Mercurial > urweb

annotate src/core_print.sml @ 116:c5d7ce9ddd57

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Basic web server
author Adam Chlipala <adamc@hcoop.net>
date Sun, 13 Jul 2008 13:38:23 -0400
parents 3739af9e727a
children fd98dd10dce7
rev   line source
adamc@16 1 (* Copyright (c) 2008, Adam Chlipala
adamc@16 2 * All rights reserved.
adamc@16 3 *
adamc@16 4 * Redistribution and use in source and binary forms, with or without
adamc@16 5 * modification, are permitted provided that the following conditions are met:
adamc@16 6 *
adamc@16 7 * - Redistributions of source code must retain the above copyright notice,
adamc@16 8 * this list of conditions and the following disclaimer.
adamc@16 9 * - Redistributions in binary form must reproduce the above copyright notice,
adamc@16 10 * this list of conditions and the following disclaimer in the documentation
adamc@16 11 * and/or other materials provided with the distribution.
adamc@16 12 * - The names of contributors may not be used to endorse or promote products
adamc@16 13 * derived from this software without specific prior written permission.
adamc@16 14 *
adamc@16 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@16 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@16 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@16 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@16 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
adamc@16 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@16 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@16 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@16 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@16 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@16 25 * POSSIBILITY OF SUCH DAMAGE.
adamc@16 26 *)
adamc@16 27
adamc@16 28 (* Pretty-printing core Laconic/Web *)
adamc@16 29
adamc@16 30 structure CorePrint :> CORE_PRINT = struct
adamc@16 31
adamc@16 32 open Print.PD
adamc@16 33 open Print
adamc@16 34
adamc@16 35 open Core
adamc@16 36
adamc@16 37 structure E = CoreEnv
adamc@16 38
adamc@16 39 val debug = ref false
adamc@16 40
adamc@16 41 fun p_kind' par (k, _) =
adamc@16 42 case k of
adamc@16 43 KType => string "Type"
adamc@16 44 | KArrow (k1, k2) => parenIf par (box [p_kind' true k1,
adamc@16 45 space,
adamc@16 46 string "->",
adamc@16 47 space,
adamc@16 48 p_kind k2])
adamc@16 49 | KName => string "Name"
adamc@16 50 | KRecord k => box [string "{", p_kind k, string "}"]
adamc@87 51 | KUnit => string "Unit"
adamc@16 52
adamc@16 53 and p_kind k = p_kind' false k
adamc@16 54
adamc@16 55 fun p_con' par env (c, _) =
adamc@16 56 case c of
adamc@16 57 TFun (t1, t2) => parenIf par (box [p_con' true env t1,
adamc@16 58 space,
adamc@16 59 string "->",
adamc@16 60 space,
adamc@16 61 p_con env t2])
adamc@16 62 | TCFun (x, k, c) => parenIf par (box [string x,
adamc@16 63 space,
adamc@16 64 string "::",
adamc@16 65 space,
adamc@16 66 p_kind k,
adamc@16 67 space,
adamc@16 68 string "->",
adamc@16 69 space,
adamc@16 70 p_con (E.pushCRel env x k) c])
adamc@16 71 | TRecord (CRecord (_, xcs), _) => box [string "{",
adamc@16 72 p_list (fn (x, c) =>
adamc@20 73 box [p_name env x,
adamc@16 74 space,
adamc@16 75 string ":",
adamc@16 76 space,
adamc@16 77 p_con env c]) xcs,
adamc@16 78 string "}"]
adamc@16 79 | TRecord c => box [string "$",
adamc@16 80 p_con' true env c]
adamc@16 81
adamc@16 82 | CRel n =>
adamc@39 83 ((if !debug then
adamc@39 84 string (#1 (E.lookupCRel env n) ^ "_" ^ Int.toString n)
adamc@39 85 else
adamc@39 86 string (#1 (E.lookupCRel env n)))
adamc@39 87 handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n))
adamc@16 88 | CNamed n =>
adamc@39 89 ((if !debug then
adamc@39 90 string (#1 (E.lookupCNamed env n) ^ "__" ^ Int.toString n)
adamc@39 91 else
adamc@39 92 string (#1 (E.lookupCNamed env n)))
adamc@39 93 handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n))
adamc@48 94 | CFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
adamc@16 95
adamc@16 96 | CApp (c1, c2) => parenIf par (box [p_con env c1,
adamc@16 97 space,
adamc@16 98 p_con' true env c2])
adamc@16 99 | CAbs (x, k, c) => parenIf par (box [string "fn",
adamc@16 100 space,
adamc@16 101 string x,
adamc@16 102 space,
adamc@16 103 string "::",
adamc@16 104 space,
adamc@16 105 p_kind k,
adamc@16 106 space,
adamc@16 107 string "=>",
adamc@16 108 space,
adamc@16 109 p_con (E.pushCRel env x k) c])
adamc@16 110
adamc@16 111 | CName s => box [string "#", string s]
adamc@16 112
adamc@16 113 | CRecord (k, xcs) =>
adamc@16 114 if !debug then
adamc@16 115 parenIf par (box [string "[",
adamc@16 116 p_list (fn (x, c) =>
adamc@16 117 box [p_con env x,
adamc@16 118 space,
adamc@16 119 string "=",
adamc@16 120 space,
adamc@16 121 p_con env c]) xcs,
adamc@16 122 string "]::",
adamc@16 123 p_kind k])
adamc@16 124 else
adamc@16 125 parenIf par (box [string "[",
adamc@16 126 p_list (fn (x, c) =>
adamc@16 127 box [p_con env x,
adamc@16 128 space,
adamc@16 129 string "=",
adamc@16 130 space,
adamc@16 131 p_con env c]) xcs,
adamc@16 132 string "]"])
adamc@16 133 | CConcat (c1, c2) => parenIf par (box [p_con' true env c1,
adamc@16 134 space,
adamc@16 135 string "++",
adamc@16 136 space,
adamc@16 137 p_con env c2])
adamc@69 138 | CFold _ => string "fold"
adamc@87 139 | CUnit => string "()"
adamc@16 140
adamc@16 141 and p_con env = p_con' false env
adamc@16 142
adamc@20 143 and p_name env (all as (c, _)) =
adamc@20 144 case c of
adamc@20 145 CName s => string s
adamc@20 146 | _ => p_con env all
adamc@20 147
adamc@109 148 fun p_enamed env n =
adamc@109 149 (if !debug then
adamc@109 150 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@109 151 else
adamc@109 152 string (#1 (E.lookupENamed env n)))
adamc@109 153 handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n)
adamc@109 154
adamc@16 155 fun p_exp' par env (e, _) =
adamc@16 156 case e of
adamc@16 157 EPrim p => Prim.p_t p
adamc@16 158 | ERel n =>
adamc@39 159 ((if !debug then
adamc@39 160 string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
adamc@39 161 else
adamc@39 162 string (#1 (E.lookupERel env n)))
adamc@39 163 handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n))
adamc@109 164 | ENamed n => p_enamed env n
adamc@48 165 | EFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
adamc@48 166 | EFfiApp (m, x, es) => box [string "FFI(",
adamc@48 167 string m,
adamc@48 168 string ".",
adamc@48 169 string x,
adamc@48 170 string "(",
adamc@48 171 p_list (p_exp env) es,
adamc@48 172 string "))"]
adamc@16 173 | EApp (e1, e2) => parenIf par (box [p_exp env e1,
adamc@16 174 space,
adamc@16 175 p_exp' true env e2])
adamc@26 176 | EAbs (x, t, _, e) => parenIf par (box [string "fn",
adamc@26 177 space,
adamc@26 178 string x,
adamc@26 179 space,
adamc@26 180 string ":",
adamc@26 181 space,
adamc@26 182 p_con env t,
adamc@26 183 space,
adamc@26 184 string "=>",
adamc@26 185 space,
adamc@26 186 p_exp (E.pushERel env x t) e])
adamc@16 187 | ECApp (e, c) => parenIf par (box [p_exp env e,
adamc@16 188 space,
adamc@16 189 string "[",
adamc@16 190 p_con env c,
adamc@16 191 string "]"])
adamc@16 192 | ECAbs (x, k, e) => parenIf par (box [string "fn",
adamc@16 193 space,
adamc@16 194 string x,
adamc@16 195 space,
adamc@16 196 string "::",
adamc@16 197 space,
adamc@16 198 p_kind k,
adamc@16 199 space,
adamc@16 200 string "=>",
adamc@16 201 space,
adamc@16 202 p_exp (E.pushCRel env x k) e])
adamc@16 203
adamc@16 204 | ERecord xes => box [string "{",
adamc@29 205 p_list (fn (x, e, _) =>
adamc@21 206 box [p_name env x,
adamc@16 207 space,
adamc@16 208 string "=",
adamc@16 209 space,
adamc@16 210 p_exp env e]) xes,
adamc@16 211 string "}"]
adamc@16 212 | EField (e, c, {field, rest}) =>
adamc@16 213 if !debug then
adamc@16 214 box [p_exp' true env e,
adamc@16 215 string ".",
adamc@16 216 p_con' true env c,
adamc@16 217 space,
adamc@16 218 string "[",
adamc@16 219 p_con env field,
adamc@16 220 space,
adamc@16 221 string " in ",
adamc@16 222 space,
adamc@16 223 p_con env rest,
adamc@16 224 string "]"]
adamc@16 225 else
adamc@16 226 box [p_exp' true env e,
adamc@16 227 string ".",
adamc@16 228 p_con' true env c]
adamc@73 229 | EFold _ => string "fold"
adamc@16 230
adamc@102 231 | EWrite e => box [string "write(",
adamc@102 232 p_exp env e,
adamc@102 233 string ")"]
adamc@102 234
adamc@110 235 | EClosure (n, es) => box [string "CLOSURE(",
adamc@110 236 p_enamed env n,
adamc@110 237 p_list_sep (string "") (fn e => box [string ", ",
adamc@110 238 p_exp env e]) es,
adamc@110 239 string ")"]
adamc@110 240
adamc@16 241 and p_exp env = p_exp' false env
adamc@16 242
adamc@16 243 fun p_decl env ((d, _) : decl) =
adamc@16 244 case d of
adamc@16 245 DCon (x, n, k, c) =>
adamc@16 246 let
adamc@16 247 val xp = if !debug then
adamc@16 248 box [string x,
adamc@16 249 string "__",
adamc@16 250 string (Int.toString n)]
adamc@16 251 else
adamc@16 252 string x
adamc@16 253 in
adamc@16 254 box [string "con",
adamc@16 255 space,
adamc@16 256 xp,
adamc@16 257 space,
adamc@16 258 string "::",
adamc@16 259 space,
adamc@16 260 p_kind k,
adamc@16 261 space,
adamc@16 262 string "=",
adamc@16 263 space,
adamc@16 264 p_con env c]
adamc@16 265 end
adamc@109 266 | DVal (x, n, t, e, s) =>
adamc@16 267 let
adamc@16 268 val xp = if !debug then
adamc@16 269 box [string x,
adamc@16 270 string "__",
adamc@16 271 string (Int.toString n)]
adamc@16 272 else
adamc@16 273 string x
adamc@16 274 in
adamc@16 275 box [string "val",
adamc@16 276 space,
adamc@16 277 xp,
adamc@16 278 space,
adamc@109 279 string "as",
adamc@109 280 space,
adamc@109 281 string s,
adamc@109 282 space,
adamc@16 283 string ":",
adamc@16 284 space,
adamc@16 285 p_con env t,
adamc@16 286 space,
adamc@16 287 string "=",
adamc@16 288 space,
adamc@16 289 p_exp env e]
adamc@16 290 end
adamc@109 291 | DExport n => box [string "export",
adamc@109 292 space,
adamc@109 293 p_enamed env n]
adamc@16 294
adamc@16 295 fun p_file env file =
adamc@16 296 let
adamc@31 297 val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 298 (p_decl env d,
adamc@31 299 E.declBinds env d))
adamc@16 300 env file
adamc@16 301 in
adamc@16 302 p_list_sep newline (fn x => x) pds
adamc@16 303 end
adamc@16 304
adamc@16 305 end