aboutsummaryrefslogtreecommitdiffstats
path: root/lib/hipe/cerl/erl_types.erl
diff options
context:
space:
mode:
Diffstat (limited to 'lib/hipe/cerl/erl_types.erl')
-rw-r--r--lib/hipe/cerl/erl_types.erl201
1 files changed, 135 insertions, 66 deletions
diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl
index 32390045e3..4b2bec5fa8 100644
--- a/lib/hipe/cerl/erl_types.erl
+++ b/lib/hipe/cerl/erl_types.erl
@@ -72,7 +72,7 @@
t_contains_opaque/1, t_contains_opaque/2,
t_decorate_with_opaque/3,
t_elements/1,
- t_find_opaque_mismatch/2,
+ t_find_opaque_mismatch/3,
t_find_unknown_opaque/3,
t_fixnum/0,
t_map/2,
@@ -126,6 +126,8 @@
t_is_instance/2,
t_is_integer/1, t_is_integer/2,
t_is_list/1,
+ t_is_map/1,
+ t_is_map/2,
t_is_matchstate/1,
t_is_nil/1, t_is_nil/2,
t_is_non_neg_integer/1,
@@ -148,6 +150,8 @@
t_list/1,
t_list_elements/1, t_list_elements/2,
t_list_termination/1,
+ t_map/0,
+ t_map/1,
t_matchstate/0,
t_matchstate/2,
t_matchstate_present/1,
@@ -205,14 +209,11 @@
type_is_defined/4,
record_field_diffs_to_string/2,
subst_all_vars_to_any/1,
+ subst_all_remote/2,
lift_list_to_pos_empty/1,
is_opaque_type/2,
is_erl_type/1,
- atom_to_string/1,
-
- t_is_map/2,
- t_map/1,
- t_map/0
+ atom_to_string/1
]).
%%-define(DO_ERL_TYPES_TEST, true).
@@ -261,6 +262,8 @@
-define(TAG_IMMED1_SIZE, 4).
-define(BITS, (erlang:system_info(wordsize) * 8) - ?TAG_IMMED1_SIZE).
+-define(MAX_TUPLE_SIZE, (1 bsl 10)).
+
%%-----------------------------------------------------------------------------
%% Type tags and qualifiers
%%
@@ -498,9 +501,9 @@ t_contains_opaque(?int_range(_From, _To), _Opaques) -> false;
t_contains_opaque(?int_set(_Set), _Opaques) -> false;
t_contains_opaque(?list(Type, Tail, _), Opaques) ->
t_contains_opaque(Type, Opaques) orelse t_contains_opaque(Tail, Opaques);
-t_contains_opaque(?map(Pairs), Opaques) ->
- list_contains_opaque([V||{_,V}<-Pairs], Opaques) orelse
- list_contains_opaque([K||{K,_}<-Pairs], Opaques);
+t_contains_opaque(?map(_) = Map, Opaques) ->
+ list_contains_opaque(map_values(Map), Opaques) orelse
+ list_contains_opaque(map_keys(Map), Opaques);
t_contains_opaque(?matchstate(_P, _Slots), _Opaques) -> false;
t_contains_opaque(?nil, _Opaques) -> false;
t_contains_opaque(?number(_Set, _Tag), _Opaques) -> false;
@@ -529,39 +532,51 @@ list_contains_opaque(List, Opaques) ->
%% The first argument of the function is the pattern and its second
%% argument the type we are matching against the pattern.
--spec t_find_opaque_mismatch(erl_type(), erl_type()) -> 'error' | {'ok', erl_type(), erl_type()}.
+-spec t_find_opaque_mismatch(erl_type(), erl_type(), [erl_type()]) ->
+ 'error' | {'ok', erl_type(), erl_type()}.
-t_find_opaque_mismatch(T1, T2) ->
- t_find_opaque_mismatch(T1, T2, T2).
+t_find_opaque_mismatch(T1, T2, Opaques) ->
+ t_find_opaque_mismatch(T1, T2, T2, Opaques).
-t_find_opaque_mismatch(?any, _Type, _TopType) -> error;
-t_find_opaque_mismatch(?none, _Type, _TopType) -> error;
-t_find_opaque_mismatch(?list(T1, Tl1, _), ?list(T2, Tl2, _), TopType) ->
- t_find_opaque_mismatch_ordlists([T1, Tl1], [T2, Tl2], TopType);
-t_find_opaque_mismatch(_T1, ?opaque(_) = T2, TopType) -> {ok, TopType, T2};
-t_find_opaque_mismatch(?opaque(_) = T1, _T2, TopType) ->
+t_find_opaque_mismatch(?any, _Type, _TopType, _Opaques) -> error;
+t_find_opaque_mismatch(?none, _Type, _TopType, _Opaques) -> error;
+t_find_opaque_mismatch(?list(T1, Tl1, _), ?list(T2, Tl2, _), TopType, Opaques) ->
+ t_find_opaque_mismatch_ordlists([T1, Tl1], [T2, Tl2], TopType, Opaques);
+t_find_opaque_mismatch(T1, ?opaque(_) = T2, TopType, Opaques) ->
+ case is_opaque_type(T2, Opaques) of
+ false -> {ok, TopType, T2};
+ true ->
+ t_find_opaque_mismatch(T1, t_opaque_structure(T2), TopType, Opaques)
+ end;
+t_find_opaque_mismatch(?opaque(_) = T1, T2, TopType, Opaques) ->
%% The generated message is somewhat misleading:
- {ok, TopType, T1};
-t_find_opaque_mismatch(?product(T1), ?product(T2), TopType) ->
- t_find_opaque_mismatch_ordlists(T1, T2, TopType);
-t_find_opaque_mismatch(?tuple(T1, Arity, _), ?tuple(T2, Arity, _), TopType) ->
- t_find_opaque_mismatch_ordlists(T1, T2, TopType);
-t_find_opaque_mismatch(?tuple(_, _, _) = T1, ?tuple_set(_) = T2, TopType) ->
+ case is_opaque_type(T1, Opaques) of
+ false -> {ok, TopType, T1};
+ true ->
+ t_find_opaque_mismatch(t_opaque_structure(T1), T2, TopType, Opaques)
+ end;
+t_find_opaque_mismatch(?product(T1), ?product(T2), TopType, Opaques) ->
+ t_find_opaque_mismatch_ordlists(T1, T2, TopType, Opaques);
+t_find_opaque_mismatch(?tuple(T1, Arity, _), ?tuple(T2, Arity, _),
+ TopType, Opaques) ->
+ t_find_opaque_mismatch_ordlists(T1, T2, TopType, Opaques);
+t_find_opaque_mismatch(?tuple(_, _, _) = T1, ?tuple_set(_) = T2,
+ TopType, Opaques) ->
Tuples1 = t_tuple_subtypes(T1),
Tuples2 = t_tuple_subtypes(T2),
- t_find_opaque_mismatch_lists(Tuples1, Tuples2, TopType);
-t_find_opaque_mismatch(T1, ?union(U2), TopType) ->
- t_find_opaque_mismatch_lists([T1], U2, TopType);
-t_find_opaque_mismatch(_T1, _T2, _TopType) -> error.
+ t_find_opaque_mismatch_lists(Tuples1, Tuples2, TopType, Opaques);
+t_find_opaque_mismatch(T1, ?union(U2), TopType, Opaques) ->
+ t_find_opaque_mismatch_lists([T1], U2, TopType, Opaques);
+t_find_opaque_mismatch(_T1, _T2, _TopType, _Opaques) -> error.
-t_find_opaque_mismatch_ordlists(L1, L2, TopType) ->
+t_find_opaque_mismatch_ordlists(L1, L2, TopType, Opaques) ->
List = lists:zipwith(fun(T1, T2) ->
- t_find_opaque_mismatch(T1, T2, TopType)
+ t_find_opaque_mismatch(T1, T2, TopType, Opaques)
end, L1, L2),
t_find_opaque_mismatch_list(List).
-t_find_opaque_mismatch_lists(L1, L2, _TopType) ->
- List = [t_find_opaque_mismatch(T1, T2, T2) || T1 <- L1, T2 <- L2],
+t_find_opaque_mismatch_lists(L1, L2, _TopType, Opaques) ->
+ List = [t_find_opaque_mismatch(T1, T2, T2, Opaques) || T1 <- L1, T2 <- L2],
t_find_opaque_mismatch_list(List).
t_find_opaque_mismatch_list([]) -> error;
@@ -614,7 +629,7 @@ t_decorate_with_opaque(T1, T2, Opaques) ->
end
end.
-decorate(?none=Type, _, _Opaques) -> Type;
+decorate(Type, ?none, _Opaques) -> Type;
decorate(?function(Domain, Range), ?function(D, R), Opaques) ->
?function(decorate(Domain, D, Opaques), decorate(Range, R, Opaques));
decorate(?list(Types, Tail, Size), ?list(Ts, Tl, _Sz), Opaques) ->
@@ -680,6 +695,7 @@ union_decorate(U1, U2, Opaques) ->
List = [A,B,F,I,L,N,T,M,Map],
DecList = [Dec ||
E <- List,
+ not t_is_none(E),
not t_is_none(Dec = decorate(E, Opaque, Opaques))],
t_sup([Union|DecList]).
@@ -1421,7 +1437,6 @@ t_number_vals(Type) ->
t_number_vals(Type, Opaques) ->
do_opaque(Type, Opaques, fun number_vals/1).
-number_vals(?int_set(?any)) -> unknown;
number_vals(?int_set(Set)) -> set_to_list(Set);
number_vals(?number(_, _)) -> unknown;
number_vals(?opaque(_)) -> unknown;
@@ -1728,11 +1743,16 @@ lift_list_to_pos_empty(?list(Content, Termination, _)) ->
t_map() ->
?map([]).
--spec t_map([{erl_type(),erl_type()}]) -> erl_type().
+-spec t_map([{erl_type(), erl_type()}]) -> erl_type().
t_map(_) ->
?map([]).
+-spec t_is_map(erl_type()) -> boolean().
+
+t_is_map(Type) ->
+ t_is_map(Type, 'universe').
+
-spec t_is_map(erl_type(), opaques()) -> boolean().
t_is_map(Type, Opaques) ->
@@ -1741,7 +1761,6 @@ t_is_map(Type, Opaques) ->
is_map1(?map(_)) -> true;
is_map1(_) -> false.
-
%%-----------------------------------------------------------------------------
%% Tuples
%%
@@ -1753,6 +1772,8 @@ t_tuple() ->
-spec t_tuple(non_neg_integer() | [erl_type()]) -> erl_type().
+t_tuple(N) when is_integer(N), N > ?MAX_TUPLE_SIZE ->
+ t_tuple();
t_tuple(N) when is_integer(N) ->
?tuple(lists:duplicate(N, ?any), N, ?any);
t_tuple(List) ->
@@ -2089,6 +2110,8 @@ t_has_var(?tuple(Elements, _, _)) ->
t_has_var_list(Elements);
t_has_var(?tuple_set(_) = T) ->
t_has_var_list(t_tuple_subtypes(T));
+t_has_var(?map(_)= Map) ->
+ t_has_var_list(map_keys(Map)) orelse t_has_var_list(map_values(Map));
t_has_var(?opaque(Set)) ->
%% Assume variables in 'args' are also present i 'struct'
t_has_var_list([O#opaque.struct || O <- set_to_list(Set)]);
@@ -2116,21 +2139,28 @@ t_collect_vars(?function(Domain, Range), Acc) ->
t_collect_vars(?list(Contents, Termination, _), Acc) ->
ordsets:union(t_collect_vars(Contents, Acc), t_collect_vars(Termination, []));
t_collect_vars(?product(Types), Acc) ->
- lists:foldl(fun(T, TmpAcc) -> t_collect_vars(T, TmpAcc) end, Acc, Types);
+ t_collect_vars_list(Types, Acc);
t_collect_vars(?tuple(?any, ?any, ?any), Acc) ->
Acc;
t_collect_vars(?tuple(Types, _, _), Acc) ->
- lists:foldl(fun(T, TmpAcc) -> t_collect_vars(T, TmpAcc) end, Acc, Types);
+ t_collect_vars_list(Types, Acc);
t_collect_vars(?tuple_set(_) = TS, Acc) ->
- lists:foldl(fun(T, TmpAcc) -> t_collect_vars(T, TmpAcc) end, Acc,
- t_tuple_subtypes(TS));
+ t_collect_vars_list(t_tuple_subtypes(TS), Acc);
+t_collect_vars(?map(_) = Map, Acc0) ->
+ Acc = t_collect_vars_list(map_keys(Map), Acc0),
+ t_collect_vars_list(map_values(Map), Acc);
t_collect_vars(?opaque(Set), Acc) ->
%% Assume variables in 'args' are also present i 'struct'
- lists:foldl(fun(T, TmpAcc) -> t_collect_vars(T, TmpAcc) end, Acc,
- [O#opaque.struct || O <- set_to_list(Set)]);
+ t_collect_vars_list([O#opaque.struct || O <- set_to_list(Set)], Acc);
+t_collect_vars(?union(List), Acc) ->
+ t_collect_vars_list(List, Acc);
t_collect_vars(_, Acc) ->
Acc.
+t_collect_vars_list([T|Ts], Acc0) ->
+ Acc = t_collect_vars(T, Acc0),
+ t_collect_vars_list(Ts, Acc);
+t_collect_vars_list([], Acc) -> Acc.
%%=============================================================================
%%
@@ -2153,6 +2183,7 @@ t_from_term(T) when is_function(T) ->
{arity, Arity} = erlang:fun_info(T, arity),
t_fun(Arity, t_any());
t_from_term(T) when is_integer(T) -> t_integer(T);
+t_from_term(T) when is_map(T) -> t_map();
t_from_term(T) when is_pid(T) -> t_pid();
t_from_term(T) when is_port(T) -> t_port();
t_from_term(T) when is_reference(T) -> t_reference();
@@ -2555,7 +2586,7 @@ force_union(T = ?function(_, _)) -> ?function_union(T);
force_union(T = ?identifier(_)) -> ?identifier_union(T);
force_union(T = ?list(_, _, _)) -> ?list_union(T);
force_union(T = ?nil) -> ?list_union(T);
-force_union(T = ?number(_,_)) -> ?number_union(T);
+force_union(T = ?number(_, _)) -> ?number_union(T);
force_union(T = ?opaque(_)) -> ?opaque_union(T);
force_union(T = ?remote(_)) -> ?remote_union(T);
force_union(T = ?map(_)) -> ?map_union(T);
@@ -2970,16 +3001,19 @@ inf_union(U1, U2, Opaques) ->
List = [A,B,F,I,L,N,T,M,Map],
inf_union_collect(List, Opaque, InfFun, [], [])
end,
- O1 = OpaqueFun(U1, U2, fun(E, Opaque) -> t_inf(Opaque, E, Opaques) end),
- O2 = OpaqueFun(U2, U1, fun(E, Opaque) -> t_inf(E, Opaque, Opaques) end),
- Union = inf_union(U1, U2, 0, [], Opaques),
- t_sup([O1, O2, Union]).
+ {O1, ThrowList1} =
+ OpaqueFun(U1, U2, fun(E, Opaque) -> t_inf(Opaque, E, Opaques) end),
+ {O2, ThrowList2}
+ = OpaqueFun(U2, U1, fun(E, Opaque) -> t_inf(E, Opaque, Opaques) end),
+ {Union, ThrowList3} = inf_union(U1, U2, 0, [], [], Opaques),
+ ThrowList = lists:merge3(ThrowList1, ThrowList2, ThrowList3),
+ case t_sup([O1, O2, Union]) of
+ ?none when ThrowList =/= [] -> throw(hd(ThrowList));
+ Sup -> Sup
+ end.
inf_union_collect([], _Opaque, _InfFun, InfList, ThrowList) ->
- case t_sup(InfList) of
- ?none when ThrowList =/= [] -> throw(hd(lists:flatten(ThrowList)));
- Sup -> Sup
- end;
+ {t_sup(InfList), lists:usort(ThrowList)};
inf_union_collect([?none|L], Opaque, InfFun, InfList, ThrowList) ->
inf_union_collect(L, Opaque, InfFun, [?none|InfList], ThrowList);
inf_union_collect([E|L], Opaque, InfFun, InfList, ThrowList) ->
@@ -2990,19 +3024,21 @@ inf_union_collect([E|L], Opaque, InfFun, InfList, ThrowList) ->
inf_union_collect(L, Opaque, InfFun, InfList, [N|ThrowList])
end.
-inf_union([?none|Left1], [?none|Left2], N, Acc, Opaques) ->
- inf_union(Left1, Left2, N, [?none|Acc], Opaques);
-inf_union([T1|Left1], [T2|Left2], N, Acc, Opaques) ->
- case t_inf(T1, T2, Opaques) of
- ?none -> inf_union(Left1, Left2, N, [?none|Acc], Opaques);
- T -> inf_union(Left1, Left2, N+1, [T|Acc], Opaques)
+inf_union([?none|Left1], [?none|Left2], N, Acc, ThrowList, Opaques) ->
+ inf_union(Left1, Left2, N, [?none|Acc], ThrowList, Opaques);
+inf_union([T1|Left1], [T2|Left2], N, Acc, ThrowList, Opaques) ->
+ try t_inf(T1, T2, Opaques) of
+ ?none -> inf_union(Left1, Left2, N, [?none|Acc], ThrowList, Opaques);
+ T -> inf_union(Left1, Left2, N+1, [T|Acc], ThrowList, Opaques)
+ catch throw:N when is_integer(N) ->
+ inf_union(Left1, Left2, N, [?none|Acc], [N|ThrowList], Opaques)
end;
-inf_union([], [], N, Acc, _Opaques) ->
- if N =:= 0 -> ?none;
+inf_union([], [], N, Acc, ThrowList, _Opaques) ->
+ if N =:= 0 -> {?none, ThrowList};
N =:= 1 ->
[Type] = [T || T <- Acc, T =/= ?none],
- Type;
- N >= 2 -> ?union(lists:reverse(Acc))
+ {Type, ThrowList};
+ N >= 2 -> {?union(lists:reverse(Acc)), ThrowList}
end.
inf_bitstr(U1, B1, U2, B2) ->
@@ -3076,6 +3112,9 @@ t_subst_dict(?tuple(Elements, _Arity, _Tag), Dict) ->
t_tuple([t_subst_dict(E, Dict) || E <- Elements]);
t_subst_dict(?tuple_set(_) = TS, Dict) ->
t_sup([t_subst_dict(T, Dict) || T <- t_tuple_subtypes(TS)]);
+t_subst_dict(?map(Pairs), Dict) ->
+ ?map([{t_subst_dict(K, Dict), t_subst_dict(V, Dict)} ||
+ {K, V} <- Pairs]);
t_subst_dict(?opaque(Es), Dict) ->
List = [Opaque#opaque{args = [t_subst_dict(Arg, Dict) || Arg <- Args],
struct = t_subst_dict(S, Dict)} ||
@@ -3125,6 +3164,9 @@ t_subst_aux(?tuple(Elements, _Arity, _Tag), VarMap) ->
t_tuple([t_subst_aux(E, VarMap) || E <- Elements]);
t_subst_aux(?tuple_set(_) = TS, VarMap) ->
t_sup([t_subst_aux(T, VarMap) || T <- t_tuple_subtypes(TS)]);
+t_subst_aux(?map(Pairs), VarMap) ->
+ ?map([{t_subst_aux(K, VarMap), t_subst_aux(V, VarMap)} ||
+ {K, V} <- Pairs]);
t_subst_aux(?opaque(Es), VarMap) ->
List = [Opaque#opaque{args = [t_subst_aux(Arg, VarMap) || Arg <- Args],
struct = t_subst_aux(S, VarMap)} ||
@@ -3135,6 +3177,18 @@ t_subst_aux(?union(List), VarMap) ->
t_subst_aux(T, _VarMap) ->
T.
+-spec subst_all_remote(erl_type(), erl_type()) -> erl_type().
+
+subst_all_remote(Type0, Substitute) ->
+ Map =
+ fun(Type) ->
+ case erl_types:t_is_remote(Type) of
+ true -> Substitute;
+ false -> Type
+ end
+ end,
+ erl_types:t_map(Map, Type0).
+
%%-----------------------------------------------------------------------------
%% Unification
%%
@@ -3560,6 +3614,8 @@ t_subtract(?product(Elements1) = T1, ?product(Elements2)) ->
_ -> T1
end
end;
+t_subtract(?map(_) = T, _) -> % XXX: very crude; will probably need refinement
+ T;
t_subtract(?product(P1), _) ->
?product(P1);
t_subtract(T, ?product(_)) ->
@@ -3700,7 +3756,7 @@ t_unopaque(T) ->
t_unopaque(?opaque(_) = T, Opaques) ->
case Opaques =:= 'universe' orelse is_opaque_type(T, Opaques) of
true -> t_unopaque(t_opaque_structure(T), Opaques);
- false -> T % XXX: needs revision for parametric opaque data types
+ false -> T
end;
t_unopaque(?list(ElemT, Termination, Sz), Opaques) ->
?list(t_unopaque(ElemT, Opaques), t_unopaque(Termination, Opaques), Sz);
@@ -3720,11 +3776,12 @@ t_unopaque(?union([A,B,F,I,L,N,T,M,O,R,Map]), Opaques) ->
UL = t_unopaque(L, Opaques),
UT = t_unopaque(T, Opaques),
UF = t_unopaque(F, Opaques),
+ UMap = t_unopaque(Map, Opaques),
{OF,UO} = case t_unopaque(O, Opaques) of
?opaque(_) = O1 -> {O1, []};
Type -> {?none, [Type]}
end,
- t_sup([?union([A,B,UF,I,UL,N,UT,M,OF,R,Map])|UO]);
+ t_sup([?union([A,B,UF,I,UL,N,UT,M,OF,R,UMap])|UO]);
t_unopaque(T, _) ->
T.
@@ -4231,8 +4288,8 @@ t_from_form({type, _L, list, []}, _TypeNames, _RecDict, _VarDict) ->
t_from_form({type, _L, list, [Type]}, TypeNames, RecDict, VarDict) ->
{T, R} = t_from_form(Type, TypeNames, RecDict, VarDict),
{t_list(T), R};
-t_from_form({type, _L, map, _}, _TypeNames, _RecDict, _VarDict) ->
- {t_map([]), []};
+t_from_form({type, _L, map, _}, TypeNames, RecDict, VarDict) ->
+ builtin_type(map, t_map([]), TypeNames, RecDict, VarDict);
t_from_form({type, _L, mfa, []}, _TypeNames, _RecDict, _VarDict) ->
{t_mfa(), []};
t_from_form({type, _L, module, []}, _TypeNames, _RecDict, _VarDict) ->
@@ -4445,7 +4502,9 @@ get_mod_record([{FieldName, DeclType}|Left1],
[{FieldName, ModType}|Left2], Acc) ->
ModTypeNoVars = subst_all_vars_to_any(ModType),
case
- t_is_remote(ModTypeNoVars) orelse t_is_subtype(ModTypeNoVars, DeclType)
+ contains_remote(ModTypeNoVars)
+ orelse contains_remote(DeclType)
+ orelse t_is_subtype(ModTypeNoVars, DeclType)
of
false -> {error, FieldName};
true -> get_mod_record(Left1, Left2, [{FieldName, ModType}|Acc])
@@ -4459,6 +4518,10 @@ get_mod_record(DeclFields, [], Acc) ->
get_mod_record(_, [{FieldName2, _ModType}|_], _Acc) ->
{error, FieldName2}.
+contains_remote(Type) ->
+ TypeNoRemote = subst_all_remote(Type, t_none()),
+ not t_is_equal(Type, TypeNoRemote).
+
fields_from_form([], _TypeNames, _RecDict, _VarDict) ->
{[], []};
fields_from_form([{Name, Type}|Tail], TypeNames, RecDict,
@@ -4695,6 +4758,12 @@ is_same_type_name2(gb_trees, gb_tree, [], gb_trees, tree, [_, _]) -> true;
is_same_type_name2(gb_trees, tree, [_, _], gb_trees, gb_tree, []) -> true;
is_same_type_name2(_, _, _, _, _, _) -> false.
+map_keys(?map(Pairs)) ->
+ [K || {K, _} <- Pairs].
+
+map_values(?map(Pairs)) ->
+ [V || {_, V} <- Pairs].
+
%% -----------------------------------
%% Set
%%
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-29 13:19:32 +0000