diff options
Diffstat (limited to 'lib/dialyzer')
| -rw-r--r-- | lib/dialyzer/src/dialyzer_dataflow.erl | 39 | ||||
| -rw-r--r-- | lib/dialyzer/src/dialyzer_typesig.erl | 195 | ||||
| -rw-r--r-- | lib/dialyzer/test/r9c_SUITE_data/results/asn1 | 6 | ||||
| -rw-r--r-- | lib/dialyzer/test/r9c_SUITE_data/results/inets | 20 | ||||
| -rw-r--r-- | lib/dialyzer/test/r9c_SUITE_data/results/mnesia | 2 | ||||
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/results/common_eunit | 2 | ||||
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/results/comparisons | 153 | ||||
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/results/failing_funs | 20 | ||||
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/results/my_sofs | 4 | ||||
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/src/common_eunit.erl | 121 | ||||
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/src/comparisons.erl | 322 | ||||
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/src/failing_funs.erl | 250 | ||||
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/src/list_to_bitstring.erl | 2 | ||||
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/src/rebar_no_return.erl | 19 |
14 files changed, 1049 insertions, 106 deletions
diff --git a/lib/dialyzer/src/dialyzer_dataflow.erl b/lib/dialyzer/src/dialyzer_dataflow.erl index 8cb16d8f09..659297f993 100644 --- a/lib/dialyzer/src/dialyzer_dataflow.erl +++ b/lib/dialyzer/src/dialyzer_dataflow.erl @@ -528,7 +528,7 @@ handle_apply(Tree, Map, State) -> {CallSitesKnown, FunList} = case state__lookup_call_site(Tree, State2) of error -> {false, []}; - {ok, [external]} -> {false, {}}; + {ok, [external]} -> {false, []}; {ok, List} -> {true, List} end, case CallSitesKnown of @@ -554,7 +554,13 @@ handle_apply(Tree, Map, State) -> {State3, enter_type(Op, OpType1, Map2), t_none()}; false -> Map3 = enter_type_lists(Args, NewArgs, Map2), - {State2, enter_type(Op, OpType1, Map3), t_fun_range(OpType1)} + Range0 = t_fun_range(OpType1), + Range = + case t_is_unit(Range0) of + true -> t_none(); + false -> Range0 + end, + {State2, enter_type(Op, OpType1, Map3), Range} end end; true -> @@ -2946,7 +2952,7 @@ state__get_warnings(#state{tree_map = TreeMap, fun_tab = FunTab, %% Check if the function has a contract that allows this. Warn = case Contract of - none -> true; + none -> not parent_allows_this(FunLbl, State); {value, C} -> GenRet = dialyzer_contracts:get_contract_return(C), not t_is_unit(GenRet) @@ -3434,6 +3440,33 @@ map_pats(Pats) -> end, cerl_trees:map(Fun, Pats). +parent_allows_this(FunLbl, #state{callgraph = Callgraph, plt = Plt} =State) -> + case state__is_escaping(FunLbl, State) of + false -> false; % if it isn't escaping it can't be a return value + true -> + case state__lookup_name(FunLbl, State) of + {_M, _F, _A} -> false; % if it has a name it is not a fun + _ -> + case dialyzer_callgraph:in_neighbours(FunLbl, Callgraph) of + [Parent] -> + case state__lookup_name(Parent, State) of + {_M, _F, _A} = PMFA -> + case dialyzer_plt:lookup_contract(Plt, PMFA) of + none -> false; + {value, C} -> + GenRet = dialyzer_contracts:get_contract_return(C), + case erl_types:t_is_fun(GenRet) of + false -> false; % element of structure? far-fetched... + true -> t_is_unit(t_fun_range(GenRet)) + end + end; + _ -> false % parent should have a name to have a contract + end; + _ -> false % called in other funs? far-fetched... + end + end + end. + classify_returns(Tree) -> case find_terminals(cerl:fun_body(Tree)) of {false, false} -> no_match; diff --git a/lib/dialyzer/src/dialyzer_typesig.erl b/lib/dialyzer/src/dialyzer_typesig.erl index 65c2ff76bb..06863d89a7 100644 --- a/lib/dialyzer/src/dialyzer_typesig.erl +++ b/lib/dialyzer/src/dialyzer_typesig.erl @@ -62,7 +62,8 @@ -type dep() :: integer(). %% type variable names used as constraint ids -type type_var() :: erl_types:erl_type(). %% actually: {'c','var',_,_} --record(fun_var, {'fun' :: fun((_) -> erl_types:erl_type()), deps :: [dep()]}). +-record(fun_var, {'fun' :: fun((_) -> erl_types:erl_type()), deps :: [dep()], + origin :: integer()}). -type constr_op() :: 'eq' | 'sub'. -type fvar_or_type() :: #fun_var{} | erl_types:erl_type(). @@ -121,8 +122,10 @@ -ifdef(DEBUG). -define(debug(__String, __Args), io:format(__String, __Args)). +-define(mk_fun_var(Fun, Vars), mk_fun_var(?LINE, Fun, Vars)). -else. -define(debug(__String, __Args), ok). +-define(mk_fun_var(Fun, Vars), mk_fun_var(Fun, Vars)). -endif. %% ============================================================================ @@ -218,10 +221,10 @@ traverse(Tree, DefinedVars, State) -> binary -> {State1, SegTypes} = traverse_list(cerl:binary_segments(Tree), DefinedVars, State), - Type = mk_fun_var(fun(Map) -> - TmpSegTypes = lookup_type_list(SegTypes, Map), - t_bitstr_concat(TmpSegTypes) - end, SegTypes), + Type = ?mk_fun_var(fun(Map) -> + TmpSegTypes = lookup_type_list(SegTypes, Map), + t_bitstr_concat(TmpSegTypes) + end, SegTypes), {state__store_conj(mk_var(Tree), sub, Type, State1), mk_var(Tree)}; bitstr -> Size = cerl:bitstr_size(Tree), @@ -236,7 +239,7 @@ traverse(Tree, DefinedVars, State) -> N when is_integer(N) -> {State1, t_bitstr(0, N)}; any -> % Size is not a literal {state__store_conj(SizeType, sub, t_non_neg_integer(), State1), - mk_fun_var(bitstr_constr(SizeType, UnitVal), [SizeType])} + ?mk_fun_var(bitstr_constr(SizeType, UnitVal), [SizeType])} end, ValTypeConstr = case cerl:concrete(cerl:bitstr_type(Tree)) of @@ -250,8 +253,8 @@ traverse(Tree, DefinedVars, State) -> case state__is_in_match(State1) of true -> Flags = cerl:concrete(cerl:bitstr_flags(Tree)), - mk_fun_var(bitstr_val_constr(SizeType, UnitVal, Flags), - [SizeType]); + ?mk_fun_var(bitstr_val_constr(SizeType, UnitVal, Flags), + [SizeType]); false -> t_integer() end; utf8 -> t_integer(); @@ -281,24 +284,24 @@ traverse(Tree, DefinedVars, State) -> {State, t_cons(HdVar, TlVar)}; false -> ConsVar = mk_var(Tree), - ConsType = mk_fun_var(fun(Map) -> - t_cons(lookup_type(HdVar, Map), - lookup_type(TlVar, Map)) - end, [HdVar, TlVar]), - HdType = mk_fun_var(fun(Map) -> - Cons = lookup_type(ConsVar, Map), - case t_is_cons(Cons) of - false -> t_any(); - true -> t_cons_hd(Cons) - end - end, [ConsVar]), - TlType = mk_fun_var(fun(Map) -> - Cons = lookup_type(ConsVar, Map), - case t_is_cons(Cons) of - false -> t_any(); - true -> t_cons_tl(Cons) - end - end, [ConsVar]), + ConsType = ?mk_fun_var(fun(Map) -> + t_cons(lookup_type(HdVar, Map), + lookup_type(TlVar, Map)) + end, [HdVar, TlVar]), + HdType = ?mk_fun_var(fun(Map) -> + Cons = lookup_type(ConsVar, Map), + case t_is_cons(Cons) of + false -> t_any(); + true -> t_cons_hd(Cons) + end + end, [ConsVar]), + TlType = ?mk_fun_var(fun(Map) -> + Cons = lookup_type(ConsVar, Map), + case t_is_cons(Cons) of + false -> t_any(); + true -> t_cons_tl(Cons) + end + end, [ConsVar]), State2 = state__store_conj_lists([HdVar, TlVar, ConsVar], sub, [HdType, TlType, ConsType], State1), @@ -656,25 +659,25 @@ get_plt_constr(MFA, Dst, ArgVars, State) -> {RetType, ArgCs} = case PltRes of none -> - {mk_fun_var(fun(Map) -> - ArgTypes = lookup_type_list(ArgVars, Map), - dialyzer_contracts:get_contract_return(C, ArgTypes) - end, ArgVars), GenArgs}; + {?mk_fun_var(fun(Map) -> + ArgTypes = lookup_type_list(ArgVars, Map), + dialyzer_contracts:get_contract_return(C, ArgTypes) + end, ArgVars), GenArgs}; {value, {PltRetType, PltArgTypes}} -> %% Need to combine the contract with the success typing. - {mk_fun_var( - fun(Map) -> - ArgTypes0 = lookup_type_list(ArgVars, Map), - ArgTypes = case FunModule =:= Module of - false -> - List = lists:zip(PltArgTypes, ArgTypes0), - [erl_types:t_unopaque_on_mismatch(T1, T2, Opaques) - || {T1, T2} <- List]; - true -> ArgTypes0 - end, - CRet = dialyzer_contracts:get_contract_return(C, ArgTypes), - t_inf(CRet, PltRetType, opaque) - end, ArgVars), + {?mk_fun_var( + fun(Map) -> + ArgTypes0 = lookup_type_list(ArgVars, Map), + ArgTypes = case FunModule =:= Module of + false -> + List = lists:zip(PltArgTypes, ArgTypes0), + [erl_types:t_unopaque_on_mismatch(T1, T2, Opaques) + || {T1, T2} <- List]; + true -> ArgTypes0 + end, + CRet = dialyzer_contracts:get_contract_return(C, ArgTypes), + t_inf(CRet, PltRetType, opaque) + end, ArgVars), [t_inf(X, Y, opaque) || {X, Y} <- lists:zip(GenArgs, PltArgTypes)]} end, state__store_conj_lists([Dst|ArgVars], sub, [RetType|ArgCs], State) @@ -766,10 +769,10 @@ handle_clauses_1([Clause|Tail], TopVar, Arg, DefinedVars, case SubtrTypes =:= overflow of true -> S; false -> - SubtrPatVar = mk_fun_var(fun(Map) -> - TmpType = lookup_type(Arg, Map), - t_subtract_list(TmpType, SubtrTypes) - end, [Arg]), + SubtrPatVar = ?mk_fun_var(fun(Map) -> + TmpType = lookup_type(Arg, Map), + t_subtract_list(TmpType, SubtrTypes) + end, [Arg]), state__store_conj(Arg, sub, SubtrPatVar, S) end end, @@ -1043,10 +1046,10 @@ handle_guard(Guard, DefinedVars, State) -> get_bif_constr({erlang, Op, 2}, Dst, Args = [Arg1, Arg2], _State) when Op =:= '+'; Op =:= '-'; Op =:= '*' -> - ReturnType = mk_fun_var(fun(Map) -> - TmpArgTypes = lookup_type_list(Args, Map), - erl_bif_types:type(erlang, Op, 2, TmpArgTypes) - end, Args), + ReturnType = ?mk_fun_var(fun(Map) -> + TmpArgTypes = lookup_type_list(Args, Map), + erl_bif_types:type(erlang, Op, 2, TmpArgTypes) + end, Args), ArgFun = fun(A, Pos) -> F = @@ -1074,7 +1077,7 @@ get_bif_constr({erlang, Op, 2}, Dst, Args = [Arg1, Arg2], _State) end end end, - mk_fun_var(F, [Dst, A]) + ?mk_fun_var(F, [Dst, A]) end, Arg1FunVar = ArgFun(Arg2, 2), Arg2FunVar = ArgFun(Arg1, 1), @@ -1131,12 +1134,12 @@ get_bif_constr({erlang, Op, 2}, Dst, [Arg1, Arg2] = Args, _State) '>=' -> {ArgFun(Arg1, Arg2, '>='), ArgFun(Arg2, Arg1, '=<')} end, DstArgs = [Dst, Arg1, Arg2], - Arg1Var = mk_fun_var(Arg1Fun, DstArgs), - Arg2Var = mk_fun_var(Arg2Fun, DstArgs), - DstVar = mk_fun_var(fun(Map) -> - TmpArgTypes = lookup_type_list(Args, Map), - erl_bif_types:type(erlang, Op, 2, TmpArgTypes) - end, Args), + Arg1Var = ?mk_fun_var(Arg1Fun, DstArgs), + Arg2Var = ?mk_fun_var(Arg2Fun, DstArgs), + DstVar = ?mk_fun_var(fun(Map) -> + TmpArgTypes = lookup_type_list(Args, Map), + erl_bif_types:type(erlang, Op, 2, TmpArgTypes) + end, Args), mk_conj_constraint_list([mk_constraint(Dst, sub, DstVar), mk_constraint(Arg1, sub, Arg1Var), mk_constraint(Arg2, sub, Arg2Var)]); @@ -1172,13 +1175,13 @@ get_bif_constr({erlang, '++', 2}, Dst, [Hd, Tl] = Args, _State) -> end end, DstL = [Dst], - HdVar = mk_fun_var(HdFun, DstL), - TlVar = mk_fun_var(TlFun, DstL), + HdVar = ?mk_fun_var(HdFun, DstL), + TlVar = ?mk_fun_var(TlFun, DstL), ArgTypes = erl_bif_types:arg_types(erlang, '++', 2), - ReturnType = mk_fun_var(fun(Map) -> - TmpArgTypes = lookup_type_list(Args, Map), - erl_bif_types:type(erlang, '++', 2, TmpArgTypes) - end, Args), + ReturnType = ?mk_fun_var(fun(Map) -> + TmpArgTypes = lookup_type_list(Args, Map), + erl_bif_types:type(erlang, '++', 2, TmpArgTypes) + end, Args), Cs = mk_constraints(Args, sub, ArgTypes), mk_conj_constraint_list([mk_constraint(Dst, sub, ReturnType), mk_constraint(Hd, sub, HdVar), @@ -1209,7 +1212,7 @@ get_bif_constr({erlang, is_function, 2}, Dst, [Fun, Arity], _State) -> false -> t_any() end end, - ArgV = mk_fun_var(ArgFun, [Dst, Arity]), + ArgV = ?mk_fun_var(ArgFun, [Dst, Arity]), mk_conj_constraint_list([mk_constraint(Dst, sub, t_boolean()), mk_constraint(Arity, sub, t_integer()), mk_constraint(Fun, sub, ArgV)]); @@ -1232,12 +1235,12 @@ get_bif_constr({erlang, is_record, 2}, Dst, [Var, Tag] = Args, _State) -> false -> t_any() end end, - ArgV = mk_fun_var(ArgFun, [Dst]), + ArgV = ?mk_fun_var(ArgFun, [Dst]), DstFun = fun(Map) -> TmpArgTypes = lookup_type_list(Args, Map), erl_bif_types:type(erlang, is_record, 2, TmpArgTypes) end, - DstV = mk_fun_var(DstFun, Args), + DstV = ?mk_fun_var(DstFun, Args), mk_conj_constraint_list([mk_constraint(Dst, sub, DstV), mk_constraint(Tag, sub, t_atom()), mk_constraint(Var, sub, ArgV)]); @@ -1280,7 +1283,7 @@ get_bif_constr({erlang, is_record, 3}, Dst, [Var, Tag, Arity] = Args, State) -> false -> t_any() end end, - ArgV = mk_fun_var(ArgFun, [Tag, Arity, Dst]), + ArgV = ?mk_fun_var(ArgFun, [Tag, Arity, Dst]), DstFun = fun(Map) -> [TmpVar, TmpTag, TmpArity] = TmpArgTypes = lookup_type_list(Args, Map), TmpArgTypes2 = @@ -1314,7 +1317,7 @@ get_bif_constr({erlang, is_record, 3}, Dst, [Var, Tag, Arity] = Args, State) -> end, erl_bif_types:type(erlang, is_record, 3, TmpArgTypes2) end, - DstV = mk_fun_var(DstFun, Args), + DstV = ?mk_fun_var(DstFun, Args), mk_conj_constraint_list([mk_constraint(Dst, sub, DstV), mk_constraint(Arity, sub, t_integer()), mk_constraint(Tag, sub, t_atom()), @@ -1359,9 +1362,9 @@ get_bif_constr({erlang, 'and', 2}, Dst, [Arg1, Arg2] = Args, _State) -> end end end, - ArgV1 = mk_fun_var(ArgFun(Arg2), [Arg2, Dst]), - ArgV2 = mk_fun_var(ArgFun(Arg1), [Arg1, Dst]), - DstV = mk_fun_var(DstFun, Args), + ArgV1 = ?mk_fun_var(ArgFun(Arg2), [Arg2, Dst]), + ArgV2 = ?mk_fun_var(ArgFun(Arg1), [Arg1, Dst]), + DstV = ?mk_fun_var(DstFun, Args), mk_conj_constraint_list([mk_constraint(Dst, sub, DstV), mk_constraint(Arg1, sub, ArgV1), mk_constraint(Arg2, sub, ArgV2)]); @@ -1403,9 +1406,9 @@ get_bif_constr({erlang, 'or', 2}, Dst, [Arg1, Arg2] = Args, _State) -> end end end, - ArgV1 = mk_fun_var(ArgFun(Arg2), [Arg2, Dst]), - ArgV2 = mk_fun_var(ArgFun(Arg1), [Arg1, Dst]), - DstV = mk_fun_var(DstFun, Args), + ArgV1 = ?mk_fun_var(ArgFun(Arg2), [Arg2, Dst]), + ArgV2 = ?mk_fun_var(ArgFun(Arg1), [Arg1, Dst]), + DstV = ?mk_fun_var(DstFun, Args), F = fun(A) -> try [mk_constraint(A, sub, True)] catch throw:error -> [] @@ -1433,8 +1436,8 @@ get_bif_constr({erlang, 'not', 1}, Dst, [Arg] = Args, _State) -> end end end, - ArgV = mk_fun_var(Fun(Dst), [Dst]), - DstV = mk_fun_var(Fun(Arg), Args), + ArgV = ?mk_fun_var(Fun(Dst), [Dst]), + DstV = ?mk_fun_var(Fun(Arg), Args), mk_conj_constraint_list([mk_constraint(Arg, sub, ArgV), mk_constraint(Dst, sub, DstV)]); get_bif_constr({erlang, '=:=', 2}, Dst, [Arg1, Arg2] = Args, _State) -> @@ -1467,9 +1470,9 @@ get_bif_constr({erlang, '=:=', 2}, Dst, [Arg1, Arg2] = Args, _State) -> end end, DstArgs = [Dst, Arg1, Arg2], - ArgV1 = mk_fun_var(ArgFun(Arg1, Arg2), DstArgs), - ArgV2 = mk_fun_var(ArgFun(Arg2, Arg1), DstArgs), - DstV = mk_fun_var(DstFun, Args), + ArgV1 = ?mk_fun_var(ArgFun(Arg1, Arg2), DstArgs), + ArgV2 = ?mk_fun_var(ArgFun(Arg2, Arg1), DstArgs), + DstV = ?mk_fun_var(DstFun, Args), mk_conj_constraint_list([mk_constraint(Dst, sub, DstV), mk_constraint(Arg1, sub, ArgV1), mk_constraint(Arg2, sub, ArgV2)]); @@ -1510,10 +1513,10 @@ get_bif_constr({erlang, '==', 2}, Dst, [Arg1, Arg2] = Args, _State) -> end end end, - DstV = mk_fun_var(DstFun, Args), + DstV = ?mk_fun_var(DstFun, Args), ArgL = [Arg1, Arg2, Dst], - ArgV1 = mk_fun_var(ArgFun(Arg2, Arg1), ArgL), - ArgV2 = mk_fun_var(ArgFun(Arg1, Arg2), ArgL), + ArgV1 = ?mk_fun_var(ArgFun(Arg2, Arg1), ArgL), + ArgV2 = ?mk_fun_var(ArgFun(Arg1, Arg2), ArgL), mk_conj_constraint_list([mk_constraint(Dst, sub, DstV), mk_constraint(Arg1, sub, ArgV1), mk_constraint(Arg2, sub, ArgV2)]); @@ -1531,7 +1534,7 @@ get_bif_constr({erlang, element, 2} = _BIF, Dst, Args, end, erl_bif_types:type(erlang, element, 2, ATs2) end, - ReturnType = mk_fun_var(Fun, Args), + ReturnType = ?mk_fun_var(Fun, Args), ArgTypes = erl_bif_types:arg_types(erlang, element, 2), Cs = mk_constraints(Args, sub, ArgTypes), NewCs = @@ -1553,7 +1556,7 @@ get_bif_constr({M, F, A} = _BIF, Dst, Args, State) -> false -> T end end, - ReturnType = mk_fun_var(fun(Map) -> + ReturnType = ?mk_fun_var(fun(Map) -> TmpArgTypes0 = lookup_type_list(Args, Map), TmpArgTypes = [UnopaqueFun(T) || T<- TmpArgTypes0], erl_bif_types:type(M, F, A, TmpArgTypes) @@ -1608,7 +1611,7 @@ get_bif_test_constr(Dst, Arg, Type, State) -> false -> t_any() end end, - ArgV = mk_fun_var(ArgFun, [Dst]), + ArgV = ?mk_fun_var(ArgFun, [Dst]), DstFun = fun(Map) -> ArgType = lookup_type(Arg, Map), case t_is_none(t_inf(ArgType, Type)) of @@ -1633,7 +1636,7 @@ get_bif_test_constr(Dst, Arg, Type, State) -> end end end, - DstV = mk_fun_var(DstFun, [Arg]), + DstV = ?mk_fun_var(DstFun, [Arg]), mk_conj_constraint_list([mk_constraint(Dst, sub, DstV), mk_constraint(Arg, sub, ArgV)]). @@ -2323,12 +2326,25 @@ mk_constraint(Lhs, Op, Rhs) -> constraint_opnd_is_any(#fun_var{}) -> false; constraint_opnd_is_any(Type) -> t_is_any(Type). +-ifdef(DEBUG). + +-spec mk_fun_var(fun((_) -> erl_types:erl_type()), [erl_types:erl_type()], + integer()) -> #fun_var{}. + +mk_fun_var(Line, Fun, Types) -> + Deps = [t_var_name(Var) || Var <- t_collect_vars(t_product(Types))], + #fun_var{'fun' = Fun, deps = ordsets:from_list(Deps), origin = Line}. + +-else. + -spec mk_fun_var(fun((_) -> erl_types:erl_type()), [erl_types:erl_type()]) -> #fun_var{}. mk_fun_var(Fun, Types) -> Deps = [t_var_name(Var) || Var <- t_collect_vars(t_product(Types))], #fun_var{'fun' = Fun, deps = ordsets:from_list(Deps)}. +-endif. + -spec get_deps(constr()) -> [dep()]. get_deps(#constraint{deps = D}) -> D; @@ -2679,8 +2695,9 @@ find_constraint(Tuple, [_|Cs]) -> -endif. -ifdef(DEBUG). -format_type(#fun_var{deps = Deps}) -> - io_lib:format("Fun(~s)", [lists:flatten([format_type(t_var(X))||X<-Deps])]); +format_type(#fun_var{deps = Deps, origin = Origin}) -> + io_lib:format("Fun@L~p(~s)", + [Origin, lists:flatten([format_type(t_var(X))||X<-Deps])]); format_type(Type) -> case cerl:is_literal(Type) of true -> io_lib:format("~w", [cerl:concrete(Type)]); diff --git a/lib/dialyzer/test/r9c_SUITE_data/results/asn1 b/lib/dialyzer/test/r9c_SUITE_data/results/asn1 index 571e562d0d..292275dd6e 100644 --- a/lib/dialyzer/test/r9c_SUITE_data/results/asn1 +++ b/lib/dialyzer/test/r9c_SUITE_data/results/asn1 @@ -6,7 +6,7 @@ asn1ct.erl:672: The pattern <{'false', Result}, _, _> can never match the type < asn1ct.erl:909: Guard test is_atom(Ext::[49 | 97 | 98 | 100 | 110 | 115]) can never succeed asn1ct_check.erl:1698: The pattern {'error', _} can never match the type [any()] asn1ct_check.erl:2733: The pattern {'type', Tag, _, _, _, _} can never match the type 'ASN1_OPEN_TYPE' | {_,_} | {'fixedtypevaluefield',_,_} -asn1ct_check.erl:2738: The pattern <_S, _> can never match since previous clauses completely covered the type <#state{},#ObjectClassFieldType{class::#objectclass{fields::maybe_improper_list() | {_,_,_,_}},fieldname::{_,maybe_improper_list()},type::'ASN1_OPEN_TYPE' | {_,_} | {'fixedtypevaluefield',_,_}}> +asn1ct_check.erl:2738: The pattern <_S, _> can never match since previous clauses completely covered the type <#state{},#'ObjectClassFieldType'{class::#objectclass{fields::maybe_improper_list() | {_,_,_,_}},fieldname::{_,maybe_improper_list()},type::'ASN1_OPEN_TYPE' | {_,_} | {'fixedtypevaluefield',_,_}}> asn1ct_check.erl:2887: The variable Other can never match since previous clauses completely covered the type any() asn1ct_check.erl:3188: The pattern <_S, [], B> can never match the type <#state{},{'SingleValue',_},{'ValueRange',_}> asn1ct_check.erl:3190: The pattern <_S, A, []> can never match the type <#state{},{'SingleValue',_},{'ValueRange',_}> @@ -29,8 +29,8 @@ asn1ct_check.erl:5128: Guard test is_record(Type::{_,_} | {'fixedtypevaluefield' asn1ct_check.erl:540: The pattern <_S, {'poc', _ObjSet, _Params}> can never match since previous clauses completely covered the type <#state{},_> asn1ct_check.erl:5517: The pattern <_, []> can never match the type <_,[{'ABSTRACT-SYNTAX',{_,_,_}} | {'TYPE-IDENTIFIER',{_,_,_}},...]> asn1ct_constructed_ber.erl:1075: The pattern {{{'ObjectClassFieldType', _, _, _, {'objectfield', PrimFieldName1, PFNList}}, _}, {'componentrelation', _, _}} can never match the type {#type{},_} -asn1ct_constructed_ber.erl:695: The pattern {'EXTENSIONMARK', _, _} can never match the type #ComponentType{} -asn1ct_constructed_ber.erl:748: The pattern <Erules, TopType, {CompList, _ExtList}> can never match the type <_,maybe_improper_list(),[#ComponentType{typespec::{_,_,_,_,_,_}}]> +asn1ct_constructed_ber.erl:695: The pattern {'EXTENSIONMARK', _, _} can never match the type #'ComponentType'{} +asn1ct_constructed_ber.erl:748: The pattern <Erules, TopType, {CompList, _ExtList}> can never match the type <_,maybe_improper_list(),[#'ComponentType'{typespec::{_,_,_,_,_,_}}]> asn1ct_constructed_ber_bin_v2.erl:914: The pattern {{{'ObjectClassFieldType', _, _, _, {'objectfield', PrimFieldName1, PFNList}}, _}, {'componentrelation', _, _}} can never match the type {#type{},_} asn1ct_gen.erl:740: The pattern [] can never match the type [any(),...] asn1ct_gen_ber.erl:974: The pattern <Erules, [{Name, Def} | Rest]> can never match the type <_,[#typedef{name::atom(),typespec::{_,_,_,_,_,_}}]> diff --git a/lib/dialyzer/test/r9c_SUITE_data/results/inets b/lib/dialyzer/test/r9c_SUITE_data/results/inets index 6b16dba2ff..0177dcc88c 100644 --- a/lib/dialyzer/test/r9c_SUITE_data/results/inets +++ b/lib/dialyzer/test/r9c_SUITE_data/results/inets @@ -3,9 +3,14 @@ ftp.erl:1243: The pattern {'ok', {N, Bytes}} can never match the type 'eof' | {' ftp.erl:640: The pattern {'closed', _Why} can never match the type 'perm_fname_not_allowed' | 'perm_neg_compl' | 'perm_no_space' | 'pos_compl' | 'pos_interm' | 'pos_interm_acct' | 'trans_neg_compl' | 'trans_no_space' | {'error' | 'perm_fname_not_allowed' | 'perm_neg_compl' | 'perm_no_space' | 'pos_compl' | 'pos_interm' | 'pos_interm_acct' | 'pos_prel' | 'trans_neg_compl' | 'trans_no_space',atom() | [any()] | {'invalid_server_response',[any(),...]}} http.erl:117: The pattern {'error', Reason} can never match the type #req_headers{connection::[45 | 97 | 101 | 105 | 107 | 108 | 112 | 118,...],content_length::[48,...],other::[{_,_}]} http.erl:138: Function close_session/2 will never be called -http_lib.erl:286: The call http_lib:close('ip_comm' | {'ssl',_},any()) will never return since it differs in the 1st argument from the success typing arguments: ('http' | 'https',any()) -http_lib.erl:424: The variable _ can never match since previous clauses completely covered the type any() -http_lib.erl:438: The variable _ can never match since previous clauses completely covered the type any() +http_lib.erl:286: The call http_lib:close('ip_comm' | {'ssl',_},port() | {'sslsocket',_,_}) will never return since it differs in the 1st argument from the success typing arguments: ('http' | 'https',port() | {'sslsocket',_,pid() | {_,{'config',_,_,_,_,{_,_,_,_}}} | {'sslsocket',_,pid() | {'sslsocket',_,pid() | {_,_,_}}}}) +http_lib.erl:415: The pattern 61 can never match the type 'http_eoh' | binary() | maybe_improper_list(any(),binary() | []) | {'http_error',binary() | string()} | #http_request{method::'DELETE' | 'GET' | 'HEAD' | 'OPTIONS' | 'POST' | 'PUT' | 'TRACE' | binary() | string(),path::'*' | binary() | string() | {'abs_path',binary() | string()} | {'scheme',binary() | string(),binary() | string()} | {'absoluteURI','http' | 'https',binary() | string(),'undefined' | non_neg_integer(),binary() | string()},version::{non_neg_integer(),non_neg_integer()}} | #http_response{version::{non_neg_integer(),non_neg_integer()},status::integer(),phrase::binary() | string()} | {'http_header',integer(),atom() | binary() | string(),_,binary() | string()} +http_lib.erl:417: The pattern 59 can never match the type 'http_eoh' | binary() | maybe_improper_list(any(),binary() | []) | {'http_error',binary() | string()} | #http_request{method::'DELETE' | 'GET' | 'HEAD' | 'OPTIONS' | 'POST' | 'PUT' | 'TRACE' | binary() | string(),path::'*' | binary() | string() | {'abs_path',binary() | string()} | {'scheme',binary() | string(),binary() | string()} | {'absoluteURI','http' | 'https',binary() | string(),'undefined' | non_neg_integer(),binary() | string()},version::{non_neg_integer(),non_neg_integer()}} | #http_response{version::{non_neg_integer(),non_neg_integer()},status::integer(),phrase::binary() | string()} | {'http_header',integer(),atom() | binary() | string(),_,binary() | string()} +http_lib.erl:420: The pattern 13 can never match the type 'http_eoh' | binary() | maybe_improper_list(any(),binary() | []) | {'http_error',binary() | string()} | #http_request{method::'DELETE' | 'GET' | 'HEAD' | 'OPTIONS' | 'POST' | 'PUT' | 'TRACE' | binary() | string(),path::'*' | binary() | string() | {'abs_path',binary() | string()} | {'scheme',binary() | string(),binary() | string()} | {'absoluteURI','http' | 'https',binary() | string(),'undefined' | non_neg_integer(),binary() | string()},version::{non_neg_integer(),non_neg_integer()}} | #http_response{version::{non_neg_integer(),non_neg_integer()},status::integer(),phrase::binary() | string()} | {'http_header',integer(),atom() | binary() | string(),_,binary() | string()} +http_lib.erl:424: The variable _ can never match since previous clauses completely covered the type 'http_eoh' | binary() | maybe_improper_list(any(),binary() | []) | {'http_error',binary() | string()} | #http_request{method::'DELETE' | 'GET' | 'HEAD' | 'OPTIONS' | 'POST' | 'PUT' | 'TRACE' | binary() | string(),path::'*' | binary() | string() | {'abs_path',binary() | string()} | {'scheme',binary() | string(),binary() | string()} | {'absoluteURI','http' | 'https',binary() | string(),'undefined' | non_neg_integer(),binary() | string()},version::{non_neg_integer(),non_neg_integer()}} | #http_response{version::{non_neg_integer(),non_neg_integer()},status::integer(),phrase::binary() | string()} | {'http_header',integer(),atom() | binary() | string(),_,binary() | string()} +http_lib.erl:428: Function read_chunk_ext_val/6 will never be called +http_lib.erl:444: The pattern 10 can never match the type 'http_eoh' | binary() | maybe_improper_list(any(),binary() | []) | {'http_error',binary() | string()} | #http_request{method::'DELETE' | 'GET' | 'HEAD' | 'OPTIONS' | 'POST' | 'PUT' | 'TRACE' | binary() | string(),path::'*' | binary() | string() | {'abs_path',binary() | string()} | {'scheme',binary() | string(),binary() | string()} | {'absoluteURI','http' | 'https',binary() | string(),'undefined' | non_neg_integer(),binary() | string()},version::{non_neg_integer(),non_neg_integer()}} | #http_response{version::{non_neg_integer(),non_neg_integer()},status::integer(),phrase::binary() | string()} | {'http_header',integer(),atom() | binary() | string(),_,binary() | string()} +http_lib.erl:552: Call to missing or unexported function ssl:accept/2 http_lib.erl:99: Function getHeaderValue/2 will never be called httpc_handler.erl:660: Function exit_session_ok/2 has no local return httpc_manager.erl:145: The pattern {ErrorReply, State2} can never match the type {{'ok',number()},number(),#state{reqid::number()}} @@ -21,11 +26,14 @@ httpd_manager.erl:885: The pattern {'EXIT', Reason} can never match since previo httpd_manager.erl:919: Function auth_status/1 will never be called httpd_manager.erl:926: Function sec_status/1 will never be called httpd_manager.erl:933: Function acceptor_status/1 will never be called -httpd_request_handler.erl:374: The call httpd_response:send_status(Info::#mod{parsed_header::maybe_improper_list()},417,[32 | 66 | 98 | 100 | 103 | 105 | 111 | 116 | 121,...]) will never return since it differs in the 2nd argument from the success typing arguments: (#mod{socket_type::'ip_comm' | {'ssl',_}},100 | 301 | 304 | 400 | 401 | 403 | 404 | 412 | 414 | 416 | 500 | 501 | 503,any()) -httpd_request_handler.erl:378: The call httpd_response:send_status(Info::#mod{parsed_header::maybe_improper_list()},417,[32 | 77 | 97 | 100 | 101 | 104 | 108 | 110 | 111 | 116 | 119,...]) will never return since it differs in the 2nd argument from the success typing arguments: (#mod{socket_type::'ip_comm' | {'ssl',_}},100 | 301 | 304 | 400 | 401 | 403 | 404 | 412 | 414 | 416 | 500 | 501 | 503,any()) -httpd_request_handler.erl:401: The call httpd_response:send_status(Info::#mod{parsed_header::maybe_improper_list()},417,[32 | 77 | 97 | 100 | 101 | 104 | 108 | 110 | 111 | 116 | 119,...]) will never return since it differs in the 2nd argument from the success typing arguments: (#mod{socket_type::'ip_comm' | {'ssl',_}},100 | 301 | 304 | 400 | 401 | 403 | 404 | 412 | 414 | 416 | 500 | 501 | 503,any()) +httpd_request_handler.erl:374: The call httpd_response:send_status(Info::#mod{parsed_header::maybe_improper_list()},417,[32 | 66 | 98 | 100 | 103 | 105 | 111 | 116 | 121,...]) will never return since it differs in the 2nd argument from the success typing arguments: (#mod{socket_type::'ip_comm' | {'ssl',_},socket::port() | {'sslsocket',_,_}},100 | 301 | 304 | 400 | 401 | 403 | 404 | 412 | 414 | 416 | 500 | 501 | 503,any()) +httpd_request_handler.erl:378: The call httpd_response:send_status(Info::#mod{parsed_header::maybe_improper_list()},417,[32 | 77 | 97 | 100 | 101 | 104 | 108 | 110 | 111 | 116 | 119,...]) will never return since it differs in the 2nd argument from the success typing arguments: (#mod{socket_type::'ip_comm' | {'ssl',_},socket::port() | {'sslsocket',_,_}},100 | 301 | 304 | 400 | 401 | 403 | 404 | 412 | 414 | 416 | 500 | 501 | 503,any()) +httpd_request_handler.erl:401: The call httpd_response:send_status(Info::#mod{parsed_header::maybe_improper_list()},417,[32 | 77 | 97 | 100 | 101 | 104 | 108 | 110 | 111 | 116 | 119,...]) will never return since it differs in the 2nd argument from the success typing arguments: (#mod{socket_type::'ip_comm' | {'ssl',_},socket::port() | {'sslsocket',_,_}},100 | 301 | 304 | 400 | 401 | 403 | 404 | 412 | 414 | 416 | 500 | 501 | 503,any()) +httpd_request_handler.erl:489: The variable Other can never match since previous clauses completely covered the type {'error',_} | {'ok','http_eoh' | binary() | maybe_improper_list(any(),binary() | []) | {'http_error',binary() | string()} | {'http_request','DELETE' | 'GET' | 'HEAD' | 'OPTIONS' | 'POST' | 'PUT' | 'TRACE' | binary() | string(),'*' | binary() | string() | {'abs_path',binary() | [any()]} | {'scheme',binary() | [any()],binary() | [any()]} | {'absoluteURI','http' | 'https',binary() | [any()],'undefined' | non_neg_integer(),binary() | [any()]},{non_neg_integer(),non_neg_integer()}} | {'http_response',{non_neg_integer(),non_neg_integer()},integer(),binary() | string()} | {'http_header',integer(),atom() | binary() | string(),_,binary() | string()}} httpd_request_handler.erl:644: The call lists:reverse(Fields0::{'error',_} | {'ok',_}) will never return since it differs in the 1st argument from the success typing arguments: ([any()]) httpd_request_handler.erl:645: Function will never be called +httpd_socket.erl:129: Call to missing or unexported function ssl:accept/2 +httpd_socket.erl:49: The pattern {'ok', _} can never match the type {'error',_} httpd_sup.erl:63: The variable Else can never match since previous clauses completely covered the type {'error',_} | {'ok',[any()],_,_} httpd_sup.erl:88: The pattern {'error', Reason} can never match the type {'ok',_,_} httpd_sup.erl:92: The variable Else can never match since previous clauses completely covered the type {'ok',_,_} diff --git a/lib/dialyzer/test/r9c_SUITE_data/results/mnesia b/lib/dialyzer/test/r9c_SUITE_data/results/mnesia index b0f4d12ae5..2be71ac7d7 100644 --- a/lib/dialyzer/test/r9c_SUITE_data/results/mnesia +++ b/lib/dialyzer/test/r9c_SUITE_data/results/mnesia @@ -6,8 +6,6 @@ mnesia_bup.erl:111: The created fun has no local return mnesia_bup.erl:574: Function fallback_receiver/2 has no local return mnesia_bup.erl:967: Function uninstall_fallback_master/2 has no local return mnesia_checkpoint.erl:1014: The variable Error can never match since previous clauses completely covered the type {'ok',#checkpoint_args{nodes::[any()],retainers::[any(),...]}} -mnesia_checkpoint.erl:1209: Function system_continue/3 has no local return -mnesia_checkpoint.erl:792: Function retainer_loop/1 has no local return mnesia_checkpoint.erl:894: The call sys:handle_system_msg(Msg::any(),From::any(),'no_parent','mnesia_checkpoint',[],Cp::#checkpoint_args{}) breaks the contract (Msg,From,Parent,Module,Debug,Misc) -> Void when is_subtype(Msg,term()), is_subtype(From,{pid(),Tag::_}), is_subtype(Parent,pid()), is_subtype(Module,module()), is_subtype(Debug,[dbg_opt()]), is_subtype(Misc,term()), is_subtype(Void,term()) mnesia_controller.erl:1666: The variable Tab can never match since previous clauses completely covered the type [any()] mnesia_controller.erl:1679: The pattern {'stop', Reason, Reply, State2} can never match the type {'noreply',_} | {'reply',_,_} | {'stop','shutdown',#state{}} diff --git a/lib/dialyzer/test/small_SUITE_data/results/common_eunit b/lib/dialyzer/test/small_SUITE_data/results/common_eunit new file mode 100644 index 0000000000..bb5fd1c9ac --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/results/common_eunit @@ -0,0 +1,2 @@ + +common_eunit.erl:57: The created fun has no local return diff --git a/lib/dialyzer/test/small_SUITE_data/results/comparisons b/lib/dialyzer/test/small_SUITE_data/results/comparisons new file mode 100644 index 0000000000..642585d25e --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/results/comparisons @@ -0,0 +1,153 @@ + +comparisons.erl:100: The pattern 'true' can never match the type 'false' +comparisons.erl:101: The pattern 'true' can never match the type 'false' +comparisons.erl:102: The pattern 'false' can never match the type 'true' +comparisons.erl:103: The pattern 'false' can never match the type 'true' +comparisons.erl:104: The pattern 'true' can never match the type 'false' +comparisons.erl:105: The pattern 'true' can never match the type 'false' +comparisons.erl:107: The pattern 'true' can never match the type 'false' +comparisons.erl:108: The pattern 'true' can never match the type 'false' +comparisons.erl:109: The pattern 'false' can never match the type 'true' +comparisons.erl:110: The pattern 'false' can never match the type 'true' +comparisons.erl:111: The pattern 'true' can never match the type 'false' +comparisons.erl:112: The pattern 'true' can never match the type 'false' +comparisons.erl:113: The pattern 'false' can never match the type 'true' +comparisons.erl:114: The pattern 'false' can never match the type 'true' +comparisons.erl:115: The pattern 'true' can never match the type 'false' +comparisons.erl:116: The pattern 'true' can never match the type 'false' +comparisons.erl:117: The pattern 'false' can never match the type 'true' +comparisons.erl:118: The pattern 'false' can never match the type 'true' +comparisons.erl:123: The pattern 'false' can never match the type 'true' +comparisons.erl:124: The pattern 'false' can never match the type 'true' +comparisons.erl:125: The pattern 'true' can never match the type 'false' +comparisons.erl:126: The pattern 'true' can never match the type 'false' +comparisons.erl:127: The pattern 'false' can never match the type 'true' +comparisons.erl:128: The pattern 'false' can never match the type 'true' +comparisons.erl:129: The pattern 'true' can never match the type 'false' +comparisons.erl:130: The pattern 'true' can never match the type 'false' +comparisons.erl:132: The pattern 'true' can never match the type 'false' +comparisons.erl:133: The pattern 'true' can never match the type 'false' +comparisons.erl:134: The pattern 'false' can never match the type 'true' +comparisons.erl:135: The pattern 'false' can never match the type 'true' +comparisons.erl:136: The pattern 'true' can never match the type 'false' +comparisons.erl:137: The pattern 'true' can never match the type 'false' +comparisons.erl:138: The pattern 'false' can never match the type 'true' +comparisons.erl:139: The pattern 'false' can never match the type 'true' +comparisons.erl:140: The pattern 'true' can never match the type 'false' +comparisons.erl:141: The pattern 'true' can never match the type 'false' +comparisons.erl:142: The pattern 'false' can never match the type 'true' +comparisons.erl:143: The pattern 'false' can never match the type 'true' +comparisons.erl:144: The pattern 'true' can never match the type 'false' +comparisons.erl:145: The pattern 'true' can never match the type 'false' +comparisons.erl:146: The pattern 'false' can never match the type 'true' +comparisons.erl:147: The pattern 'false' can never match the type 'true' +comparisons.erl:152: The pattern 'false' can never match the type 'true' +comparisons.erl:153: The pattern 'false' can never match the type 'true' +comparisons.erl:154: The pattern 'true' can never match the type 'false' +comparisons.erl:155: The pattern 'true' can never match the type 'false' +comparisons.erl:157: The pattern 'true' can never match the type 'false' +comparisons.erl:158: The pattern 'true' can never match the type 'false' +comparisons.erl:159: The pattern 'false' can never match the type 'true' +comparisons.erl:160: The pattern 'false' can never match the type 'true' +comparisons.erl:161: The pattern 'true' can never match the type 'false' +comparisons.erl:162: The pattern 'true' can never match the type 'false' +comparisons.erl:163: The pattern 'false' can never match the type 'true' +comparisons.erl:164: The pattern 'false' can never match the type 'true' +comparisons.erl:165: The pattern 'true' can never match the type 'false' +comparisons.erl:166: The pattern 'true' can never match the type 'false' +comparisons.erl:167: The pattern 'false' can never match the type 'true' +comparisons.erl:168: The pattern 'false' can never match the type 'true' +comparisons.erl:169: The pattern 'true' can never match the type 'false' +comparisons.erl:170: The pattern 'true' can never match the type 'false' +comparisons.erl:171: The pattern 'false' can never match the type 'true' +comparisons.erl:172: The pattern 'false' can never match the type 'true' +comparisons.erl:173: The pattern 'true' can never match the type 'false' +comparisons.erl:174: The pattern 'true' can never match the type 'false' +comparisons.erl:175: The pattern 'false' can never match the type 'true' +comparisons.erl:176: The pattern 'false' can never match the type 'true' +comparisons.erl:186: The pattern 'false' can never match the type 'true' +comparisons.erl:187: The pattern 'false' can never match the type 'true' +comparisons.erl:188: The pattern 'true' can never match the type 'false' +comparisons.erl:189: The pattern 'true' can never match the type 'false' +comparisons.erl:190: The pattern 'false' can never match the type 'true' +comparisons.erl:191: The pattern 'false' can never match the type 'true' +comparisons.erl:192: The pattern 'true' can never match the type 'false' +comparisons.erl:193: The pattern 'true' can never match the type 'false' +comparisons.erl:203: The pattern 'false' can never match the type 'true' +comparisons.erl:204: The pattern 'false' can never match the type 'true' +comparisons.erl:205: The pattern 'true' can never match the type 'false' +comparisons.erl:206: The pattern 'true' can never match the type 'false' +comparisons.erl:208: The pattern 'true' can never match the type 'false' +comparisons.erl:209: The pattern 'true' can never match the type 'false' +comparisons.erl:210: The pattern 'false' can never match the type 'true' +comparisons.erl:211: The pattern 'false' can never match the type 'true' +comparisons.erl:221: The pattern 'true' can never match the type 'false' +comparisons.erl:222: The pattern 'true' can never match the type 'false' +comparisons.erl:223: The pattern 'false' can never match the type 'true' +comparisons.erl:224: The pattern 'false' can never match the type 'true' +comparisons.erl:225: The pattern 'true' can never match the type 'false' +comparisons.erl:226: The pattern 'true' can never match the type 'false' +comparisons.erl:227: The pattern 'false' can never match the type 'true' +comparisons.erl:228: The pattern 'false' can never match the type 'true' +comparisons.erl:242: The pattern 'false' can never match the type 'true' +comparisons.erl:243: The pattern 'false' can never match the type 'true' +comparisons.erl:244: The pattern 'true' can never match the type 'false' +comparisons.erl:245: The pattern 'true' can never match the type 'false' +comparisons.erl:246: The pattern 'false' can never match the type 'true' +comparisons.erl:247: The pattern 'false' can never match the type 'true' +comparisons.erl:248: The pattern 'true' can never match the type 'false' +comparisons.erl:249: The pattern 'true' can never match the type 'false' +comparisons.erl:251: The pattern 'true' can never match the type 'false' +comparisons.erl:252: The pattern 'true' can never match the type 'false' +comparisons.erl:253: The pattern 'false' can never match the type 'true' +comparisons.erl:254: The pattern 'false' can never match the type 'true' +comparisons.erl:263: The pattern 'false' can never match the type 'true' +comparisons.erl:264: The pattern 'false' can never match the type 'true' +comparisons.erl:265: The pattern 'true' can never match the type 'false' +comparisons.erl:266: The pattern 'true' can never match the type 'false' +comparisons.erl:268: The pattern 'true' can never match the type 'false' +comparisons.erl:269: The pattern 'true' can never match the type 'false' +comparisons.erl:270: The pattern 'false' can never match the type 'true' +comparisons.erl:271: The pattern 'false' can never match the type 'true' +comparisons.erl:272: The pattern 'true' can never match the type 'false' +comparisons.erl:273: The pattern 'true' can never match the type 'false' +comparisons.erl:274: The pattern 'false' can never match the type 'true' +comparisons.erl:275: The pattern 'false' can never match the type 'true' +comparisons.erl:293: The pattern 'false' can never match the type 'true' +comparisons.erl:294: The pattern 'false' can never match the type 'true' +comparisons.erl:295: The pattern 'true' can never match the type 'false' +comparisons.erl:296: The pattern 'true' can never match the type 'false' +comparisons.erl:311: The pattern 'true' can never match the type 'false' +comparisons.erl:312: The pattern 'true' can never match the type 'false' +comparisons.erl:313: The pattern 'false' can never match the type 'true' +comparisons.erl:314: The pattern 'false' can never match the type 'true' +comparisons.erl:44: The pattern 'false' can never match the type 'true' +comparisons.erl:45: The pattern 'false' can never match the type 'true' +comparisons.erl:46: The pattern 'true' can never match the type 'false' +comparisons.erl:47: The pattern 'true' can never match the type 'false' +comparisons.erl:48: The pattern 'false' can never match the type 'true' +comparisons.erl:49: The pattern 'false' can never match the type 'true' +comparisons.erl:50: The pattern 'true' can never match the type 'false' +comparisons.erl:51: The pattern 'true' can never match the type 'false' +comparisons.erl:52: The pattern 'false' can never match the type 'true' +comparisons.erl:53: The pattern 'false' can never match the type 'true' +comparisons.erl:54: The pattern 'true' can never match the type 'false' +comparisons.erl:55: The pattern 'true' can never match the type 'false' +comparisons.erl:69: The pattern 'false' can never match the type 'true' +comparisons.erl:70: The pattern 'false' can never match the type 'true' +comparisons.erl:71: The pattern 'true' can never match the type 'false' +comparisons.erl:72: The pattern 'true' can never match the type 'false' +comparisons.erl:73: The pattern 'false' can never match the type 'true' +comparisons.erl:74: The pattern 'false' can never match the type 'true' +comparisons.erl:75: The pattern 'true' can never match the type 'false' +comparisons.erl:76: The pattern 'true' can never match the type 'false' +comparisons.erl:77: The pattern 'false' can never match the type 'true' +comparisons.erl:78: The pattern 'false' can never match the type 'true' +comparisons.erl:79: The pattern 'true' can never match the type 'false' +comparisons.erl:80: The pattern 'true' can never match the type 'false' +comparisons.erl:94: The pattern 'false' can never match the type 'true' +comparisons.erl:95: The pattern 'false' can never match the type 'true' +comparisons.erl:96: The pattern 'true' can never match the type 'false' +comparisons.erl:97: The pattern 'true' can never match the type 'false' +comparisons.erl:98: The pattern 'false' can never match the type 'true' +comparisons.erl:99: The pattern 'false' can never match the type 'true' diff --git a/lib/dialyzer/test/small_SUITE_data/results/failing_funs b/lib/dialyzer/test/small_SUITE_data/results/failing_funs new file mode 100644 index 0000000000..a1fb22cbc6 --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/results/failing_funs @@ -0,0 +1,20 @@ + +failing_funs.erl:101: The created fun has no local return +failing_funs.erl:104: The created fun has no local return +failing_funs.erl:127: The created fun has no local return +failing_funs.erl:135: The created fun has no local return +failing_funs.erl:138: The created fun has no local return +failing_funs.erl:13: Function foo3/0 has no local return +failing_funs.erl:13: The pattern 'b' can never match the type 'a' +failing_funs.erl:161: The created fun has no local return +failing_funs.erl:169: The created fun has no local return +failing_funs.erl:172: The created fun has no local return +failing_funs.erl:17: The pattern 'b' can never match the type 'a' +failing_funs.erl:195: The created fun has no local return +failing_funs.erl:203: The created fun has no local return +failing_funs.erl:206: The created fun has no local return +failing_funs.erl:229: The created fun has no local return +failing_funs.erl:55: The created fun has no local return +failing_funs.erl:62: The created fun has no local return +failing_funs.erl:69: The created fun has no local return +failing_funs.erl:76: The created fun has no local return diff --git a/lib/dialyzer/test/small_SUITE_data/results/my_sofs b/lib/dialyzer/test/small_SUITE_data/results/my_sofs index bfee0bce0d..bc97c08d62 100644 --- a/lib/dialyzer/test/small_SUITE_data/results/my_sofs +++ b/lib/dialyzer/test/small_SUITE_data/results/my_sofs @@ -1,3 +1,3 @@ -my_sofs.erl:34: The pattern {'Set', _, _} can never match the type #OrdSet{} -my_sofs.erl:54: The pattern {'Set', _, _} can never match the type #OrdSet{} +my_sofs.erl:34: The pattern {'Set', _, _} can never match the type #'OrdSet'{} +my_sofs.erl:54: The pattern {'Set', _, _} can never match the type #'OrdSet'{} diff --git a/lib/dialyzer/test/small_SUITE_data/src/common_eunit.erl b/lib/dialyzer/test/small_SUITE_data/src/common_eunit.erl new file mode 100644 index 0000000000..bca390068e --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/src/common_eunit.erl @@ -0,0 +1,121 @@ +%%===================================================================== +%% Program with an erroneous type declaration that caused dialyzer to +%% go into an infinite loop. There are some comments that explain the +%% symptoms and the culprit: the return of test_fun() is erroneous and +%% its type should read +%% fun((config()) -> test_rep() | [test_rep()]) +%% instead. But this should not throw dialyzer into an infinite loop. +%% This concerned dialyzer in R14B02 (and probably prior). +%%===================================================================== +-module(common_eunit). + +-export([expand_cases/2]). + +-type test_name() :: atom() | {'group', atom()}. + +-type test_rep() :: {{atom(), atom(), arity()}, fun()} + | {'setup', fun(), fun()} + | {'setup', fun(), fun(), fun()} + | {atom(), test_rep()} + | {atom(), term(), test_rep()}. + +-type config() :: [proplists:property()]. + +-type control() :: tuple() | atom(). + +%% The combination of the following type and the (erroneous) spec for +%% expand_cases/2 is the reason for the infinite loop in dialyzer. +-type test_fun() :: fun((config()) -> test_rep()). + +%% If one comments out this spec the infinite loop disappears. +-spec expand_cases(atom(), test_name() | [test_name()]) -> test_fun(). +expand_cases(Module, Cases) -> + if is_list(Cases) -> + TestFuns = [expand_case(Module, Case) || Case <- Cases], + fun(Config) -> [F(Config) || F <- TestFuns] end; + is_atom(Cases); is_tuple(Cases) -> + expand_cases(Module, [Cases]) + end. + +-spec expand_case(atom(), test_name()) -> test_fun(). +expand_case(Module, CaseName) when is_atom(CaseName) -> + TestFun = fun(Config) -> + {{Module, CaseName, 1}, + fun() -> apply(Module, CaseName, [Config]) end} + end, + setup_wrapper(Module, TestFun, {init_per_testcase, [CaseName]}, + {end_per_testcase, [CaseName]}); +expand_case(Module, {group, GroupName}) -> + {Control, Cases} = group_specification(Module, GroupName), + TestFun = control_wrapper(Control, expand_cases(Module, Cases)), + setup_wrapper(Module, TestFun, {init_per_group, [GroupName]}, + {end_per_group, [GroupName]}). + +-spec control_wrapper([control()], test_fun()) -> test_fun(). +control_wrapper([Control|T], TestFun0) -> + TestFun1 = control_wrapper(T, TestFun0), + fun(Config) -> + case Control of + parallel -> + {inparallel, TestFun1(Config)}; + sequence -> + {inorder, TestFun1(Config)}; + {timetrap, Time} -> + Seconds = case Time of + {hours, Hs} -> Hs * 60 * 60; + {minutes, Ms} -> Ms * 60; + {seconds, Ss} -> Ss; + MSs -> MSs / 1000 + end, + {timeout, Seconds, TestFun1(Config)}; + C when is_atom(C) -> + {C, TestFun1(Config)}; + {C, Arg} -> + {C, Arg, TestFun1(Config)} + end + end; +control_wrapper([], TestFun) -> + TestFun. + +-spec setup_wrapper(atom(), test_fun(), Callback, Callback) -> test_fun() + when Callback :: {atom(), list()}. +setup_wrapper(Module, TestFun, {Setup, SA}, {Cleanup, CA}) -> + case erlang:function_exported(Module, Setup, length(SA) + 1) of + true -> + case erlang:function_exported(Module, Cleanup, length(CA) + 1) of + true -> + fun(Config0) -> + {setup, + fun() -> + apply(Module, Setup, SA ++ [Config0]) + end, + fun(Config1) -> + apply(Module, Cleanup, CA ++ [Config1]) + end, + TestFun} + end; + false -> + fun(Config) -> + {setup, + fun() -> + apply(Module, Setup, SA ++ [Config]) + end, + TestFun} + end + end; + false -> + TestFun + end. + +-spec group_specification(atom(), atom()) -> {[control()], [test_name()]}. +group_specification(Module, GroupName) -> + case lists:keyfind(GroupName, 1, Module:groups()) of + {_, Control, Cases} when is_list(Control), is_list(Cases) -> + {Control, Cases}; + {_, Cases} when is_list(Cases) -> + {[], Cases}; + false -> + exit({missing_group, GroupName}); + _ -> + exit({bad_group_spec, GroupName}) + end. diff --git a/lib/dialyzer/test/small_SUITE_data/src/comparisons.erl b/lib/dialyzer/test/small_SUITE_data/src/comparisons.erl new file mode 100644 index 0000000000..70e3cb6af4 --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/src/comparisons.erl @@ -0,0 +1,322 @@ +-module(comparisons). + +-compile(export_all). + +-define(r, get(r)). + +integer() -> integer(?r). +integer(X) when is_integer(X) -> X. + +mfloat() -> float(?r). +mfloat(X) when is_float(X) -> X. + +atom() -> atom(?r). +atom(X) when is_atom(X) -> X. + +tuple() -> tuple(?r). +tuple(X) when is_tuple(X) -> X. + +list() -> list(?r). +list(X) when is_list(X) -> X. + +i() -> integer(). +f() -> mfloat(). +n() -> case ?r of 1 -> i(); 2 -> f() end. +a() -> atom(). +t() -> tuple(). +l() -> list(). +na() -> case ?r of 1 -> n(); 2 -> a() end. +at() -> case ?r of 1 -> t(); 2 -> a() end. +tl() -> case ?r of 1 -> t(); 2 -> l() end. + +test_i_ll_i() -> case i() < i() of true -> maybe; false -> maybe_too end. +test_i_le_i() -> case i() =< i() of true -> maybe; false -> maybe_too end. +test_i_gg_i() -> case i() > i() of true -> maybe; false -> maybe_too end. +test_i_ge_i() -> case i() >= i() of true -> maybe; false -> maybe_too end. +test_i_ll_f() -> case i() < f() of true -> maybe; false -> maybe_too end. +test_i_le_f() -> case i() =< f() of true -> maybe; false -> maybe_too end. +test_i_gg_f() -> case i() > f() of true -> maybe; false -> maybe_too end. +test_i_ge_f() -> case i() >= f() of true -> maybe; false -> maybe_too end. +test_i_ll_n() -> case i() < n() of true -> maybe; false -> maybe_too end. +test_i_le_n() -> case i() =< n() of true -> maybe; false -> maybe_too end. +test_i_gg_n() -> case i() > n() of true -> maybe; false -> maybe_too end. +test_i_ge_n() -> case i() >= n() of true -> maybe; false -> maybe_too end. +test_i_ll_a() -> case i() < a() of true -> always; false -> never end. +test_i_le_a() -> case i() =< a() of true -> always; false -> never end. +test_i_gg_a() -> case i() > a() of true -> never; false -> always end. +test_i_ge_a() -> case i() >= a() of true -> never; false -> always end. +test_i_ll_t() -> case i() < t() of true -> always; false -> never end. +test_i_le_t() -> case i() =< t() of true -> always; false -> never end. +test_i_gg_t() -> case i() > t() of true -> never; false -> always end. +test_i_ge_t() -> case i() >= t() of true -> never; false -> always end. +test_i_ll_l() -> case i() < l() of true -> always; false -> never end. +test_i_le_l() -> case i() =< l() of true -> always; false -> never end. +test_i_gg_l() -> case i() > l() of true -> never; false -> always end. +test_i_ge_l() -> case i() >= l() of true -> never; false -> always end. + +test_f_ll_i() -> case f() < i() of true -> maybe; false -> maybe_too end. +test_f_le_i() -> case f() =< i() of true -> maybe; false -> maybe_too end. +test_f_gg_i() -> case f() > i() of true -> maybe; false -> maybe_too end. +test_f_ge_i() -> case f() >= i() of true -> maybe; false -> maybe_too end. +test_f_ll_f() -> case f() < f() of true -> maybe; false -> maybe_too end. +test_f_le_f() -> case f() =< f() of true -> maybe; false -> maybe_too end. +test_f_gg_f() -> case f() > f() of true -> maybe; false -> maybe_too end. +test_f_ge_f() -> case f() >= f() of true -> maybe; false -> maybe_too end. +test_f_ll_n() -> case f() < n() of true -> maybe; false -> maybe_too end. +test_f_le_n() -> case f() =< n() of true -> maybe; false -> maybe_too end. +test_f_gg_n() -> case f() > n() of true -> maybe; false -> maybe_too end. +test_f_ge_n() -> case f() >= n() of true -> maybe; false -> maybe_too end. +test_f_ll_a() -> case f() < a() of true -> always; false -> never end. +test_f_le_a() -> case f() =< a() of true -> always; false -> never end. +test_f_gg_a() -> case f() > a() of true -> never; false -> always end. +test_f_ge_a() -> case f() >= a() of true -> never; false -> always end. +test_f_ll_t() -> case f() < t() of true -> always; false -> never end. +test_f_le_t() -> case f() =< t() of true -> always; false -> never end. +test_f_gg_t() -> case f() > t() of true -> never; false -> always end. +test_f_ge_t() -> case f() >= t() of true -> never; false -> always end. +test_f_ll_l() -> case f() < l() of true -> always; false -> never end. +test_f_le_l() -> case f() =< l() of true -> always; false -> never end. +test_f_gg_l() -> case f() > l() of true -> never; false -> always end. +test_f_ge_l() -> case f() >= l() of true -> never; false -> always end. + +test_n_ll_i() -> case n() < i() of true -> maybe; false -> maybe_too end. +test_n_le_i() -> case n() =< i() of true -> maybe; false -> maybe_too end. +test_n_gg_i() -> case n() > i() of true -> maybe; false -> maybe_too end. +test_n_ge_i() -> case n() >= i() of true -> maybe; false -> maybe_too end. +test_n_ll_f() -> case n() < f() of true -> maybe; false -> maybe_too end. +test_n_le_f() -> case n() =< f() of true -> maybe; false -> maybe_too end. +test_n_gg_f() -> case n() > f() of true -> maybe; false -> maybe_too end. +test_n_ge_f() -> case n() >= f() of true -> maybe; false -> maybe_too end. +test_n_ll_n() -> case n() < n() of true -> maybe; false -> maybe_too end. +test_n_le_n() -> case n() =< n() of true -> maybe; false -> maybe_too end. +test_n_gg_n() -> case n() > n() of true -> maybe; false -> maybe_too end. +test_n_ge_n() -> case n() >= n() of true -> maybe; false -> maybe_too end. +test_n_ll_a() -> case n() < a() of true -> always; false -> never end. +test_n_le_a() -> case n() =< a() of true -> always; false -> never end. +test_n_gg_a() -> case n() > a() of true -> never; false -> always end. +test_n_ge_a() -> case n() >= a() of true -> never; false -> always end. +test_n_ll_t() -> case n() < t() of true -> always; false -> never end. +test_n_le_t() -> case n() =< t() of true -> always; false -> never end. +test_n_gg_t() -> case n() > t() of true -> never; false -> always end. +test_n_ge_t() -> case n() >= t() of true -> never; false -> always end. +test_n_ll_l() -> case n() < l() of true -> always; false -> never end. +test_n_le_l() -> case n() =< l() of true -> always; false -> never end. +test_n_gg_l() -> case n() > l() of true -> never; false -> always end. +test_n_ge_l() -> case n() >= l() of true -> never; false -> always end. + +test_a_ll_i() -> case a() < i() of true -> never; false -> always end. +test_a_le_i() -> case a() =< i() of true -> never; false -> always end. +test_a_gg_i() -> case a() > i() of true -> always; false -> never end. +test_a_ge_i() -> case a() >= i() of true -> always; false -> never end. +test_a_ll_f() -> case a() < f() of true -> never; false -> always end. +test_a_le_f() -> case a() =< f() of true -> never; false -> always end. +test_a_gg_f() -> case a() > f() of true -> always; false -> never end. +test_a_ge_f() -> case a() >= f() of true -> always; false -> never end. +test_a_ll_n() -> case a() < n() of true -> never; false -> always end. +test_a_le_n() -> case a() =< n() of true -> never; false -> always end. +test_a_gg_n() -> case a() > n() of true -> always; false -> never end. +test_a_ge_n() -> case a() >= n() of true -> always; false -> never end. +test_a_ll_a() -> case a() < a() of true -> maybe; false -> maybe_too end. +test_a_le_a() -> case a() =< a() of true -> maybe; false -> maybe_too end. +test_a_gg_a() -> case a() > a() of true -> maybe; false -> maybe_too end. +test_a_ge_a() -> case a() >= a() of true -> maybe; false -> maybe_too end. +test_a_ll_t() -> case a() < t() of true -> always; false -> never end. +test_a_le_t() -> case a() =< t() of true -> always; false -> never end. +test_a_gg_t() -> case a() > t() of true -> never; false -> always end. +test_a_ge_t() -> case a() >= t() of true -> never; false -> always end. +test_a_ll_l() -> case a() < l() of true -> always; false -> never end. +test_a_le_l() -> case a() =< l() of true -> always; false -> never end. +test_a_gg_l() -> case a() > l() of true -> never; false -> always end. +test_a_ge_l() -> case a() >= l() of true -> never; false -> always end. + +test_t_ll_i() -> case t() < i() of true -> never; false -> always end. +test_t_le_i() -> case t() =< i() of true -> never; false -> always end. +test_t_gg_i() -> case t() > i() of true -> always; false -> never end. +test_t_ge_i() -> case t() >= i() of true -> always; false -> never end. +test_t_ll_f() -> case t() < f() of true -> never; false -> always end. +test_t_le_f() -> case t() =< f() of true -> never; false -> always end. +test_t_gg_f() -> case t() > f() of true -> always; false -> never end. +test_t_ge_f() -> case t() >= f() of true -> always; false -> never end. +test_t_ll_n() -> case t() < n() of true -> never; false -> always end. +test_t_le_n() -> case t() =< n() of true -> never; false -> always end. +test_t_gg_n() -> case t() > n() of true -> always; false -> never end. +test_t_ge_n() -> case t() >= n() of true -> always; false -> never end. +test_t_ll_a() -> case t() < a() of true -> never; false -> always end. +test_t_le_a() -> case t() =< a() of true -> never; false -> always end. +test_t_gg_a() -> case t() > a() of true -> always; false -> never end. +test_t_ge_a() -> case t() >= a() of true -> always; false -> never end. +test_t_ll_t() -> case t() < t() of true -> maybe; false -> maybe_too end. +test_t_le_t() -> case t() =< t() of true -> maybe; false -> maybe_too end. +test_t_gg_t() -> case t() > t() of true -> maybe; false -> maybe_too end. +test_t_ge_t() -> case t() >= t() of true -> maybe; false -> maybe_too end. +test_t_ll_l() -> case t() < l() of true -> always; false -> never end. +test_t_le_l() -> case t() =< l() of true -> always; false -> never end. +test_t_gg_l() -> case t() > l() of true -> never; false -> always end. +test_t_ge_l() -> case t() >= l() of true -> never; false -> always end. + +test_l_ll_i() -> case l() < i() of true -> never; false -> always end. +test_l_le_i() -> case l() =< i() of true -> never; false -> always end. +test_l_gg_i() -> case l() > i() of true -> always; false -> never end. +test_l_ge_i() -> case l() >= i() of true -> always; false -> never end. +test_l_ll_f() -> case l() < f() of true -> never; false -> always end. +test_l_le_f() -> case l() =< f() of true -> never; false -> always end. +test_l_gg_f() -> case l() > f() of true -> always; false -> never end. +test_l_ge_f() -> case l() >= f() of true -> always; false -> never end. +test_l_ll_n() -> case l() < n() of true -> never; false -> always end. +test_l_le_n() -> case l() =< n() of true -> never; false -> always end. +test_l_gg_n() -> case l() > n() of true -> always; false -> never end. +test_l_ge_n() -> case l() >= n() of true -> always; false -> never end. +test_l_ll_a() -> case l() < a() of true -> never; false -> always end. +test_l_le_a() -> case l() =< a() of true -> never; false -> always end. +test_l_gg_a() -> case l() > a() of true -> always; false -> never end. +test_l_ge_a() -> case l() >= a() of true -> always; false -> never end. +test_l_ll_t() -> case l() < t() of true -> never; false -> always end. +test_l_le_t() -> case l() =< t() of true -> never; false -> always end. +test_l_gg_t() -> case l() > t() of true -> always; false -> never end. +test_l_ge_t() -> case l() >= t() of true -> always; false -> never end. +test_l_ll_l() -> case l() < l() of true -> maybe; false -> maybe_too end. +test_l_le_l() -> case l() =< l() of true -> maybe; false -> maybe_too end. +test_l_gg_l() -> case l() > l() of true -> maybe; false -> maybe_too end. +test_l_ge_l() -> case l() >= l() of true -> maybe; false -> maybe_too end. + +test_n_ll_na() -> case n() < na() of true -> maybe; false -> maybe_too end. +test_n_le_na() -> case n() =< na() of true -> maybe; false -> maybe_too end. +test_n_gg_na() -> case n() > na() of true -> maybe; false -> maybe_too end. +test_n_ge_na() -> case n() >= na() of true -> maybe; false -> maybe_too end. +test_n_ll_at() -> case n() < at() of true -> always; false -> never end. +test_n_le_at() -> case n() =< at() of true -> always; false -> never end. +test_n_gg_at() -> case n() > at() of true -> never; false -> always end. +test_n_ge_at() -> case n() >= at() of true -> never; false -> always end. +test_n_ll_tl() -> case n() < tl() of true -> always; false -> never end. +test_n_le_tl() -> case n() =< tl() of true -> always; false -> never end. +test_n_gg_tl() -> case n() > tl() of true -> never; false -> always end. +test_n_ge_tl() -> case n() >= tl() of true -> never; false -> always end. + +test_a_ll_na() -> case a() < na() of true -> maybe; false -> maybe_too end. +test_a_le_na() -> case a() =< na() of true -> maybe; false -> maybe_too end. +test_a_gg_na() -> case a() > na() of true -> maybe; false -> maybe_too end. +test_a_ge_na() -> case a() >= na() of true -> maybe; false -> maybe_too end. +test_a_ll_at() -> case a() < at() of true -> maybe; false -> maybe_too end. +test_a_le_at() -> case a() =< at() of true -> maybe; false -> maybe_too end. +test_a_gg_at() -> case a() > at() of true -> maybe; false -> maybe_too end. +test_a_ge_at() -> case a() >= at() of true -> maybe; false -> maybe_too end. +test_a_ll_tl() -> case a() < tl() of true -> always; false -> never end. +test_a_le_tl() -> case a() =< tl() of true -> always; false -> never end. +test_a_gg_tl() -> case a() > tl() of true -> never; false -> always end. +test_a_ge_tl() -> case a() >= tl() of true -> never; false -> always end. + +test_t_ll_na() -> case t() < na() of true -> never; false -> always end. +test_t_le_na() -> case t() =< na() of true -> never; false -> always end. +test_t_gg_na() -> case t() > na() of true -> always; false -> never end. +test_t_ge_na() -> case t() >= na() of true -> always; false -> never end. +test_t_ll_at() -> case t() < at() of true -> maybe; false -> maybe_too end. +test_t_le_at() -> case t() =< at() of true -> maybe; false -> maybe_too end. +test_t_gg_at() -> case t() > at() of true -> maybe; false -> maybe_too end. +test_t_ge_at() -> case t() >= at() of true -> maybe; false -> maybe_too end. +test_t_ll_tl() -> case t() < tl() of true -> maybe; false -> maybe_too end. +test_t_le_tl() -> case t() =< tl() of true -> maybe; false -> maybe_too end. +test_t_gg_tl() -> case t() > tl() of true -> maybe; false -> maybe_too end. +test_t_ge_tl() -> case t() >= tl() of true -> maybe; false -> maybe_too end. + +test_l_ll_na() -> case l() < na() of true -> never; false -> always end. +test_l_le_na() -> case l() =< na() of true -> never; false -> always end. +test_l_gg_na() -> case l() > na() of true -> always; false -> never end. +test_l_ge_na() -> case l() >= na() of true -> always; false -> never end. +test_l_ll_at() -> case l() < at() of true -> never; false -> always end. +test_l_le_at() -> case l() =< at() of true -> never; false -> always end. +test_l_gg_at() -> case l() > at() of true -> always; false -> never end. +test_l_ge_at() -> case l() >= at() of true -> always; false -> never end. +test_l_ll_tl() -> case l() < tl() of true -> maybe; false -> maybe_too end. +test_l_le_tl() -> case l() =< tl() of true -> maybe; false -> maybe_too end. +test_l_gg_tl() -> case l() > tl() of true -> maybe; false -> maybe_too end. +test_l_ge_tl() -> case l() >= tl() of true -> maybe; false -> maybe_too end. + +test_na_ll_n() -> case na() < n() of true -> maybe; false -> maybe_too end. +test_na_le_n() -> case na() =< n() of true -> maybe; false -> maybe_too end. +test_na_gg_n() -> case na() > n() of true -> maybe; false -> maybe_too end. +test_na_ge_n() -> case na() >= n() of true -> maybe; false -> maybe_too end. +test_na_ll_a() -> case na() < a() of true -> maybe; false -> maybe_too end. +test_na_le_a() -> case na() =< a() of true -> maybe; false -> maybe_too end. +test_na_gg_a() -> case na() > a() of true -> maybe; false -> maybe_too end. +test_na_ge_a() -> case na() >= a() of true -> maybe; false -> maybe_too end. +test_na_ll_t() -> case na() < t() of true -> always; false -> never end. +test_na_le_t() -> case na() =< t() of true -> always; false -> never end. +test_na_gg_t() -> case na() > t() of true -> never; false -> always end. +test_na_ge_t() -> case na() >= t() of true -> never; false -> always end. +test_na_ll_l() -> case na() < l() of true -> always; false -> never end. +test_na_le_l() -> case na() =< l() of true -> always; false -> never end. +test_na_gg_l() -> case na() > l() of true -> never; false -> always end. +test_na_ge_l() -> case na() >= l() of true -> never; false -> always end. + +test_at_ll_n() -> case at() < n() of true -> never; false -> always end. +test_at_le_n() -> case at() =< n() of true -> never; false -> always end. +test_at_gg_n() -> case at() > n() of true -> always; false -> never end. +test_at_ge_n() -> case at() >= n() of true -> always; false -> never end. +test_at_ll_a() -> case at() < a() of true -> maybe; false -> maybe_too end. +test_at_le_a() -> case at() =< a() of true -> maybe; false -> maybe_too end. +test_at_gg_a() -> case at() > a() of true -> maybe; false -> maybe_too end. +test_at_ge_a() -> case at() >= a() of true -> maybe; false -> maybe_too end. +test_at_ll_t() -> case at() < t() of true -> maybe; false -> maybe_too end. +test_at_le_t() -> case at() =< t() of true -> maybe; false -> maybe_too end. +test_at_gg_t() -> case at() > t() of true -> maybe; false -> maybe_too end. +test_at_ge_t() -> case at() >= t() of true -> maybe; false -> maybe_too end. +test_at_ll_l() -> case at() < l() of true -> always; false -> never end. +test_at_le_l() -> case at() =< l() of true -> always; false -> never end. +test_at_gg_l() -> case at() > l() of true -> never; false -> always end. +test_at_ge_l() -> case at() >= l() of true -> never; false -> always end. + +test_tl_ll_n() -> case tl() < n() of true -> never; false -> always end. +test_tl_le_n() -> case tl() =< n() of true -> never; false -> always end. +test_tl_gg_n() -> case tl() > n() of true -> always; false -> never end. +test_tl_ge_n() -> case tl() >= n() of true -> always; false -> never end. +test_tl_ll_a() -> case tl() < a() of true -> never; false -> always end. +test_tl_le_a() -> case tl() =< a() of true -> never; false -> always end. +test_tl_gg_a() -> case tl() > a() of true -> always; false -> never end. +test_tl_ge_a() -> case tl() >= a() of true -> always; false -> never end. +test_tl_ll_t() -> case tl() < t() of true -> maybe; false -> maybe_too end. +test_tl_le_t() -> case tl() =< t() of true -> maybe; false -> maybe_too end. +test_tl_gg_t() -> case tl() > t() of true -> maybe; false -> maybe_too end. +test_tl_ge_t() -> case tl() >= t() of true -> maybe; false -> maybe_too end. +test_tl_ll_l() -> case tl() < l() of true -> maybe; false -> maybe_too end. +test_tl_le_l() -> case tl() =< l() of true -> maybe; false -> maybe_too end. +test_tl_gg_l() -> case tl() > l() of true -> maybe; false -> maybe_too end. +test_tl_ge_l() -> case tl() >= l() of true -> maybe; false -> maybe_too end. + +test_na_ll_na() -> case na() < na() of true -> maybe; false -> maybe_too end. +test_na_le_na() -> case na() =< na() of true -> maybe; false -> maybe_too end. +test_na_gg_na() -> case na() > na() of true -> maybe; false -> maybe_too end. +test_na_ge_na() -> case na() >= na() of true -> maybe; false -> maybe_too end. +test_na_ll_at() -> case na() < at() of true -> maybe; false -> maybe_too end. +test_na_le_at() -> case na() =< at() of true -> maybe; false -> maybe_too end. +test_na_gg_at() -> case na() > at() of true -> maybe; false -> maybe_too end. +test_na_ge_at() -> case na() >= at() of true -> maybe; false -> maybe_too end. +test_na_ll_tl() -> case na() < tl() of true -> always; false -> never end. +test_na_le_tl() -> case na() =< tl() of true -> always; false -> never end. +test_na_gg_tl() -> case na() > tl() of true -> never; false -> always end. +test_na_ge_tl() -> case na() >= tl() of true -> never; false -> always end. + +test_at_ll_na() -> case at() < na() of true -> maybe; false -> maybe_too end. +test_at_le_na() -> case at() =< na() of true -> maybe; false -> maybe_too end. +test_at_gg_na() -> case at() > na() of true -> maybe; false -> maybe_too end. +test_at_ge_na() -> case at() >= na() of true -> maybe; false -> maybe_too end. +test_at_ll_at() -> case at() < at() of true -> maybe; false -> maybe_too end. +test_at_le_at() -> case at() =< at() of true -> maybe; false -> maybe_too end. +test_at_gg_at() -> case at() > at() of true -> maybe; false -> maybe_too end. +test_at_ge_at() -> case at() >= at() of true -> maybe; false -> maybe_too end. +test_at_ll_tl() -> case at() < tl() of true -> maybe; false -> maybe_too end. +test_at_le_tl() -> case at() =< tl() of true -> maybe; false -> maybe_too end. +test_at_gg_tl() -> case at() > tl() of true -> maybe; false -> maybe_too end. +test_at_ge_tl() -> case at() >= tl() of true -> maybe; false -> maybe_too end. + +test_tl_ll_na() -> case tl() < na() of true -> never; false -> always end. +test_tl_le_na() -> case tl() =< na() of true -> never; false -> always end. +test_tl_gg_na() -> case tl() > na() of true -> always; false -> never end. +test_tl_ge_na() -> case tl() >= na() of true -> always; false -> never end. +test_tl_ll_at() -> case tl() < at() of true -> maybe; false -> maybe_too end. +test_tl_le_at() -> case tl() =< at() of true -> maybe; false -> maybe_too end. +test_tl_gg_at() -> case tl() > at() of true -> maybe; false -> maybe_too end. +test_tl_ge_at() -> case tl() >= at() of true -> maybe; false -> maybe_too end. +test_tl_ll_tl() -> case tl() < tl() of true -> maybe; false -> maybe_too end. +test_tl_le_tl() -> case tl() =< tl() of true -> maybe; false -> maybe_too end. +test_tl_gg_tl() -> case tl() > tl() of true -> maybe; false -> maybe_too end. +test_tl_ge_tl() -> case tl() >= tl() of true -> maybe; false -> maybe_too end. diff --git a/lib/dialyzer/test/small_SUITE_data/src/failing_funs.erl b/lib/dialyzer/test/small_SUITE_data/src/failing_funs.erl new file mode 100644 index 0000000000..1784c4a494 --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/src/failing_funs.erl @@ -0,0 +1,250 @@ +-module(failing_funs). + +-compile(export_all). + +% Crashes with system call. No spec. +foo1() -> halt(). + +% Crashes with system call. With spec. +-spec foo2() -> no_return(). +foo2() -> halt(). + +% Crashes on its own. No spec. +foo3() -> case a of b -> ok end. + +% Crashes on its own. With spec. +-spec foo4() -> no_return(). +foo4() -> case a of b -> ok end. + +% Creates fun that crashes with system call. No spec. +foo5() -> fun() -> halt() end. + +% Creates fun that crashes with system call. With spec. +-spec foo6() -> fun(() -> no_return()). +foo6() -> fun() -> halt() end. + +% Creates fun from named fun that will crash. Neither have spec. +foo7() -> fun foo1/0. + +% Creates fun from named fun that will crash. Has spec. +-spec foo8() -> fun(() -> no_return()). +foo8() -> fun foo1/0. + +% Creates fun from named fun that will crash. Named has spec. +foo9() -> fun foo2/0. + +% Creates fun from named fun that will crash. Both have specs. +-spec foo10() -> fun(() -> no_return()). +foo10() -> fun foo2/0. + +% Creates fun from named fun that will crash. Neither have spec. +foo11() -> fun foo3/0. + +% Creates fun from named fun that will crash. Has spec. +-spec foo12() -> fun(() -> no_return()). +foo12() -> fun foo3/0. + +% Creates fun from named fun that will crash. Named has spec. +foo13() -> fun foo4/0. + +% Creates fun from named fun that will crash. Both have specs. +-spec foo14() -> fun(() -> no_return()). +foo14() -> fun foo4/0. + +% Creates fun calling a named fun that will crash. Neither have spec. +foo15() -> fun() -> foo1() end. + +% Creates fun calling a named fun that will crash. Has spec. +-spec foo16() -> fun(() -> no_return()). +foo16() -> fun() -> foo1() end. + +% Creates fun calling a named fun that will crash. Named has spec. +foo17() -> fun() -> foo2() end. + +% Creates fun calling a named fun that will crash. Both have specs. +-spec foo18() -> fun(() -> no_return()). +foo18() -> fun() -> foo2() end. + +% Creates fun calling a named fun that will crash. Neither have spec. +foo19() -> fun() -> foo3() end. + +% Creates fun calling a named fun that will crash. Has spec. +-spec foo20() -> fun(() -> no_return()). +foo20() -> fun() -> foo3() end. + +% Creates fun calling a named fun that will crash. Named has spec. +foo21() -> fun() -> foo4() end. + +% Creates fun calling a named fun that will crash. Both have specs. +-spec foo22() -> fun(() -> no_return()). +foo22() -> fun() -> foo4() end. + +% Creates two funs with no local return and will return one or die. No spec. +foo23() -> + Bomb = fun() -> halt() end, + case get(42) of + a -> Bomb(); + b -> fun() -> halt() end + end. + +% Creates two funs with no local return and will return one or die. With spec. +-spec foo24() -> fun(() -> no_return()). +foo24() -> + Bomb = fun() -> halt() end, + case get(42) of + a -> Bomb(); + b -> fun() -> halt() end + end. + +% Creates two funs with no local return and will return one or die. No spec. +foo25() -> + Bomb = fun() -> foo1() end, + case get(42) of + a -> Bomb(); + b -> fun() -> foo1() end + end. + +% Creates two funs with no local return and will return one or die. With spec. +-spec foo26() -> fun(() -> no_return()). +foo26() -> + Bomb = fun foo1/0, + case get(42) of + a -> Bomb(); + b -> fun foo1/0 + end. + +% Creates two funs with no local return and will return one or die. No spec. +foo27() -> + Bomb = fun foo1/0, + case get(42) of + a -> Bomb(); + b -> fun foo1/0 + end. + +% Creates two funs with no local return and will return one or die. With spec. +-spec foo28() -> fun(() -> no_return()). +foo28() -> + Bomb = fun() -> foo1() end, + case get(42) of + a -> Bomb(); + b -> fun() -> foo1() end + end. + +% Creates two funs with no local return and will return one or die. No spec. +foo29() -> + Bomb = fun() -> foo2() end, + case get(42) of + a -> Bomb(); + b -> fun() -> foo2() end + end. + +% Creates two funs with no local return and will return one or die. With spec. +-spec foo30() -> fun(() -> no_return()). +foo30() -> + Bomb = fun foo2/0, + case get(42) of + a -> Bomb(); + b -> fun foo2/0 + end. + +% Creates two funs with no local return and will return one or die. No spec. +foo31() -> + Bomb = fun foo2/0, + case get(42) of + a -> Bomb(); + b -> fun foo2/0 + end. + +% Creates two funs with no local return and will return one or die. With spec. +-spec foo32() -> fun(() -> no_return()). +foo32() -> + Bomb = fun() -> foo2() end, + case get(42) of + a -> Bomb(); + b -> fun() -> foo2() end + end. + +% Creates two funs with no local return and will return one or die. No spec. +foo33() -> + Bomb = fun() -> foo3() end, + case get(42) of + a -> Bomb(); + b -> fun() -> foo3() end + end. + +% Creates two funs with no local return and will return one or die. With spec. +-spec foo34() -> fun(() -> no_return()). +foo34() -> + Bomb = fun foo3/0, + case get(42) of + a -> Bomb(); + b -> fun foo3/0 + end. + +% Creates two funs with no local return and will return one or die. No spec. +foo35() -> + Bomb = fun foo3/0, + case get(42) of + a -> Bomb(); + b -> fun foo3/0 + end. + +% Creates two funs with no local return and will return one or die. With spec. +-spec foo36() -> fun(() -> no_return()). +foo36() -> + Bomb = fun() -> foo3() end, + case get(42) of + a -> Bomb(); + b -> fun() -> foo3() end + end. + +% Creates two funs with no local return and will return one or die. No spec. +foo37() -> + Bomb = fun() -> foo4() end, + case get(42) of + a -> Bomb(); + b -> fun() -> foo4() end + end. + +% Creates two funs with no local return and will return one or die. With spec. +-spec foo38() -> fun(() -> no_return()). +foo38() -> + Bomb = fun foo4/0, + case get(42) of + a -> Bomb(); + b -> fun foo4/0 + end. + +% Creates two funs with no local return and will return one or die. No spec. +foo39() -> + Bomb = fun foo4/0, + case get(42) of + a -> Bomb(); + b -> fun foo4/0 + end. + +% Creates two funs with no local return and will return one or die. With spec. +-spec foo40() -> fun(() -> no_return()). +foo40() -> + Bomb = fun() -> foo4() end, + case get(42) of + a -> Bomb(); + b -> fun() -> foo4() end + end. + +% Obtains two funs with no local return and will return one or die. No spec. +foo41() -> + Bomb = foo5(), + case get(42) of + a -> Bomb(); + b -> foo5() + end. + +% Obtains two funs with no local return and will return one or die. With spec. +-spec foo42() -> fun(() -> no_return()). +foo42() -> + Bomb = foo5(), + case get(42) of + a -> Bomb(); + b -> foo5() + end. diff --git a/lib/dialyzer/test/small_SUITE_data/src/list_to_bitstring.erl b/lib/dialyzer/test/small_SUITE_data/src/list_to_bitstring.erl index 2da708cb15..109aa88f16 100644 --- a/lib/dialyzer/test/small_SUITE_data/src/list_to_bitstring.erl +++ b/lib/dialyzer/test/small_SUITE_data/src/list_to_bitstring.erl @@ -2,7 +2,7 @@ %% From: Ken Robinson %% Date: 28/04/2011, 17:26 %% -%% Program that produced borus "Function has no local return" warnings +%% Program that produced bogus "Function has no local return" warnings %% due to erlang:list_to_bitstring/1 having erroneous hard coded type %% information, namely accepting iolist() instead of bitstrlist(). %% Fixed 29/04/2011. diff --git a/lib/dialyzer/test/small_SUITE_data/src/rebar_no_return.erl b/lib/dialyzer/test/small_SUITE_data/src/rebar_no_return.erl new file mode 100644 index 0000000000..d3b504ae04 --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/src/rebar_no_return.erl @@ -0,0 +1,19 @@ +-module(rebar_no_return). + +-export([t/0]). + +-spec t() -> no_return(). +t() -> + F = log_and_halt("baz"), + F("foo", 123). + +-spec log_and_halt(string()) -> fun((string(),integer()) -> no_return()). +log_and_halt(Msg) -> + fun(_, _) -> + abort(Msg) + end. + +-spec abort(string()) -> no_return(). +abort(Msg) -> + io:format("~s~n", [Msg]), + halt(1). |