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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 Cjrize :> CJRIZE = struct
structure L = Mono
structure L' = Cjr
structure IM = IntBinaryMap
structure Sm :> sig
type t
val empty : t
val find : t * (string * L.typ) list * (string * L'.typ) list -> t * int
val findList : t * L.typ * L'.typ -> t * int
val declares : t -> (int * (string * L'.typ) list) list
val clearDeclares : t -> t
end = struct
structure FM = BinaryMapFn(struct
type ord_key = L.typ
val compare = MonoUtil.Typ.compare
end)
type t = {
count : int,
normal : int FM.map,
lists : int FM.map,
decls : (int * (string * L'.typ) list) list
}
val empty : t = {
count = 1,
normal = FM.insert (FM.empty, (L.TRecord [], ErrorMsg.dummySpan), 0),
lists = FM.empty,
decls = []
}
fun find (v as {count, normal, decls, lists}, xts, xts') =
let
val t = (L.TRecord xts, ErrorMsg.dummySpan)
in
case FM.find (normal, t) of
SOME i => (v, i)
| NONE => ({count = count+1,
normal = FM.insert (normal, t, count),
lists = lists,
decls = (count, xts') :: decls},
count)
end
fun findList (v as {count, normal, decls, lists}, t, t') =
case FM.find (lists, t) of
SOME i => (v, i)
| NONE =>
let
val xts = [("1", t), ("2", (L.TList t, #2 t))]
val xts' = [("1", t'), ("2", (L'.TList (t', count), #2 t'))]
in
({count = count+1,
normal = FM.insert (normal, (L.TRecord xts, ErrorMsg.dummySpan), count),
lists = FM.insert (lists, t, count),
decls = (count, xts') :: decls},
count)
end
fun declares (v : t) = #decls v
fun clearDeclares (v : t) = {count = #count v,
normal = #normal v,
lists = #lists v,
decls = []}
end
fun cifyTyp x =
let
fun cify dtmap ((t, loc), sm) =
case t of
L.TFun (t1, t2) =>
let
val (t1, sm) = cify dtmap (t1, sm)
val (t2, sm) = cify dtmap (t2, sm)
in
((L'.TFun (t1, t2), loc), sm)
end
| L.TRecord xts =>
let
val xts = ListMergeSort.sort (fn ((x, _), (y, _)) => String.compare (x, y) = GREATER) xts
val old_xts = xts
val (xts, sm) = ListUtil.foldlMap (fn ((x, t), sm) =>
let
val (t, sm) = cify dtmap (t, sm)
in
((x, t), sm)
end)
sm xts
val (sm, si) = Sm.find (sm, old_xts, xts)
in
((L'.TRecord si, loc), sm)
end
| L.TDatatype (n, ref (dk, xncs)) =>
(case IM.find (dtmap, n) of
SOME r => ((L'.TDatatype (dk, n, r), loc), sm)
| NONE =>
let
val r = ref []
val dtmap = IM.insert (dtmap, n, r)
val (xncs, sm) = ListUtil.foldlMap (fn ((x, n, to), sm) =>
case to of
NONE => ((x, n, NONE), sm)
| SOME t =>
let
val (t, sm) = cify dtmap (t, sm)
in
((x, n, SOME t), sm)
end)
sm xncs
in
r := xncs;
((L'.TDatatype (dk, n, r), loc), sm)
end)
| L.TFfi mx => ((L'.TFfi mx, loc), sm)
| L.TOption t =>
let
val (t, sm) = cify dtmap (t, sm)
in
((L'.TOption t, loc), sm)
end
| L.TList t =>
let
val (t', sm) = cify dtmap (t, sm)
val (sm, si) = Sm.findList (sm, t, t')
in
((L'.TList (t', si), loc), sm)
end
| L.TSource => ((L'.TFfi ("Basis", "int"), loc), sm)
| L.TSignal _ => raise Fail "Cjrize: TSignal remains"
in
cify IM.empty x
end
val dummye = (L'.EPrim (Prim.Int 0), ErrorMsg.dummySpan)
fun cifyPatCon (pc, sm) =
case pc of
L.PConVar n => (L'.PConVar n, sm)
| L.PConFfi {mod = m, datatyp, con, arg} =>
let
val (arg, sm) =
case arg of
NONE => (NONE, sm)
| SOME t =>
let
val (t, sm) = cifyTyp (t, sm)
in
(SOME t, sm)
end
in
(L'.PConFfi {mod = m, datatyp = datatyp, con = con, arg = arg}, sm)
end
fun cifyPat ((p, loc), sm) =
case p of
L.PWild => ((L'.PWild, loc), sm)
| L.PVar (x, t) =>
let
val (t, sm) = cifyTyp (t, sm)
in
((L'.PVar (x, t), loc), sm)
end
| L.PPrim p => ((L'.PPrim p, loc), sm)
| L.PCon (dk, pc, NONE) =>
let
val (pc, sm) = cifyPatCon (pc, sm)
in
((L'.PCon (dk, pc, NONE), loc), sm)
end
| L.PCon (dk, pc, SOME p) =>
let
val (pc, sm) = cifyPatCon (pc, sm)
val (p, sm) = cifyPat (p, sm)
in
((L'.PCon (dk, pc, SOME p), loc), sm)
end
| L.PRecord xps =>
let
val (xps, sm) = ListUtil.foldlMap (fn ((x, p, t), sm) =>
let
val (p, sm) = cifyPat (p, sm)
val (t, sm) = cifyTyp (t, sm)
in
((x, p, t), sm)
end) sm xps
in
((L'.PRecord xps, loc), sm)
end
| L.PNone t =>
let
val (t, sm) = cifyTyp (t, sm)
in
((L'.PNone t, loc), sm)
end
| L.PSome (t, p) =>
let
val (t, sm) = cifyTyp (t, sm)
val (p, sm) = cifyPat (p, sm)
in
((L'.PSome (t, p), loc), sm)
end
fun cifyExp (eAll as (e, loc), sm) =
case e of
L.EPrim p => ((L'.EPrim p, loc), sm)
| L.ERel n => ((L'.ERel n, loc), sm)
| L.ENamed n => ((L'.ENamed n, loc), sm)
| L.ECon (dk, pc, eo) =>
let
val (eo, sm) =
case eo of
NONE => (NONE, sm)
| SOME e =>
let
val (e, sm) = cifyExp (e, sm)
in
(SOME e, sm)
end
val (pc, sm) = cifyPatCon (pc, sm)
in
((L'.ECon (dk, pc, eo), loc), sm)
end
| L.ENone t =>
let
val (t, sm) = cifyTyp (t, sm)
in
((L'.ENone t, loc), sm)
end
| L.ESome (t, e) =>
let
val (t, sm) = cifyTyp (t, sm)
val (e, sm) = cifyExp (e, sm)
in
((L'.ESome (t, e), loc), sm)
end
| L.EFfi mx => ((L'.EFfi mx, loc), sm)
| L.EFfiApp (m, x, es) =>
let
val (es, sm) = ListUtil.foldlMap cifyExp sm es
in
((L'.EFfiApp (m, x, es), loc), sm)
end
| L.EApp (e1, e2) =>
let
fun unravel (e, args) =
case e of
(L.EApp (e1, e2), _) => unravel (e1, e2 :: args)
| _ => (e, args)
val (f, es) = unravel (e1, [e2])
val (f, sm) = cifyExp (f, sm)
val (es, sm) = ListUtil.foldlMap cifyExp sm es
in
((L'.EApp (f, es), loc), sm)
end
| L.EAbs _ => (ErrorMsg.errorAt loc "Anonymous function remains at code generation";
Print.prefaces' [("Function", MonoPrint.p_exp MonoEnv.empty eAll)];
(dummye, sm))
| L.EUnop (s, e1) =>
let
val (e1, sm) = cifyExp (e1, sm)
in
((L'.EUnop (s, e1), loc), sm)
end
| L.EBinop (s, e1, e2) =>
let
val (e1, sm) = cifyExp (e1, sm)
val (e2, sm) = cifyExp (e2, sm)
in
((L'.EBinop (s, e1, e2), loc), sm)
end
| L.ERecord xes =>
let
val old_xts = map (fn (x, _, t) => (x, t)) xes
val (xets, sm) = ListUtil.foldlMap (fn ((x, e, t), sm) =>
let
val (e, sm) = cifyExp (e, sm)
val (t, sm) = cifyTyp (t, sm)
in
((x, e, t), sm)
end)
sm xes
val (sm, si) = Sm.find (sm, old_xts, map (fn (x, _, t) => (x, t)) xets)
val xes = map (fn (x, e, _) => (x, e)) xets
val xes = ListMergeSort.sort (fn ((x1, _), (x2, _)) => String.compare (x1, x2) = GREATER) xes
in
((L'.ERecord (si, xes), loc), sm)
end
| L.EField (e, x) =>
let
val (e, sm) = cifyExp (e, sm)
in
((L'.EField (e, x), loc), sm)
end
| L.ECase (e, pes, {disc, result}) =>
let
val (e, sm) = cifyExp (e, sm)
val (pes, sm) = ListUtil.foldlMap
(fn ((p, e), sm) =>
let
val (e, sm) = cifyExp (e, sm)
val (p, sm) = cifyPat (p, sm)
in
((p, e), sm)
end) sm pes
val (disc, sm) = cifyTyp (disc, sm)
val (result, sm) = cifyTyp (result, sm)
in
((L'.ECase (e, pes, {disc = disc, result = result}), loc), sm)
end
| L.EError (e, t) =>
let
val (e, sm) = cifyExp (e, sm)
val (t, sm) = cifyTyp (t, sm)
in
((L'.EError (e, t), loc), sm)
end
| L.EReturnBlob {blob, mimeType, t} =>
let
val (blob, sm) = cifyExp (blob, sm)
val (mimeType, sm) = cifyExp (mimeType, sm)
val (t, sm) = cifyTyp (t, sm)
in
((L'.EReturnBlob {blob = blob, mimeType = mimeType, t = t}, loc), sm)
end
| L.ERedirect (e, t) =>
let
val (e, sm) = cifyExp (e, sm)
val (t, sm) = cifyTyp (t, sm)
in
((L'.ERedirect (e, t), loc), sm)
end
| L.EStrcat (e1, e2) =>
let
val (e1, sm) = cifyExp (e1, sm)
val (e2, sm) = cifyExp (e2, sm)
in
((L'.EFfiApp ("Basis", "strcat", [e1, e2]), loc), sm)
end
| L.EWrite e =>
let
val (e, sm) = cifyExp (e, sm)
in
((L'.EWrite e, loc), sm)
end
| L.ESeq (e1, e2) =>
let
val (e1, sm) = cifyExp (e1, sm)
val (e2, sm) = cifyExp (e2, sm)
in
((L'.ESeq (e1, e2), loc), sm)
end
| L.ELet (x, t, e1, e2) =>
let
val (t, sm) = cifyTyp (t, sm)
val (e1, sm) = cifyExp (e1, sm)
val (e2, sm) = cifyExp (e2, sm)
in
((L'.ELet (x, t, e1, e2), loc), sm)
end
| L.EClosure _ => (ErrorMsg.errorAt loc "Nested closure remains in code generation";
(dummye, sm))
| L.EQuery {exps, tables, state, query, body, initial} =>
let
val (exps', sm) = ListUtil.foldlMap (fn ((x, t), sm) =>
let
val (t, sm) = cifyTyp (t, sm)
in
((x, t), sm)
end) sm exps
val (tables', sm) = ListUtil.foldlMap (fn ((x, xts), sm) =>
let
val (xts, sm) = ListUtil.foldlMap
(fn ((x, t), sm) =>
let
val (t, sm) = cifyTyp (t, sm)
in
((x, t), sm)
end) sm xts
in
((x, xts), sm)
end) sm tables
val row = exps @ map (fn (x, xts) => (x, (L.TRecord xts, loc))) tables
val row = ListMergeSort.sort (fn ((x, _), (y, _)) => String.compare (x, y) = GREATER) row
val (tableRows, sm) = ListUtil.foldlMap (fn (((x, xts), (_, xts')), sm) =>
let
val (sm, rnum) = Sm.find (sm, xts, xts')
in
((x, rnum), sm)
end)
sm (ListPair.zip (tables, tables'))
val row' = exps' @ map (fn (x, n) => (x, (L'.TRecord n, loc))) tableRows
val row' = ListMergeSort.sort (fn ((x, _), (y, _)) => String.compare (x, y) = GREATER) row'
val (sm, rnum) = Sm.find (sm, row, row')
val (state, sm) = cifyTyp (state, sm)
val (query, sm) = cifyExp (query, sm)
val (body, sm) = cifyExp (body, sm)
val (initial, sm) = cifyExp (initial, sm)
in
((L'.EQuery {exps = exps', tables = tables', rnum = rnum, state = state,
query = query, body = body, initial = initial, prepared = NONE}, loc), sm)
end
| L.EDml e =>
let
val (e, sm) = cifyExp (e, sm)
in
((L'.EDml {dml = e, prepared = NONE}, loc), sm)
end
| L.ENextval e =>
let
val (e, sm) = cifyExp (e, sm)
in
((L'.ENextval {seq = e, prepared = NONE}, loc), sm)
end
| L.ESetval (e1, e2) =>
let
val (e1, sm) = cifyExp (e1, sm)
val (e2, sm) = cifyExp (e2, sm)
in
((L'.ESetval {seq = e1, count = e2}, loc), sm)
end
| L.EUnurlify (e, t) =>
let
val (e, sm) = cifyExp (e, sm)
val (t, sm) = cifyTyp (t, sm)
in
((L'.EUnurlify (e, t), loc), sm)
end
| L.EJavaScript _ => raise Fail "Cjrize: EJavaScript remains"
| L.ESignalReturn _ => raise Fail "Cjrize: ESignalReturn remains"
| L.ESignalBind _ => raise Fail "Cjrize: ESignalBind remains"
| L.ESignalSource _ => raise Fail "Cjrize: ESignalSource remains"
| L.EServerCall _ => raise Fail "Cjrize EServerCall"
| L.ERecv _ => raise Fail "Cjrize ERecv"
| L.ESleep _ => raise Fail "Cjrize ESleep"
| L.ESpawn _ => raise Fail "Cjrize ESpawn"
fun cifyDecl ((d, loc), sm) =
case d of
L.DDatatype dts =>
let
val (dts, sm) = ListUtil.foldlMap
(fn ((x, n, xncs), sm) =>
let
val dk = ElabUtil.classifyDatatype xncs
val (xncs, sm) = ListUtil.foldlMap (fn ((x, n, to), sm) =>
case to of
NONE => ((x, n, NONE), sm)
| SOME t =>
let
val (t, sm) = cifyTyp (t, sm)
in
((x, n, SOME t), sm)
end) sm xncs
in
((dk, x, n, xncs), sm)
end)
sm dts
in
(SOME (L'.DDatatype dts, loc), NONE, sm)
end
| L.DVal (x, n, t, e, _) =>
let
val (t, sm) = cifyTyp (t, sm)
val (d, sm) = case #1 t of
L'.TFun _ =>
let
fun unravel (tAll as (t, _), eAll as (e, _)) =
case (t, e) of
(L'.TFun (dom, ran), L.EAbs (ax, _, _, e)) =>
let
val (args, t, e) = unravel (ran, e)
in
((ax, dom) :: args, t, e)
end
| (L'.TFun (dom, ran), _) =>
let
val e = MonoEnv.liftExpInExp 0 eAll
val e = (L.EApp (e, (L.ERel 0, loc)), loc)
val (args, t, e) = unravel (ran, e)
in
(("x", dom) :: args, t, e)
end
| _ => ([], tAll, eAll)
val (args, ran, e) = unravel (t, e)
val (e, sm) = cifyExp (e, sm)
in
(L'.DFun (x, n, args, ran, e), sm)
end
| _ =>
let
val (e, sm) = cifyExp (e, sm)
in
(L'.DVal (x, n, t, e), sm)
end
in
(SOME (d, loc), NONE, sm)
end
| L.DValRec vis =>
let
val (vis, sm) = ListUtil.foldlMap
(fn ((x, n, t, e, _), sm) =>
let
val (t, sm) = cifyTyp (t, sm)
fun unravel (tAll as (t, _), eAll as (e, _)) =
case (t, e) of
(L'.TFun (dom, ran), L.EAbs (ax, _, _, e)) =>
let
val (args, t, e) = unravel (ran, e)
in
((ax, dom) :: args, t, e)
end
| (L'.TFun _, _) =>
(ErrorMsg.errorAt loc "Function isn't explicit at code generation";
([], tAll, eAll))
| _ => ([], tAll, eAll)
val (args, ran, e) = unravel (t, e)
val (e, sm) = cifyExp (e, sm)
in
((x, n, args, ran, e), sm)
end)
sm vis
in
(SOME (L'.DFunRec vis, loc), NONE, sm)
end
| L.DExport (ek, s, n, ts, t, b) =>
let
val (ts, sm) = ListUtil.foldlMap cifyTyp sm ts
val (t, sm) = cifyTyp (t, sm)
in
(NONE, SOME (ek, "/" ^ s, n, ts, t, L'.ServerAndPullAndPush, b), sm)
end
| L.DTable (s, xts, pe, ce) =>
let
val (xts, sm) = ListUtil.foldlMap (fn ((x, t), sm) =>
let
val (t, sm) = cifyTyp (t, sm)
in
((x, t), sm)
end) sm xts
fun flatten e =
case #1 e of
L.ERecord [] => []
| L.ERecord [(x, (L.EPrim (Prim.String v), _), _)] => [(x, v)]
| L.EStrcat (e1, e2) => flatten e1 @ flatten e2
| _ => (ErrorMsg.errorAt loc "Constraint has not been fully determined";
Print.prefaces "Undetermined constraint"
[("e", MonoPrint.p_exp MonoEnv.empty e)];
[])
val pe = case #1 pe of
L.EPrim (Prim.String s) => s
| _ => (ErrorMsg.errorAt loc "Primary key has not been fully determined";
Print.prefaces "Undetermined constraint"
[("e", MonoPrint.p_exp MonoEnv.empty pe)];
"")
in
(SOME (L'.DTable (s, xts, pe, flatten ce), loc), NONE, sm)
end
| L.DSequence s =>
(SOME (L'.DSequence s, loc), NONE, sm)
| L.DView (s, xts, e) =>
let
val (xts, sm) = ListUtil.foldlMap (fn ((x, t), sm) =>
let
val (t, sm) = cifyTyp (t, sm)
in
((x, t), sm)
end) sm xts
fun flatten e =
case #1 e of
L.ERecord [] => []
| L.ERecord [(x, (L.EPrim (Prim.String v), _), _)] => [(x, v)]
| L.EStrcat (e1, e2) => flatten e1 @ flatten e2
| _ => (ErrorMsg.errorAt loc "Constraint has not been fully determined";
Print.prefaces "Undetermined constraint"
[("e", MonoPrint.p_exp MonoEnv.empty e)];
[])
val e = case #1 e of
L.EPrim (Prim.String s) => s
| _ => (ErrorMsg.errorAt loc "VIEW query has not been fully determined";
Print.prefaces "Undetermined VIEW query"
[("e", MonoPrint.p_exp MonoEnv.empty e)];
"")
in
(SOME (L'.DView (s, xts, e), loc), NONE, sm)
end
| L.DDatabase s => (SOME (L'.DDatabase s, loc), NONE, sm)
| L.DJavaScript s => (SOME (L'.DJavaScript s, loc), NONE, sm)
| L.DCookie args => (SOME (L'.DCookie args, loc), NONE, sm)
| L.DStyle args => (SOME (L'.DStyle args, loc), NONE, sm)
| L.DTask (e1, e2) =>
(case #1 e2 of
L.EAbs (_, _, _, e) =>
let
val tk = case #1 e1 of
L.EFfi ("Basis", "initialize") => L'.Initialize
| _ => (ErrorMsg.errorAt loc "Task kind not fully determined";
L'.Initialize)
val (e, sm) = cifyExp (e, sm)
in
(SOME (L'.DTask (tk, e), loc), NONE, sm)
end
| _ => (ErrorMsg.errorAt loc "Initializer has not been fully determined";
(NONE, NONE, sm)))
fun cjrize ds =
let
val (dsF, ds, ps, sm) = foldl (fn (d, (dsF, ds, ps, sm)) =>
let
val (dop, pop, sm) = cifyDecl (d, sm)
val dsF = case dop of
SOME (L'.DDatatype dts, loc) =>
map (fn (dk, x, n, _) =>
(L'.DDatatypeForward (dk, x, n), loc)) dts @ dsF
| _ => dsF
val dsF = map (fn v => (L'.DStruct v, ErrorMsg.dummySpan)) (Sm.declares sm)
@ dsF
val (dsF, ds) = case dop of
NONE => (dsF, ds)
| SOME (d as (L'.DDatatype _, loc)) =>
(d :: dsF, ds)
| SOME d => (dsF, d :: ds)
val ps = case pop of
NONE => ps
| SOME p => p :: ps
in
(dsF, ds, ps, Sm.clearDeclares sm)
end)
([], [], [], Sm.empty) ds
in
(List.revAppend (dsF, rev ds),
ps)
end
end
|