From 804df7a55aa2ec49c2001f03aa5f0af1e5f7e18f Mon Sep 17 00:00:00 2001 From: Stavros Aronis Date: Wed, 23 Nov 2011 17:28:57 +0100 Subject: No warnings for underspecs with remote types --- lib/dialyzer/src/dialyzer_contracts.erl | 110 ++++++++++++++++++--- .../test/underspecs_SUITE_data/dialyzer_options | 1 + .../test/underspecs_SUITE_data/results/remote | 9 ++ .../underspecs_SUITE_data/src/remote/remotes1.erl | 61 ++++++++++++ .../src/remote/some_known_remote.erl | 5 + 5 files changed, 171 insertions(+), 15 deletions(-) create mode 100644 lib/dialyzer/test/underspecs_SUITE_data/dialyzer_options create mode 100644 lib/dialyzer/test/underspecs_SUITE_data/results/remote create mode 100644 lib/dialyzer/test/underspecs_SUITE_data/src/remote/remotes1.erl create mode 100644 lib/dialyzer/test/underspecs_SUITE_data/src/remote/some_known_remote.erl diff --git a/lib/dialyzer/src/dialyzer_contracts.erl b/lib/dialyzer/src/dialyzer_contracts.erl index 3469d70a4d..6f83e29a57 100644 --- a/lib/dialyzer/src/dialyzer_contracts.erl +++ b/lib/dialyzer/src/dialyzer_contracts.erl @@ -256,7 +256,7 @@ check_extraneous([C|Cs], SuccType) -> check_extraneous_1(Contract, SuccType) -> CRngs = erl_types:t_elements(erl_types:t_fun_range(Contract)), STRng = erl_types:t_fun_range(SuccType), - %% io:format("CR = ~p\nSR = ~p\n", [CRngs, STRng]), + ?debug("CR = ~p\nSR = ~p\n", [CRngs, STRng]), case [CR || CR <- CRngs, erl_types:t_is_none(erl_types:t_inf(CR, STRng, opaque))] of [] -> ok; CRs -> {error, {extra_range, erl_types:t_sup(CRs), STRng}} @@ -444,7 +444,21 @@ get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract}}|Left], {error, invalid_contract} -> [invalid_contract_warning(MFA, FileLine, Sig, RecDict)|Acc]; {error, {extra_range, ExtraRanges, STRange}} -> - [extra_range_warning(MFA, FileLine, ExtraRanges, STRange)|Acc]; + Warn = + case t_from_forms_without_remote(Contract#contract.forms, + RecDict) of + {ok, NoRemoteType} -> + CRet = erl_types:t_fun_range(NoRemoteType), + erl_types:t_is_subtype(ExtraRanges, CRet); + unsupported -> + true + end, + case Warn of + true -> + [extra_range_warning(MFA, FileLine, ExtraRanges, STRange)|Acc]; + false -> + Acc + end; {error, Msg} -> [{?WARN_CONTRACT_SYNTAX, FileLine, Msg}|Acc]; ok -> @@ -507,26 +521,92 @@ picky_contract_check(CSig0, Sig0, MFA, FileLine, Contract, RecDict, Acc) -> extra_contract_warning({M, F, A}, FileLine, Contract, CSig, Sig, RecDict) -> SigString = lists:flatten(dialyzer_utils:format_sig(Sig, RecDict)), ContractString0 = lists:flatten(dialyzer_utils:format_sig(CSig, RecDict)), - case SigString =:= ContractString0 of + %% The only difference is in record fields containing 'undefined' or not. + IsUndefRecordFieldsRelated = SigString =:= ContractString0, + {IsRemoteTypesRelated, SubtypeRelation} = + is_remote_types_related(Contract, CSig, Sig, RecDict), + case IsUndefRecordFieldsRelated orelse IsRemoteTypesRelated of true -> - %% The only difference is in record fields containing 'undefined' or not. no_warning; false -> ContractString = contract_to_string(Contract), {Tag, Msg} = - case erl_types:t_is_subtype(CSig, Sig) of - true -> + case SubtypeRelation of + contract_is_subtype -> {?WARN_CONTRACT_SUBTYPE, {contract_subtype, [M, F, A, ContractString, SigString]}}; - false -> - case erl_types:t_is_subtype(Sig, CSig) of - true -> - {?WARN_CONTRACT_SUPERTYPE, - {contract_supertype, [M, F, A, ContractString, SigString]}}; - false -> - {?WARN_CONTRACT_NOT_EQUAL, - {contract_diff, [M, F, A, ContractString, SigString]}} - end + contract_is_supertype -> + {?WARN_CONTRACT_SUPERTYPE, + {contract_supertype, [M, F, A, ContractString, SigString]}}; + neither -> + {?WARN_CONTRACT_NOT_EQUAL, + {contract_diff, [M, F, A, ContractString, SigString]}} end, {warning, {Tag, FileLine, Msg}} end. + +is_remote_types_related(Contract, CSig, Sig, RecDict) -> + case erl_types:t_is_subtype(CSig, Sig) of + true -> + {false, contract_is_subtype}; + false -> + case erl_types:t_is_subtype(Sig, CSig) of + true -> + case t_from_forms_without_remote(Contract#contract.forms, RecDict) of + {ok, NoRemoteTypeSig} -> + case blame_remote(CSig, NoRemoteTypeSig, Sig) of + true -> + {true, neither}; + false -> + {false, contract_is_supertype} + end; + unsupported -> + {false, contract_is_supertype} + end; + false -> + {false, neither} + end + end. + +t_from_forms_without_remote([{FType, []}], RecDict) -> + Type0 = erl_types:t_from_form(FType, RecDict), + Map = + fun(Type) -> + case erl_types:t_is_remote(Type) of + true -> erl_types:t_none(); + false -> Type + end + end, + {ok, erl_types:t_map(Map, Type0)}; +t_from_forms_without_remote([{_FType, _Constrs}], _RecDict) -> + %% 'When' constraints + unsupported; +t_from_forms_without_remote(_Forms, _RecDict) -> + %% Lots of forms + unsupported. + +blame_remote(ContractSig, NoRemoteContractSig, Sig) -> + CArgs = erl_types:t_fun_args(ContractSig), + CRange = erl_types:t_fun_range(ContractSig), + NRArgs = erl_types:t_fun_args(NoRemoteContractSig), + NRRange = erl_types:t_fun_range(NoRemoteContractSig), + SArgs = erl_types:t_fun_args(Sig), + SRange = erl_types:t_fun_range(Sig), + blame_remote_list([CRange|CArgs], [NRRange|NRArgs], [SRange|SArgs]). + +blame_remote_list([], [], []) -> + true; +blame_remote_list([CArg|CArgs], [NRArg|NRArgs], [SArg|SArgs]) -> + case erl_types:t_is_equal(CArg, NRArg) of + true -> + case not erl_types:t_is_equal(CArg, SArg) of + true -> false; + false -> blame_remote_list(CArgs, NRArgs, SArgs) + end; + false -> + case erl_types:t_is_subtype(SArg, NRArg) + andalso not erl_types:t_is_subtype(NRArg, SArg) of + true -> false; + false -> blame_remote_list(CArgs, NRArgs, SArgs) + end + end. diff --git a/lib/dialyzer/test/underspecs_SUITE_data/dialyzer_options b/lib/dialyzer/test/underspecs_SUITE_data/dialyzer_options new file mode 100644 index 0000000000..f7197ac30f --- /dev/null +++ b/lib/dialyzer/test/underspecs_SUITE_data/dialyzer_options @@ -0,0 +1 @@ +{dialyzer_options, [{warnings, [underspecs]}]}. diff --git a/lib/dialyzer/test/underspecs_SUITE_data/results/remote b/lib/dialyzer/test/underspecs_SUITE_data/results/remote new file mode 100644 index 0000000000..1e0cda3bde --- /dev/null +++ b/lib/dialyzer/test/underspecs_SUITE_data/results/remote @@ -0,0 +1,9 @@ + +remotes1.erl:17: The specification for remotes1:foo5/1 states that the function might also return 'ko' but the inferred return is 'ok' +remotes1.erl:20: Type specification remotes1:foo6('ok' | 'ko') -> 'ok' is a supertype of the success typing: remotes1:foo6('ok') -> 'ok' +remotes1.erl:25: The specification for remotes1:foo7/1 states that the function might also return 'ko' but the inferred return is 'ok' +remotes1.erl:28: Type specification remotes1:foo8(local_type_42()) -> 'ok' is a supertype of the success typing: remotes1:foo8('ok') -> 'ok' +remotes1.erl:33: The specification for remotes1:foo9/1 states that the function might also return 'ko' but the inferred return is 'ok' +remotes1.erl:36: Type specification remotes1:foo10(local_and_known_remote_type_42()) -> 'ok' is a supertype of the success typing: remotes1:foo10('ok') -> 'ok' +remotes1.erl:49: Type specification remotes1:foo13('ok') -> local_and_unknown_remote_type_42() is a supertype of the success typing: remotes1:foo13('ok') -> 'ok' +remotes1.erl:52: Type specification remotes1:foo14(local_and_unknown_remote_type_42()) -> 'ok' is a supertype of the success typing: remotes1:foo14('ok') -> 'ok' diff --git a/lib/dialyzer/test/underspecs_SUITE_data/src/remote/remotes1.erl b/lib/dialyzer/test/underspecs_SUITE_data/src/remote/remotes1.erl new file mode 100644 index 0000000000..b722495095 --- /dev/null +++ b/lib/dialyzer/test/underspecs_SUITE_data/src/remote/remotes1.erl @@ -0,0 +1,61 @@ +-module(remotes1). + +-compile(export_all). + +-spec foo1(some_unknown_remote:type42()) -> ok. +foo1(ok) -> ok. + +-spec foo2(ok) -> some_unknown_remote:type42(). +foo2(ok) -> ok. + +-spec foo3(some_known_remote:type42()) -> ok. +foo3(ok) -> ok. + +-spec foo4(ok) -> some_known_remote:type42(). +foo4(ok) -> ok. + +-spec foo5(ok|ko) -> ok|ko. +foo5(ok) -> ok. + +-spec foo6(ok|ko) -> ok. +foo6(ok) -> ok. + +-type local_type_42() :: ok | ko. + +-spec foo7(ok) -> local_type_42(). +foo7(ok) -> ok. + +-spec foo8(local_type_42()) -> ok. +foo8(ok) -> ok. + +-type local_and_known_remote_type_42() :: some_known_remote:type42() | ok | ko. + +-spec foo9(ok) -> local_and_known_remote_type_42(). +foo9(ok) -> ok. + +-spec foo10(local_and_known_remote_type_42()) -> ok. +foo10(ok) -> ok. + +-type local_and_ok_known_remote_type_42() :: some_known_remote:type42() | ok. + +-spec foo11(ok) -> local_and_ok_known_remote_type_42(). +foo11(ok) -> ok. + +-spec foo12(local_and_ok_known_remote_type_42()) -> ok. +foo12(ok) -> ok. + +-type local_and_unknown_remote_type_42() :: some_unknown_remote:type42() | ok | ko. + +-spec foo13(ok) -> local_and_unknown_remote_type_42(). +foo13(ok) -> ok. + +-spec foo14(local_and_unknown_remote_type_42()) -> ok. +foo14(ok) -> ok. + +-type local_and_ok_unknown_remote_type_42() :: some_unknown_remote:type42() | ok. + +-spec foo15(ok) -> local_and_ok_unknown_remote_type_42(). +foo15(ok) -> ok. + +-spec foo16(local_and_ok_unknown_remote_type_42()) -> ok. +foo16(ok) -> ok. diff --git a/lib/dialyzer/test/underspecs_SUITE_data/src/remote/some_known_remote.erl b/lib/dialyzer/test/underspecs_SUITE_data/src/remote/some_known_remote.erl new file mode 100644 index 0000000000..437f1e7826 --- /dev/null +++ b/lib/dialyzer/test/underspecs_SUITE_data/src/remote/some_known_remote.erl @@ -0,0 +1,5 @@ +-module(some_known_remote). + +-export_type([type42/0]). + +-type type42() :: ok | ko. -- cgit v1.2.3 From 18427c8e60494d34ea1d7b85fe4dd76b65736cc7 Mon Sep 17 00:00:00 2001 From: Stavros Aronis Date: Thu, 24 Nov 2011 23:29:29 +0100 Subject: Fix crash in Typer --- lib/typer/src/typer.erl | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/lib/typer/src/typer.erl b/lib/typer/src/typer.erl index f2a70f49b7..fd39b55dd4 100644 --- a/lib/typer/src/typer.erl +++ b/lib/typer/src/typer.erl @@ -119,9 +119,9 @@ extract(#analysis{macros = Macros, {ok, RecDict} -> Mod = list_to_atom(filename:basename(File, ".erl")), case dialyzer_utils:get_spec_info(Mod, AbstractCode, RecDict) of - {ok, SpecDict} -> + {ok, SpecDict, CbDict} -> CS1 = dialyzer_codeserver:store_temp_records(Mod, RecDict, CS), - dialyzer_codeserver:store_temp_contracts(Mod, SpecDict, CS1); + dialyzer_codeserver:store_temp_contracts(Mod, SpecDict, CbDict, CS1); {error, Reason} -> compile_error([Reason]) end; {error, Reason} -> compile_error([Reason]) @@ -873,16 +873,16 @@ collect_one_file_info(File, Analysis) -> Mod = cerl:concrete(cerl:module_name(Core)), case dialyzer_utils:get_spec_info(Mod, AbstractCode, Records) of {error, Reason} -> compile_error([Reason]); - {ok, SpecInfo} -> + {ok, SpecInfo, CbInfo} -> ExpTypes = get_exported_types_from_core(Core), - analyze_core_tree(Core, Records, SpecInfo, ExpTypes, - Analysis, File) + analyze_core_tree(Core, Records, SpecInfo, CbInfo, + ExpTypes, Analysis, File) end end end end. -analyze_core_tree(Core, Records, SpecInfo, ExpTypes, Analysis, File) -> +analyze_core_tree(Core, Records, SpecInfo, CbInfo, ExpTypes, Analysis, File) -> Module = cerl:concrete(cerl:module_name(Core)), TmpTree = cerl:from_records(Core), CS1 = Analysis#analysis.codeserver, @@ -894,7 +894,8 @@ analyze_core_tree(Core, Records, SpecInfo, ExpTypes, Analysis, File) -> CS5 = case Analysis#analysis.no_spec of true -> CS4; - false -> dialyzer_codeserver:store_temp_contracts(Module, SpecInfo, CS4) + false -> + dialyzer_codeserver:store_temp_contracts(Module, SpecInfo, CbInfo, CS4) end, OldExpTypes = dialyzer_codeserver:get_temp_exported_types(CS5), MergedExpTypes = sets:union(ExpTypes, OldExpTypes), -- cgit v1.2.3 From ac61d229a27b0b07f08e25c4d18d214df89919e0 Mon Sep 17 00:00:00 2001 From: Stavros Aronis Date: Thu, 24 Nov 2011 23:30:01 +0100 Subject: Fix Dialyzer's warning for its own code --- lib/dialyzer/src/dialyzer_cl.erl | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/lib/dialyzer/src/dialyzer_cl.erl b/lib/dialyzer/src/dialyzer_cl.erl index e638e2fff2..41970f0efe 100644 --- a/lib/dialyzer/src/dialyzer_cl.erl +++ b/lib/dialyzer/src/dialyzer_cl.erl @@ -525,10 +525,7 @@ native_compile(Mods) -> end. hc(Mod) -> - case code:ensure_loaded(Mod) of - {module, Mod} -> ok; - {error, sticky_directory} -> ok - end, + {module, Mod} = code:ensure_loaded(Mod), case code:is_module_native(Mod) of true -> ok; false -> -- cgit v1.2.3 From 94ab93b5d1e3b952fd55a8f3bf03146ee43de8ab Mon Sep 17 00:00:00 2001 From: Stavros Aronis Date: Fri, 25 Nov 2011 01:11:06 +0100 Subject: Fix Dialyzer's warnings in HiPE --- lib/hipe/icode/hipe_icode_coordinator.erl | 9 +++++++-- lib/hipe/icode/hipe_icode_mulret.erl | 4 ++-- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/lib/hipe/icode/hipe_icode_coordinator.erl b/lib/hipe/icode/hipe_icode_coordinator.erl index a71e143192..d2defa0c90 100644 --- a/lib/hipe/icode/hipe_icode_coordinator.erl +++ b/lib/hipe/icode/hipe_icode_coordinator.erl @@ -49,6 +49,12 @@ coordinate(CG, Escaping, NonEscaping, Mod) -> fun (PM) -> last_action(PM, ServerPid, Mod, All) end, coordinate({Clean,All}, CG, gb_trees:empty(), Restart, LastAction, ServerPid). +-type mfalists() :: {[mfa()], [mfa()]}. + +-spec coordinate(mfalists(), hipe_digraph:hdg(), gb_tree(), + fun((mfalists(), gb_tree()) -> mfalists()), + fun((gb_tree()) -> 'ok'), pid()) -> no_return(). + coordinate(MFALists, CG, PM, Restart, LastAction, ServerPid) -> case MFALists of {[], []} -> @@ -106,8 +112,7 @@ last_action(PM, ServerPid, Mod, All) -> receive {done_rewrite, MFA} -> ok end - end, All), - ok. + end, All). restart_funs({Queue, Busy} = QB, PM, All, ServerPid) -> case ?MAX_CONCURRENT - length(Busy) of diff --git a/lib/hipe/icode/hipe_icode_mulret.erl b/lib/hipe/icode/hipe_icode_mulret.erl index a6529c8519..0579867e2f 100644 --- a/lib/hipe/icode/hipe_icode_mulret.erl +++ b/lib/hipe/icode/hipe_icode_mulret.erl @@ -595,9 +595,9 @@ optimizeDefine([I|Code], Dsts, DstLst, Res) -> [Ds] = Dsts, case isCallPrimop(I, mktuple) andalso DstLst =:= [] of true -> - case (hipe_icode:call_dstlist(I) =:= Dsts) of + case hipe_icode:call_dstlist(I) =:= Dsts of true -> - case (hipe_icode:call_args(I) > 1) of + case length(hipe_icode:call_args(I)) > 1 of true -> optimizeDefine(Code, Dsts, hipe_icode:call_args(I), Res); false -> -- cgit v1.2.3 From 42c3c039dc3efea116ee25e7b13a3017ebd13b29 Mon Sep 17 00:00:00 2001 From: Stavros Aronis Date: Fri, 25 Nov 2011 17:06:56 +0100 Subject: Add file/line info in a particular Dialyzer crash --- lib/dialyzer/src/dialyzer_cl.erl | 2 +- lib/dialyzer/src/dialyzer_contracts.erl | 27 ++++++++++++++++++--------- 2 files changed, 19 insertions(+), 10 deletions(-) diff --git a/lib/dialyzer/src/dialyzer_cl.erl b/lib/dialyzer/src/dialyzer_cl.erl index 41970f0efe..732bd4ac84 100644 --- a/lib/dialyzer/src/dialyzer_cl.erl +++ b/lib/dialyzer/src/dialyzer_cl.erl @@ -608,7 +608,7 @@ cl_loop(State, LogCache) -> -spec failed_anal_msg(string(), [_]) -> nonempty_string(). failed_anal_msg(Reason, LogCache) -> - Msg = "Analysis failed with error: " ++ Reason ++ "\n", + Msg = "Analysis failed with error:\n" ++ Reason ++ "\n", case LogCache =:= [] of true -> Msg; false -> diff --git a/lib/dialyzer/src/dialyzer_contracts.erl b/lib/dialyzer/src/dialyzer_contracts.erl index 6f83e29a57..8b43740e34 100644 --- a/lib/dialyzer/src/dialyzer_contracts.erl +++ b/lib/dialyzer/src/dialyzer_contracts.erl @@ -352,28 +352,37 @@ insert_constraints([], Dict) -> Dict. store_tmp_contract(MFA, FileLine, TypeSpec, SpecDict, RecordsDict) -> %% io:format("contract from form: ~p\n", [TypeSpec]), - TmpContract = contract_from_form(TypeSpec, RecordsDict), + TmpContract = contract_from_form(TypeSpec, RecordsDict, FileLine), %% io:format("contract: ~p\n", [Contract]), dict:store(MFA, {FileLine, TmpContract}, SpecDict). -contract_from_form(Forms, RecDict) -> - {CFuns, Forms1} = contract_from_form(Forms, RecDict, [], []), +contract_from_form(Forms, RecDict, FileLine) -> + {CFuns, Forms1} = contract_from_form(Forms, RecDict, FileLine, [], []), #tmp_contract{contract_funs = CFuns, forms = Forms1}. contract_from_form([{type, _, 'fun', [_, _]} = Form | Left], RecDict, - TypeAcc, FormAcc) -> + FileLine, TypeAcc, FormAcc) -> TypeFun = fun(ExpTypes, AllRecords) -> - Type = erl_types:t_from_form(Form, RecDict), + Type = + try + erl_types:t_from_form(Form, RecDict) + catch + throw:{error, Msg} -> + {File, Line} = FileLine, + NewMsg = io_lib:format("~s:~p: ~s", [filename:basename(File), + Line, Msg]), + throw({error, NewMsg}) + end, NewType = erl_types:t_solve_remote(Type, ExpTypes, AllRecords), {NewType, []} end, NewTypeAcc = [TypeFun | TypeAcc], NewFormAcc = [{Form, []} | FormAcc], - contract_from_form(Left, RecDict, NewTypeAcc, NewFormAcc); + contract_from_form(Left, RecDict, FileLine, NewTypeAcc, NewFormAcc); contract_from_form([{type, _L1, bounded_fun, [{type, _L2, 'fun', [_, _]} = Form, Constr]}| Left], - RecDict, TypeAcc, FormAcc) -> + RecDict, FileLine, TypeAcc, FormAcc) -> TypeFun = fun(ExpTypes, AllRecords) -> Constr1 = [constraint_from_form(C, RecDict, ExpTypes, AllRecords) @@ -385,8 +394,8 @@ contract_from_form([{type, _L1, bounded_fun, end, NewTypeAcc = [TypeFun | TypeAcc], NewFormAcc = [{Form, Constr} | FormAcc], - contract_from_form(Left, RecDict, NewTypeAcc, NewFormAcc); -contract_from_form([], _RecDict, TypeAcc, FormAcc) -> + contract_from_form(Left, RecDict, FileLine, NewTypeAcc, NewFormAcc); +contract_from_form([], _RecDict, _FileLine, TypeAcc, FormAcc) -> {lists:reverse(TypeAcc), lists:reverse(FormAcc)}. constraint_from_form({type, _, constraint, [{atom, _, is_subtype}, -- cgit v1.2.3 From 804f81747df38cbcb997a6e7aebe8d3868a31e3e Mon Sep 17 00:00:00 2001 From: Stavros Aronis Date: Mon, 28 Nov 2011 10:46:26 +0100 Subject: Update inets test results --- lib/dialyzer/test/r9c_SUITE_data/results/inets | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/lib/dialyzer/test/r9c_SUITE_data/results/inets b/lib/dialyzer/test/r9c_SUITE_data/results/inets index 6b16dba2ff..24cb39e52b 100644 --- a/lib/dialyzer/test/r9c_SUITE_data/results/inets +++ b/lib/dialyzer/test/r9c_SUITE_data/results/inets @@ -12,7 +12,6 @@ httpc_manager.erl:145: The pattern {ErrorReply, State2} can never match the type httpc_manager.erl:160: The pattern {ErrorReply, State2} can never match the type {{'ok',number()},number(),#state{reqid::number()}} httpc_manager.erl:478: The pattern {'error', Reason} can never match the type 'ok' | {number(),#session{clientclose::boolean(),pipeline::[],quelength::1}} httpc_manager.erl:490: The pattern {'error', Reason} can never match the type 'ok' | {number(),#session{clientclose::boolean(),pipeline::[],quelength::1}} -httpd.erl:583: The pattern <{'error', Reason}, _Fd, SoFar> can never match the type <[any()],pid(),[[any(),...]]> httpd_acceptor.erl:105: The pattern {'error', Reason} can never match the type {'ok',pid()} httpd_acceptor.erl:110: Function handle_connection_err/4 will never be called httpd_acceptor.erl:168: Function report_error/2 will never be called @@ -24,8 +23,7 @@ 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: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_request_handler.erl:649: Guard test [{_,_}] =:= Trailers::nonempty_string() can never succeed 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',_,_} @@ -40,10 +38,10 @@ mod_dir.erl:72: The pattern {'error', Reason} can never match the type {'ok',[[[ mod_get.erl:135: The pattern <{'enfile', _}, _Info, Path> can never match the type mod_head.erl:80: The pattern <{'enfile', _}, _Info, Path> can never match the type mod_htaccess.erl:460: The pattern {'error', BadData} can never match the type {'ok',_} -mod_include.erl:193: The pattern {_, Name, {[], []}} can never match the type {[any()],[any()],string()} -mod_include.erl:195: The pattern {_, Name, {PathInfo, []}} can never match the type {[any()],[any()],string()} -mod_include.erl:197: The pattern {_, Name, {PathInfo, QueryString}} can never match the type {[any()],[any()],string()} -mod_include.erl:201: The variable Gurka can never match since previous clauses completely covered the type {[any()],[any()],string()} +mod_include.erl:193: The pattern {_, Name, {[], []}} can never match the type {[any()],[any()],maybe_improper_list()} +mod_include.erl:195: The pattern {_, Name, {PathInfo, []}} can never match the type {[any()],[any()],maybe_improper_list()} +mod_include.erl:197: The pattern {_, Name, {PathInfo, QueryString}} can never match the type {[any()],[any()],maybe_improper_list()} +mod_include.erl:201: The variable Gurka can never match since previous clauses completely covered the type {[any()],[any()],maybe_improper_list()} mod_include.erl:692: The pattern <{'read', Reason}, Info, Path> can never match the type <{'open',atom()},#mod{},atom() | binary() | [atom() | [any()] | char()]> mod_include.erl:706: The pattern <{'enfile', _}, _Info, Path> can never match the type mod_include.erl:716: Function read_error/3 will never be called -- cgit v1.2.3