Mercurial > urweb
changeset 1355:ccf1d445b794
Hopeful fix to stop Especialize infinite looping
| author | Adam Chlipala <adam@chlipala.net> |
|---|---|
| date | Tue, 21 Dec 2010 13:57:12 -0500 |
| parents | 1b286f2309bc |
| children | 977901cb52cc |
| files | src/especialize.sml tests/each.ur tests/each.urp tests/each.urs |
| diffstat | 4 files changed, 40 insertions(+), 1 deletions(-) [+] |
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--- a/src/especialize.sml Mon Dec 20 19:28:41 2010 -0500 +++ b/src/especialize.sml Tue Dec 21 13:57:12 2010 -0500 @@ -324,13 +324,32 @@ val (fxs, xs, fvs, fin) = findSplit true (xs, typ, [], IS.empty, false) + fun valueish (e, _) = + case e of + EPrim _ => true + | ERel _ => true + | ENamed _ => true + | ECon (_, _, _, NONE) => true + | ECon (_, _, _, SOME e) => valueish e + | EFfi (_, _) => true + | EAbs _ => true + | ECAbs _ => true + | EKAbs _ => true + | ECApp (e, _) => valueish e + | EKApp (e, _) => valueish e + | ERecord xes => List.all (valueish o #2) xes + | _ => false + val vts = map (fn n => #2 (List.nth (env, n))) (IS.listItems fvs) val fxs' = map (squish (IS.listItems fvs)) fxs in - (*Print.preface ("fxs'", Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs');*) + (*Print.prefaces "Func" [("name", Print.PD.string name), + ("e", CorePrint.p_exp CoreEnv.empty e), + ("fxs'", Print.p_list (CorePrint.p_exp CoreEnv.empty) fxs')];*) if not fin orelse List.all (fn (ERel _, _) => true | _ => false) fxs' + orelse List.exists (not o valueish) fxs' orelse (IS.numItems fvs >= length fxs andalso IS.exists (fn n => functionInside (#2 (List.nth (env, n)))) fvs) then ((*Print.prefaces "No" [("name", Print.PD.string name),
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tests/each.ur Tue Dec 21 13:57:12 2010 -0500 @@ -0,0 +1,16 @@ +sequence s +table t : { Id : int, S1 : string, S2:string, S3:string, S4:string } + +fun each (n : int, (f : unit -> transaction unit)) = if n > 0 then f (); each ((n-1),f) else return () + +fun fill () = + dml (DELETE FROM t WHERE 1=1); + each (1,( fn () => + (nv <- nextval s; + (dml (INSERT INTO t (Id, S1, S2, S3, S4) VALUES ({[nv]}, {["S1"]}, {["S2"]}, {["S3"]}, {["S4"]})))) + )); + return <xml>done</xml> + +fun main () = return <xml><body> + <form><submit action={fill} value="fill"/></form> +</body></xml>