Source file pattern_decompiler.ml
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let of_snapshot g =
let out, _ =
Tools.array_fold_lefti
(fun node (acc, pack) ag ->
let ra_type = ag.Snapshot.node_type in
let ar = Array.length ag.Snapshot.node_sites in
let ra_ports =
Array.make ar (Loc.annot_with_dummy LKappa.LNK_FREE, LKappa.Maintained)
in
let ra_ints = Array.make ar LKappa.I_ANY in
let pack' =
Tools.array_fold_lefti
(fun id ((dangling, free_id) as pack) p ->
let () =
match p.Snapshot.site_state with
| None -> ()
| Some i -> ra_ints.(id) <- LKappa.I_VAL_CHANGED (i, i)
in
match p.Snapshot.site_link with
| None -> pack
| Some s ->
(match Mods.Int2Map.pop s dangling with
| Some va, dangling' ->
let () =
ra_ports.(id) <-
( Loc.annot_with_dummy (LKappa.LNK_VALUE (va, (-1, -1))),
LKappa.Maintained )
in
dangling', free_id
| None, dangling' ->
let () =
ra_ports.(id) <-
( Loc.annot_with_dummy
(LKappa.LNK_VALUE (free_id, (-1, -1))),
LKappa.Maintained )
in
Mods.Int2Map.add (node, id) free_id dangling', succ free_id))
pack ag.Snapshot.node_sites
in
let ra =
{
LKappa.ra_type;
ra_erased = false;
ra_ports;
ra_ints;
ra_syntax = Some (Array.copy ra_ports, Array.copy ra_ints);
}
in
ra :: acc, pack')
([], (Mods.Int2Map.empty, 1))
g
in
out
let patterns_of_mixture ~debug_mode contact_map sigs pre_env e =
let snap = Edges.build_snapshot ~raw:false sigs e in
let pre_env', acc =
Snapshot.fold
(fun (cc_cache, acc) i m ->
match
Pattern_compiler.connected_components_sum_of_ambiguous_mixture
~debug_mode ~compile_mode_on:false contact_map cc_cache
(of_snapshot m)
with
| cc_cache', [ ([| (_, x) |], _) ] ->
cc_cache', Tools.recti (fun a _ -> x :: a) acc i
| _ -> assert false)
(pre_env, []) snap
in
pre_env', acc