diff options
Diffstat (limited to 'lib/hipe/cerl/erl_types.erl')
-rw-r--r-- | lib/hipe/cerl/erl_types.erl | 62 |
1 files changed, 43 insertions, 19 deletions
diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl index 47b8dc766a..67661130a5 100644 --- a/lib/hipe/cerl/erl_types.erl +++ b/lib/hipe/cerl/erl_types.erl @@ -209,6 +209,7 @@ 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, @@ -2985,16 +2986,19 @@ 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) -> @@ -3005,19 +3009,21 @@ 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) -> @@ -3156,6 +3162,18 @@ 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 %% @@ -4469,7 +4487,9 @@ 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]) @@ -4483,6 +4503,10 @@ 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, |