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-rw-r--r--lib/hipe/cerl/erl_types.erl21
1 files changed, 20 insertions, 1 deletions
diff --git a/lib/hipe/cerl/erl_types.erl b/lib/hipe/cerl/erl_types.erl
index 6065b79664..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,
@@ -3161,6 +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
%%
@@ -4474,7 +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])
@@ -4488,6 +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,