Mercurial > urweb
view src/mono_print.sml @ 74:144d082b47ae
Reduce efold
author | Adam Chlipala <adamc@hcoop.net> |
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date | Thu, 26 Jun 2008 12:12:06 -0400 |
parents | 92361a008a10 |
children | 40d146f467c5 |
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(* Copyright (c) 2008, Adam Chlipala * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * - Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * - The names of contributors may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. *) (* Pretty-printing monomorphic Laconic/Web *) structure MonoPrint :> MONO_PRINT = struct open Print.PD open Print open Mono structure E = MonoEnv val debug = ref false fun p_typ' par env (t, _) = case t of TFun (t1, t2) => parenIf par (box [p_typ' true env t1, space, string "->", space, p_typ env t2]) | TRecord xcs => box [string "{", p_list (fn (x, t) => box [string x, space, string ":", space, p_typ env t]) xcs, string "}"] | TNamed n => if !debug then string (#1 (E.lookupTNamed env n) ^ "__" ^ Int.toString n) else string (#1 (E.lookupTNamed env n)) | TFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"] and p_typ env = p_typ' false env fun p_exp' par env (e, _) = case e of EPrim p => Prim.p_t p | ERel n => if !debug then string (#1 (E.lookupERel env n) ^ "_" ^ Int.toString n) else string (#1 (E.lookupERel env n)) | ENamed n => if !debug then string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n) else string (#1 (E.lookupENamed env n)) | EFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"] | EFfiApp (m, x, es) => box [string "FFI(", string m, string ".", string x, string "(", p_list (p_exp env) es, string "))"] | EApp (e1, e2) => parenIf par (box [p_exp env e1, space, p_exp' true env e2]) | EAbs (x, t, _, e) => parenIf par (box [string "fn", space, string x, space, string ":", space, p_typ env t, space, string "=>", space, p_exp (E.pushERel env x t) e]) | ERecord xes => box [string "{", p_list (fn (x, e, _) => box [string x, space, string "=", space, p_exp env e]) xes, string "}"] | EField (e, x) => box [p_exp' true env e, string ".", string x] and p_exp env = p_exp' false env fun p_decl env ((d, _) : decl) = case d of DVal (x, n, t, e) => let val xp = if !debug then box [string x, string "__", string (Int.toString n)] else string x in box [string "val", space, xp, space, string ":", space, p_typ env t, space, string "=", space, p_exp env e] end fun p_file env file = let val (pds, _) = ListUtil.foldlMap (fn (d, env) => (p_decl env d, E.declBinds env d)) env file in p_list_sep newline (fn x => x) pds end end