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Merge branch 'sa/dialyzer-fix-r15b02' into maint

* sa/dialyzer-fix-r15b02:
  Fix a crash in race condition detection
  Remove old untested experimental extension
  Respect {plt_check,false} option when using dialyzer:run/1
  Fix handling of tuple set remote types appearing in tuple sets

OTP-10464
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2 parents 1a4e8f6 + 5e76603 commit ab151d0adebc31fbb74adffa69e4524f69dc8b62 @proxyles proxyles committed Oct 3, 2012
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19 lib/dialyzer/src/dialyzer.erl
@@ -162,14 +162,17 @@ run(Opts) ->
{error, Msg} ->
throw({dialyzer_error, Msg});
OptsRecord ->
- case cl_check_init(OptsRecord) of
- {ok, ?RET_NOTHING_SUSPICIOUS} ->
- case dialyzer_cl:start(OptsRecord) of
- {?RET_DISCREPANCIES, Warnings} -> Warnings;
- {?RET_NOTHING_SUSPICIOUS, []} -> []
- end;
- {error, ErrorMsg1} ->
- throw({dialyzer_error, ErrorMsg1})
+ case OptsRecord#options.check_plt of
+ true ->
+ case cl_check_init(OptsRecord) of
+ {ok, ?RET_NOTHING_SUSPICIOUS} -> ok;
+ {error, ErrorMsg1} -> throw({dialyzer_error, ErrorMsg1})
+ end;
+ false -> ok
+ end,
+ case dialyzer_cl:start(OptsRecord) of
+ {?RET_DISCREPANCIES, Warnings} -> Warnings;
+ {?RET_NOTHING_SUSPICIOUS, []} -> []
end
catch
throw:{dialyzer_error, ErrorMsg} ->
View
9 lib/dialyzer/src/dialyzer_analysis_callgraph.erl
@@ -326,13 +326,6 @@ cleanup_callgraph(#analysis_state{plt = InitPlt, parent = Parent,
ModuleDeps = dialyzer_callgraph:module_deps(Callgraph),
send_mod_deps(Parent, ModuleDeps),
{Callgraph1, ExtCalls} = dialyzer_callgraph:remove_external(Callgraph),
- RelevantAPICalls =
- dialyzer_behaviours:get_behaviour_apis([gen_server]),
- BehaviourAPICalls = [Call || {_From, To} = Call <- ExtCalls,
- lists:member(To, RelevantAPICalls)],
- Callgraph2 =
- dialyzer_callgraph:put_behaviour_api_calls(BehaviourAPICalls,
- Callgraph1),
ExtCalls1 = [Call || Call = {_From, To} <- ExtCalls,
not dialyzer_plt:contains_mfa(InitPlt, To)],
{BadCalls1, RealExtCalls} =
@@ -355,7 +348,7 @@ cleanup_callgraph(#analysis_state{plt = InitPlt, parent = Parent,
true ->
send_ext_calls(Parent, lists:usort([To || {_From, To} <- RealExtCalls]))
end,
- Callgraph2.
+ Callgraph1.
compile_src(File, Includes, Defines, Callgraph, CServer, UseContracts) ->
DefaultIncludes = default_includes(filename:dirname(File)),
View
106 lib/dialyzer/src/dialyzer_behaviours.erl
@@ -30,11 +30,9 @@
-module(dialyzer_behaviours).
--export([check_callbacks/5, get_behaviour_apis/1,
- translate_behaviour_api_call/5, translatable_behaviours/1,
- translate_callgraph/3]).
+-export([check_callbacks/5]).
--export_type([behaviour/0, behaviour_api_dict/0]).
+-export_type([behaviour/0]).
%%--------------------------------------------------------------------
@@ -224,103 +222,3 @@ get_line([]) -> -1.
get_file([{file, File}|_]) -> File;
get_file([_|Tail]) -> get_file(Tail).
-
-%%-----------------------------------------------------------------------------
-
--spec translatable_behaviours(cerl:c_module()) -> behaviour_api_dict().
-
-translatable_behaviours(Tree) ->
- Attrs = cerl:module_attrs(Tree),
- {Behaviours, _BehLines} = get_behaviours(Attrs),
- [{B, Calls} || B <- Behaviours, (Calls = behaviour_api_calls(B)) =/= []].
-
--spec get_behaviour_apis([behaviour()]) -> [mfa()].
-
-get_behaviour_apis(Behaviours) ->
- get_behaviour_apis(Behaviours, []).
-
--spec translate_behaviour_api_call(dialyzer_callgraph:mfa_or_funlbl(),
- [erl_types:erl_type()],
- [dialyzer_races:core_vars()],
- module(),
- behaviour_api_dict()) ->
- {dialyzer_callgraph:mfa_or_funlbl(),
- [erl_types:erl_type()],
- [dialyzer_races:core_vars()]}
- | 'plain_call'.
-
-translate_behaviour_api_call(_Fun, _ArgTypes, _Args, _Module, []) ->
- plain_call;
-translate_behaviour_api_call({Module, Fun, Arity}, ArgTypes, Args,
- CallbackModule, BehApiInfo) ->
- case lists:keyfind(Module, 1, BehApiInfo) of
- false -> plain_call;
- {Module, Calls} ->
- case lists:keyfind({Fun, Arity}, 1, Calls) of
- false -> plain_call;
- {{Fun, Arity}, {CFun, CArity, COrder}} ->
- {{CallbackModule, CFun, CArity},
- [nth_or_0(N, ArgTypes, erl_types:t_any()) || N <-COrder],
- [nth_or_0(N, Args, bypassed) || N <-COrder]}
- end
- end;
-translate_behaviour_api_call(_Fun, _ArgTypes, _Args, _Module, _BehApiInfo) ->
- plain_call.
-
--spec translate_callgraph(behaviour_api_dict(), atom(),
- dialyzer_callgraph:callgraph()) ->
- dialyzer_callgraph:callgraph().
-
-translate_callgraph([{Behaviour,_}|Behaviours], Module, Callgraph) ->
- UsedCalls = [Call || {_From, {M, _F, _A}} = Call <-
- dialyzer_callgraph:get_behaviour_api_calls(Callgraph),
- M =:= Behaviour],
- Calls = [{{Behaviour, API, Arity}, Callback} ||
- {{API, Arity}, Callback} <- behaviour_api_calls(Behaviour)],
- DirectCalls = [{From, {Module, Fun, Arity}} ||
- {From, To} <- UsedCalls,{API, {Fun, Arity, _Ord}} <- Calls,
- To =:= API],
- dialyzer_callgraph:add_edges(DirectCalls, Callgraph),
- translate_callgraph(Behaviours, Module, Callgraph);
-translate_callgraph([], _Module, Callgraph) ->
- Callgraph.
-
-get_behaviour_apis([], Acc) ->
- Acc;
-get_behaviour_apis([Behaviour | Rest], Acc) ->
- MFAs = [{Behaviour, Fun, Arity} ||
- {{Fun, Arity}, _} <- behaviour_api_calls(Behaviour)],
- get_behaviour_apis(Rest, MFAs ++ Acc).
-
-%------------------------------------------------------------------------------
-
-nth_or_0(0, _List, Zero) ->
- Zero;
-nth_or_0(N, List, _Zero) ->
- lists:nth(N, List).
-
-%------------------------------------------------------------------------------
-
--type behaviour_api_dict()::[{behaviour(), behaviour_api_info()}].
--type behaviour_api_info()::[{original_fun(), replacement_fun()}].
--type original_fun()::{atom(), arity()}.
--type replacement_fun()::{atom(), arity(), arg_list()}.
--type arg_list()::[byte()].
-
--spec behaviour_api_calls(behaviour()) -> behaviour_api_info().
-
-behaviour_api_calls(gen_server) ->
- [{{start_link, 3}, {init, 1, [2]}},
- {{start_link, 4}, {init, 1, [3]}},
- {{start, 3}, {init, 1, [2]}},
- {{start, 4}, {init, 1, [3]}},
- {{call, 2}, {handle_call, 3, [2, 0, 0]}},
- {{call, 3}, {handle_call, 3, [2, 0, 0]}},
- {{multi_call, 2}, {handle_call, 3, [2, 0, 0]}},
- {{multi_call, 3}, {handle_call, 3, [3, 0, 0]}},
- {{multi_call, 4}, {handle_call, 3, [3, 0, 0]}},
- {{cast, 2}, {handle_cast, 2, [2, 0]}},
- {{abcast, 2}, {handle_cast, 2, [2, 0]}},
- {{abcast, 3}, {handle_cast, 2, [3, 0]}}];
-behaviour_api_calls(_Other) ->
- [].
View
53 lib/dialyzer/src/dialyzer_dataflow.erl
@@ -91,9 +91,8 @@
warning_mode = false :: boolean(),
warnings = [] :: [dial_warning()],
work :: {[_], [_], set()},
- module :: module(),
- behaviour_api_dict = [] ::
- dialyzer_behaviours:behaviour_api_dict()}).
+ module :: module()
+ }).
-record(map, {dict = dict:new() :: dict(),
subst = dict:new() :: dict(),
@@ -135,38 +134,15 @@ get_fun_types(Tree, Plt, Callgraph, Records) ->
analyze_module(Tree, Plt, Callgraph, Records, GetWarnings) ->
debug_pp(Tree, false),
Module = cerl:atom_val(cerl:module_name(Tree)),
- RaceDetection = dialyzer_callgraph:get_race_detection(Callgraph),
- BehaviourTranslations =
- case RaceDetection of
- true -> dialyzer_behaviours:translatable_behaviours(Tree);
- false -> []
- end,
TopFun = cerl:ann_c_fun([{label, top}], [], Tree),
- State =
- state__new(Callgraph, TopFun, Plt, Module, Records, BehaviourTranslations),
+ State = state__new(Callgraph, TopFun, Plt, Module, Records),
State1 = state__race_analysis(not GetWarnings, State),
State2 = analyze_loop(State1),
case GetWarnings of
true ->
State3 = state__set_warning_mode(State2),
State4 = analyze_loop(State3),
-
- %% EXPERIMENTAL: Turn all behaviour API calls into calls to the
- %% respective callback module's functions.
-
- case BehaviourTranslations of
- [] -> dialyzer_races:race(State4);
- Behaviours ->
- Digraph = dialyzer_callgraph:get_digraph(State4#state.callgraph),
- TranslatedCallgraph =
- dialyzer_behaviours:translate_callgraph(Behaviours, Module,
- Callgraph),
- St =
- dialyzer_races:race(State4#state{callgraph = TranslatedCallgraph}),
- FinalCallgraph = dialyzer_callgraph:put_digraph(Digraph,
- St#state.callgraph),
- St#state{callgraph = FinalCallgraph}
- end;
+ dialyzer_races:race(State4);
false ->
State2
end.
@@ -530,21 +506,8 @@ handle_apply_or_call([{TypeOfApply, {Fun, Sig, Contr, LocalRet}}|Left],
Ann = cerl:get_ann(Tree),
File = get_file(Ann),
Line = abs(get_line(Ann)),
-
- %% EXPERIMENTAL: Turn a behaviour's API call into a call to the
- %% respective callback module's function.
-
- Module = State#state.module,
- BehApiDict = State#state.behaviour_api_dict,
- {RealFun, RealArgTypes, RealArgs} =
- case dialyzer_behaviours:translate_behaviour_api_call(Fun, ArgTypes,
- Args, Module,
- BehApiDict) of
- plain_call -> {Fun, ArgTypes, Args};
- BehaviourAPI -> BehaviourAPI
- end,
- dialyzer_races:store_race_call(RealFun, RealArgTypes, RealArgs,
- {File, Line}, State);
+ dialyzer_races:store_race_call(Fun, ArgTypes, Args,
+ {File, Line}, State);
false -> State
end,
FailedConj = any_none([RetWithoutLocal|NewArgTypes]),
@@ -2711,7 +2674,7 @@ determine_mode(Type, Opaques) ->
%%%
%%% ===========================================================================
-state__new(Callgraph, Tree, Plt, Module, Records, BehaviourTranslations) ->
+state__new(Callgraph, Tree, Plt, Module, Records) ->
Opaques = erl_types:module_builtin_opaques(Module) ++
erl_types:t_opaque_from_records(Records),
TreeMap = build_tree_map(Tree),
@@ -2725,7 +2688,7 @@ state__new(Callgraph, Tree, Plt, Module, Records, BehaviourTranslations) ->
#state{callgraph = Callgraph, envs = Env, fun_tab = FunTab, opaques = Opaques,
plt = Plt, races = dialyzer_races:new(), records = Records,
warning_mode = false, warnings = [], work = Work, tree_map = TreeMap,
- module = Module, behaviour_api_dict = BehaviourTranslations}.
+ module = Module}.
state__warning_mode(#state{warning_mode = WM}) ->
WM.
View
5 lib/dialyzer/src/dialyzer_races.erl
@@ -1758,7 +1758,10 @@ compare_var_list(Var, VarList, RaceVarMap) ->
ets_list_args(MaybeList) ->
case is_list(MaybeList) of
- true -> [ets_tuple_args(T) || T <- MaybeList];
+ true ->
+ try [ets_tuple_args(T) || T <- MaybeList]
+ catch _:_ -> [?no_label]
+ end;
false -> [ets_tuple_args(MaybeList)]
end.
View
2 lib/dialyzer/test/race_SUITE_data/results/ets_insert_args10
@@ -0,0 +1,2 @@
+
+ets_insert_args10.erl:9: The call ets:insert(T::'foo',[{'counter',number()},...]) might have an unintended effect due to a possible race condition caused by its combination with the ets:lookup(T::'foo','counter') call in ets_insert_args10.erl on line 8
View
19 lib/dialyzer/test/race_SUITE_data/src/ets_insert_args10.erl
@@ -0,0 +1,19 @@
+%% This tests the presence of possible races due to an ets:lookup/ets:insert
+%% combination. It takes into account the argument types of the calls.
+
+-module(ets_insert_args10).
+-export([start/0]).
+
+start() ->
+ F = fun(T) -> [{_, N}] = ets:lookup(T, counter),
+ ets:insert(T, [{counter, N+1}])
+ end,
+ io:format("Created ~w\n", [ets:new(foo, [named_table, public])]),
+ A = {counter, 0},
+ B = [],
+ ets:insert(foo, [A|B]),
+ io:format("Inserted ~w\n", [{counter, 0}]),
+ F(foo),
+ io:format("Update complete\n", []),
+ ObjectList = ets:lookup(foo, counter),
+ io:format("Counter: ~w\n", [ObjectList]).
View
2 lib/dialyzer/test/small_SUITE_data/results/contracts_with_subtypes
@@ -6,7 +6,7 @@ contracts_with_subtypes.erl:109: The call contracts_with_subtypes:rec_arg({'b',{
contracts_with_subtypes.erl:110: The call contracts_with_subtypes:rec_arg({'a',{'b',{'a','b'}}}) breaks the contract (Arg) -> 'ok' when is_subtype(Arg,{'a',A} | {'b',B}), is_subtype(A,'a' | {'b',B}), is_subtype(B,'b' | {'a',A})
contracts_with_subtypes.erl:111: The call contracts_with_subtypes:rec_arg({'b',{'a',{'b','a'}}}) breaks the contract (Arg) -> 'ok' when is_subtype(Arg,{'a',A} | {'b',B}), is_subtype(A,'a' | {'b',B}), is_subtype(B,'b' | {'a',A})
contracts_with_subtypes.erl:142: The pattern 1 can never match the type binary() | string()
-contracts_with_subtypes.erl:145: The pattern 'alpha' can never match the type {'ok',X} | {'ok',X,binary() | string()}
+contracts_with_subtypes.erl:145: The pattern 'alpha' can never match the type {'ok',_} | {'ok',_,binary() | string()}
contracts_with_subtypes.erl:147: The pattern 42 can never match the type {'ok',_} | {'ok',_,binary() | string()}
contracts_with_subtypes.erl:163: The pattern 'alpha' can never match the type {'ok',X}
contracts_with_subtypes.erl:165: The pattern 42 can never match the type {'ok',X}
View
8 lib/dialyzer/test/small_SUITE_data/src/remote_tuple_set.erl
@@ -0,0 +1,8 @@
+-module(remote_tuple_set).
+
+-export([parse_cidr/0]).
+
+-spec parse_cidr() -> {inet:address_family(),1,2} | {error}.
+
+parse_cidr() ->
+ {inet,1,2}.
View
8 lib/hipe/cerl/erl_types.erl
@@ -687,8 +687,8 @@ t_solve_remote(?tuple(Types, _Arity, _Tag), ET, R, C) ->
{RL, RR} = list_solve_remote(Types, ET, R, C),
{t_tuple(RL), RR};
t_solve_remote(?tuple_set(Set), ET, R, C) ->
- {NewSet, RR} = tuples_solve_remote(Set, ET, R, C),
- {?tuple_set(NewSet), RR};
+ {NewTuples, RR} = tuples_solve_remote(Set, ET, R, C),
+ {t_sup(NewTuples), RR};
t_solve_remote(?remote(Set), ET, R, C) ->
RemoteList = ordsets:to_list(Set),
{RL, RR} = list_solve_remote_type(RemoteList, ET, R, C),
@@ -788,10 +788,10 @@ opaques_solve_remote([#opaque{struct = Struct} = Remote|Tail], ET, R, C) ->
tuples_solve_remote([], _ET, _R, _C) ->
{[], []};
-tuples_solve_remote([{Sz, Tuples}|Tail], ET, R, C) ->
+tuples_solve_remote([{_Sz, Tuples}|Tail], ET, R, C) ->
{RL, RR1} = list_solve_remote(Tuples, ET, R, C),
{LSzTpls, RR2} = tuples_solve_remote(Tail, ET, R, C),
- {[{Sz, RL}|LSzTpls], RR1 ++ RR2}.
+ {RL ++ LSzTpls, RR1 ++ RR2}.
%%-----------------------------------------------------------------------------
%% Unit type. Signals non termination.

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