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view src/core_print.sml @ 155:4334bb734187
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author | Adam Chlipala <adamc@hcoop.net> |
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date | Thu, 24 Jul 2008 11:32:01 -0400 |
parents | 7420fa18d657 |
children | 80192edca30d |
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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 core Laconic/Web *) structure CorePrint :> CORE_PRINT = struct open Print.PD open Print open Core structure E = CoreEnv val debug = ref false fun p_kind' par (k, _) = case k of KType => string "Type" | KArrow (k1, k2) => parenIf par (box [p_kind' true k1, space, string "->", space, p_kind k2]) | KName => string "Name" | KRecord k => box [string "{", p_kind k, string "}"] | KUnit => string "Unit" and p_kind k = p_kind' false k fun p_con' par env (c, _) = case c of TFun (t1, t2) => parenIf par (box [p_con' true env t1, space, string "->", space, p_con env t2]) | TCFun (x, k, c) => parenIf par (box [string x, space, string "::", space, p_kind k, space, string "->", space, p_con (E.pushCRel env x k) c]) | TRecord (CRecord (_, xcs), _) => box [string "{", p_list (fn (x, c) => box [p_name env x, space, string ":", space, p_con env c]) xcs, string "}"] | TRecord c => box [string "$", p_con' true env c] | CRel n => ((if !debug then string (#1 (E.lookupCRel env n) ^ "_" ^ Int.toString n) else string (#1 (E.lookupCRel env n))) handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n)) | CNamed n => ((if !debug then string (#1 (E.lookupCNamed env n) ^ "__" ^ Int.toString n) else string (#1 (E.lookupCNamed env n))) handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n)) | CFfi (m, x) => box [string "FFI(", string m, string ".", string x, string ")"] | CApp (c1, c2) => parenIf par (box [p_con env c1, space, p_con' true env c2]) | CAbs (x, k, c) => parenIf par (box [string "fn", space, string x, space, string "::", space, p_kind k, space, string "=>", space, p_con (E.pushCRel env x k) c]) | CName s => box [string "#", string s] | CRecord (k, xcs) => if !debug then parenIf par (box [string "[", p_list (fn (x, c) => box [p_con env x, space, string "=", space, p_con env c]) xcs, string "]::", p_kind k]) else parenIf par (box [string "[", p_list (fn (x, c) => box [p_con env x, space, string "=", space, p_con env c]) xcs, string "]"]) | CConcat (c1, c2) => parenIf par (box [p_con' true env c1, space, string "++", space, p_con env c2]) | CFold _ => string "fold" | CUnit => string "()" and p_con env = p_con' false env and p_name env (all as (c, _)) = case c of CName s => string s | _ => p_con env all fun p_enamed env n = (if !debug then string (#1 (E.lookupENamed env n) ^ "__" ^ Int.toString n) else string (#1 (E.lookupENamed env n))) handle E.UnboundNamed _ => string ("UNBOUNDN_" ^ Int.toString n) 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))) handle E.UnboundRel _ => string ("UNBOUND_" ^ Int.toString n)) | ENamed n => p_enamed 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_con env t, space, string "=>", space, p_exp (E.pushERel env x t) e]) | ECApp (e, c) => parenIf par (box [p_exp env e, space, string "[", p_con env c, string "]"]) | ECAbs (x, k, e) => parenIf par (box [string "fn", space, string x, space, string "::", space, p_kind k, space, string "=>", space, p_exp (E.pushCRel env x k) e]) | ERecord xes => box [string "{", p_list (fn (x, e, _) => box [p_name env x, space, string "=", space, p_exp env e]) xes, string "}"] | EField (e, c, {field, rest}) => if !debug then box [p_exp' true env e, string ".", p_con' true env c, space, string "[", p_con env field, space, string " in ", space, p_con env rest, string "]"] else box [p_exp' true env e, string ".", p_con' true env c] | ECut (e, c, {field, rest}) => parenIf par (if !debug then box [p_exp' true env e, space, string "--", space, p_con' true env c, space, string "[", p_con env field, space, string " in ", space, p_con env rest, string "]"] else box [p_exp' true env e, space, string "--", space, p_con' true env c]) | EFold _ => string "fold" | EWrite e => box [string "write(", p_exp env e, string ")"] | EClosure (n, es) => box [string "CLOSURE(", p_enamed env n, p_list_sep (string "") (fn e => box [string ", ", p_exp env e]) es, string ")"] and p_exp env = p_exp' false env fun p_vali env (x, n, t, e, s) = let val xp = if !debug then box [string x, string "__", string (Int.toString n)] else string x in box [xp, space, string "as", space, string s, space, string ":", space, p_con env t, space, string "=", space, p_exp env e] end fun p_export_kind ck = case ck of Link => string "link" | Action => string "action" fun p_decl env (dAll as (d, _) : decl) = case d of DCon (x, n, k, c) => let val xp = if !debug then box [string x, string "__", string (Int.toString n)] else string x in box [string "con", space, xp, space, string "::", space, p_kind k, space, string "=", space, p_con env c] end | DVal vi => box [string "val", space, p_vali env vi] | DValRec vis => let val env = E.declBinds env dAll in box [string "val", space, string "rec", space, p_list_sep (box [newline, string "and", space]) (p_vali env) vis] end | DExport (ek, n) => box [string "export", space, p_export_kind ek, space, p_enamed env n, space, string "as", space, p_con env (#2 (E.lookupENamed env n))] 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