diff options
Diffstat (limited to 'lib/dialyzer')
22 files changed, 348 insertions, 109 deletions
diff --git a/lib/dialyzer/doc/src/dialyzer.xml b/lib/dialyzer/doc/src/dialyzer.xml index 4e26a9e95e..e482b1e6f8 100644 --- a/lib/dialyzer/doc/src/dialyzer.xml +++ b/lib/dialyzer/doc/src/dialyzer.xml @@ -238,7 +238,10 @@ <item>Include warnings for functions that only return by means of an exception.</item> <tag><c><![CDATA[-Wrace_conditions]]></c>***</tag> - <item>Include warnings for possible race conditions.</item> + <item>Include warnings for possible race conditions. Note that the + analysis that finds data races performs intra-procedural data flow analysis + and can sometimes explode in time. Enable it at your own risk. + </item> <tag><c><![CDATA[-Wunderspecs]]></c>***</tag> <item>Warn about underspecified functions (the -spec is strictly more allowing than the success typing).</item> diff --git a/lib/dialyzer/doc/src/notes.xml b/lib/dialyzer/doc/src/notes.xml index 99ec0caddc..d35639aa32 100644 --- a/lib/dialyzer/doc/src/notes.xml +++ b/lib/dialyzer/doc/src/notes.xml @@ -31,6 +31,74 @@ <p>This document describes the changes made to the Dialyzer application.</p> +<section><title>Dialyzer 2.7.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> A bug concerning <c>is_record/2,3</c> has been fixed, + as well as some cases where Dialyzer could crash due to + reaching system limits. </p> + <p> + Own Id: OTP-12018</p> + </item> + <item> + <p> When given the <c>-Wunderspecs</c> flag Dialyzer + sometimes output bogus warnings for parametrized types. + This bug has been fixed. </p> + <p> + Own Id: OTP-12111</p> + </item> + <item> + <p>Dialyzer now fetch the compile options from beam + files, and use them when creating core from the abstract + code. Previously the options were ignored. </p> + <p> + Own Id: OTP-12150</p> + </item> + </list> + </section> + +</section> + +<section><title>Dialyzer 2.7.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> Fix a bug concerning opaque types. Thanks to Shayan + Pooya for pointing out the bug.</p> + <p> + Own Id: OTP-11869</p> + </item> + <item> + <p> A bug where Dialyzer failed to handle typed records + with fields containing remote types has been fixed. + Thanks to Erik Søe Sørensen for reporting the bug. </p> + <p> + Own Id: OTP-11918</p> + </item> + <item> + <p> Make sure that only literal records are checked + against the types of record definitions. Until now the + elements of tuples have been checked against record field + types if the tag och size of the tuple matches the record + definition, often with surprising results. </p> + <p> + Own Id: OTP-11935 Aux Id: seq12590 </p> + </item> + <item> + <p> + A Dialyzer crash involving analysis of Map types has now + been fixed.</p> + <p> + Own Id: OTP-11947</p> + </item> + </list> + </section> + +</section> + <section><title>Dialyzer 2.7</title> <section><title>Fixed Bugs and Malfunctions</title> diff --git a/lib/dialyzer/src/dialyzer_analysis_callgraph.erl b/lib/dialyzer/src/dialyzer_analysis_callgraph.erl index 6a33a2acb3..af1c2b7e3a 100644 --- a/lib/dialyzer/src/dialyzer_analysis_callgraph.erl +++ b/lib/dialyzer/src/dialyzer_analysis_callgraph.erl @@ -373,7 +373,16 @@ compile_byte(File, Callgraph, CServer, UseContracts) -> {error, " Could not get abstract code for: " ++ File ++ "\n" ++ " Recompile with +debug_info or analyze starting from source code"}; {ok, AbstrCode} -> - compile_common(File, AbstrCode, [], Callgraph, CServer, UseContracts) + compile_byte(File, AbstrCode, Callgraph, CServer, UseContracts) + end. + +compile_byte(File, AbstrCode, Callgraph, CServer, UseContracts) -> + case dialyzer_utils:get_compile_options_from_beam(File) of + error -> + {error, " Could not get compile options for: " ++ File ++ "\n" ++ + " Recompile or analyze starting from source code"}; + {ok, CompOpts} -> + compile_common(File, AbstrCode, CompOpts, Callgraph, CServer, UseContracts) end. compile_common(File, AbstrCode, CompOpts, Callgraph, CServer, UseContracts) -> diff --git a/lib/dialyzer/src/dialyzer_behaviours.erl b/lib/dialyzer/src/dialyzer_behaviours.erl index 1d458b49fc..bbedd3201e 100644 --- a/lib/dialyzer/src/dialyzer_behaviours.erl +++ b/lib/dialyzer/src/dialyzer_behaviours.erl @@ -102,14 +102,18 @@ check_all_callbacks(Module, Behaviour, [Cb|Rest], #state{plt = Plt, codeserver = Codeserver, records = Records} = State, Acc) -> {{Behaviour, Function, Arity}, - {{_BehFile, _BehLine}, Callback}} = Cb, + {{_BehFile, _BehLine}, Callback, Xtra}} = Cb, CbMFA = {Module, Function, Arity}, CbReturnType = dialyzer_contracts:get_contract_return(Callback), CbArgTypes = dialyzer_contracts:get_contract_args(Callback), Acc0 = Acc, Acc1 = case dialyzer_plt:lookup(Plt, CbMFA) of - 'none' -> [{callback_missing, [Behaviour, Function, Arity]}|Acc0]; + 'none' -> + case lists:member(optional_callback, Xtra) of + true -> Acc0; + false -> [{callback_missing, [Behaviour, Function, Arity]}|Acc0] + end; {'value', RetArgTypes} -> Acc00 = Acc0, {ReturnType, ArgTypes} = RetArgTypes, @@ -137,7 +141,7 @@ check_all_callbacks(Module, Behaviour, [Cb|Rest], Acc2 = case dialyzer_codeserver:lookup_mfa_contract(CbMFA, Codeserver) of 'error' -> Acc1; - {ok, {{File, Line}, Contract}} -> + {ok, {{File, Line}, Contract, _Xtra}} -> Acc10 = Acc1, SpecReturnType0 = dialyzer_contracts:get_contract_return(Contract), SpecArgTypes0 = dialyzer_contracts:get_contract_args(Contract), diff --git a/lib/dialyzer/src/dialyzer_codeserver.erl b/lib/dialyzer/src/dialyzer_codeserver.erl index aab3d6add6..593e71f30b 100644 --- a/lib/dialyzer/src/dialyzer_codeserver.erl +++ b/lib/dialyzer/src/dialyzer_codeserver.erl @@ -278,10 +278,10 @@ lookup_mod_contracts(Mod, #codeserver{contracts = ContDict}) case ets_dict_find(Mod, ContDict) of error -> dict:new(); {ok, Keys} -> - dict:from_list([get_contract_pair(Key, ContDict)|| Key <- Keys]) + dict:from_list([get_file_contract(Key, ContDict)|| Key <- Keys]) end. -get_contract_pair(Key, ContDict) -> +get_file_contract(Key, ContDict) -> {Key, ets:lookup_element(ContDict, Key, 2)}. -spec lookup_mfa_contract(mfa(), codeserver()) -> diff --git a/lib/dialyzer/src/dialyzer_contracts.erl b/lib/dialyzer/src/dialyzer_contracts.erl index 1d2dfc7b2d..ee147ca102 100644 --- a/lib/dialyzer/src/dialyzer_contracts.erl +++ b/lib/dialyzer/src/dialyzer_contracts.erl @@ -20,8 +20,6 @@ -module(dialyzer_contracts). --compile(export_all). - -export([check_contract/2, check_contracts/4, contracts_without_fun/3, @@ -45,7 +43,7 @@ %% Types used in other parts of the system below %%----------------------------------------------------------------------- --type file_contract() :: {file_line(), #contract{}}. +-type file_contract() :: {file_line(), #contract{}, Extra :: [_]}. -type plt_contracts() :: [{mfa(), #contract{}}]. % actually, an orddict() @@ -148,10 +146,10 @@ process_contract_remote_types(CodeServer) -> ExpTypes = dialyzer_codeserver:get_exported_types(CodeServer), RecordDict = dialyzer_codeserver:get_records(CodeServer), ContractFun = - fun({_M, _F, _A}, {File, #tmp_contract{contract_funs = CFuns, forms = Forms}}) -> + fun({_M, _F, _A}, {File, #tmp_contract{contract_funs = CFuns, forms = Forms}, Xtra}) -> NewCs = [CFun(ExpTypes, RecordDict) || CFun <- CFuns], Args = general_domain(NewCs), - {File, #contract{contracts = NewCs, args = Args, forms = Forms}} + {File, #contract{contracts = NewCs, args = Args, forms = Forms}, Xtra} end, ModuleFun = fun(_ModuleName, ContractDict) -> @@ -177,7 +175,7 @@ check_contracts(Contracts, Callgraph, FunTypes, FindOpaques) -> case dialyzer_callgraph:lookup_name(Label, Callgraph) of {ok, {M,F,A} = MFA} -> case orddict:find(MFA, Contracts) of - {ok, {_FileLine, Contract}} -> + {ok, {_FileLine, Contract, _Xtra}} -> Opaques = FindOpaques(M), case check_contract(Contract, Type, Opaques) of ok -> @@ -364,7 +362,7 @@ contracts_without_fun(Contracts, AllFuns0, Callgraph) -> [warn_spec_missing_fun(MFA, Contracts) || MFA <- ErrorContractMFAs]. warn_spec_missing_fun({M, F, A} = MFA, Contracts) -> - {FileLine, _Contract} = dict:fetch(MFA, Contracts), + {FileLine, _Contract, _Xtra} = dict:fetch(MFA, Contracts), {?WARN_CONTRACT_SYNTAX, FileLine, {spec_missing_fun, [M, F, A]}}. %% This treats the "when" constraints. It will be extended, we hope. @@ -388,14 +386,16 @@ insert_constraints([], Dict) -> Dict. -type types() :: erl_types:type_table(). --spec store_tmp_contract(mfa(), file_line(), [_], contracts(), types()) -> +-type spec_data() :: {TypeSpec :: [_], Xtra:: [_]}. + +-spec store_tmp_contract(mfa(), file_line(), spec_data(), contracts(), types()) -> contracts(). -store_tmp_contract(MFA, FileLine, TypeSpec, SpecDict, RecordsDict) -> +store_tmp_contract(MFA, FileLine, {TypeSpec, Xtra}, SpecDict, RecordsDict) -> %% io:format("contract from form: ~p\n", [TypeSpec]), TmpContract = contract_from_form(TypeSpec, RecordsDict, FileLine), %% io:format("contract: ~p\n", [TmpContract]), - dict:store(MFA, {FileLine, TmpContract}, SpecDict). + dict:store(MFA, {FileLine, TmpContract, Xtra}, SpecDict). contract_from_form(Forms, RecDict, FileLine) -> {CFuns, Forms1} = contract_from_form(Forms, RecDict, FileLine, [], []), @@ -599,7 +599,7 @@ get_invalid_contract_warnings_modules([Mod|Mods], CodeServer, Plt, FindOpaques, get_invalid_contract_warnings_modules([], _CodeServer, _Plt, _FindOpaques, Acc) -> Acc. -get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract}}|Left], +get_invalid_contract_warnings_funs([{MFA, {FileLine, Contract, _Xtra}}|Left], Plt, RecDict, FindOpaques, Acc) -> case dialyzer_plt:lookup(Plt, MFA) of none -> @@ -686,7 +686,7 @@ picky_contract_check(CSig0, Sig0, MFA, FileLine, Contract, RecDict, Acc) -> true -> Acc; false -> case extra_contract_warning(MFA, FileLine, Contract, - CSig, Sig, RecDict) of + CSig0, Sig0, RecDict) of no_warning -> Acc; {warning, Warning} -> [Warning|Acc] end @@ -752,7 +752,8 @@ is_remote_types_related(Contract, CSig, Sig, RecDict) -> t_from_forms_without_remote([{FType, []}], RecDict) -> Type0 = erl_types:t_from_form(FType, RecDict), - {ok, erl_types:subst_all_remote(Type0, erl_types:t_none())}; + Type1 = erl_types:subst_all_remote(Type0, erl_types:t_none()), + {ok, erl_types:subst_all_vars_to_any(Type1)}; t_from_forms_without_remote([{_FType, _Constrs}], _RecDict) -> %% 'When' constraints unsupported; diff --git a/lib/dialyzer/src/dialyzer_dataflow.erl b/lib/dialyzer/src/dialyzer_dataflow.erl index 92aab68ad6..46467a1303 100644 --- a/lib/dialyzer/src/dialyzer_dataflow.erl +++ b/lib/dialyzer/src/dialyzer_dataflow.erl @@ -93,6 +93,8 @@ -define(TYPE_LIMIT, 3). +-define(BITS, 128). + -record(state, {callgraph :: dialyzer_callgraph:callgraph(), envs :: env_tab(), fun_tab :: fun_tab(), @@ -1610,10 +1612,18 @@ bind_bin_segs([Seg|Segs], BinType, Acc, Map, State) -> SizeVal = lists:max(List), Flags = cerl:concrete(cerl:bitstr_flags(Seg)), N = SizeVal * UnitVal, - case lists:member(signed, Flags) of - true -> t_from_range(-(1 bsl (N - 1)), 1 bsl (N - 1) - 1); - false -> t_from_range(0, 1 bsl N - 1) - end + case N >= ?BITS of + true -> + case lists:member(signed, Flags) of + true -> t_from_range(neg_inf, pos_inf); + false -> t_from_range(0, pos_inf) + end; + false -> + case lists:member(signed, Flags) of + true -> t_from_range(-(1 bsl (N - 1)), 1 bsl (N - 1) - 1); + false -> t_from_range(0, 1 bsl N - 1) + end + end end end, {Map2, [_]} = bind_pat_vars([Val], [ValConstr], [], Map1, State, false), @@ -2771,8 +2781,7 @@ filter_match_fail([]) -> %%% =========================================================================== state__new(Callgraph, Tree, Plt, Module, Records) -> - Opaques = erl_types:module_builtin_opaques(Module) ++ - erl_types:t_opaque_from_records(Records), + Opaques = erl_types:t_opaque_from_records(Records), TreeMap = build_tree_map(Tree), Funs = dict:fetch_keys(TreeMap), FunTab = init_fun_tab(Funs, dict:new(), TreeMap, Callgraph, Plt), diff --git a/lib/dialyzer/src/dialyzer_plt.erl b/lib/dialyzer/src/dialyzer_plt.erl index 63798f44b1..7c970daf41 100644 --- a/lib/dialyzer/src/dialyzer_plt.erl +++ b/lib/dialyzer/src/dialyzer_plt.erl @@ -158,9 +158,7 @@ lookup_contract(#mini_plt{contracts = ETSContracts}, ets_table_lookup(ETSContracts, MFA). -spec lookup_callbacks(plt(), module()) -> - 'none' | {'value', [{mfa(), {{Filename::string(), - Line::pos_integer()}, - #contract{}}}]}. + 'none' | {'value', [{mfa(), dialyzer_contracts:file_contract()}]}. lookup_callbacks(#mini_plt{callbacks = ETSCallbacks}, Mod) when is_atom(Mod) -> ets_table_lookup(ETSCallbacks, Mod). @@ -618,9 +616,7 @@ table_insert_list(Plt, [{Key, Val}|Left]) -> table_insert_list(Plt, []) -> Plt. -table_insert(Plt, Key, {_Ret, _Arg} = Obj) -> - dict:store(Key, Obj, Plt); -table_insert(Plt, Key, #contract{} = C) -> +table_insert(Plt, Key, {_File, #contract{}, _Xtra} = C) -> dict:store(Key, C, Plt). table_lookup(Plt, Obj) -> diff --git a/lib/dialyzer/src/dialyzer_succ_typings.erl b/lib/dialyzer/src/dialyzer_succ_typings.erl index ef9b00e203..6dc4285194 100644 --- a/lib/dialyzer/src/dialyzer_succ_typings.erl +++ b/lib/dialyzer/src/dialyzer_succ_typings.erl @@ -201,7 +201,7 @@ postprocess_dataflow_warns([{?WARN_CONTRACT_RANGE, {CallF, CallL}, Msg}|Rest], Codeserver, WAcc, Acc) -> {contract_range, [Contract, M, F, A, ArgStrings, CRet]} = Msg, case dialyzer_codeserver:lookup_mfa_contract({M,F,A}, Codeserver) of - {ok, {{ContrF, _ContrL} = FileLine, _C}} -> + {ok, {{ContrF, _ContrL} = FileLine, _C, _X}} -> case CallF =:= ContrF of true -> NewMsg = {contract_range, [Contract, M, F, ArgStrings, CallL, CRet]}, @@ -401,7 +401,7 @@ decorate_succ_typings(Contracts, Callgraph, FunTypes, FindOpaques) -> case dialyzer_callgraph:lookup_name(Label, Callgraph) of {ok, MFA} -> case orddict:find(MFA, Contracts) of - {ok, {_FileLine, Contract}} -> + {ok, {_FileLine, Contract, _Xtra}} -> Args = dialyzer_contracts:get_contract_args(Contract), Ret = dialyzer_contracts:get_contract_return(Contract), C = erl_types:t_fun(Args, Ret), @@ -422,10 +422,7 @@ lookup_and_find_opaques_fun(Codeserver) -> end. find_opaques_fun(Records) -> - fun(Module) -> - erl_types:module_builtin_opaques(Module) ++ - erl_types:t_opaque_from_records(Records) - end. + fun(_Module) -> erl_types:t_opaque_from_records(Records) end. get_fun_types_from_plt(FunList, Callgraph, Plt) -> get_fun_types_from_plt(FunList, Callgraph, Plt, dict:new()). diff --git a/lib/dialyzer/src/dialyzer_utils.erl b/lib/dialyzer/src/dialyzer_utils.erl index e1bcd72c0b..0817ea3a1d 100644 --- a/lib/dialyzer/src/dialyzer_utils.erl +++ b/lib/dialyzer/src/dialyzer_utils.erl @@ -31,6 +31,7 @@ format_sig/1, format_sig/2, get_abstract_code_from_beam/1, + get_compile_options_from_beam/1, get_abstract_code_from_src/1, get_abstract_code_from_src/2, get_core_from_abstract_code/1, @@ -97,7 +98,7 @@ get_abstract_code_from_src(File) -> {'ok', abstract_code()} | {'error', [string()]}. get_abstract_code_from_src(File, Opts) -> - case compile:file(File, [to_pp, binary|Opts]) of + case compile:noenv_file(File, [to_pp, binary|Opts]) of error -> {error, []}; {error, Errors, _} -> {error, format_errors(Errors)}; {ok, _, AbstrCode} -> {ok, AbstrCode} @@ -136,6 +137,26 @@ get_abstract_code_from_beam(File) -> error end. +-spec get_compile_options_from_beam(file:filename()) -> 'error' | {'ok', [compile:option()]}. + +get_compile_options_from_beam(File) -> + case beam_lib:chunks(File, [compile_info]) of + {ok, {_, List}} -> + case lists:keyfind(compile_info, 1, List) of + {compile_info, CompInfo} -> compile_info_to_options(CompInfo); + _ -> error + end; + _ -> + %% No or unsuitable compile info. + error + end. + +compile_info_to_options(CompInfo) -> + case lists:keyfind(options, 1, CompInfo) of + {options, CompOpts} -> {ok, CompOpts}; + _ -> error + end. + -type get_core_from_abs_ret() :: {'ok', cerl:c_module()} | 'error'. -spec get_core_from_abstract_code(abstract_code()) -> get_core_from_abs_ret(). @@ -150,7 +171,9 @@ get_core_from_abstract_code(AbstrCode, Opts) -> %% performed them. In some cases we end up in trouble when %% performing them again. AbstrCode1 = cleanup_parse_transforms(AbstrCode), - try compile:forms(AbstrCode1, Opts ++ src_compiler_opts()) of + %% Remove parse_transforms (and other options) from compile options. + Opts2 = cleanup_compile_options(Opts), + try compile:noenv_forms(AbstrCode1, Opts2 ++ src_compiler_opts()) of {ok, _, Core} -> {ok, Core}; _What -> error catch @@ -322,8 +345,26 @@ merge_records(NewRecords, OldRecords) -> {'ok', spec_dict(), callback_dict()} | {'error', string()}. get_spec_info(ModName, AbstractCode, RecordsDict) -> + OptionalCallbacks0 = get_optional_callbacks(AbstractCode, ModName), + OptionalCallbacks = gb_sets:from_list(OptionalCallbacks0), get_spec_info(AbstractCode, dict:new(), dict:new(), - RecordsDict, ModName, "nofile"). + RecordsDict, ModName, OptionalCallbacks, "nofile"). + +get_optional_callbacks(Abs, ModName) -> + [{ModName, F, A} || {F, A} <- get_optional_callbacks(Abs)]. + +get_optional_callbacks(Abs) -> + L = [O || + {attribute, _, optional_callbacks, O} <- Abs, + is_fa_list(O)], + lists:append(L). + +is_fa_list([{FuncName, Arity}|L]) + when is_atom(FuncName), is_integer(Arity), Arity >= 0 -> + is_fa_list(L); +is_fa_list([]) -> true; +is_fa_list(_) -> false. + %% TypeSpec is a list of conditional contracts for a function. %% Each contract is of the form {[Argument], Range, [Constraint]} where @@ -332,13 +373,14 @@ get_spec_info(ModName, AbstractCode, RecordsDict) -> %% are erl_types:erl_type() get_spec_info([{attribute, Ln, Contract, {Id, TypeSpec}}|Left], - SpecDict, CallbackDict, RecordsDict, ModName, File) + SpecDict, CallbackDict, RecordsDict, ModName, OptCb, File) when ((Contract =:= 'spec') or (Contract =:= 'callback')), is_list(TypeSpec) -> MFA = case Id of {_, _, _} = T -> T; {F, A} -> {ModName, F, A} end, + Xtra = [optional_callback || gb_sets:is_member(MFA, OptCb)], ActiveDict = case Contract of spec -> SpecDict; @@ -346,8 +388,9 @@ get_spec_info([{attribute, Ln, Contract, {Id, TypeSpec}}|Left], end, try dict:find(MFA, ActiveDict) of error -> + SpecData = {TypeSpec, Xtra}, NewActiveDict = - dialyzer_contracts:store_tmp_contract(MFA, {File, Ln}, TypeSpec, + dialyzer_contracts:store_tmp_contract(MFA, {File, Ln}, SpecData, ActiveDict, RecordsDict), {NewSpecDict, NewCallbackDict} = case Contract of @@ -355,8 +398,8 @@ get_spec_info([{attribute, Ln, Contract, {Id, TypeSpec}}|Left], callback -> {SpecDict, NewActiveDict} end, get_spec_info(Left, NewSpecDict, NewCallbackDict, - RecordsDict, ModName,File); - {ok, {{OtherFile, L},_C}} -> + RecordsDict, ModName, OptCb, File); + {ok, {{OtherFile, L}, _D}} -> {Mod, Fun, Arity} = MFA, Msg = flat_format(" Contract/callback for function ~w:~w/~w " "already defined in ~s:~w\n", @@ -368,13 +411,15 @@ get_spec_info([{attribute, Ln, Contract, {Id, TypeSpec}}|Left], [Ln, Error])} end; get_spec_info([{attribute, _, file, {IncludeFile, _}}|Left], - SpecDict, CallbackDict, RecordsDict, ModName, _File) -> + SpecDict, CallbackDict, RecordsDict, ModName, OptCb, _File) -> get_spec_info(Left, SpecDict, CallbackDict, - RecordsDict, ModName, IncludeFile); + RecordsDict, ModName, OptCb, IncludeFile); get_spec_info([_Other|Left], SpecDict, CallbackDict, - RecordsDict, ModName, File) -> - get_spec_info(Left, SpecDict, CallbackDict, RecordsDict, ModName, File); -get_spec_info([], SpecDict, CallbackDict, _RecordsDict, _ModName, _File) -> + RecordsDict, ModName, OptCb, File) -> + get_spec_info(Left, SpecDict, CallbackDict, + RecordsDict, ModName, OptCb, File); +get_spec_info([], SpecDict, CallbackDict, + _RecordsDict, _ModName, _OptCb, _File) -> {ok, SpecDict, CallbackDict}. %% ============================================================================ @@ -419,6 +464,21 @@ cleanup_parse_transforms([Other|Left]) -> cleanup_parse_transforms([]) -> []. +-spec cleanup_compile_options([compile:option()]) -> [compile:option()]. + +cleanup_compile_options(Opts) -> + lists:filter(fun keep_compile_option/1, Opts). + +%% Using abstract, not asm or core. +keep_compile_option(from_asm) -> false; +keep_compile_option(asm) -> false; +keep_compile_option(from_core) -> false; +%% The parse transform will already have been applied, may cause +%% problems if it is re-applied. +keep_compile_option({parse_transform, _}) -> false; +keep_compile_option(warnings_as_errors) -> false; +keep_compile_option(_) -> true. + -spec format_errors([{module(), string()}]) -> [string()]. format_errors([{Mod, Errors}|Left]) -> diff --git a/lib/dialyzer/test/dialyzer_SUITE.erl b/lib/dialyzer/test/dialyzer_SUITE.erl index 1b62291a00..8507525597 100644 --- a/lib/dialyzer/test/dialyzer_SUITE.erl +++ b/lib/dialyzer/test/dialyzer_SUITE.erl @@ -30,12 +30,12 @@ -export([init_per_testcase/2, end_per_testcase/2]). %% Test cases must be exported. --export([app_test/1, appup_test/1]). +-export([app_test/1, appup_test/1, beam_tests/1]). suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> - [app_test, appup_test]. + [app_test, appup_test, beam_tests]. groups() -> []. @@ -75,3 +75,38 @@ app_test(Config) when is_list(Config) -> %% Test that the .appup file does not contain any `basic' errors appup_test(Config) when is_list(Config) -> ok = ?t:appup_test(dialyzer). + +beam_tests(Config) when is_list(Config) -> + Prog = <<" + -module(no_auto_import). + + %% Copied from erl_lint_SUITE.erl, clash6 + + -export([size/1]). + + size([]) -> + 0; + size({N,_}) -> + N; + size([_|T]) -> + 1+size(T). + ">>, + Opts = [no_auto_import], + {ok, BeamFile} = compile(Config, Prog, no_auto_import, Opts), + [] = run_dialyzer([BeamFile]), + ok. + +compile(Config, Prog, Module, CompileOpts) -> + Source = lists:concat([Module, ".erl"]), + PrivDir = ?config(priv_dir,Config), + Filename = filename:join([PrivDir, Source]), + ok = file:write_file(Filename, Prog), + Opts = [{outdir, PrivDir}, debug_info | CompileOpts], + {ok, Module} = compile:file(Filename, Opts), + {ok, filename:join([PrivDir, lists:concat([Module, ".beam"])])}. + +run_dialyzer(Files) -> + dialyzer:run([{analysis_type, plt_build}, + {files, Files}, + {from, byte_code}, + {check_plt, false}]). diff --git a/lib/dialyzer/test/opaque_SUITE_data/src/opaque/opaque_bug5.erl b/lib/dialyzer/test/opaque_SUITE_data/src/opaque/opaque_bug5.erl new file mode 100644 index 0000000000..28d739de8e --- /dev/null +++ b/lib/dialyzer/test/opaque_SUITE_data/src/opaque/opaque_bug5.erl @@ -0,0 +1,10 @@ +%% Second arg of is_record call wasn't checked properly + +-module(opaque_bug5). + +-export([b/0]). + +b() -> + is_record(id({a}), id(a)). + +id(I) -> I. diff --git a/lib/dialyzer/test/small_SUITE_data/results/behaviour_info b/lib/dialyzer/test/small_SUITE_data/results/behaviour_info new file mode 100644 index 0000000000..2da4d26acb --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/results/behaviour_info @@ -0,0 +1,2 @@ + +with_bad_format_status.erl:12: The inferred type for the 1st argument of format_status/2 ('bad_arg') is not a supertype of 'normal' | 'terminate', which is expected type for this argument in the callback of the gen_server behaviour diff --git a/lib/dialyzer/test/small_SUITE_data/results/pretty_bitstring b/lib/dialyzer/test/small_SUITE_data/results/pretty_bitstring new file mode 100644 index 0000000000..0ad6eee766 --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/results/pretty_bitstring @@ -0,0 +1,3 @@ + +pretty_bitstring.erl:7: Function t/0 has no local return +pretty_bitstring.erl:8: The call binary:copy(#{#<1>(8, 1, 'integer', ['unsigned', 'big']), #<2>(8, 1, 'integer', ['unsigned', 'big']), #<3>(3, 1, 'integer', ['unsigned', 'big'])}#,2) breaks the contract (Subject,N) -> binary() when is_subtype(Subject,binary()), is_subtype(N,non_neg_integer()) diff --git a/lib/dialyzer/test/small_SUITE_data/src/behaviour_info/with_bad_format_status.erl b/lib/dialyzer/test/small_SUITE_data/src/behaviour_info/with_bad_format_status.erl new file mode 100644 index 0000000000..24591e08fa --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/src/behaviour_info/with_bad_format_status.erl @@ -0,0 +1,12 @@ +-module(with_bad_format_status). + +-behaviour(gen_server). +-export([handle_call/3,handle_cast/2,handle_info/2, + code_change/3, init/1, terminate/2, format_status/2]). +handle_call(_, _, S) -> {noreply, S}. +handle_cast(_, S) -> {noreply, S}. +handle_info(_, S) -> {noreply, S}. +code_change(_, _, _) -> {error, not_implemented}. +init(_) -> {ok, state}. +terminate(_, _) -> ok. +format_status(bad_arg, _) -> ok. % optional callback diff --git a/lib/dialyzer/test/small_SUITE_data/src/behaviour_info/with_format_status.erl b/lib/dialyzer/test/small_SUITE_data/src/behaviour_info/with_format_status.erl new file mode 100644 index 0000000000..a56ff63d1d --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/src/behaviour_info/with_format_status.erl @@ -0,0 +1,13 @@ +-module(with_format_status). + +-behaviour(gen_server). +-export([handle_call/3,handle_cast/2,handle_info/2, + code_change/3, init/1, terminate/2, format_status/2]). +-export([handle_call/3,handle_cast/2,handle_info/2]). +handle_call(_, _, S) -> {noreply, S}. +handle_cast(_, S) -> {noreply, S}. +handle_info(_, S) -> {noreply, S}. +code_change(_, _, _) -> {error, not_implemented}. +init(_) -> {ok, state}. +terminate(_, _) -> ok. +format_status(normal, _) -> ok. % optional callback diff --git a/lib/dialyzer/test/small_SUITE_data/src/limit.erl b/lib/dialyzer/test/small_SUITE_data/src/limit.erl new file mode 100644 index 0000000000..97ee585b77 --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/src/limit.erl @@ -0,0 +1,20 @@ +%% Misc cases where Dialyzer would fail with system_limit or crash + +-module(limit). + +-export([tu/0, big/1, b2/0]). + +tu() -> + erlang:make_tuple(1 bsl 24, def, [{5,e},{1,a},{3,c}]). + +big(<<Int:1152921504606846976/unit:128,0,_/binary>>) -> {5,Int}. + +b2() -> + Maxbig = maxbig(), + _ = bnot Maxbig, + ok. + +maxbig() -> + %% We assume that the maximum arity is (1 bsl 19) - 1. + Ws = erlang:system_info(wordsize), + (((1 bsl ((16777184 * (Ws div 4))-1)) - 1) bsl 1) + 1. diff --git a/lib/dialyzer/test/small_SUITE_data/src/predef2.erl b/lib/dialyzer/test/small_SUITE_data/src/predef2.erl deleted file mode 100644 index b1d941a49a..0000000000 --- a/lib/dialyzer/test/small_SUITE_data/src/predef2.erl +++ /dev/null @@ -1,56 +0,0 @@ --module(predef2). - --export([array/1, dict/1, digraph/1, digraph2/1, gb_set/1, gb_tree/1, - queue/1, set/1, tid/0, tid2/0]). - --export_type([array/0, digraph/0, gb_set/0]). - --spec array(array()) -> array:array(). - -array(A) -> - array:relax(A). - --spec dict(dict()) -> dict:dict(). - -dict(D) -> - dict:store(1, a, D). - --spec digraph(digraph()) -> [digraph:edge()]. - -digraph(G) -> - digraph:edges(G). - --spec digraph2(digraph:graph()) -> [digraph:edge()]. - -digraph2(G) -> - digraph:edges(G). - --spec gb_set(gb_set()) -> gb_sets:set(). - -gb_set(S) -> - gb_sets:balance(S). - --spec gb_tree(gb_tree()) -> gb_trees:tree(). - -gb_tree(S) -> - gb_trees:balance(S). - --spec queue(queue()) -> queue:queue(). - -queue(Q) -> - queue:reverse(Q). - --spec set(set()) -> sets:set(). - -set(S) -> - sets:union([S]). - --spec tid() -> tid(). - -tid() -> - ets:new(tid, []). - --spec tid2() -> ets:tid(). - -tid2() -> - ets:new(tid, []). diff --git a/lib/dialyzer/test/small_SUITE_data/src/pretty_bitstring.erl b/lib/dialyzer/test/small_SUITE_data/src/pretty_bitstring.erl new file mode 100644 index 0000000000..3dbf5ab7a7 --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/src/pretty_bitstring.erl @@ -0,0 +1,8 @@ +%% Prettyprint bitstrings. + +-module(pretty_bitstring). + +-export([t/0]). + +t() -> + binary:copy(<<1,2,3:3>>,2). diff --git a/lib/dialyzer/test/underspecs_SUITE_data/results/arr b/lib/dialyzer/test/underspecs_SUITE_data/results/arr new file mode 100644 index 0000000000..9497d12eec --- /dev/null +++ b/lib/dialyzer/test/underspecs_SUITE_data/results/arr @@ -0,0 +1,4 @@ + +arr.erl:14: Type specification arr:test2(array:array(T),non_neg_integer(),T) -> array:array(T) is a supertype of the success typing: arr:test2(array:array(_),pos_integer(),_) -> array:array(_) +arr.erl:24: Type specification arr:test4(array:array(T),non_neg_integer(),_) -> array:array(T) is a supertype of the success typing: arr:test4(array:array(_),pos_integer(),_) -> array:array(_) +arr.erl:29: Type specification arr:test5(array:array(T),non_neg_integer(),T) -> array:array(T) is a supertype of the success typing: arr:test5(array:array(_),non_neg_integer(),integer()) -> array:array(_) diff --git a/lib/dialyzer/test/underspecs_SUITE_data/src/arr.erl b/lib/dialyzer/test/underspecs_SUITE_data/src/arr.erl new file mode 100644 index 0000000000..3b265ccec2 --- /dev/null +++ b/lib/dialyzer/test/underspecs_SUITE_data/src/arr.erl @@ -0,0 +1,41 @@ +-module(arr). + +%% http://erlang.org/pipermail/erlang-questions/2014-August/080445.html + +-define(A, array). + +-export([test/3, test2/3, test3/3, test4/3, test5/3, test6/3]). + +-spec test(?A:array(T), non_neg_integer(), T) -> ?A:array(T). + +test(Array, N, Value) -> + ?A:set(N, Value, Array). + +-spec test2(?A:array(T), non_neg_integer(), T) -> ?A:array(T). + +test2(Array, N, Value) when N > 0 -> + ?A:set(N, Value, Array). + +-spec test3(?A:array(T), non_neg_integer(), _) -> ?A:array(T). + +test3(Array, N, Value) -> + ?A:set(N, Value, Array). + +-spec test4(?A:array(T), non_neg_integer(), _) -> ?A:array(T). + +test4(Array, N, Value) when N > 0 -> + ?A:set(N, Value, Array). + +-spec test5(?A:array(T), non_neg_integer(), T) -> ?A:array(T). + +test5(Array, N, Value) when is_integer(Value) -> + ?A:set(N, Value, Array). + +%% One would ideally want a warning also for test6(), but the current +%% analysis of parametrized opaque types is not strong enough to +%% discover this. +-spec test6(?A:array(integer()), non_neg_integer(), integer()) -> + ?A:array(any()). + +test6(Array, N, Value) -> + ?A:set(N, Value, Array). diff --git a/lib/dialyzer/vsn.mk b/lib/dialyzer/vsn.mk index 95d2464e1d..58cc77c2fa 100644 --- a/lib/dialyzer/vsn.mk +++ b/lib/dialyzer/vsn.mk @@ -1 +1 @@ -DIALYZER_VSN = 2.7 +DIALYZER_VSN = 2.7.2 |