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Optimizing attrification of constants
author Adam Chlipala <adamc@hcoop.net>
date Thu, 10 Jul 2008 15:58:16 -0400
parents d101cb1efe55
children 813e5a52063d
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@25 56 | TNamed n =>
adamc@25 57 if !debug then
adamc@25 58 string (#1 (E.lookupTNamed env n) ^ "__" ^ Int.toString n)
adamc@25 59 else
adamc@25 60 string (#1 (E.lookupTNamed env n))
adamc@51 61 | TFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
adamc@25 62
adamc@25 63 and p_typ env = p_typ' false env
adamc@25 64
adamc@25 65 fun p_exp' par env (e, _) =
adamc@25 66 case e of
adamc@25 67 EPrim p => Prim.p_t p
adamc@25 68 | ERel n =>
adamc@25 69 if !debug then
adamc@25 70 string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n)
adamc@25 71 else
adamc@25 72 string (#1 (E.lookupERel env n))
adamc@25 73 | ENamed n =>
adamc@25 74 if !debug then
adamc@25 75 string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n)
adamc@25 76 else
adamc@25 77 string (#1 (E.lookupENamed env n))
adamc@51 78 | EFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"]
adamc@51 79 | EFfiApp (m, x, es) => box [string "FFI(",
adamc@51 80 string m,
adamc@51 81 string ".",
adamc@51 82 string x,
adamc@51 83 string "(",
adamc@51 84 p_list (p_exp env) es,
adamc@51 85 string "))"]
adamc@25 86 | EApp (e1, e2) => parenIf par (box [p_exp env e1,
adamc@25 87 space,
adamc@25 88 p_exp' true env e2])
adamc@26 89 | EAbs (x, t, _, e) => parenIf par (box [string "fn",
adamc@26 90 space,
adamc@26 91 string x,
adamc@26 92 space,
adamc@26 93 string ":",
adamc@26 94 space,
adamc@26 95 p_typ env t,
adamc@26 96 space,
adamc@26 97 string "=>",
adamc@26 98 space,
adamc@26 99 p_exp (E.pushERel env x t) e])
adamc@25 100
adamc@25 101 | ERecord xes => box [string "{",
adamc@29 102 p_list (fn (x, e, _) =>
adamc@25 103 box [string x,
adamc@25 104 space,
adamc@25 105 string "=",
adamc@25 106 space,
adamc@25 107 p_exp env e]) xes,
adamc@25 108 string "}"]
adamc@25 109 | EField (e, x) =>
adamc@25 110 box [p_exp' true env e,
adamc@25 111 string ".",
adamc@25 112 string x]
adamc@25 113
adamc@94 114
adamc@94 115 | EStrcat (e1, e2) => box [p_exp' true env e1,
adamc@94 116 space,
adamc@102 117 string "^",
adamc@94 118 space,
adamc@94 119 p_exp' true env e2]
adamc@94 120
adamc@102 121 | EWrite e => box [string "write(",
adamc@102 122 p_exp env e,
adamc@102 123 string ")"]
adamc@102 124
adamc@106 125 | ESeq (e1, e2) => box [p_exp env e1,
adamc@106 126 string ";",
adamc@106 127 space,
adamc@106 128 p_exp env e2]
adamc@106 129
adamc@25 130 and p_exp env = p_exp' false env
adamc@25 131
adamc@25 132 fun p_decl env ((d, _) : decl) =
adamc@25 133 case d of
adamc@25 134 DVal (x, n, t, e) =>
adamc@25 135 let
adamc@25 136 val xp = if !debug then
adamc@25 137 box [string x,
adamc@25 138 string "__",
adamc@25 139 string (Int.toString n)]
adamc@25 140 else
adamc@25 141 string x
adamc@25 142 in
adamc@25 143 box [string "val",
adamc@25 144 space,
adamc@25 145 xp,
adamc@25 146 space,
adamc@25 147 string ":",
adamc@25 148 space,
adamc@25 149 p_typ env t,
adamc@25 150 space,
adamc@25 151 string "=",
adamc@25 152 space,
adamc@25 153 p_exp env e]
adamc@25 154 end
adamc@100 155 | DPage (xcs, e) => box [string "page",
adamc@100 156 string "[",
adamc@100 157 p_list (fn (x, t) =>
adamc@100 158 box [string x,
adamc@100 159 space,
adamc@100 160 string ":",
adamc@100 161 space,
adamc@100 162 p_typ env t]) xcs,
adamc@100 163 string "]",
adamc@100 164 space,
adamc@100 165 string "=",
adamc@100 166 space,
adamc@100 167 p_exp env e]
adamc@100 168
adamc@25 169 fun p_file env file =
adamc@25 170 let
adamc@31 171 val (pds, _) = ListUtil.foldlMap (fn (d, env) =>
adamc@31 172 (p_decl env d,
adamc@31 173 E.declBinds env d))
adamc@25 174 env file
adamc@25 175 in
adamc@25 176 p_list_sep newline (fn x => x) pds
adamc@25 177 end
adamc@25 178
adamc@25 179 end