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-rw-r--r--lib/dialyzer/src/dialyzer_dataflow.erl51
-rw-r--r--lib/dialyzer/src/dialyzer_dep.erl6
2 files changed, 33 insertions, 24 deletions
diff --git a/lib/dialyzer/src/dialyzer_dataflow.erl b/lib/dialyzer/src/dialyzer_dataflow.erl
index 692684cd99..e0873b17f8 100644
--- a/lib/dialyzer/src/dialyzer_dataflow.erl
+++ b/lib/dialyzer/src/dialyzer_dataflow.erl
@@ -363,20 +363,24 @@ traverse_list([], Map, State, Acc) ->
handle_apply(Tree, Map, State) ->
Args = cerl:apply_args(Tree),
Op = cerl:apply_op(Tree),
- {State1, Map1, ArgTypes} = traverse_list(Args, Map, State),
- {State2, Map2, OpType} = traverse(Op, Map1, State1),
+ {State0, Map1, ArgTypes} = traverse_list(Args, Map, State),
+ {State1, Map2, OpType} = traverse(Op, Map1, State0),
case any_none(ArgTypes) of
true ->
- {State2, Map2, t_none()};
+ {State1, Map2, t_none()};
false ->
- {CallSitesKnown, FunList} =
- case state__lookup_call_site(Tree, State2) of
- error -> {false, []};
- {ok, [external]} -> {false, []};
- {ok, List} -> {true, List}
+ FunList =
+ case state__lookup_call_site(Tree, State) of
+ error -> [external]; %% so that we go directly in the fallback
+ {ok, List} -> List
end,
- case CallSitesKnown of
- false ->
+ FunInfoList = [{local, state__fun_info(Fun, State)} || Fun <- FunList],
+ case
+ handle_apply_or_call(FunInfoList, Args, ArgTypes, Map2, Tree, State1)
+ of
+ {had_external, State2} ->
+ %% Fallback: use whatever info we collected from traversing the op
+ %% instead of the result that has been generalized to t_any().
Arity = length(Args),
OpType1 = t_inf(OpType, t_fun(Arity, t_any())),
case t_is_none(OpType1) of
@@ -408,25 +412,23 @@ handle_apply(Tree, Map, State) ->
{State2, enter_type(Op, OpType1, Map3), Range}
end
end;
- true ->
- FunInfoList = [{local, state__fun_info(Fun, State)}
- || Fun <- FunList],
- handle_apply_or_call(FunInfoList, Args, ArgTypes, Map2, Tree, State1)
+ Normal -> Normal
end
end.
handle_apply_or_call(FunInfoList, Args, ArgTypes, Map, Tree, State) ->
None = t_none(),
handle_apply_or_call(FunInfoList, Args, ArgTypes, Map, Tree, State,
- [None || _ <- ArgTypes], None).
+ [None || _ <- ArgTypes], None, false).
handle_apply_or_call([{local, external}|Left], Args, ArgTypes, Map, Tree, State,
- _AccArgTypes, _AccRet) ->
+ _AccArgTypes, _AccRet, _HadExternal) ->
handle_apply_or_call(Left, Args, ArgTypes, Map, Tree, State,
- ArgTypes, t_any());
+ ArgTypes, t_any(), true);
handle_apply_or_call([{TypeOfApply, {Fun, Sig, Contr, LocalRet}}|Left],
Args, ArgTypes, Map, Tree,
- #state{opaques = Opaques} = State, AccArgTypes, AccRet) ->
+ #state{opaques = Opaques} = State,
+ AccArgTypes, AccRet, HadExternal) ->
Any = t_any(),
AnyArgs = [Any || _ <- Args],
GenSig = {AnyArgs, fun(_) -> t_any() end},
@@ -573,11 +575,16 @@ handle_apply_or_call([{TypeOfApply, {Fun, Sig, Contr, LocalRet}}|Left],
NewAccRet = t_sup(AccRet, TotalRet),
?debug("NewAccRet: ~s\n", [t_to_string(NewAccRet)]),
handle_apply_or_call(Left, Args, ArgTypes, Map, Tree,
- State3, NewAccArgTypes, NewAccRet);
+ State3, NewAccArgTypes, NewAccRet, HadExternal);
handle_apply_or_call([], Args, _ArgTypes, Map, _Tree, State,
- AccArgTypes, AccRet) ->
- NewMap = enter_type_lists(Args, AccArgTypes, Map),
- {State, NewMap, AccRet}.
+ AccArgTypes, AccRet, HadExternal) ->
+ case HadExternal of
+ false ->
+ NewMap = enter_type_lists(Args, AccArgTypes, Map),
+ {State, NewMap, AccRet};
+ true ->
+ {had_external, State}
+ end.
apply_fail_reason(FailedSig, FailedBif, FailedContract) ->
if
diff --git a/lib/dialyzer/src/dialyzer_dep.erl b/lib/dialyzer/src/dialyzer_dep.erl
index e3ece144c9..572e60278d 100644
--- a/lib/dialyzer/src/dialyzer_dep.erl
+++ b/lib/dialyzer/src/dialyzer_dep.erl
@@ -124,8 +124,10 @@ traverse(Tree, Out, State, CurrentFun) ->
TmpState = state__add_deps(Label, O1, State),
state__add_deps(CurrentFun, O2,TmpState)
end,
- {BodyFuns, State2} = traverse(Body, Out, State1,
- cerl_trees:get_label(Tree)),
+ Vars = cerl:fun_vars(Tree),
+ Out1 = bind_single(Vars, output(set__singleton(external)), Out),
+ {BodyFuns, State2} =
+ traverse(Body, Out1, State1, cerl_trees:get_label(Tree)),
{output(set__singleton(Label)), state__add_esc(BodyFuns, State2)};
'let' ->
Vars = cerl:let_vars(Tree),