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annotate src/monoize.sml @ 144:f0d3402184d1

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Simple forms work
author Adam Chlipala <adamc@hcoop.net>
date Tue, 22 Jul 2008 15:12:20 -0400
parents 4b9c2bd6157c
children 15e8b9775539
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 structure Monoize :> MONOIZE = struct
adamc@25 29
adamc@25 30 structure E = ErrorMsg
adamc@25 31 structure Env = CoreEnv
adamc@25 32
adamc@25 33 structure L = Core
adamc@25 34 structure L' = Mono
adamc@25 35
adamc@25 36 val dummyTyp = (L'.TNamed 0, E.dummySpan)
adamc@25 37
adamc@25 38 fun monoName env (all as (c, loc)) =
adamc@25 39 let
adamc@25 40 fun poly () =
adamc@25 41 (E.errorAt loc "Unsupported name constructor";
adamc@25 42 Print.eprefaces' [("Constructor", CorePrint.p_con env all)];
adamc@25 43 "")
adamc@25 44 in
adamc@25 45 case c of
adamc@25 46 L.CName s => s
adamc@25 47 | _ => poly ()
adamc@25 48 end
adamc@25 49
adamc@25 50 fun monoType env (all as (c, loc)) =
adamc@25 51 let
adamc@25 52 fun poly () =
adamc@25 53 (E.errorAt loc "Unsupported type constructor";
adamc@25 54 Print.eprefaces' [("Constructor", CorePrint.p_con env all)];
adamc@25 55 dummyTyp)
adamc@25 56 in
adamc@25 57 case c of
adamc@25 58 L.TFun (c1, c2) => (L'.TFun (monoType env c1, monoType env c2), loc)
adamc@25 59 | L.TCFun _ => poly ()
adamc@25 60 | L.TRecord (L.CRecord ((L.KType, _), xcs), _) =>
adamc@25 61 (L'.TRecord (map (fn (x, t) => (monoName env x, monoType env t)) xcs), loc)
adamc@25 62 | L.TRecord _ => poly ()
adamc@25 63
adamc@143 64 | L.CApp ((L.CApp ((L.CApp ((L.CFfi ("Basis", "xml"), _), _), _), _), _), _) =>
adamc@143 65 (L'.TFfi ("Basis", "string"), loc)
adamc@94 66
adamc@25 67 | L.CRel _ => poly ()
adamc@25 68 | L.CNamed n => (L'.TNamed n, loc)
adamc@51 69 | L.CFfi mx => (L'.TFfi mx, loc)
adamc@25 70 | L.CApp _ => poly ()
adamc@25 71 | L.CAbs _ => poly ()
adamc@25 72
adamc@25 73 | L.CName _ => poly ()
adamc@25 74
adamc@25 75 | L.CRecord _ => poly ()
adamc@25 76 | L.CConcat _ => poly ()
adamc@69 77 | L.CFold _ => poly ()
adamc@87 78 | L.CUnit => poly ()
adamc@25 79 end
adamc@25 80
adamc@25 81 val dummyExp = (L'.EPrim (Prim.Int 0), E.dummySpan)
adamc@25 82
adamc@120 83 fun fooifyExp name env =
adamc@120 84 let
adamc@120 85 fun fooify (e, tAll as (t, loc)) =
adamc@120 86 case #1 e of
adamc@120 87 L'.EClosure (fnam, [(L'.ERecord [], _)]) =>
adamc@120 88 let
adamc@120 89 val (_, _, _, s) = Env.lookupENamed env fnam
adamc@120 90 in
adamc@120 91 (L'.EPrim (Prim.String s), loc)
adamc@120 92 end
adamc@120 93 | L'.EClosure (fnam, args) =>
adamc@120 94 let
adamc@120 95 val (_, ft, _, s) = Env.lookupENamed env fnam
adamc@120 96 val ft = monoType env ft
adamc@111 97
adamc@120 98 fun attrify (args, ft, e) =
adamc@120 99 case (args, ft) of
adamc@120 100 ([], _) => e
adamc@120 101 | (arg :: args, (L'.TFun (t, ft), _)) =>
adamc@121 102 attrify (args, ft,
adamc@121 103 (L'.EStrcat (e,
adamc@121 104 (L'.EStrcat ((L'.EPrim (Prim.String "/"), loc),
adamc@121 105 fooify (arg, t)), loc)), loc))
adamc@120 106 | _ => (E.errorAt loc "Type mismatch encoding attribute";
adamc@120 107 e)
adamc@120 108 in
adamc@120 109 attrify (args, ft, (L'.EPrim (Prim.String s), loc))
adamc@120 110 end
adamc@120 111 | _ =>
adamc@120 112 case t of
adamc@120 113 L'.TFfi ("Basis", "string") => (L'.EFfiApp ("Basis", name ^ "ifyString", [e]), loc)
adamc@120 114 | L'.TFfi ("Basis", "int") => (L'.EFfiApp ("Basis", name ^ "ifyInt", [e]), loc)
adamc@120 115 | L'.TFfi ("Basis", "float") => (L'.EFfiApp ("Basis", name ^ "ifyFloat", [e]), loc)
adamc@120 116 | L'.TRecord [] => (L'.EPrim (Prim.String ""), loc)
adamc@111 117
adamc@120 118 | _ => (E.errorAt loc "Don't know how to encode attribute type";
adamc@120 119 Print.eprefaces' [("Type", MonoPrint.p_typ MonoEnv.empty tAll)];
adamc@120 120 dummyExp)
adamc@120 121 in
adamc@120 122 fooify
adamc@120 123 end
adamc@120 124
adamc@120 125 val attrifyExp = fooifyExp "attr"
adamc@120 126 val urlifyExp = fooifyExp "url"
adamc@105 127
adamc@143 128 datatype 'a failable_search =
adamc@143 129 Found of 'a
adamc@143 130 | NotFound
adamc@143 131 | Error
adamc@143 132
adamc@25 133 fun monoExp env (all as (e, loc)) =
adamc@25 134 let
adamc@25 135 fun poly () =
adamc@25 136 (E.errorAt loc "Unsupported expression";
adamc@25 137 Print.eprefaces' [("Expression", CorePrint.p_exp env all)];
adamc@25 138 dummyExp)
adamc@25 139 in
adamc@25 140 case e of
adamc@25 141 L.EPrim p => (L'.EPrim p, loc)
adamc@25 142 | L.ERel n => (L'.ERel n, loc)
adamc@25 143 | L.ENamed n => (L'.ENamed n, loc)
adamc@51 144 | L.EFfi mx => (L'.EFfi mx, loc)
adamc@51 145 | L.EFfiApp (m, x, es) => (L'.EFfiApp (m, x, map (monoExp env) es), loc)
adamc@94 146
adamc@139 147 | L.EApp (
adamc@139 148 (L.ECApp (
adamc@141 149 (L.ECApp ((L.EFfi ("Basis", "cdata"), _), _), _),
adamc@139 150 _), _),
adamc@139 151 se) => (L'.EFfiApp ("Basis", "htmlifyString", [monoExp env se]), loc)
adamc@95 152 | L.EApp (
adamc@95 153 (L.EApp (
adamc@95 154 (L.ECApp (
adamc@95 155 (L.ECApp (
adamc@95 156 (L.ECApp (
adamc@139 157 (L.ECApp (
adamc@140 158 (L.EFfi ("Basis", "join"),
adamc@139 159 _), _), _),
adamc@139 160 _), _),
adamc@95 161 _), _),
adamc@95 162 _), _),
adamc@95 163 xml1), _),
adamc@95 164 xml2) => (L'.EStrcat (monoExp env xml1, monoExp env xml2), loc)
adamc@95 165
adamc@95 166 | L.EApp (
adamc@95 167 (L.EApp (
adamc@104 168 (L.EApp (
adamc@95 169 (L.ECApp (
adamc@104 170 (L.ECApp (
adamc@104 171 (L.ECApp (
adamc@104 172 (L.ECApp (
adamc@139 173 (L.ECApp (
adamc@139 174 (L.ECApp (
adamc@139 175 (L.ECApp (
adamc@139 176 (L.ECApp (
adamc@139 177 (L.EFfi ("Basis", "tag"),
adamc@139 178 _), _), _), _), _), _), _), _), _), _), _), _), _), _), _), _), _),
adamc@104 179 attrs), _),
adamc@95 180 tag), _),
adamc@95 181 xml) =>
adamc@95 182 let
adamc@140 183 fun getTag' (e, _) =
adamc@140 184 case e of
adamc@143 185 L.EFfi ("Basis", tag) => (tag, [])
adamc@143 186 | L.ECApp (e, t) => let
adamc@143 187 val (tag, ts) = getTag' e
adamc@143 188 in
adamc@143 189 (tag, ts @ [t])
adamc@143 190 end
adamc@140 191 | _ => (E.errorAt loc "Non-constant XML tag";
adamc@140 192 Print.eprefaces' [("Expression", CorePrint.p_exp env tag)];
adamc@143 193 ("", []))
adamc@140 194
adamc@95 195 fun getTag (e, _) =
adamc@95 196 case e of
adamc@143 197 L.EFfiApp ("Basis", tag, [(L.ERecord [], _)]) => (tag, [])
adamc@140 198 | L.EApp (e, (L.ERecord [], _)) => getTag' e
adamc@95 199 | _ => (E.errorAt loc "Non-constant XML tag";
adamc@95 200 Print.eprefaces' [("Expression", CorePrint.p_exp env tag)];
adamc@143 201 ("", []))
adamc@95 202
adamc@143 203 val (tag, targs) = getTag tag
adamc@95 204
adamc@104 205 val attrs = monoExp env attrs
adamc@104 206
adamc@143 207 fun tagStart tag =
adamc@104 208 case #1 attrs of
adamc@104 209 L'.ERecord xes =>
adamc@104 210 let
adamc@104 211 fun lowercaseFirst "" = ""
adamc@143 212 | lowercaseFirst s = str (Char.toLower (String.sub (s, 0)))
adamc@143 213 ^ String.extract (s, 1, NONE)
adamc@104 214
adamc@104 215 val s = (L'.EPrim (Prim.String (String.concat ["<", tag])), loc)
adamc@104 216 in
adamc@105 217 foldl (fn ((x, e, t), s) =>
adamc@104 218 let
adamc@104 219 val xp = " " ^ lowercaseFirst x ^ "=\""
adamc@120 220
adamc@120 221 val fooify =
adamc@120 222 case x of
adamc@120 223 "Link" => urlifyExp
adamc@143 224 | "Action" => urlifyExp
adamc@120 225 | _ => attrifyExp
adamc@104 226 in
adamc@104 227 (L'.EStrcat (s,
adamc@104 228 (L'.EStrcat ((L'.EPrim (Prim.String xp), loc),
adamc@120 229 (L'.EStrcat (fooify env (e, t),
adamc@143 230 (L'.EPrim (Prim.String "\""),
adamc@143 231 loc)),
adamc@104 232 loc)),
adamc@104 233 loc)), loc)
adamc@104 234 end)
adamc@143 235 s xes
adamc@104 236 end
adamc@143 237 | _ => raise Fail "Non-record attributes!"
adamc@104 238
adamc@143 239 fun input typ =
adamc@143 240 case targs of
adamc@143 241 [(L.CName name, _)] =>
adamc@143 242 (L'.EStrcat (tagStart "input",
adamc@143 243 (L'.EPrim (Prim.String (" type=\"" ^ typ ^ "\" name=\"" ^ name ^ "\"/>")),
adamc@143 244 loc)), loc)
adamc@143 245 | _ => (Print.prefaces "Targs" (map (fn t => ("T", CorePrint.p_con env t)) targs);
adamc@143 246 raise Fail "No named passed to input tag")
adamc@143 247 in
adamc@143 248 case tag of
adamc@143 249 "submit" => (L'.EPrim (Prim.String "<input type=\"submit\"/>"), loc)
adamc@104 250
adamc@143 251 | "textbox" =>
adamc@143 252 (case targs of
adamc@143 253 [_, (L.CName name, _)] =>
adamc@143 254 (L'.EStrcat (tagStart "input",
adamc@143 255 (L'.EPrim (Prim.String (" name=\"" ^ name ^ "\"/>")),
adamc@143 256 loc)), loc)
adamc@143 257 | _ => (Print.prefaces "Targs" (map (fn t => ("T", CorePrint.p_con env t)) targs);
adamc@143 258 raise Fail "No named passed to input tag"))
adamc@104 259
adamc@143 260 | _ =>
adamc@143 261 let
adamc@143 262 val tagStart = tagStart tag
adamc@143 263
adamc@143 264 fun normal () =
adamc@143 265 (L'.EStrcat ((L'.EStrcat (tagStart, (L'.EPrim (Prim.String ">"), loc)), loc),
adamc@143 266 (L'.EStrcat (monoExp env xml,
adamc@143 267 (L'.EPrim (Prim.String (String.concat ["</", tag, ">"])),
adamc@143 268 loc)), loc)),
adamc@143 269 loc)
adamc@143 270 in
adamc@143 271 case xml of
adamc@143 272 (L.EApp ((L.ECApp (
adamc@143 273 (L.ECApp ((L.EFfi ("Basis", "cdata"), _),
adamc@143 274 _), _),
adamc@143 275 _), _),
adamc@143 276 (L.EPrim (Prim.String s), _)), _) =>
adamc@143 277 if CharVector.all Char.isSpace s then
adamc@143 278 (L'.EStrcat (tagStart, (L'.EPrim (Prim.String "/>"), loc)), loc)
adamc@143 279 else
adamc@143 280 normal ()
adamc@143 281 | _ => normal ()
adamc@143 282 end
adamc@95 283 end
adamc@94 284
adamc@141 285 | L.EApp ((L.ECApp (
adamc@141 286 (L.ECApp ((L.EFfi ("Basis", "lform"), _), _), _),
adamc@141 287 _), _),
adamc@141 288 xml) =>
adamc@143 289 let
adamc@143 290 fun findSubmit (e, _) =
adamc@143 291 case e of
adamc@143 292 L.EApp (
adamc@143 293 (L.EApp (
adamc@143 294 (L.ECApp (
adamc@143 295 (L.ECApp (
adamc@143 296 (L.ECApp (
adamc@143 297 (L.ECApp (
adamc@143 298 (L.EFfi ("Basis", "join"),
adamc@143 299 _), _), _),
adamc@143 300 _), _),
adamc@143 301 _), _),
adamc@143 302 _), _),
adamc@143 303 xml1), _),
adamc@143 304 xml2) => (case findSubmit xml1 of
adamc@143 305 Error => Error
adamc@143 306 | NotFound => findSubmit xml2
adamc@143 307 | Found e =>
adamc@143 308 case findSubmit xml2 of
adamc@143 309 NotFound => Found e
adamc@143 310 | _ => Error)
adamc@143 311 | L.EApp (
adamc@143 312 (L.EApp (
adamc@143 313 (L.EApp (
adamc@143 314 (L.ECApp (
adamc@143 315 (L.ECApp (
adamc@143 316 (L.ECApp (
adamc@143 317 (L.ECApp (
adamc@143 318 (L.ECApp (
adamc@143 319 (L.ECApp (
adamc@143 320 (L.ECApp (
adamc@143 321 (L.ECApp (
adamc@143 322 (L.EFfi ("Basis", "tag"),
adamc@143 323 _), _), _), _), _), _), _), _), _), _), _), _), _), _), _), _), _),
adamc@143 324 attrs), _),
adamc@143 325 _), _),
adamc@143 326 xml) =>
adamc@143 327 (case #1 attrs of
adamc@143 328 L.ERecord xes =>
adamc@143 329 (case ListUtil.search (fn ((L.CName "Action", _), e, t) => SOME (e, t)
adamc@143 330 | _ => NONE) xes of
adamc@143 331 NONE => findSubmit xml
adamc@143 332 | SOME et =>
adamc@143 333 case findSubmit xml of
adamc@143 334 NotFound => Found et
adamc@143 335 | _ => Error)
adamc@143 336 | _ => findSubmit xml)
adamc@143 337 | _ => NotFound
adamc@143 338
adamc@143 339 val (action, actionT) = case findSubmit xml of
adamc@143 340 NotFound => raise Fail "No submit found"
adamc@143 341 | Error => raise Fail "Not ready for multi-submit lforms yet"
adamc@143 342 | Found et => et
adamc@143 343
adamc@143 344 val actionT = monoType env actionT
adamc@143 345 val action = monoExp env action
adamc@143 346 in
adamc@143 347 (L'.EStrcat ((L'.EStrcat ((L'.EPrim (Prim.String "<form action=\""), loc),
adamc@143 348 (L'.EStrcat (urlifyExp env (action, actionT),
adamc@143 349 (L'.EPrim (Prim.String "\">"), loc)), loc)), loc),
adamc@143 350 (L'.EStrcat (monoExp env xml,
adamc@143 351 (L'.EPrim (Prim.String "</form>"), loc)), loc)), loc)
adamc@143 352 end
adamc@141 353
adamc@25 354 | L.EApp (e1, e2) => (L'.EApp (monoExp env e1, monoExp env e2), loc)
adamc@26 355 | L.EAbs (x, dom, ran, e) =>
adamc@26 356 (L'.EAbs (x, monoType env dom, monoType env ran, monoExp (Env.pushERel env x dom) e), loc)
adamc@25 357 | L.ECApp _ => poly ()
adamc@25 358 | L.ECAbs _ => poly ()
adamc@25 359
adamc@29 360 | L.ERecord xes => (L'.ERecord (map (fn (x, e, t) => (monoName env x, monoExp env e, monoType env t)) xes), loc)
adamc@25 361 | L.EField (e, x, _) => (L'.EField (monoExp env e, monoName env x), loc)
adamc@73 362 | L.EFold _ => poly ()
adamc@102 363 | L.EWrite e => (L'.EWrite (monoExp env e), loc)
adamc@110 364
adamc@111 365 | L.EClosure (n, es) => (L'.EClosure (n, map (monoExp env) es), loc)
adamc@25 366 end
adamc@25 367
adamc@25 368 fun monoDecl env (all as (d, loc)) =
adamc@25 369 let
adamc@25 370 fun poly () =
adamc@25 371 (E.errorAt loc "Unsupported declaration";
adamc@25 372 Print.eprefaces' [("Declaration", CorePrint.p_decl env all)];
adamc@25 373 NONE)
adamc@25 374 in
adamc@25 375 case d of
adamc@25 376 L.DCon _ => NONE
adamc@109 377 | L.DVal (x, n, t, e, s) => SOME (Env.pushENamed env x n t (SOME e) s,
adamc@109 378 (L'.DVal (x, n, monoType env t, monoExp env e, s), loc))
adamc@128 379 | L.DValRec vis =>
adamc@128 380 let
adamc@128 381 val env = foldl (fn ((x, n, t, e, s), env) => Env.pushENamed env x n t NONE s) env vis
adamc@128 382 in
adamc@128 383 SOME (env,
adamc@128 384 (L'.DValRec (map (fn (x, n, t, e, s) => (x, n, monoType env t, monoExp env e, s)) vis), loc))
adamc@128 385 end
adamc@144 386 | L.DExport (ek, n) =>
adamc@115 387 let
adamc@120 388 val (_, t, _, s) = Env.lookupENamed env n
adamc@120 389
adamc@120 390 fun unwind (t, _) =
adamc@120 391 case t of
adamc@120 392 L.TFun (dom, ran) => dom :: unwind ran
adamc@120 393 | _ => []
adamc@120 394
adamc@120 395 val ts = map (monoType env) (unwind t)
adamc@115 396 in
adamc@144 397 SOME (env, (L'.DExport (ek, s, n, ts), loc))
adamc@115 398 end
adamc@25 399 end
adamc@25 400
adamc@25 401 fun monoize env ds =
adamc@25 402 let
adamc@25 403 val (_, ds) = List.foldl (fn (d, (env, ds)) =>
adamc@25 404 case monoDecl env d of
adamc@25 405 NONE => (env, ds)
adamc@25 406 | SOME (env, d) => (env, d :: ds)) (env, []) ds
adamc@25 407 in
adamc@25 408 rev ds
adamc@25 409 end
adamc@25 410
adamc@25 411 end