamc@714 94 if Char.isPrint ch then
adamc@714 95 str ch
adamc@714 96 else
adamc@714 97 "\\" ^ StringCvt.padLeft #"0" 3
adamc@714 98 (Int.fmt StringCvt.OCT (ord ch)))
adamc@281 99 (String.toString s) ^ "'::text"
adamc@453 100
adamc@96 101 fun exp e =
adamc@96 102 case e of
adamc@96 103 EPrim (Prim.String s) =>
adamc@96 104 let
adamc@96 105 val (_, chs) =
adamc@96 106 CharVector.foldl (fn (ch, (lastSpace, chs)) =>
adamc@96 107 let
adamc@96 108 val isSpace = Char.isSpace ch
adamc@96 109 in
adamc@96 110 if isSpace andalso lastSpace then
adamc@96 111 (true, chs)
adamc@96 112 else
adamc@96 113 (isSpace, ch :: chs)
adamc@96 114 end)
adamc@96 115 (false, []) s
adamc@96 116 in
adamc@96 117 EPrim (Prim.String (String.implode (rev chs)))
adamc@96 118 end
adamc@96 119
adamc@96 120 | EStrcat ((EPrim (Prim.String s1), loc), (EPrim (Prim.String s2), _)) =>
adamc@96 121 let
adamc@96 122 val s =
adamc@96 123 if size s1 > 0 andalso size s2 > 0
adamc@96 124 andalso Char.isSpace (String.sub (s1, size s1 - 1))
adamc@96 125 andalso Char.isSpace (String.sub (s2, 0)) then
adamc@96 126 s1 ^ String.extract (s2, 1, NONE)
adamc@96 127 else
adamc@96 128 s1 ^ s2
adamc@96 129 in
adamc@96 130 EPrim (Prim.String s)
adamc@96 131 end
adamc@105 132
adamc@105 133 | EStrcat ((EPrim (Prim.String s1), loc), (EStrcat ((EPrim (Prim.String s2), _), rest), _)) =>
adamc@105 134 let
adamc@105 135 val s =
adamc@105 136 if size s1 > 0 andalso size s2 > 0
adamc@105 137 andalso Char.isSpace (String.sub (s1, size s1 - 1))
adamc@105 138 andalso Char.isSpace (String.sub (s2, 0)) then
adamc@105 139 s1 ^ String.extract (s2, 1, NONE)
adamc@105 140 else
adamc@105 141 s1 ^ s2
adamc@105 142 in
adamc@105 143 EStrcat ((EPrim (Prim.String s), loc), rest)
adamc@105 144 end
adamc@105 145
adamc@105 146 | EStrcat ((EStrcat (e1, e2), loc), e3) =>
adamc@105 147 optExp (EStrcat (e1, (EStrcat (e2, e3), loc)), loc)
adamc@105 148
adamc@106 149 | EWrite (EStrcat (e1, e2), loc) =>
adamc@106 150 ESeq ((optExp (EWrite e1, loc), loc),
adamc@106 151 (optExp (EWrite e2, loc), loc))
adamc@106 152
adamc@183 153 | ESeq ((EWrite (EPrim (Prim.String s1), _), loc),
adamc@183 154 (EWrite (EPrim (Prim.String s2), _), _)) =>
adamc@183 155 EWrite (EPrim (Prim.String (s1 ^ s2)), loc)
adamc@196 156 | ESeq ((EWrite (EPrim (Prim.String s1), _), loc),
adamc@196 157 (ESeq ((EWrite (EPrim (Prim.String s2), _), _),
adamc@196 158 e), _)) =>
adamc@196 159 ESeq ((EWrite (EPrim (Prim.String (s1 ^ s2)), loc), loc),
adamc@196 160 e)
adamc@183 161
adamc@286 162 | EFfiApp ("Basis", "htmlifyString", [(EFfiApp ("Basis", "intToString", [(EPrim (Prim.Int n), _)]), _)]) =>
adamc@286 163 EPrim (Prim.String (htmlifyInt n))
adamc@286 164 | EFfiApp ("Basis", "htmlifyString", [(EFfiApp ("Basis", "intToString", es), _)]) =>
adamc@286 165 EFfiApp ("Basis", "htmlifyInt", es)
adamc@320 166 | EFfiApp ("Basis", "htmlifyString", [(EApp ((EFfi ("Basis", "intToString"), _),
adamc@320 167 (EPrim (Prim.Int n), _)), _)]) =>
adamc@320 168 EPrim (Prim.String (htmlifyInt n))
adamc@320 169 | EFfiApp ("Basis", "htmlifyString", [(EApp ((EFfi ("Basis", "intToString"), _),
adamc@320 170 e), _)]) =>
adamc@320 171 EFfiApp ("Basis", "htmlifyInt", [e])
adamc@286 172 | EWrite (EFfiApp ("Basis", "htmlifyInt", [e]), _) =>
adamc@286 173 EFfiApp ("Basis", "htmlifyInt_w", [e])
adamc@286 174
adamc@286 175 | EFfiApp ("Basis", "htmlifyString", [(EFfiApp ("Basis", "floatToString", [(EPrim (Prim.Float n), _)]), _)]) =>
adamc@286 176 EPrim (Prim.String (htmlifyFloat n))
adamc@286 177 | EFfiApp ("Basis", "htmlifyString", [(EFfiApp ("Basis", "floatToString", es), _)]) =>
adamc@286 178 EFfiApp ("Basis", "htmlifyFloat", es)
adamc@320 179 | EFfiApp ("Basis", "htmlifyString", [(EApp ((EFfi ("Basis", "floatToString"), _),
adamc@320 180 (EPrim (Prim.Float n), _)), _)]) =>
adamc@320 181 EPrim (Prim.String (htmlifyFloat n))
adamc@320 182 | EFfiApp ("Basis", "htmlifyString", [(EApp ((EFfi ("Basis", "floatToString"), _),
adamc@320 183 e), _)]) =>
adamc@320 184 EFfiApp ("Basis", "htmlifyFloat", [e])
adamc@286 185 | EWrite (EFfiApp ("Basis", "htmlifyFloat", [e]), _) =>
adamc@286 186 EFfiApp ("Basis", "htmlifyFloat_w", [e])
adamc@286 187
adamc@286 188 | EFfiApp ("Basis", "htmlifyString", [(EFfiApp ("Basis", "boolToString",
adamc@286 189 [(ECon (Enum, PConFfi {con = "True", ...}, NONE), _)]), _)]) =>
adamc@286 190 EPrim (Prim.String "True")
adamc@286 191 | EFfiApp ("Basis", "htmlifyString", [(EFfiApp ("Basis", "boolToString",
adamc@286 192 [(ECon (Enum, PConFfi {con = "False", ...}, NONE), _)]), _)]) =>
adamc@286 193 EPrim (Prim.String "False")
adamc@286 194 | EFfiApp ("Basis", "htmlifyString", [(EFfiApp ("Basis", "boolToString", es), _)]) =>
adamc@286 195 EFfiApp ("Basis", "htmlifyBool", es)
adamc@320 196 | EFfiApp ("Basis", "htmlifyString", [(EApp ((EFfi ("Basis", "boolToString"), _),
adamc@320 197 (ECon (Enum, PConFfi {con = "True", ...}, NONE), _)), _)]) =>
adamc@320 198 EPrim (Prim.String "True")
adamc@320 199 | EFfiApp ("Basis", "htmlifyString", [(EApp ((EFfi ("Basis", "boolToString"), _),
adamc@320 200 (ECon (Enum, PConFfi {con = "False", ...}, NONE), _)), _)]) =>
adamc@320 201 EPrim (Prim.String "False")
adamc@320 202 | EFfiApp ("Basis", "htmlifyString", [(EApp ((EFfi ("Basis", "boolToString"), _),
adamc@320 203 e), _)]) =>
adamc@320 204 EFfiApp ("Basis", "htmlifyBool", [e])
adamc@286 205 | EWrite (EFfiApp ("Basis", "htmlifyBool", [e]), _) =>
adamc@286 206 EFfiApp ("Basis", "htmlifyBool_w", [e])
adamc@286 207
adamc@436 208 | EFfiApp ("Basis", "htmlifyString", [(EApp ((EFfi ("Basis", "timeToString"), _), e), _)]) =>
adamc@436 209 EFfiApp ("Basis", "htmlifyTime", [e])
adamc@436 210 | EFfiApp ("Basis", "htmlifyString_w", [(EApp ((EFfi ("Basis", "timeToString"), _), e), _)]) =>
adamc@436 211 EFfiApp ("Basis", "htmlifyTime_w", [e])
adamc@436 212 | EWrite (EFfiApp ("Basis", "htmlifyTime", [e]), _) =>
adamc@436 213 EFfiApp ("Basis", "htmlifyTime_w", [e])
adamc@436 214
adamc@135 215 | EFfiApp ("Basis", "htmlifyString", [(EPrim (Prim.String s), _)]) =>
adamc@135 216 EPrim (Prim.String (htmlifyString s))
adamc@135 217 | EWrite (EFfiApp ("Basis", "htmlifyString", [(EPrim (Prim.String s), _)]), loc) =>
adamc@135 218 EWrite (EPrim (Prim.String (htmlifyString s)), loc)
adamc@135 219 | EWrite (EFfiApp ("Basis", "htmlifyString", [e]), _) =>
adamc@135 220 EFfiApp ("Basis", "htmlifyString_w", [e])
adamc@196 221 | EFfiApp ("Basis", "htmlifyString_w", [(EPrim (Prim.String s), loc)]) =>
adamc@196 222 EWrite (EPrim (Prim.String (htmlifyString s)), loc)
adamc@135 223
adamc@107 224 | EFfiApp ("Basis", "attrifyInt", [(EPrim (Prim.Int n), _)]) =>
adamc@107 225 EPrim (Prim.String (attrifyInt n))
adamc@107 226 | EWrite (EFfiApp ("Basis", "attrifyInt", [(EPrim (Prim.Int n), _)]), loc) =>
adamc@107 227 EWrite (EPrim (Prim.String (attrifyInt n)), loc)
adamc@106 228 | EWrite (EFfiApp ("Basis", "attrifyInt", [e]), _) =>
adamc@106 229 EFfiApp ("Basis", "attrifyInt_w", [e])
adamc@107 230
adamc@107 231 | EFfiApp ("Basis", "attrifyFloat", [(EPrim (Prim.Float n), _)]) =>
adamc@107 232 EPrim (Prim.String (attrifyFloat n))
adamc@107 233 | EWrite (EFfiApp ("Basis", "attrifyFloat", [(EPrim (Prim.Float n), _)]), loc) =>
adamc@107 234 EWrite (EPrim (Prim.String (attrifyFloat n)), loc)
adamc@106 235 | EWrite (EFfiApp ("Basis", "attrifyFloat", [e]), _) =>
adamc@106 236 EFfiApp ("Basis", "attrifyFloat_w", [e])
adamc@107 237
adamc@107 238 | EFfiApp ("Basis", "attrifyString", [(EPrim (Prim.String s), _)]) =>
adamc@107 239 EPrim (Prim.String (attrifyString s))
adamc@107 240 | EWrite (EFfiApp ("Basis", "attrifyString", [(EPrim (Prim.String s), _)]), loc) =>
adamc@107 241 EWrite (EPrim (Prim.String (attrifyString s)), loc)
adamc@106 242 | EWrite (EFfiApp ("Basis", "attrifyString", [e]), _) =>
adamc@106 243 EFfiApp ("Basis", "attrifyString_w", [e])
adamc@106 244
adamc@721 245 | EFfiApp ("Basis", "attrifyCss_class", [(EPrim (Prim.String s), _)]) =>
adamc@721 246 EPrim (Prim.String s)
adamc@721 247 | EWrite (EFfiApp ("Basis", "attrifyCss_class", [(EPrim (Prim.String s), _)]), loc) =>
adamc@721 248 EWrite (EPrim (Prim.String s), loc)
adamc@721 249 | EWrite (EFfiApp ("Basis", "attrifyCss_class", [e]), _) =>
adamc@721 250 EFfiApp ("Basis", "attrifyString_w", [e])
adamc@721 251
adamc@120 252 | EFfiApp ("Basis", "urlifyInt", [(EPrim (Prim.Int n), _)]) =>
adamc@120 253 EPrim (Prim.String (urlifyInt n))
adamc@120 254 | EWrite (EFfiApp ("Basis", "urlifyInt", [(EPrim (Prim.Int n), _)]), loc) =>
adamc@120 255 EWrite (EPrim (Prim.String (urlifyInt n)), loc)
adamc@120 256 | EWrite (EFfiApp ("Basis", "urlifyInt", [e]), _) =>
adamc@120 257 EFfiApp ("Basis", "urlifyInt_w", [e])
adamc@120 258
adamc@120 259 | EFfiApp ("Basis", "urlifyFloat", [(EPrim (Prim.Float n), _)]) =>
adamc@120 260 EPrim (Prim.String (urlifyFloat n))
adamc@120 261 | EWrite (EFfiApp ("Basis", "urlifyFloat", [(EPrim (Prim.Float n), _)]), loc) =>
adamc@120 262 EWrite (EPrim (Prim.String (urlifyFloat n)), loc)
adamc@120 263 | EWrite (EFfiApp ("Basis", "urlifyFloat", [e]), _) =>
adamc@120 264 EFfiApp ("Basis", "urlifyFloat_w", [e])
adamc@120 265
adamc@120 266 | EFfiApp ("Basis", "urlifyString", [(EPrim (Prim.String s), _)]) =>
adamc@120 267 EPrim (Prim.String (urlifyString s))
adamc@120 268 | EWrite (EFfiApp ("Basis", "urlifyString", [(EPrim (Prim.String s), _)]), loc) =>
adamc@120 269 EWrite (EPrim (Prim.String (urlifyString s)), loc)
adamc@120 270 | EWrite (EFfiApp ("Basis", "urlifyString", [e]), _) =>
adamc@120 271 EFfiApp ("Basis", "urlifyString_w", [e])
adamc@120 272
adamc@188 273 | EFfiApp ("Basis", "urlifyBool", [(ECon (Enum, PConFfi {con = "True", ...}, NONE), _)]) =>
adamc@187 274 EPrim (Prim.String "1")
adamc@188 275 | EFfiApp ("Basis", "urlifyBool", [(ECon (Enum, PConFfi {con = "False", ...}, NONE), _)]) =>
adamc@187 276 EPrim (Prim.String "0")
adamc@188 277 | EWrite (EFfiApp ("Basis", "urlifyBool", [(ECon (Enum, PConFfi {con = "True", ...}, NONE), _)]), loc) =>
adamc@187 278 EWrite (EPrim (Prim.String "1"), loc)
adamc@188 279 | EWrite (EFfiApp ("Basis", "urlifyBool", [(ECon (Enum, PConFfi {con = "False", ...}, NONE), _)]), loc) =>
adamc@187 280 EWrite (EPrim (Prim.String "0"), loc)
adamc@187 281 | EWrite (EFfiApp ("Basis", "urlifyBool", [e]), _) =>
adamc@187 282 EFfiApp ("Basis", "urlifyBool_w", [e])
adamc@187 283
adamc@253 284 | EFfiApp ("Basis", "sqlifyInt", [(EPrim (Prim.Int n), _)]) =>
adamc@253 285 EPrim (Prim.String (sqlifyInt n))
adamc@467 286 | EFfiApp ("Basis", "sqlifyIntN", [(ENone _, _)]) =>
adamc@467 287 EPrim (Prim.String "NULL")
adamc@467 288 | EFfiApp ("Basis", "sqlifyIntN", [(ESome (_, (EPrim (Prim.Int n), _)), _)]) =>
adamc@467 289 EPrim (Prim.String (sqlifyInt n))
adamc@467 290
adamc@253 291 | EFfiApp ("Basis", "sqlifyFloat", [(EPrim (Prim.Float n), _)]) =>
adamc@253 292 EPrim (Prim.String (sqlifyFloat n))
adamc@253 293 | EFfiApp ("Basis", "sqlifyBool", [b as (_, loc)]) =>
adamc@253 294 optExp (ECase (b,
adamc@253 295 [((PCon (Enum, PConFfi {mod = "Basis", datatyp = "bool", con = "True", arg = NONE}, NONE), loc),
adamc@253 296 (EPrim (Prim.String "TRUE"), loc)),
adamc@253 297 ((PCon (Enum, PConFfi {mod = "Basis", datatyp = "bool", con = "False", arg = NONE}, NONE), loc),
adamc@253 298 (EPrim (Prim.String "FALSE"), loc))],
adamc@253 299 {disc = (TFfi ("Basis", "bool"), loc),
adamc@253 300 result = (TFfi ("Basis", "string"), loc)}), loc)
adamc@253 301 | EFfiApp ("Basis", "sqlifyString", [(EPrim (Prim.String n), _)]) =>
adamc@253 302 EPrim (Prim.String (sqlifyString n))
adamc@253 303
adamc@184 304 | EWrite (ECase (discE, pes, {disc, ...}), loc) =>
adamc@184 305 optExp (ECase (discE,
adamc@184 306 map (fn (p, e) => (p, (EWrite e, loc))) pes,
adamc@184 307 {disc = disc,
adamc@184 308 result = (TRecord [], loc)}), loc)
adamc@184 309
adamc@495 310 | EApp ((ECase (discE, pes, {disc, result = (TFun (_, ran), _)}), loc), arg as (ERecord [], _)) =>
adamc@453 311 let
adamc@453 312 fun doBody e =
adamc@453 313 case #1 e of
adamc@453 314 EAbs (_, _, _, body) => MonoReduce.subExpInExp (0, arg) body
adamc@453 315 | _ => (EApp (e, arg), loc)
adamc@453 316 in
adamc@453 317 optExp (ECase (discE,
adamc@453 318 map (fn (p, e) => (p, doBody e)) pes,
adamc@453 319 {disc = disc,
adamc@495 320 result = ran}), loc)
adamc@453 321 end
adamc@453 322
adamc@331 323 | EWrite (EQuery {exps, tables, state, query,
adamc@331 324 initial = (EPrim (Prim.String ""), _),
adamc@331 325 body = (EStrcat ((EPrim (Prim.String s), _),
adamc@331 326 (EStrcat ((ERel 0, _),
adamc@331 327 e'), _)), _)}, loc) =>
adamc@331 328 if CharVector.all Char.isSpace s then
adamc@331 329 EQuery {exps = exps, tables = tables, query = query,
adamc@331 330 state = (TRecord [], loc),
adamc@331 331 initial = (ERecord [], loc),
adamc@331 332 body = (optExp (EWrite e', loc), loc)}
adamc@331 333 else
adamc@331 334 e
adamc@331 335
adamc@334 336 | EWrite (EQuery {exps, tables, state, query,
adamc@334 337 initial = (EPrim (Prim.String ""), _),
adamc@486 338 body}, loc) =>
adamc@486 339 let
adamc@486 340 fun passLets (depth, (e', _), lets) =
adamc@486 341 case e' of
adamc@486 342 EStrcat ((ERel x, _), e'') =>
adamc@486 343 if x = depth then
adamc@486 344 let
adamc@486 345 val body = (optExp (EWrite e'', loc), loc)
adamc@486 346 val body = foldl (fn ((x, t, e'), e) =>
adamc@486 347 (ELet (x, t, e', e), loc))
adamc@486 348 body lets
adamc@486 349 in
adamc@486 350 EQuery {exps = exps, tables = tables, query = query,
adamc@486 351 state = (TRecord [], loc),
adamc@486 352 initial = (ERecord [], loc),
adamc@486 353 body = body}
adamc@486 354 end
adamc@486 355 else
adamc@486 356 e
adamc@486 357 | ELet (x, t, e', e'') =>
adamc@486 358 passLets (depth + 1, e'', (x, t, e') :: lets)
adamc@486 359 | _ => e
adamc@486 360 in
adamc@486 361 passLets (0, body, [])
adamc@486 362 end
adamc@486 363
adamc@486 364 (*| EWrite (EQuery {exps, tables, state, query,
adamc@486 365 initial = (EPrim (Prim.String ""), _),
adamc@334 366 body = (EStrcat ((ERel 0, _), e'), _)}, loc) =>
adamc@334 367 EQuery {exps = exps, tables = tables, query = query,
adamc@334 368 state = (TRecord [], loc),
adamc@334 369 initial = (ERecord [], loc),
adamc@486 370 body = (optExp (EWrite e', loc), loc)}*)
adamc@334 371
adamc@340 372 | EWrite (ELet (x, t, e1, e2), loc) =>
adamc@340 373 optExp (ELet (x, t, e1, (EWrite e2, loc)), loc)
adamc@340 374
adamc@451 375 | EWrite (EPrim (Prim.String ""), loc) =>
adamc@451 376 ERecord []
adamc@451 377
adamc@572 378 | ESignalBind ((ESignalReturn e1, loc), e2) =>
adamc@572 379 optExp (EApp (e2, e1), loc)
adamc@572 380
adamc@578 381 | EJavaScript (_, _, SOME (e, _)) => e
adamc@578 382
adamc@717 383 | EFfiApp ("Basis", "bless", [(se as EPrim (Prim.String s), loc)]) =>
adamc@717 384 (if !bless s then
adamc@717 385 ()
adamc@717 386 else
adamc@717 387 ErrorMsg.errorAt loc "Invalid URL passed to 'bless'";
adamc@717 388 se)
adamc@717 389
adamc@714 390 | EFfiApp ("Basis", "checkString", [(EPrim (Prim.String s), loc)]) =>
adamc@714 391 let
adamc@714 392 fun uwify (cs, acc) =
adamc@714 393 case cs of
adamc@714 394 [] => String.concat (rev acc)
adamc@714 395 | #"(" :: #"_" :: cs => uwify (cs, "(uw_" :: acc)
adamc@714 396 | #" " :: #"_" :: cs => uwify (cs, " uw_" :: acc)
adamc@714 397 | #"'" :: cs =>
adamc@714 398 let
adamc@714 399 fun waitItOut (cs, acc) =
adamc@714 400 case cs of
adamc@714 401 [] => raise Fail "MonoOpt: Unterminated SQL string literal"
adamc@714 402 | #"'" :: cs => uwify (cs, "'" :: acc)
adamc@714 403 | #"\\" :: #"'" :: cs => waitItOut (cs, "\\'" :: acc)
adamc@714 404 | #"\\" :: #"\\" :: cs => waitItOut (cs, "\\\\" :: acc)
adamc@714 405 | c :: cs => waitItOut (cs, str c :: acc)
adamc@714 406 in
adamc@714 407 waitItOut (cs, "'" :: acc)
adamc@714 408 end
adamc@714 409 | c :: cs => uwify (cs, str c :: acc)
adamc@714 410
adamc@714 411 val s = case String.explode s of
adamc@714 412 #"_" :: cs => uwify (cs, ["uw_"])
adamc@714 413 | cs => uwify (cs, [])
adamc@714 414 in
adamc@714 415 EPrim (Prim.String s)
adamc@714 416 end
adamc@714 417
adamc@96 418 | _ => e
adamc@96 419
adamc@105 420 and optExp e = #1 (U.Exp.map {typ = typ, exp = exp} e)
adamc@105 421
adamc@96 422 val optimize = U.File.map {typ = typ, exp = exp, decl = decl}
adamc@96 423
adamc@506 424 val optExp = U.Exp.map {typ = typ, exp = exp}
adamc@506 425
adamc@96 426 end