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-rw-r--r--src/cjrize.sml19
-rw-r--r--src/core_util.sml2
-rw-r--r--src/elab_util.sml21
-rw-r--r--src/especialize.sml149
-rw-r--r--src/expl_print.sml1
-rw-r--r--src/expl_util.sml2
-rw-r--r--src/mono_opt.sml15
-rw-r--r--src/mono_reduce.sig4
-rw-r--r--src/shake.sml28
-rw-r--r--src/sources6
-rw-r--r--src/termination.sml10
-rw-r--r--src/unnest.sml35
-rw-r--r--tests/blog.ur16
-rw-r--r--tests/blog.urp4
-rw-r--r--tests/blog.urs1
-rw-r--r--tests/nest.ur22
-rw-r--r--tests/nest2.ur15
-rw-r--r--tests/nest2.urp3
18 files changed, 268 insertions, 85 deletions
diff --git a/src/cjrize.sml b/src/cjrize.sml
index 05ceb0f9..db2bd48f 100644
--- a/src/cjrize.sml
+++ b/src/cjrize.sml
@@ -39,6 +39,7 @@ structure Sm :> sig
val find : t * (string * L.typ) list * (string * L'.typ) list -> t * int
val declares : t -> (int * (string * L'.typ) list) list
+ val clearDeclares : t -> t
end = struct
structure FM = BinaryMapFn(struct
@@ -61,6 +62,8 @@ fun find ((n, m, ds), xts, xts') =
fun declares (_, _, ds) = ds
+fun clearDeclares (n, m, _) = (n, m, [])
+
end
fun cifyTyp x =
@@ -520,23 +523,25 @@ fun cjrize ds =
val (dsF, ds, ps, sm) = foldl (fn (d, (dsF, ds, ps, sm)) =>
let
val (dop, pop, sm) = cifyDecl (d, sm)
+
val (dsF, ds) = case dop of
NONE => (dsF, ds)
- | SOME (d as (L'.DDatatype (dk, x, n, _), loc)) =>
- ((L'.DDatatypeForward (dk, x, n), loc) :: dsF,
- d :: ds)
+ | SOME (d as (L'.DDatatype _, loc)) =>
+ (d :: dsF, ds)
| SOME d => (dsF, d :: ds)
+
+ val dsF = map (fn v => (L'.DStruct v, ErrorMsg.dummySpan)) (Sm.declares sm)
+ @ dsF
+
val ps = case pop of
NONE => ps
| SOME p => p :: ps
in
- (dsF, ds, ps, sm)
+ (dsF, ds, ps, Sm.clearDeclares sm)
end)
([], [], [], Sm.empty) ds
in
- (List.revAppend (dsF,
- List.revAppend (map (fn v => (L'.DStruct v, ErrorMsg.dummySpan)) (Sm.declares sm),
- rev ds)),
+ (List.revAppend (dsF, rev ds),
ps)
end
diff --git a/src/core_util.sml b/src/core_util.sml
index 2a690736..2450562f 100644
--- a/src/core_util.sml
+++ b/src/core_util.sml
@@ -492,7 +492,7 @@ fun mapfoldB {kind = fk, con = fc, exp = fe, bind} =
fn t' =>
S.bind2 (mfe ctx e1,
fn e1' =>
- S.map2 (mfe ctx e2,
+ S.map2 (mfe (bind (ctx, RelE (x, t'))) e2,
fn e2' =>
(ELet (x, t', e1', e2'), loc))))
diff --git a/src/elab_util.sml b/src/elab_util.sml
index 2e190d1e..57a94486 100644
--- a/src/elab_util.sml
+++ b/src/elab_util.sml
@@ -375,14 +375,19 @@ fun mapfoldB {kind = fk, con = fc, exp = fe, bind} =
| ELet (des, e) =>
let
val (des, ctx) = foldl (fn (ed, (des, ctx)) =>
- (S.bind2 (des,
- fn des' =>
- S.map2 (mfed ctx ed,
+ let
+ val ctx' =
+ case #1 ed of
+ EDVal (x, t, _) => bind (ctx, RelE (x, t))
+ | EDValRec vis =>
+ foldl (fn ((x, t, _), ctx) => bind (ctx, RelE (x, t))) ctx vis
+ in
+ (S.bind2 (des,
+ fn des' =>
+ S.map2 (mfed ctx ed,
fn ed' => des' @ [ed'])),
- case #1 ed of
- EDVal (x, t, _) => bind (ctx, RelE (x, t))
- | EDValRec vis =>
- foldl (fn ((x, t, _), env) => bind (ctx, RelE (x, t))) ctx vis))
+ ctx')
+ end)
(S.return2 [], ctx) des
in
S.bind2 (des,
@@ -400,7 +405,7 @@ fun mapfoldB {kind = fk, con = fc, exp = fe, bind} =
(EDVal vi', loc))
| EDValRec vis =>
let
- val ctx = foldl (fn ((x, t, _), env) => bind (ctx, RelE (x, t))) ctx vis
+ val ctx = foldl (fn ((x, t, _), ctx) => bind (ctx, RelE (x, t))) ctx vis
in
S.map2 (ListUtil.mapfold (mfvi ctx) vis,
fn vis' =>
diff --git a/src/especialize.sml b/src/especialize.sml
index b2f0c7e6..d5e93680 100644
--- a/src/especialize.sml
+++ b/src/especialize.sml
@@ -32,17 +32,43 @@ open Core
structure E = CoreEnv
structure U = CoreUtil
-structure ILK = struct
-type ord_key = int list
-val compare = Order.joinL Int.compare
+datatype skey =
+ Named of int
+ | App of skey * skey
+
+structure K = struct
+type ord_key = skey list
+fun compare' (k1, k2) =
+ case (k1, k2) of
+ (Named n1, Named n2) => Int.compare (n1, n2)
+ | (Named _, _) => LESS
+ | (_, Named _) => GREATER
+
+ | (App (x1, y1), App (x2, y2)) => Order.join (compare' (x1, x2), fn () => compare' (y1, y2))
+
+val compare = Order.joinL compare'
end
-structure ILM = BinaryMapFn(ILK)
+structure KM = BinaryMapFn(K)
structure IM = IntBinaryMap
+fun skeyIn (e, _) =
+ case e of
+ ENamed n => SOME (Named n)
+ | EApp (e1, e2) =>
+ (case (skeyIn e1, skeyIn e2) of
+ (SOME k1, SOME k2) => SOME (App (k1, k2))
+ | _ => NONE)
+ | _ => NONE
+
+fun skeyOut (k, loc) =
+ case k of
+ Named n => (ENamed n, loc)
+ | App (k1, k2) => (EApp (skeyOut (k1, loc), skeyOut (k2, loc)), loc)
+
type func = {
name : string,
- args : int ILM.map,
+ args : int KM.map,
body : exp,
typ : con,
tag : string
@@ -62,14 +88,21 @@ fun exp (e, st : state) =
fun getApp e =
case e of
ENamed f => SOME (f, [], [])
- | EApp (e1, (ENamed x, _)) =>
- (case getApp (#1 e1) of
- NONE => NONE
- | SOME (f, xs, xs') => SOME (f, xs @ [x], xs'))
| EApp (e1, e2) =>
(case getApp (#1 e1) of
NONE => NONE
- | SOME (f, xs, xs') => SOME (f, xs, xs' @ [e2]))
+ | SOME (f, xs, xs') =>
+ let
+ val k =
+ if List.null xs' then
+ skeyIn e2
+ else
+ NONE
+ in
+ case k of
+ NONE => SOME (f, xs, xs' @ [e2])
+ | SOME k => SOME (f, xs @ [k], xs')
+ end)
| _ => NONE
in
case getApp e of
@@ -77,21 +110,30 @@ fun exp (e, st : state) =
| SOME (_, [], _) => (e, st)
| SOME (f, xs, xs') =>
case IM.find (#funcs st, f) of
- NONE => (e, st)
+ NONE => ((*print "SHOT DOWN!\n";*) (e, st))
| SOME {name, args, body, typ, tag} =>
- case ILM.find (args, xs) of
- SOME f' => (#1 (foldl (fn (e, arg) => (EApp (e, arg), ErrorMsg.dummySpan))
- (ENamed f', ErrorMsg.dummySpan) xs'),
- st)
+ case KM.find (args, xs) of
+ SOME f' => ((*Print.prefaces "Pre-existing" [("e", CorePrint.p_exp CoreEnv.empty (e, ErrorMsg.dummySpan))];*)
+ (#1 (foldl (fn (e, arg) => (EApp (e, arg), ErrorMsg.dummySpan))
+ (ENamed f', ErrorMsg.dummySpan) xs'),
+ st))
| NONE =>
let
+ (*val () = Print.prefaces "New" [("e", CorePrint.p_exp CoreEnv.empty (e, ErrorMsg.dummySpan))]*)
+
fun subBody (body, typ, xs) =
case (#1 body, #1 typ, xs) of
(_, _, []) => SOME (body, typ)
| (EAbs (_, _, _, body'), TFun (_, typ'), x :: xs) =>
- subBody (E.subExpInExp (0, (ENamed x, ErrorMsg.dummySpan)) body',
- typ',
- xs)
+ let
+ val body'' = E.subExpInExp (0, skeyOut (x, #2 body)) body'
+ in
+ (*Print.prefaces "espec" [("body'", CorePrint.p_exp CoreEnv.empty body'),
+ ("body''", CorePrint.p_exp CoreEnv.empty body'')];*)
+ subBody (body'',
+ typ',
+ xs)
+ end
| _ => NONE
in
case subBody (body, typ, xs) of
@@ -99,8 +141,9 @@ fun exp (e, st : state) =
| SOME (body', typ') =>
let
val f' = #maxName st
+ (*val () = print ("f' = " ^ Int.toString f' ^ "\n")*)
val funcs = IM.insert (#funcs st, f, {name = name,
- args = ILM.insert (args, xs, f'),
+ args = KM.insert (args, xs, f'),
body = body,
typ = typ,
tag = tag})
@@ -128,10 +171,27 @@ fun decl (d, st) = (d, st)
val specDecl = U.Decl.foldMap {kind = kind, con = con, exp = exp, decl = decl}
-fun specialize file =
+fun specialize' file =
let
- fun doDecl (d, st) =
+ fun doDecl (d, (st : state, changed)) =
let
+ val funcs = #funcs st
+ val funcs =
+ case #1 d of
+ DValRec vis =>
+ foldl (fn ((x, n, c, e, tag), funcs) =>
+ IM.insert (funcs, n, {name = x,
+ args = KM.empty,
+ body = e,
+ typ = c,
+ tag = tag}))
+ funcs vis
+ | _ => funcs
+
+ val st = {maxName = #maxName st,
+ funcs = funcs,
+ decls = []}
+
val (d', st) = specDecl st d
val funcs = #funcs st
@@ -139,37 +199,42 @@ fun specialize file =
case #1 d of
DVal (x, n, c, e as (EAbs _, _), tag) =>
IM.insert (funcs, n, {name = x,
- args = ILM.empty,
+ args = KM.empty,
body = e,
typ = c,
tag = tag})
- | DValRec vis =>
- foldl (fn ((x, n, c, e, tag), funcs) =>
- IM.insert (funcs, n, {name = x,
- args = ILM.empty,
- body = e,
- typ = c,
- tag = tag}))
- funcs vis
| _ => funcs
- val ds =
+ val (changed, ds) =
case #decls st of
- [] => [d']
- | vis => [(DValRec vis, ErrorMsg.dummySpan), d']
+ [] => (changed, [d'])
+ | vis =>
+ (true, case d' of
+ (DValRec vis', _) => [(DValRec (vis @ vis'), ErrorMsg.dummySpan)]
+ | _ => [(DValRec vis, ErrorMsg.dummySpan), d'])
in
- (ds, {maxName = #maxName st,
- funcs = funcs,
- decls = []})
+ (ds, ({maxName = #maxName st,
+ funcs = funcs,
+ decls = []}, changed))
end
- val (ds, _) = ListUtil.foldlMapConcat doDecl
- {maxName = U.File.maxName file + 1,
- funcs = IM.empty,
- decls = []}
- file
+ val (ds, (_, changed)) = ListUtil.foldlMapConcat doDecl
+ ({maxName = U.File.maxName file + 1,
+ funcs = IM.empty,
+ decls = []}, false)
+ file
+ in
+ (changed, ds)
+ end
+
+fun specialize file =
+ let
+ val (changed, file) = specialize' file
in
- ds
+ if changed then
+ specialize file
+ else
+ file
end
diff --git a/src/expl_print.sml b/src/expl_print.sml
index b19a6eff..aecc3a84 100644
--- a/src/expl_print.sml
+++ b/src/expl_print.sml
@@ -370,6 +370,7 @@ fun p_exp' par env (e, loc) =
string x,
space,
string ":",
+ space,
p_con env t,
space,
string "=",
diff --git a/src/expl_util.sml b/src/expl_util.sml
index e12186b0..337ea8d6 100644
--- a/src/expl_util.sml
+++ b/src/expl_util.sml
@@ -331,7 +331,7 @@ fun mapfoldB {kind = fk, con = fc, exp = fe, bind} =
fn t' =>
S.bind2 (mfe ctx e1,
fn e1' =>
- S.map2 (mfe ctx e2,
+ S.map2 (mfe (bind (ctx, RelE (x, t))) e2,
fn e2' =>
(ELet (x, t', e1', e2'), loc))))
in
diff --git a/src/mono_opt.sml b/src/mono_opt.sml
index 3cf2bcd4..b22f053b 100644
--- a/src/mono_opt.sml
+++ b/src/mono_opt.sml
@@ -89,7 +89,7 @@ fun sqlifyFloat n = attrifyFloat n ^ "::float8"
fun sqlifyString s = "E'" ^ String.translate (fn #"'" => "\\'"
| ch => str ch)
(String.toString s) ^ "'::text"
-
+
fun exp e =
case e of
EPrim (Prim.String s) =>
@@ -287,6 +287,19 @@ fun exp e =
{disc = disc,
result = (TRecord [], loc)}), loc)
+ | EApp ((ECase (discE, pes, {disc, ...}), loc), arg as (ERecord [], _)) =>
+ let
+ fun doBody e =
+ case #1 e of
+ EAbs (_, _, _, body) => MonoReduce.subExpInExp (0, arg) body
+ | _ => (EApp (e, arg), loc)
+ in
+ optExp (ECase (discE,
+ map (fn (p, e) => (p, doBody e)) pes,
+ {disc = disc,
+ result = (TRecord [], loc)}), loc)
+ end
+
| EWrite (EQuery {exps, tables, state, query,
initial = (EPrim (Prim.String ""), _),
body = (EStrcat ((EPrim (Prim.String s), _),
diff --git a/src/mono_reduce.sig b/src/mono_reduce.sig
index 3769a0f5..2495c7f9 100644
--- a/src/mono_reduce.sig
+++ b/src/mono_reduce.sig
@@ -30,5 +30,7 @@
signature MONO_REDUCE = sig
val reduce : Mono.file -> Mono.file
-
+
+ val subExpInExp : int * Mono.exp -> Mono.exp -> Mono.exp
+
end
diff --git a/src/shake.sml b/src/shake.sml
index 38d72cc5..4ebd1b0b 100644
--- a/src/shake.sml
+++ b/src/shake.sml
@@ -55,14 +55,19 @@ fun shake file =
val (cdef, edef) = foldl (fn ((DCon (_, n, _, c), _), (cdef, edef)) => (IM.insert (cdef, n, [c]), edef)
| ((DDatatype (_, n, _, xncs), _), (cdef, edef)) =>
(IM.insert (cdef, n, List.mapPartial #3 xncs), edef)
- | ((DVal (_, n, t, e, _), _), (cdef, edef)) => (cdef, IM.insert (edef, n, (t, e)))
+ | ((DVal (_, n, t, e, _), _), (cdef, edef)) => (cdef, IM.insert (edef, n, ([], t, e)))
| ((DValRec vis, _), (cdef, edef)) =>
- (cdef, foldl (fn ((_, n, t, e, _), edef) => IM.insert (edef, n, (t, e))) edef vis)
+ let
+ val all_ns = map (fn (_, n, _, _, _) => n) vis
+ in
+ (cdef, foldl (fn ((_, n, t, e, _), edef) =>
+ IM.insert (edef, n, (all_ns, t, e))) edef vis)
+ end
| ((DExport _, _), acc) => acc
| ((DTable (_, n, c, _), _), (cdef, edef)) =>
- (cdef, IM.insert (edef, n, (c, dummye)))
+ (cdef, IM.insert (edef, n, ([], c, dummye)))
| ((DSequence (_, n, _), _), (cdef, edef)) =>
- (cdef, IM.insert (edef, n, (dummyt, dummye)))
+ (cdef, IM.insert (edef, n, ([], dummyt, dummye)))
| ((DDatabase _, _), acc) => acc)
(IM.empty, IM.empty) file
@@ -96,9 +101,15 @@ fun shake file =
val s' = {exp = IS.add (#exp s, n),
con = #con s}
in
+ (*print ("Need " ^ Int.toString n ^ "\n");*)
case IM.find (edef, n) of
NONE => s'
- | SOME (t, e) => shakeExp (shakeCon s' t) e
+ | SOME (ns, t, e) =>
+ let
+ val s' = shakeExp (shakeCon s' t) e
+ in
+ foldl (fn (n, s') => exp (ENamed n, s')) s' ns
+ end
end
| _ => s
@@ -109,7 +120,12 @@ fun shake file =
val s = foldl (fn (n, s) =>
case IM.find (edef, n) of
NONE => raise Fail "Shake: Couldn't find 'val'"
- | SOME (t, e) => shakeExp (shakeCon s t) e) s page_es
+ | SOME (ns, t, e) =>
+ let
+ val s = shakeExp (shakeCon s t) e
+ in
+ foldl (fn (n, s) => exp (ENamed n, s)) s ns
+ end) s page_es
val s = foldl (fn (c, s) => shakeCon s c) s table_cs
in
diff --git a/src/sources b/src/sources
index 984b5e23..504013d8 100644
--- a/src/sources
+++ b/src/sources
@@ -116,15 +116,15 @@ mono_print.sml
monoize.sig
monoize.sml
+mono_reduce.sig
+mono_reduce.sml
+
mono_opt.sig
mono_opt.sml
untangle.sig
untangle.sml
-mono_reduce.sig
-mono_reduce.sml
-
mono_shake.sig
mono_shake.sml
diff --git a/src/termination.sml b/src/termination.sml
index 6ed4d92f..2db5bb11 100644
--- a/src/termination.sml
+++ b/src/termination.sml
@@ -293,7 +293,15 @@ fun declOk' env (d, loc) =
| EUnif (ref (SOME e)) => exp parent (penv, calls) e
| EUnif (ref NONE) => (Rabble, calls)
- | ELet (_, e) => exp parent (penv, calls) e
+ | ELet (eds, e) =>
+ let
+ fun extPenv ((ed, _), penv) =
+ case ed of
+ EDVal _ => Rabble :: penv
+ | EDValRec vis => foldl (fn (_, penv) => Rabble :: penv) penv vis
+ in
+ exp parent (foldl extPenv penv eds, calls) e
+ end
end
fun doVali (i, (_, f, _, e), calls) =
diff --git a/src/unnest.sml b/src/unnest.sml
index b305b467..f226a678 100644
--- a/src/unnest.sml
+++ b/src/unnest.sml
@@ -124,7 +124,7 @@ fun squishExp (nr, cfv, efv) =
case e of
ERel n =>
if n >= eb then
- ERel (positionOf (n - eb) efv + eb)
+ ERel (positionOf (n - eb) efv + eb)
else
e
| _ => e,
@@ -142,17 +142,21 @@ type state = {
fun kind (k, st) = (k, st)
-fun exp ((ks, ts), e, st : state) =
+fun exp ((ks, ts), e as old, st : state) =
case e of
ELet (eds, e) =>
let
+ (*val () = Print.prefaces "let" [("e", ElabPrint.p_exp E.empty (old, ErrorMsg.dummySpan))]*)
+
val doSubst = foldl (fn (p, e) => E.subExpInExp p e)
- val (eds, (maxName, ds, subs)) =
+ val (eds, (ts, maxName, ds, subs)) =
ListUtil.foldlMapConcat
- (fn (ed, (maxName, ds, subs)) =>
+ (fn (ed, (ts, maxName, ds, subs)) =>
case #1 ed of
- EDVal _ => ([ed], (maxName, ds, map (fn (n, e) => (n + 1, E.liftExpInExp 0 e)) subs))
+ EDVal (x, t, _) => ([ed],
+ ((x, t) :: ts,
+ maxName, ds, map (fn (n, e) => (n + 1, E.liftExpInExp 0 e)) subs))
| EDValRec vis =>
let
val loc = #2 ed
@@ -174,7 +178,10 @@ fun exp ((ks, ts), e, st : state) =
end)
(IS.empty, IS.empty) vis
- (*val () = print ("A: " ^ Int.toString (length ts) ^ ", " ^ Int.toString (length ks) ^ "\n")*)
+ (*val () = print ("A: " ^ Int.toString (length ts) ^ ", " ^ Int.toString (length ks) ^ "\n")
+ val () = app (fn (x, t) =>
+ Print.prefaces "Var" [("x", Print.PD.string x),
+ ("t", ElabPrint.p_con E.empty t)]) ts*)
val cfv = IS.foldl (fn (x, cfv) =>
let
(*val () = print (Int.toString x ^ "\n")*)
@@ -193,11 +200,11 @@ fun exp ((ks, ts), e, st : state) =
fun apply e =
let
- val e = IS.foldl (fn (x, e) =>
+ val e = IS.foldr (fn (x, e) =>
(ECApp (e, (CRel x, loc)), loc))
e cfv
in
- IS.foldl (fn (x, e) =>
+ IS.foldr (fn (x, e) =>
(EApp (e, (ERel x, loc)), loc))
e efv
end
@@ -237,9 +244,9 @@ fun exp ((ks, ts), e, st : state) =
val t = squishCon cfv t
(*val () = Print.prefaces "squishExp"
[("e", ElabPrint.p_exp E.empty e)]*)
- val e = squishExp (nr, cfv, efv) e
+ val e = squishExp (0(*nr*), cfv, efv) e
- val (e, t) = foldr (fn (ex, (e, t)) =>
+ val (e, t) = foldl (fn (ex, (e, t)) =>
let
val (name, t') = List.nth (ts, ex)
in
@@ -252,7 +259,7 @@ fun exp ((ks, ts), e, st : state) =
end)
(e, t) efv
- val (e, t) = foldr (fn (cx, (e, t)) =>
+ val (e, t) = foldl (fn (cx, (e, t)) =>
let
val (name, k) = List.nth (ks, cx)
in
@@ -272,10 +279,12 @@ fun exp ((ks, ts), e, st : state) =
vis
val d = (DValRec vis, #2 ed)
+
+ val ts = map (fn (x, _, t, _) => (x, t)) vis @ ts
in
- ([], (maxName, d :: ds, subs))
+ ([], (ts, maxName, d :: ds, subs))
end)
- (#maxName st, #decls st, []) eds
+ (ts, #maxName st, #decls st, []) eds
in
(ELet (eds, doSubst e subs),
{maxName = maxName,
diff --git a/tests/blog.ur b/tests/blog.ur
new file mode 100644
index 00000000..a3a06cb6
--- /dev/null
+++ b/tests/blog.ur
@@ -0,0 +1,16 @@
+fun main wrap =
+ let
+ fun edit id =
+ let
+ val r = 0
+ fun save () = <xml/>
+ in
+ wrap (save ())
+ end
+ in
+ edit 0
+ end
+
+fun wrap (inside : xbody) = return <xml/>
+
+val main () = main wrap
diff --git a/tests/blog.urp b/tests/blog.urp
new file mode 100644
index 00000000..a3f7bfaa
--- /dev/null
+++ b/tests/blog.urp
@@ -0,0 +1,4 @@
+debug
+database dbname=blog
+
+blog \ No newline at end of file
diff --git a/tests/blog.urs b/tests/blog.urs
new file mode 100644
index 00000000..6ac44e0b
--- /dev/null
+++ b/tests/blog.urs
@@ -0,0 +1 @@
+val main : unit -> transaction page
diff --git a/tests/nest.ur b/tests/nest.ur
index 8da50712..96bfdff4 100644
--- a/tests/nest.ur
+++ b/tests/nest.ur
@@ -45,7 +45,26 @@ fun f (x : int) =
page3
end
-datatype list t = Nil | Cons of t * list t
+fun add2 (x : int) (y : int) =
+ let
+ fun add3 () = x + y
+ in
+ add3
+ end
+
+fun add3 (x : int) =
+ let
+ fun add2 (y : int) =
+ let
+ fun add1 (z : int) = x + y + z
+ in
+ add1
+ end
+ in
+ add2
+ end
+
+(*datatype list t = Nil | Cons of t * list t
fun length (t ::: Type) (ls : list t) =
let
@@ -57,3 +76,4 @@ fun length (t ::: Type) (ls : list t) =
length' ls 0
end
+*)
diff --git a/tests/nest2.ur b/tests/nest2.ur
new file mode 100644
index 00000000..9a1d271a
--- /dev/null
+++ b/tests/nest2.ur
@@ -0,0 +1,15 @@
+fun wooho (wrap : xbody -> transaction page) =
+ let
+ fun subPage n =
+ let
+ fun subberPage () = wrap <xml>{[n]}</xml>
+ in
+ wrap <xml><a link={subberPage ()}>Go</a></xml>
+ end
+ in
+ subPage 0
+ end
+
+fun wrap x = return <xml><body>{x}</body></xml>
+
+fun main () = wooho wrap
diff --git a/tests/nest2.urp b/tests/nest2.urp
new file mode 100644
index 00000000..2668c65e
--- /dev/null
+++ b/tests/nest2.urp
@@ -0,0 +1,3 @@
+debug
+
+nest2
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-16 20:53:25 +0000