aboutsummaryrefslogtreecommitdiffstats
path: root/lib/hipe/cerl
diff options
context:
space:
mode:
Diffstat (limited to 'lib/hipe/cerl')
-rw-r--r--lib/hipe/cerl/erl_bif_types.erl113
-rw-r--r--lib/hipe/cerl/erl_types.erl95
2 files changed, 206 insertions, 2 deletions
diff --git a/lib/hipe/cerl/erl_bif_types.erl b/lib/hipe/cerl/erl_bif_types.erl
index 7684dc4a81..9453ca6c6f 100644
--- a/lib/hipe/cerl/erl_bif_types.erl
+++ b/lib/hipe/cerl/erl_bif_types.erl
@@ -115,7 +115,16 @@
t_tuple_size/2,
t_tuple_subtypes/2,
t_is_map/2,
- t_map/0
+ t_map/0,
+ t_map/3,
+ t_map_def_key/2,
+ t_map_def_val/2,
+ t_map_get/3,
+ t_map_is_key/3,
+ t_map_entries/2,
+ t_map_put/3,
+ t_map_update/3,
+ map_pairwise_merge/3
]).
-ifdef(DO_ERL_BIF_TYPES_TEST).
@@ -755,7 +764,7 @@ type(erlang, length, 1, Xs, Opaques) ->
strict(erlang, length, 1, Xs, fun (_) -> t_non_neg_fixnum() end, Opaques);
%% Guard bif, needs to be here.
type(erlang, map_size, 1, Xs, Opaques) ->
- strict(erlang, map_size, 1, Xs, fun (_) -> t_non_neg_integer() end, Opaques);
+ type(maps, size, 1, Xs, Opaques);
type(erlang, make_fun, 3, Xs, Opaques) ->
strict(erlang, make_fun, 3, Xs,
fun ([_, _, Arity]) ->
@@ -1645,6 +1654,89 @@ type(lists, zipwith3, 4, Xs, Opaques) ->
fun ([F,_As,_Bs,_Cs]) -> t_sup(t_list(t_fun_range(F, Opaques)),
t_nil()) end, Opaques);
+%%-- maps ---------------------------------------------------------------------
+type(maps, from_list, 1, Xs, Opaques) ->
+ strict(maps, from_list, 1, Xs,
+ fun ([List]) ->
+ case t_is_nil(List, Opaques) of
+ true -> t_from_term(#{});
+ false ->
+ T = t_list_elements(List, Opaques),
+ case t_tuple_subtypes(T, Opaques) of
+ unknown -> t_map();
+ Stypes when length(Stypes) >= 1 ->
+ t_sup([begin
+ [K, V] = t_tuple_args(Args, Opaques),
+ t_map([], K, V)
+ end || Args <- Stypes])
+ end
+ end
+ end, Opaques);
+type(maps, get, 2, Xs, Opaques) ->
+ strict(maps, get, 2, Xs,
+ fun ([Key, Map]) ->
+ t_map_get(Key, Map, Opaques)
+ end, Opaques);
+type(maps, is_key, 2, Xs, Opaques) ->
+ strict(maps, is_key, 2, Xs,
+ fun ([Key, Map]) ->
+ t_map_is_key(Key, Map, Opaques)
+ end, Opaques);
+type(maps, merge, 2, Xs, Opaques) ->
+ strict(maps, merge, 2, Xs,
+ fun ([MapA, MapB]) ->
+ ADefK = t_map_def_key(MapA, Opaques),
+ BDefK = t_map_def_key(MapB, Opaques),
+ ADefV = t_map_def_val(MapA, Opaques),
+ BDefV = t_map_def_val(MapB, Opaques),
+ t_map(map_pairwise_merge(
+ fun(K, _, _, mandatory, V) -> {K, mandatory, V};
+ (K, MNess, VA, optional, VB) -> {K, MNess, t_sup(VA,VB)}
+ end, MapA, MapB),
+ t_sup(ADefK, BDefK), t_sup(ADefV, BDefV))
+ end, Opaques);
+type(maps, put, 3, Xs, Opaques) ->
+ strict(maps, put, 3, Xs,
+ fun ([Key, Value, Map]) ->
+ t_map_put({Key, Value}, Map, Opaques)
+ end, Opaques);
+type(maps, size, 1, Xs, Opaques) ->
+ strict(maps, size, 1, Xs,
+ fun ([Map]) ->
+ Mand = [E || E={_,mandatory,_} <- t_map_entries(Map, Opaques)],
+ LowerBound = length(Mand),
+ case t_is_none(t_map_def_key(Map, Opaques)) of
+ false -> t_from_range(LowerBound, pos_inf);
+ true ->
+ Opt = [E || E={_,optional,_} <- t_map_entries(Map, Opaques)],
+ UpperBound = LowerBound + length(Opt),
+ t_from_range(LowerBound, UpperBound)
+ end
+ end, Opaques);
+type(maps, to_list, 1, Xs, Opaques) ->
+ strict(maps, to_list, 1, Xs,
+ fun ([Map]) ->
+ DefK = t_map_def_key(Map, Opaques),
+ DefV = t_map_def_val(Map, Opaques),
+ Pairs = t_map_entries(Map, Opaques),
+ EType = lists:foldl(
+ fun({K,_,V},EType0) ->
+ case t_is_none(V) of
+ true -> t_subtract(EType0, t_tuple([K,t_any()]));
+ false -> t_sup(EType0, t_tuple([K,V]))
+ end
+ end, t_tuple([DefK, DefV]), Pairs),
+ case t_is_none(EType) of
+ true -> t_nil();
+ false -> t_list(EType)
+ end
+ end, Opaques);
+type(maps, update, 3, Xs, Opaques) ->
+ strict(maps, update, 3, Xs,
+ fun ([Key, Value, Map]) ->
+ t_map_update({Key, Value}, Map, Opaques)
+ end, Opaques);
+
%%-----------------------------------------------------------------------------
type(M, F, A, Xs, _O) when is_atom(M), is_atom(F),
is_integer(A), 0 =< A, A =< 255 ->
@@ -2556,6 +2648,23 @@ arg_types(lists, zipwith, 3) ->
[t_fun([t_any(), t_any()], t_any()), t_list(), t_list()];
arg_types(lists, zipwith3, 4) ->
[t_fun([t_any(), t_any(), t_any()], t_any()), t_list(), t_list(), t_list()];
+%%------- maps ----------------------------------------------------------------
+arg_types(maps, from_list, 1) ->
+ [t_list(t_tuple(2))];
+arg_types(maps, get, 2) ->
+ [t_any(), t_map()];
+arg_types(maps, is_key, 2) ->
+ [t_any(), t_map()];
+arg_types(maps, merge, 2) ->
+ [t_map(), t_map()];
+arg_types(maps, put, 3) ->
+ [t_any(), t_any(), t_map()];
+arg_types(maps, size, 1) ->
+ [t_map()];
+arg_types(maps, to_list, 1) ->
+ [t_map()];
+arg_types(maps, update, 3) ->
+ [t_any(), t_any(), t_map()];
arg_types(M, F, A) when is_atom(M), is_atom(F),
is_integer(A), 0 =< A, A =< 255 ->
unknown. % safe approximation for all functions.
diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl
index 6c4386892d..ea69e54c83 100644
--- a/lib/hipe/cerl/erl_types.erl
+++ b/lib/hipe/cerl/erl_types.erl
@@ -158,6 +158,9 @@
t_map_entries/2, t_map_entries/1,
t_map_def_key/2, t_map_def_key/1,
t_map_def_val/2, t_map_def_val/1,
+ t_map_get/2, t_map_get/3,
+ t_map_is_key/2, t_map_is_key/3,
+ t_map_update/2, t_map_update/3,
t_map_put/2, t_map_put/3,
t_matchstate/0,
t_matchstate/2,
@@ -1851,6 +1854,93 @@ map_put({Key, Value}, ?map(Pairs,DefK,DefV), Opaques) ->
end
end.
+-spec t_map_update({erl_type(), erl_type()}, erl_type()) -> erl_type().
+
+t_map_update(KV, Map) ->
+ t_map_update(KV, Map, 'universe').
+
+-spec t_map_update({erl_type(), erl_type()}, erl_type(), opaques()) -> erl_type().
+
+t_map_update(_, ?none, _) -> ?none;
+t_map_update(KV={Key, _}, M, Opaques) ->
+ case t_is_subtype(t_atom('true'), t_map_is_key(Key, M, Opaques)) of
+ false -> ?none;
+ true -> t_map_put(KV, M, Opaques)
+ end.
+
+-spec t_map_get(erl_type(), erl_type()) -> erl_type().
+
+t_map_get(Key, Map) ->
+ t_map_get(Key, Map, 'universe').
+
+-spec t_map_get(erl_type(), erl_type(), opaques()) -> erl_type().
+
+t_map_get(Key, Map, Opaques) ->
+ do_opaque(Map, Opaques,
+ fun(UM) ->
+ do_opaque(Key, Opaques, fun(UK) -> map_get(UK, UM) end)
+ end).
+
+map_get(_, ?none) -> ?none;
+map_get(Key, ?map(Pairs, DefK, DefV)) ->
+ DefRes =
+ case t_do_overlap(DefK, Key) of
+ false -> t_none();
+ true -> DefV
+ end,
+ case t_is_singleton(Key) of
+ false ->
+ lists:foldl(fun({K, _, V}, Res) ->
+ case t_do_overlap(K, Key) of
+ false -> Res;
+ true -> t_sup(Res, V)
+ end
+ end, DefRes, Pairs);
+ true ->
+ case lists:keyfind(Key, 1, Pairs) of
+ false -> DefRes;
+ {_, _, ValType} -> ValType
+ end
+ end.
+
+-spec t_map_is_key(erl_type(), erl_type()) -> erl_type().
+
+t_map_is_key(Key, Map) ->
+ t_map_is_key(Key, Map, 'universe').
+
+-spec t_map_is_key(erl_type(), erl_type(), opaques()) -> erl_type().
+
+t_map_is_key(Key, Map, Opaques) ->
+ do_opaque(Map, Opaques,
+ fun(UM) ->
+ do_opaque(Key, Opaques, fun(UK) -> map_is_key(UK, UM) end)
+ end).
+
+map_is_key(_, ?none) -> ?none;
+map_is_key(Key, ?map(Pairs, DefK, _DefV)) ->
+ case t_is_singleton(Key) of
+ true ->
+ case lists:keyfind(Key, 1, Pairs) of
+ {Key, ?mand, _} -> t_atom(true);
+ {Key, ?opt, ?none} -> t_atom(false);
+ {Key, ?opt, _} -> t_boolean();
+ false ->
+ case t_do_overlap(DefK, Key) of
+ false -> t_atom(false);
+ true -> t_boolean()
+ end
+ end;
+ false ->
+ case t_do_overlap(DefK, Key)
+ orelse lists:any(fun({_,_,?none}) -> false;
+ ({K,_,_}) -> t_do_overlap(K, Key)
+ end, Pairs)
+ of
+ true -> t_boolean();
+ false -> t_atom(false)
+ end
+ end.
+
%%-----------------------------------------------------------------------------
%% Tuples
%%
@@ -3931,6 +4021,11 @@ subtype_is_equal(T1, T2) ->
t_is_instance(ConcreteType, Type) ->
t_is_subtype(ConcreteType, t_unopaque(Type)).
+-spec t_do_overlap(erl_type(), erl_type()) -> boolean().
+
+t_do_overlap(TypeA, TypeB) ->
+ not (t_is_none_or_unit(t_inf(TypeA, TypeB))).
+
-spec t_unopaque(erl_type()) -> erl_type().
t_unopaque(T) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 21:54:49 +0000