Mercurial > urweb
view src/corify.sml @ 214:766b5475477f
Corifying con-tuples
author | Adam Chlipala <adamc@hcoop.net> |
---|---|
date | Sat, 16 Aug 2008 15:03:05 -0400 |
parents | 0343557355fc |
children | 3aa010e97db9 |
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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. *) structure Corify :> CORIFY = struct structure EM = ErrorMsg structure L = Expl structure L' = Core structure IM = IntBinaryMap structure SM = BinaryMapFn(struct type ord_key = string val compare = String.compare end) local val count = ref 0 in fun reset v = count := v fun alloc () = let val r = !count in count := r + 1; r end end structure St : sig type t val empty : t val debug : t -> unit val enter : t -> t val leave : t -> {outer : t, inner : t} val ffi : string -> L'.con SM.map -> (string * string list * L'.con option * L'.datatype_kind) SM.map -> t datatype core_con = CNormal of int | CFfi of string val bindCon : t -> string -> int -> t * int val lookupConById : t -> int -> int option val lookupConByName : t -> string -> core_con val bindConstructor : t -> string -> int -> L'.patCon -> t val lookupConstructorByNameOpt : t -> string -> L'.patCon option val lookupConstructorByName : t -> string -> L'.patCon val lookupConstructorById : t -> int -> L'.patCon datatype core_val = ENormal of int | EFfi of string * L'.con val bindVal : t -> string -> int -> t * int val bindConstructorVal : t -> string -> int -> t val lookupValById : t -> int -> int option val lookupValByName : t -> string -> core_val val bindStr : t -> string -> int -> t -> t val lookupStrById : t -> int -> t val lookupStrByName : string * t -> t val bindFunctor : t -> string -> int -> string -> int -> L.str -> t val lookupFunctorById : t -> int -> string * int * L.str val lookupFunctorByName : string * t -> string * int * L.str end = struct datatype flattening = FNormal of {cons : int SM.map, constructors : L'.patCon SM.map, vals : int SM.map, strs : flattening SM.map, funs : (string * int * L.str) SM.map} | FFfi of {mod : string, vals : L'.con SM.map, constructors : (string * string list * L'.con option * L'.datatype_kind) SM.map} type t = { cons : int IM.map, constructors : L'.patCon IM.map, vals : int IM.map, strs : flattening IM.map, funs : (string * int * L.str) IM.map, current : flattening, nested : flattening list } val empty = { cons = IM.empty, constructors = IM.empty, vals = IM.empty, strs = IM.empty, funs = IM.empty, current = FNormal { cons = SM.empty, constructors = SM.empty, vals = SM.empty, strs = SM.empty, funs = SM.empty }, nested = [] } fun debug ({current = FNormal {cons, constructors, vals, strs, funs}, ...} : t) = print ("cons: " ^ Int.toString (SM.numItems cons) ^ "; " ^ "constructors: " ^ Int.toString (SM.numItems constructors) ^ "; " ^ "vals: " ^ Int.toString (SM.numItems vals) ^ "; " ^ "strs: " ^ Int.toString (SM.numItems strs) ^ "; " ^ "funs: " ^ Int.toString (SM.numItems funs) ^ "\n") | debug _ = print "Not normal!\n" datatype core_con = CNormal of int | CFfi of string datatype core_val = ENormal of int | EFfi of string * L'.con fun bindCon {cons, constructors, vals, strs, funs, current, nested} s n = let val n' = alloc () val current = case current of FFfi _ => raise Fail "Binding inside FFfi" | FNormal {cons, constructors, vals, strs, funs} => FNormal {cons = SM.insert (cons, s, n'), constructors = constructors, vals = vals, strs = strs, funs = funs} in ({cons = IM.insert (cons, n, n'), constructors = constructors, vals = vals, strs = strs, funs = funs, current = current, nested = nested}, n') end fun lookupConById ({cons, ...} : t) n = IM.find (cons, n) fun lookupConByName ({current, ...} : t) x = case current of FFfi {mod = m, ...} => CFfi m | FNormal {cons, ...} => case SM.find (cons, x) of NONE => raise Fail "Corify.St.lookupConByName" | SOME n => CNormal n fun bindVal {cons, constructors, vals, strs, funs, current, nested} s n = let val n' = alloc () val current = case current of FFfi _ => raise Fail "Binding inside FFfi" | FNormal {cons, constructors, vals, strs, funs} => FNormal {cons = cons, constructors = constructors, vals = SM.insert (vals, s, n'), strs = strs, funs = funs} in ({cons = cons, constructors = constructors, vals = IM.insert (vals, n, n'), strs = strs, funs = funs, current = current, nested = nested}, n') end fun bindConstructorVal {cons, constructors, vals, strs, funs, current, nested} s n = let val current = case current of FFfi _ => raise Fail "Binding inside FFfi" | FNormal {cons, constructors, vals, strs, funs} => FNormal {cons = cons, constructors = constructors, vals = SM.insert (vals, s, n), strs = strs, funs = funs} in {cons = cons, constructors = constructors, vals = IM.insert (vals, n, n), strs = strs, funs = funs, current = current, nested = nested} end fun lookupValById ({vals, ...} : t) n = IM.find (vals, n) fun lookupValByName ({current, ...} : t) x = case current of FFfi {mod = m, vals, ...} => (case SM.find (vals, x) of NONE => raise Fail "Corify.St.lookupValByName: no type for FFI val" | SOME t => EFfi (m, t)) | FNormal {vals, ...} => case SM.find (vals, x) of NONE => raise Fail "Corify.St.lookupValByName" | SOME n => ENormal n fun bindConstructor {cons, constructors, vals, strs, funs, current, nested} s n n' = let val current = case current of FFfi _ => raise Fail "Binding inside FFfi" | FNormal {cons, constructors, vals, strs, funs} => FNormal {cons = cons, constructors = SM.insert (constructors, s, n'), vals = vals, strs = strs, funs = funs} in {cons = cons, constructors = IM.insert (constructors, n, n'), vals = vals, strs = strs, funs = funs, current = current, nested = nested} end fun lookupConstructorById ({constructors, ...} : t) n = case IM.find (constructors, n) of NONE => raise Fail "Corify.St.lookupConstructorById" | SOME x => x fun lookupConstructorByNameOpt ({current, ...} : t) x = case current of FFfi {mod = m, constructors, ...} => (case SM.find (constructors, x) of NONE => NONE | SOME (n, xs, to, dk) => SOME (L'.PConFfi {mod = m, datatyp = n, params = xs, con = x, arg = to, kind = dk})) | FNormal {constructors, ...} => case SM.find (constructors, x) of NONE => NONE | SOME n => SOME n fun lookupConstructorByName ({current, ...} : t) x = case current of FFfi {mod = m, constructors, ...} => (case SM.find (constructors, x) of NONE => raise Fail "Corify.St.lookupConstructorByName [1]" | SOME (n, xs, to, dk) => L'.PConFfi {mod = m, datatyp = n, params = xs, con = x, arg = to, kind = dk}) | FNormal {constructors, ...} => case SM.find (constructors, x) of NONE => raise Fail "Corify.St.lookupConstructorByName [2]" | SOME n => n fun enter {cons, constructors, vals, strs, funs, current, nested} = {cons = cons, constructors = constructors, vals = vals, strs = strs, funs = funs, current = FNormal {cons = SM.empty, constructors = SM.empty, vals = SM.empty, strs = SM.empty, funs = SM.empty}, nested = current :: nested} fun dummy f = {cons = IM.empty, constructors = IM.empty, vals = IM.empty, strs = IM.empty, funs = IM.empty, current = f, nested = []} fun leave {cons, constructors, vals, strs, funs, current, nested = m1 :: rest} = {outer = {cons = cons, constructors = constructors, vals = vals, strs = strs, funs = funs, current = m1, nested = rest}, inner = dummy current} | leave _ = raise Fail "Corify.St.leave" fun ffi m vals constructors = dummy (FFfi {mod = m, vals = vals, constructors = constructors}) fun bindStr ({cons, constructors, vals, strs, funs, current = FNormal {cons = mcons, constructors = mconstructors, vals = mvals, strs = mstrs, funs = mfuns}, nested} : t) x n ({current = f, ...} : t) = {cons = cons, constructors = constructors, vals = vals, strs = IM.insert (strs, n, f), funs = funs, current = FNormal {cons = mcons, constructors = mconstructors, vals = mvals, strs = SM.insert (mstrs, x, f), funs = mfuns}, nested = nested} | bindStr _ _ _ _ = raise Fail "Corify.St.bindStr" fun lookupStrById ({strs, ...} : t) n = case IM.find (strs, n) of NONE => raise Fail "Corify.St.lookupStrById" | SOME f => dummy f fun lookupStrByName (m, {current = FNormal {strs, ...}, ...} : t) = (case SM.find (strs, m) of NONE => raise Fail "Corify.St.lookupStrByName" | SOME f => dummy f) | lookupStrByName _ = raise Fail "Corify.St.lookupStrByName" fun bindFunctor ({cons, constructors, vals, strs, funs, current = FNormal {cons = mcons, constructors = mconstructors, vals = mvals, strs = mstrs, funs = mfuns}, nested} : t) x n xa na str = {cons = cons, constructors = constructors, vals = vals, strs = strs, funs = IM.insert (funs, n, (xa, na, str)), current = FNormal {cons = mcons, constructors = mconstructors, vals = mvals, strs = mstrs, funs = SM.insert (mfuns, x, (xa, na, str))}, nested = nested} | bindFunctor _ _ _ _ _ _ = raise Fail "Corify.St.bindFunctor" fun lookupFunctorById ({funs, ...} : t) n = case IM.find (funs, n) of NONE => raise Fail "Corify.St.lookupFunctorById" | SOME v => v fun lookupFunctorByName (m, {current = FNormal {funs, ...}, ...} : t) = (case SM.find (funs, m) of NONE => raise Fail "Corify.St.lookupFunctorByName" | SOME v => v) | lookupFunctorByName _ = raise Fail "Corify.St.lookupFunctorByName" end fun corifyKind (k, loc) = case k of L.KType => (L'.KType, loc) | L.KArrow (k1, k2) => (L'.KArrow (corifyKind k1, corifyKind k2), loc) | L.KName => (L'.KName, loc) | L.KRecord k => (L'.KRecord (corifyKind k), loc) | L.KUnit => (L'.KUnit, loc) | L.KTuple ks => (L'.KTuple (map corifyKind ks), loc) fun corifyCon st (c, loc) = case c of L.TFun (t1, t2) => (L'.TFun (corifyCon st t1, corifyCon st t2), loc) | L.TCFun (x, k, t) => (L'.TCFun (x, corifyKind k, corifyCon st t), loc) | L.TRecord c => (L'.TRecord (corifyCon st c), loc) | L.CRel n => (L'.CRel n, loc) | L.CNamed n => (case St.lookupConById st n of NONE => (L'.CNamed n, loc) | SOME n => (L'.CNamed n, loc)) | L.CModProj (m, ms, x) => let val st = St.lookupStrById st m val st = foldl St.lookupStrByName st ms in case St.lookupConByName st x of St.CNormal n => (L'.CNamed n, loc) | St.CFfi m => (L'.CFfi (m, x), loc) end | L.CApp (c1, c2) => (L'.CApp (corifyCon st c1, corifyCon st c2), loc) | L.CAbs (x, k, c) => (L'.CAbs (x, corifyKind k, corifyCon st c), loc) | L.CName s => (L'.CName s, loc) | L.CRecord (k, xcs) => (L'.CRecord (corifyKind k, map (fn (c1, c2) => (corifyCon st c1, corifyCon st c2)) xcs), loc) | L.CConcat (c1, c2) => (L'.CConcat (corifyCon st c1, corifyCon st c2), loc) | L.CFold (k1, k2) => (L'.CFold (corifyKind k1, corifyKind k2), loc) | L.CUnit => (L'.CUnit, loc) | L.CTuple cs => (L'.CTuple (map (corifyCon st) cs), loc) | L.CProj (c, n) => (L'.CProj (corifyCon st c, n), loc) fun corifyPatCon st pc = case pc of L.PConVar n => St.lookupConstructorById st n | L.PConProj (m1, ms, x) => let val st = St.lookupStrById st m1 val st = foldl St.lookupStrByName st ms in St.lookupConstructorByName st x end fun corifyPat st (p, loc) = case p of L.PWild => (L'.PWild, loc) | L.PVar (x, t) => (L'.PVar (x, corifyCon st t), loc) | L.PPrim p => (L'.PPrim p, loc) | L.PCon (dk, pc, ts, po) => (L'.PCon (dk, corifyPatCon st pc, map (corifyCon st) ts, Option.map (corifyPat st) po), loc) | L.PRecord xps => (L'.PRecord (map (fn (x, p, t) => (x, corifyPat st p, corifyCon st t)) xps), loc) fun corifyExp st (e, loc) = case e of L.EPrim p => (L'.EPrim p, loc) | L.ERel n => (L'.ERel n, loc) | L.ENamed n => (case St.lookupValById st n of NONE => (L'.ENamed n, loc) | SOME n => (L'.ENamed n, loc)) | L.EModProj (m, ms, x) => let val st = St.lookupStrById st m val st = foldl St.lookupStrByName st ms in case St.lookupConstructorByNameOpt st x of SOME (pc as L'.PConFfi {mod = m, datatyp, params, arg, kind, ...}) => let val args = ListUtil.mapi (fn (i, _) => (L'.CRel i, loc)) params val e = case arg of NONE => (L'.ECon (kind, pc, args, NONE), loc) | SOME dom => (L'.EAbs ("x", dom, (L'.CFfi (m, datatyp), loc), (L'.ECon (kind, pc, args, SOME (L'.ERel 0, loc)), loc)), loc) val k = (L'.KType, loc) in foldr (fn (x, e) => (L'.ECAbs (x, k, e), loc)) e params end | _ => case St.lookupValByName st x of St.ENormal n => (L'.ENamed n, loc) | St.EFfi (m, t) => case t of (L'.TFun (dom as (L'.TRecord (L'.CRecord (_, []), _), _), ran), _) => (L'.EAbs ("arg", dom, ran, (L'.EFfiApp (m, x, []), loc)), loc) | t as (L'.TFun _, _) => let fun getArgs (all as (t, _), args) = case t of L'.TFun (dom, ran) => getArgs (ran, dom :: args) | _ => (all, rev args) val (result, args) = getArgs (t, []) val (actuals, _) = foldr (fn (_, (actuals, n)) => ((L'.ERel n, loc) :: actuals, n + 1)) ([], 0) args val app = (L'.EFfiApp (m, x, actuals), loc) val (abs, _, _) = foldr (fn (t, (abs, ran, n)) => ((L'.EAbs ("arg" ^ Int.toString n, t, ran, abs), loc), (L'.TFun (t, ran), loc), n - 1)) (app, result, length args - 1) args in abs end | _ => (L'.EFfi (m, x), loc) end | L.EApp (e1, e2) => (L'.EApp (corifyExp st e1, corifyExp st e2), loc) | L.EAbs (x, dom, ran, e1) => (L'.EAbs (x, corifyCon st dom, corifyCon st ran, corifyExp st e1), loc) | L.ECApp (e1, c) => (L'.ECApp (corifyExp st e1, corifyCon st c), loc) | L.ECAbs (x, k, e1) => (L'.ECAbs (x, corifyKind k, corifyExp st e1), loc) | L.ERecord xes => (L'.ERecord (map (fn (c, e, t) => (corifyCon st c, corifyExp st e, corifyCon st t)) xes), loc) | L.EField (e1, c, {field, rest}) => (L'.EField (corifyExp st e1, corifyCon st c, {field = corifyCon st field, rest = corifyCon st rest}), loc) | L.ECut (e1, c, {field, rest}) => (L'.ECut (corifyExp st e1, corifyCon st c, {field = corifyCon st field, rest = corifyCon st rest}), loc) | L.EFold k => (L'.EFold (corifyKind k), loc) | L.ECase (e, pes, {disc, result}) => (L'.ECase (corifyExp st e, map (fn (p, e) => (corifyPat st p, corifyExp st e)) pes, {disc = corifyCon st disc, result = corifyCon st result}), loc) | L.EWrite e => (L'.EWrite (corifyExp st e), loc) fun corifyDecl ((d, loc : EM.span), st) = case d of L.DCon (x, n, k, c) => let val (st, n) = St.bindCon st x n in ([(L'.DCon (x, n, corifyKind k, corifyCon st c), loc)], st) end | L.DDatatype (x, n, xs, xncs) => let val (st, n) = St.bindCon st x n val (xncs, st) = ListUtil.foldlMap (fn ((x, n, co), st) => let val st = St.bindConstructor st x n (L'.PConVar n) val st = St.bindConstructorVal st x n val co = Option.map (corifyCon st) co in ((x, n, co), st) end) st xncs val dk = ElabUtil.classifyDatatype xncs val t = (L'.CNamed n, loc) val nxs = length xs - 1 val t = ListUtil.foldli (fn (i, _, t) => (L'.CApp (t, (L'.CRel (nxs - i), loc)), loc)) t xs val k = (L'.KType, loc) val dcons = map (fn (x, n, to) => let val args = ListUtil.mapi (fn (i, _) => (L'.CRel (nxs - i), loc)) xs val (e, t) = case to of NONE => ((L'.ECon (dk, L'.PConVar n, args, NONE), loc), t) | SOME t' => ((L'.EAbs ("x", t', t, (L'.ECon (dk, L'.PConVar n, args, SOME (L'.ERel 0, loc)), loc)), loc), (L'.TFun (t', t), loc)) val t = foldr (fn (x, t) => (L'.TCFun (x, k, t), loc)) t xs val e = foldr (fn (x, e) => (L'.ECAbs (x, k, e), loc)) e xs in (L'.DVal (x, n, t, e, ""), loc) end) xncs in ((L'.DDatatype (x, n, xs, xncs), loc) :: dcons, st) end | L.DDatatypeImp (x, n, m1, ms, s, xs, xncs) => let val (st, n) = St.bindCon st x n val c = corifyCon st (L.CModProj (m1, ms, s), loc) val m = foldl (fn (x, m) => (L.StrProj (m, x), loc)) (L.StrVar m1, loc) ms val (_, {inner, ...}) = corifyStr (m, st) val (xncs, st) = ListUtil.foldlMap (fn ((x, n, co), st) => let val n' = St.lookupConstructorByName inner x val st = St.bindConstructor st x n n' val (st, n) = St.bindVal st x n val co = Option.map (corifyCon st) co in ((x, n, co), st) end) st xncs val nxs = length xs - 1 val c = ListUtil.foldli (fn (i, _, c) => (L'.CApp (c, (L'.CRel (nxs - i), loc)), loc)) c xs val k = (L'.KType, loc) val k' = foldl (fn (_, k') => (L'.KArrow (k, k'), loc)) k xs val cds = map (fn (x, n, co) => let val t = case co of NONE => c | SOME t' => (L'.TFun (t', c), loc) val e = corifyExp st (L.EModProj (m1, ms, x), loc) val t = foldr (fn (x, t) => (L'.TCFun (x, k, t), loc)) t xs in (L'.DVal (x, n, t, e, x), loc) end) xncs in ((L'.DCon (x, n, k', c), loc) :: cds, st) end | L.DVal (x, n, t, e) => let val (st, n) = St.bindVal st x n val s = if String.isPrefix "wrap_" x then String.extract (x, 5, NONE) else x in ([(L'.DVal (x, n, corifyCon st t, corifyExp st e, s), loc)], st) end | L.DValRec vis => let val (vis, st) = ListUtil.foldlMap (fn ((x, n, t, e), st) => let val (st, n) = St.bindVal st x n in ((x, n, t, e), st) end) st vis val vis = map (fn (x, n, t, e) => let val s = if String.isPrefix "wrap_" x then String.extract (x, 5, NONE) else x in (x, n, corifyCon st t, corifyExp st e, s) end) vis in ([(L'.DValRec vis, loc)], st) end | L.DSgn _ => ([], st) | L.DStr (x, n, _, (L.StrFun (xa, na, _, _, str), _)) => ([], St.bindFunctor st x n xa na str) | L.DStr (x, n, _, str) => let val (ds, {inner, outer}) = corifyStr (str, st) val st = St.bindStr outer x n inner in (ds, st) end | L.DFfiStr (m, n, (sgn, _)) => (case sgn of L.SgnConst sgis => let val (ds, cmap, conmap, st) = foldl (fn ((sgi, _), (ds, cmap, conmap, st)) => case sgi of L.SgiConAbs (x, n, k) => let val (st, n') = St.bindCon st x n in ((L'.DCon (x, n', corifyKind k, (L'.CFfi (m, x), loc)), loc) :: ds, cmap, conmap, st) end | L.SgiCon (x, n, k, _) => let val (st, n') = St.bindCon st x n in ((L'.DCon (x, n', corifyKind k, (L'.CFfi (m, x), loc)), loc) :: ds, cmap, conmap, st) end | L.SgiDatatype (x, n, xs, xnts) => let val k = (L'.KType, loc) val dk = ElabUtil.classifyDatatype xnts val (st, n') = St.bindCon st x n val (xnts, (ds', st, cmap, conmap)) = ListUtil.foldlMap (fn ((x', n, to), (ds', st, cmap, conmap)) => let val dt = (L'.CNamed n', loc) val args = ListUtil.mapi (fn (i, _) => (L'.CRel i, loc)) xs val to = Option.map (corifyCon st) to val pc = L'.PConFfi {mod = m, datatyp = x, params = xs, con = x', arg = to, kind = dk} fun wrapT t = foldr (fn (x, t) => (L'.TCFun (x, k, t), loc)) t xs fun wrapE e = foldr (fn (x, e) => (L'.ECAbs (x, k, e), loc)) e xs val (cmap, d) = case to of NONE => (SM.insert (cmap, x', wrapT dt), (L'.DVal (x', n, wrapT dt, wrapE (L'.ECon (dk, pc, args, NONE), loc), ""), loc)) | SOME t => let val tf = (L'.TFun (t, dt), loc) val e = wrapE (L'.EAbs ("x", t, tf, (L'.ECon (dk, pc, args, SOME (L'.ERel 0, loc)), loc)), loc) val d = (L'.DVal (x', n, wrapT tf, e, ""), loc) in (SM.insert (cmap, x', wrapT tf), d) end val st = St.bindConstructor st x' n pc val conmap = SM.insert (conmap, x', (x, xs, to, dk)) in ((x', n, to), (d :: ds', st, cmap, conmap)) end) ([], st, cmap, conmap) xnts in (ds' @ (L'.DDatatype (x, n', xs, xnts), loc) :: ds, cmap, conmap, st) end | L.SgiVal (x, _, c) => (ds, SM.insert (cmap, x, corifyCon st c), conmap, st) | _ => (ds, cmap, conmap, st)) ([], SM.empty, SM.empty, st) sgis val st = St.bindStr st m n (St.ffi m cmap conmap) in (rev ds, st) end | _ => raise Fail "Non-const signature for FFI structure") | L.DExport (en, sgn, str) => (case #1 sgn of L.SgnConst sgis => let fun pathify (str, _) = case str of L.StrVar m => SOME (m, []) | L.StrProj (str, s) => Option.map (fn (m, ms) => (m, ms @ [s])) (pathify str) | _ => NONE in case pathify str of NONE => (ErrorMsg.errorAt loc "Structure is too fancy to export"; ([], st)) | SOME (m, ms) => let fun wrapSgi ((sgi, _), (wds, eds)) = case sgi of L.SgiVal (s, _, t as (L.TFun (dom, ran), _)) => (case (#1 dom, #1 ran) of (L.TRecord (L.CRecord (_, []), _), L.CApp ((L.CApp ((L.CApp ((L.CModProj (_, [], "xml"), _), (L.CRecord (_, [((L.CName "Html", _), _)]), _)), _), _), _), _)) => let val ran = (L.TRecord (L.CRecord ((L.KType, loc), []), loc), loc) val e = (L.EModProj (m, ms, s), loc) val e = (L.EAbs ("vs", dom, ran, (L.EWrite (L.EApp (e, (L.ERel 0, loc)), loc), loc)), loc) in ((L.DVal ("wrap_" ^ s, 0, (L.TFun (dom, ran), loc), e), loc) :: wds, (fn st => case #1 (corifyExp st (L.EModProj (en, [], "wrap_" ^ s), loc)) of L'.ENamed n => (L'.DExport (L'.Link, n), loc) | _ => raise Fail "Corify: Value to export didn't corify properly") :: eds) end | _ => (wds, eds)) | _ => (wds, eds) val (wds, eds) = foldl wrapSgi ([], []) sgis val wrapper = (L.StrConst wds, loc) val (ds, {inner, outer}) = corifyStr (wrapper, st) val st = St.bindStr outer "wrapper" en inner val ds = ds @ map (fn f => f st) eds in (ds, st) end end | _ => raise Fail "Non-const signature for 'export'") and corifyStr ((str, _), st) = case str of L.StrConst ds => let val st = St.enter st val (ds, st) = ListUtil.foldlMapConcat corifyDecl st ds in (ds, St.leave st) end | L.StrVar n => ([], {inner = St.lookupStrById st n, outer = st}) | L.StrProj (str, x) => let val (ds, {inner, outer}) = corifyStr (str, st) in (ds, {inner = St.lookupStrByName (x, inner), outer = outer}) end | L.StrFun _ => raise Fail "Corify of nested functor definition" | L.StrApp (str1, str2) => let fun unwind' (str, _) = case str of L.StrVar n => St.lookupStrById st n | L.StrProj (str, x) => St.lookupStrByName (x, unwind' str) | _ => raise Fail "Corify of fancy functor application [1]" fun unwind (str, _) = case str of L.StrVar n => St.lookupFunctorById st n | L.StrProj (str, x) => St.lookupFunctorByName (x, unwind' str) | _ => raise Fail "Corify of fancy functor application [2]" val (xa, na, body) = unwind str1 val (ds1, {inner = inner', outer}) = corifyStr (str2, st) val (ds2, {inner, outer}) = corifyStr (body, St.bindStr outer xa na inner') in (ds1 @ ds2, {inner = St.bindStr inner xa na inner', outer = outer}) end fun maxName ds = foldl (fn ((d, _), n) => case d of L.DCon (_, n', _, _) => Int.max (n, n') | L.DDatatype (_, n', _, _) => Int.max (n, n') | L.DDatatypeImp (_, n', _, _, _, _, _) => Int.max (n, n') | L.DVal (_, n', _, _) => Int.max (n, n') | L.DValRec vis => foldl (fn ((_, n', _, _), n) => Int.max (n, n)) n vis | L.DSgn (_, n', _) => Int.max (n, n') | L.DStr (_, n', _, str) => Int.max (n, Int.max (n', maxNameStr str)) | L.DFfiStr (_, n', _) => Int.max (n, n') | L.DExport _ => n) 0 ds and maxNameStr (str, _) = case str of L.StrConst ds => maxName ds | L.StrVar n => n | L.StrProj (str, _) => maxNameStr str | L.StrFun (_, _, _, _, str) => maxNameStr str | L.StrApp (str1, str2) => Int.max (maxNameStr str1, maxNameStr str2) fun corify ds = let val () = reset (maxName ds + 1) val (ds, _) = ListUtil.foldlMapConcat corifyDecl St.empty ds in ds end end