diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/dialyzer/src/dialyzer_dataflow.erl | 27 | ||||
| -rw-r--r-- | lib/dialyzer/test/map_SUITE_data/results/map_in_guard2 | 4 | ||||
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/results/guards | 2 |
3 files changed, 21 insertions, 12 deletions
diff --git a/lib/dialyzer/src/dialyzer_dataflow.erl b/lib/dialyzer/src/dialyzer_dataflow.erl index 153842058c..639ed426df 100644 --- a/lib/dialyzer/src/dialyzer_dataflow.erl +++ b/lib/dialyzer/src/dialyzer_dataflow.erl @@ -2622,7 +2622,7 @@ bind_guard_case_clauses(Arg, Clauses, Map0, Env, Eval, State) -> Map = join_maps_begin(Map0), {GenMap, GenArgType} = bind_guard(Arg, Map, Env, dont_know, State), bind_guard_case_clauses(GenArgType, GenMap, Arg, Clauses1, Map, Env, Eval, - t_none(), [], State). + t_none(), [], [], State). filter_fail_clauses([Clause|Left]) -> case (cerl:clause_pats(Clause) =:= []) of @@ -2641,7 +2641,7 @@ filter_fail_clauses([]) -> []. bind_guard_case_clauses(GenArgType, GenMap, ArgExpr, [Clause|Left], - Map, Env, Eval, AccType, AccMaps, State) -> + Map, Env, Eval, AccType, AccMaps, Throws, State) -> Pats = cerl:clause_pats(Clause), {NewMap0, ArgType} = case Pats of @@ -2685,9 +2685,9 @@ bind_guard_case_clauses(GenArgType, GenMap, ArgExpr, [Clause|Left], case (NewMap1 =:= none) orelse t_is_none(GenArgType) of true -> bind_guard_case_clauses(NewGenArgType, GenMap, ArgExpr, Left, Map, Env, - Eval, AccType, AccMaps, State); + Eval, AccType, AccMaps, Throws, State); false -> - {NewAccType, NewAccMaps} = + {NewAccType, NewAccMaps, NewThrows} = try {NewMap2, GuardType} = bind_guard(Guard, NewMap1, Env, pos, State), case t_is_none(t_inf(t_atom(true), GuardType)) of @@ -2711,17 +2711,26 @@ bind_guard_case_clauses(GenArgType, GenMap, ArgExpr, [Clause|Left], dont_know -> ok end, - {t_sup(AccType, CType), [NewMap3|AccMaps]} + {t_sup(AccType, CType), [NewMap3|AccMaps], Throws} catch - throw:{fail, _What} -> {AccType, AccMaps} + throw:{fail, Reason} -> + Throws1 = case Reason of + none -> Throws; + _ -> Throws ++ [Reason] + end, + {AccType, AccMaps, Throws1} end, bind_guard_case_clauses(NewGenArgType, GenMap, ArgExpr, Left, Map, Env, - Eval, NewAccType, NewAccMaps, State) + Eval, NewAccType, NewAccMaps, NewThrows, State) end; bind_guard_case_clauses(_GenArgType, _GenMap, _ArgExpr, [], Map, _Env, _Eval, - AccType, AccMaps, _State) -> + AccType, AccMaps, Throws, _State) -> case t_is_none(AccType) of - true -> throw({fail, none}); + true -> + case Throws of + [Throw|_] -> throw({fail, Throw}); + [] -> throw({fail, none}) + end; false -> {join_maps_end(AccMaps, Map), AccType} end. diff --git a/lib/dialyzer/test/map_SUITE_data/results/map_in_guard2 b/lib/dialyzer/test/map_SUITE_data/results/map_in_guard2 index f6fb98a863..46e2e8d36c 100644 --- a/lib/dialyzer/test/map_SUITE_data/results/map_in_guard2 +++ b/lib/dialyzer/test/map_SUITE_data/results/map_in_guard2 @@ -2,11 +2,11 @@ map_in_guard2.erl:10: The call map_in_guard2:assoc_guard_clause('not_a_map') will never return since it differs in the 1st argument from the success typing arguments: (map()) map_in_guard2.erl:12: The pattern 'true' can never match the type 'false' map_in_guard2.erl:14: The call map_in_guard2:exact_guard_clause(#{}) will never return since it differs in the 1st argument from the success typing arguments: (#{'a':=_, _=>_}) -map_in_guard2.erl:17: Clause guard cannot succeed. The variable M was matched against the type 'not_a_map' +map_in_guard2.erl:17: Guard test is_map(M::'not_a_map') can never succeed map_in_guard2.erl:20: Function assoc_update/1 has no local return map_in_guard2.erl:20: Guard test is_map(M::'not_a_map') can never succeed -map_in_guard2.erl:22: Clause guard cannot succeed. The variable M was matched against the type 'not_a_map' map_in_guard2.erl:22: Function assoc_guard_clause/1 has no local return +map_in_guard2.erl:22: Guard test is_map(M::'not_a_map') can never succeed map_in_guard2.erl:24: Clause guard cannot succeed. The variable M was matched against the type #{} map_in_guard2.erl:27: Clause guard cannot succeed. The variable M was matched against the type #{} map_in_guard2.erl:27: Function exact_guard_clause/1 has no local return diff --git a/lib/dialyzer/test/small_SUITE_data/results/guards b/lib/dialyzer/test/small_SUITE_data/results/guards index 824a7cfa24..cd0d3cace0 100644 --- a/lib/dialyzer/test/small_SUITE_data/results/guards +++ b/lib/dialyzer/test/small_SUITE_data/results/guards @@ -10,8 +10,8 @@ guards.erl:136: The call guards:t16('a') will never return since it differs in t guards.erl:136: The call guards:t16('c') will never return since it differs in the 1st argument from the success typing arguments: ('b') guards.erl:55: Function t5/1 has no local return guards.erl:55: Guard test is_integer(A::atom()) can never succeed -guards.erl:59: Clause guard cannot succeed. The variable A was matched against the type any() guards.erl:59: Function t6/1 has no local return +guards.erl:59: Guard test is_integer(A::atom()) can never succeed guards.erl:67: The call guards:t7({42}) will never return since it differs in the 1st argument from the success typing arguments: (atom() | integer()) guards.erl:75: The call guards:t8({42}) will never return since it differs in the 1st argument from the success typing arguments: (atom() | integer()) guards.erl:92: The variable _ can never match since previous clauses completely covered the type {'true','true'} |