diff options
Diffstat (limited to 'lib/dialyzer/src/dialyzer_utils.erl')
| -rw-r--r-- | lib/dialyzer/src/dialyzer_utils.erl | 486 |
1 files changed, 373 insertions, 113 deletions
diff --git a/lib/dialyzer/src/dialyzer_utils.erl b/lib/dialyzer/src/dialyzer_utils.erl index 5297a3a7b4..7fe982a992 100644 --- a/lib/dialyzer/src/dialyzer_utils.erl +++ b/lib/dialyzer/src/dialyzer_utils.erl @@ -2,18 +2,19 @@ %%----------------------------------------------------------------------- %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2006-2014. All Rights Reserved. +%% Copyright Ericsson AB 2006-2015. All Rights Reserved. %% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at %% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. %% %% %CopyrightEnd% %% @@ -40,12 +41,16 @@ get_core_from_src/2, get_record_and_type_info/1, get_spec_info/3, + get_fun_meta_info/3, + is_suppressed_fun/2, + is_suppressed_tag/3, merge_records/2, pp_hook/0, process_record_remote_types/1, sets_filter/2, src_compiler_opts/0, - parallelism/0 + parallelism/0, + family/1 ]). -include("dialyzer.hrl"). @@ -59,16 +64,16 @@ print_types(RecDict) -> print_types1([], _) -> ok; -print_types1([{type, _Name} = Key|T], RecDict) -> - {ok, {_Mod, Form, _Args}} = dict:find(Key, RecDict), - io:format("\n~w: ~w\n", [Key, erl_types:t_from_form(Form, RecDict)]), +print_types1([{type, _Name, _NArgs} = Key|T], RecDict) -> + {ok, {{_Mod, _FileLine, _Form, _Args}, Type}} = dict:find(Key, RecDict), + io:format("\n~w: ~w\n", [Key, Type]), print_types1(T, RecDict); -print_types1([{opaque, _Name} = Key|T], RecDict) -> - {ok, {_Mod, Form, _Args}} = dict:find(Key, RecDict), - io:format("\n~w: ~w\n", [Key, erl_types:t_from_form(Form, RecDict)]), +print_types1([{opaque, _Name, _NArgs} = Key|T], RecDict) -> + {ok, {{_Mod, _FileLine, _Form, _Args}, Type}} = dict:find(Key, RecDict), + io:format("\n~w: ~w\n", [Key, Type]), print_types1(T, RecDict); print_types1([{record, _Name} = Key|T], RecDict) -> - {ok, [{_Arity, _Fields} = AF]} = dict:find(Key, RecDict), + {ok, {_FileLine, [{_Arity, _Fields} = AF]}} = dict:find(Key, RecDict), io:format("~w: ~w\n\n", [Key, AF]), print_types1(T, RecDict). -define(debug(D_), print_types(D_)). @@ -80,7 +85,9 @@ print_types1([{record, _Name} = Key|T], RecDict) -> -type abstract_code() :: [tuple()]. %% XXX: import from somewhere -type comp_options() :: [compile:option()]. --type mod_or_fname() :: atom() | file:filename(). +-type mod_or_fname() :: module() | file:filename(). +-type fa() :: {atom(), arity()}. +-type codeserver() :: dialyzer_codeserver:codeserver(). %% ============================================================================ %% @@ -197,71 +204,74 @@ get_record_and_type_info(AbstractCode) -> {'ok', dict:dict()} | {'error', string()}. get_record_and_type_info(AbstractCode, Module, RecDict) -> - get_record_and_type_info(AbstractCode, Module, [], RecDict). + get_record_and_type_info(AbstractCode, Module, RecDict, "nofile"). -get_record_and_type_info([{attribute, _, record, {Name, Fields0}}|Left], - Module, Records, RecDict) -> +get_record_and_type_info([{attribute, A, record, {Name, Fields0}}|Left], + Module, RecDict, File) -> {ok, Fields} = get_record_fields(Fields0, RecDict), Arity = length(Fields), - NewRecDict = dict:store({record, Name}, [{Arity, Fields}], RecDict), - get_record_and_type_info(Left, Module, [{record, Name}|Records], NewRecDict); -get_record_and_type_info([{attribute, _, type, {{record, Name}, Fields0, []}} - |Left], Module, Records, RecDict) -> + FN = {File, erl_anno:line(A)}, + NewRecDict = dict:store({record, Name}, {FN, [{Arity,Fields}]}, RecDict), + get_record_and_type_info(Left, Module, NewRecDict, File); +get_record_and_type_info([{attribute, A, type, {{record, Name}, Fields0, []}} + |Left], Module, RecDict, File) -> %% This overrides the original record declaration. {ok, Fields} = get_record_fields(Fields0, RecDict), Arity = length(Fields), - NewRecDict = dict:store({record, Name}, [{Arity, Fields}], RecDict), - get_record_and_type_info(Left, Module, Records, NewRecDict); -get_record_and_type_info([{attribute, _, Attr, {Name, TypeForm}}|Left], - Module, Records, RecDict) when Attr =:= 'type'; - Attr =:= 'opaque' -> - try - NewRecDict = add_new_type(Attr, Name, TypeForm, [], Module, RecDict), - get_record_and_type_info(Left, Module, Records, NewRecDict) + FN = {File, erl_anno:line(A)}, + NewRecDict = dict:store({record, Name}, {FN, [{Arity, Fields}]}, RecDict), + get_record_and_type_info(Left, Module, NewRecDict, File); +get_record_and_type_info([{attribute, A, Attr, {Name, TypeForm}}|Left], + Module, RecDict, File) + when Attr =:= 'type'; Attr =:= 'opaque' -> + FN = {File, erl_anno:line(A)}, + try add_new_type(Attr, Name, TypeForm, [], Module, FN, RecDict) of + NewRecDict -> + get_record_and_type_info(Left, Module, NewRecDict, File) catch throw:{error, _} = Error -> Error end; -get_record_and_type_info([{attribute, _, Attr, {Name, TypeForm, Args}}|Left], - Module, Records, RecDict) when Attr =:= 'type'; - Attr =:= 'opaque' -> - try - NewRecDict = add_new_type(Attr, Name, TypeForm, Args, Module, RecDict), - get_record_and_type_info(Left, Module, Records, NewRecDict) +get_record_and_type_info([{attribute, A, Attr, {Name, TypeForm, Args}}|Left], + Module, RecDict, File) + when Attr =:= 'type'; Attr =:= 'opaque' -> + FN = {File, erl_anno:line(A)}, + try add_new_type(Attr, Name, TypeForm, Args, Module, FN, RecDict) of + NewRecDict -> + get_record_and_type_info(Left, Module, NewRecDict, File) catch throw:{error, _} = Error -> Error end; -get_record_and_type_info([_Other|Left], Module, Records, RecDict) -> - get_record_and_type_info(Left, Module, Records, RecDict); -get_record_and_type_info([], _Module, Records, RecDict) -> - case type_record_fields(lists:reverse(Records), RecDict) of - {ok, _NewRecDict} = Ok -> - ?debug(_NewRecDict), - Ok; - {error, Name, Error} -> - {error, flat_format(" Error while parsing #~w{}: ~s\n", [Name, Error])} - end. - -add_new_type(TypeOrOpaque, Name, TypeForm, ArgForms, Module, RecDict) -> +get_record_and_type_info([{attribute, _, file, {IncludeFile, _}}|Left], + Module, RecDict, _File) -> + get_record_and_type_info(Left, Module, RecDict, IncludeFile); +get_record_and_type_info([_Other|Left], Module, RecDict, File) -> + get_record_and_type_info(Left, Module, RecDict, File); +get_record_and_type_info([], _Module, RecDict, _File) -> + {ok, RecDict}. + +add_new_type(TypeOrOpaque, Name, TypeForm, ArgForms, Module, FN, + RecDict) -> Arity = length(ArgForms), case erl_types:type_is_defined(TypeOrOpaque, Name, Arity, RecDict) of true -> Msg = flat_format("Type ~s/~w already defined\n", [Name, Arity]), throw({error, Msg}); false -> - ArgTypes = [erl_types:t_from_form(X) || X <- ArgForms], - case lists:all(fun erl_types:t_is_var/1, ArgTypes) of - true -> - ArgNames = [erl_types:t_var_name(X) || X <- ArgTypes], + try erl_types:t_var_names(ArgForms) of + ArgNames -> dict:store({TypeOrOpaque, Name, Arity}, - {Module, TypeForm, ArgNames}, RecDict); - false -> + {{Module, FN, TypeForm, ArgNames}, + erl_types:t_any()}, RecDict) + catch + _:_ -> throw({error, flat_format("Type declaration for ~w does not " "have variables as parameters", [Name])}) end end. get_record_fields(Fields, RecDict) -> - get_record_fields(Fields, RecDict, []). + Fs = get_record_fields(Fields, RecDict, []), + {ok, [{Name, Form, erl_types:t_any()} || {Name, Form} <- Fs]}. get_record_fields([{typed_record_field, OrdRecField, TypeForm}|Left], RecDict, Acc) -> @@ -270,63 +280,122 @@ get_record_fields([{typed_record_field, OrdRecField, TypeForm}|Left], {record_field, _Line, Name0} -> erl_parse:normalise(Name0); {record_field, _Line, Name0, _Init} -> erl_parse:normalise(Name0) end, - get_record_fields(Left, RecDict, [{Name, TypeForm}|Acc]); + get_record_fields(Left, RecDict, [{Name, TypeForm}|Acc]); get_record_fields([{record_field, _Line, Name}|Left], RecDict, Acc) -> - NewAcc = [{erl_parse:normalise(Name), {var, -1, '_'}}|Acc], + A = erl_anno:set_generated(true, erl_anno:new(1)), + NewAcc = [{erl_parse:normalise(Name), {var, A, '_'}}|Acc], get_record_fields(Left, RecDict, NewAcc); get_record_fields([{record_field, _Line, Name, _Init}|Left], RecDict, Acc) -> - NewAcc = [{erl_parse:normalise(Name), {var, -1, '_'}}|Acc], + A = erl_anno:set_generated(true, erl_anno:new(1)), + NewAcc = [{erl_parse:normalise(Name), {var, A, '_'}}|Acc], get_record_fields(Left, RecDict, NewAcc); get_record_fields([], _RecDict, Acc) -> - {ok, lists:reverse(Acc)}. - -type_record_fields([], RecDict) -> - {ok, RecDict}; -type_record_fields([RecKey|Recs], RecDict) -> - {ok, [{Arity, Fields}]} = dict:find(RecKey, RecDict), - try - TypedFields = - [{FieldName, erl_types:t_from_form(FieldTypeForm, RecDict)} - || {FieldName, FieldTypeForm} <- Fields], - RecDict1 = dict:store(RecKey, [{Arity, TypedFields}], RecDict), - Fun = fun(OldOrdDict) -> - orddict:store(Arity, TypedFields, OldOrdDict) - end, - RecDict2 = dict:update(RecKey, Fun, RecDict1), - type_record_fields(Recs, RecDict2) - catch - throw:{error, Error} -> - {record, Name} = RecKey, - {error, Name, Error} - end. + lists:reverse(Acc). --spec process_record_remote_types(dialyzer_codeserver:codeserver()) -> dialyzer_codeserver:codeserver(). +-spec process_record_remote_types(codeserver()) -> codeserver(). +%% The field types are cached. Used during analysis when handling records. process_record_remote_types(CServer) -> TempRecords = dialyzer_codeserver:get_temp_records(CServer), TempExpTypes = dialyzer_codeserver:get_temp_exported_types(CServer), - RecordFun = - fun(Key, Value) -> - case Key of - {record, _Name} -> - FieldFun = - fun(_Arity, Fields) -> - [{Name, erl_types:t_solve_remote(Field, TempExpTypes, - TempRecords)} - || {Name, Field} <- Fields] - end, - orddict:map(FieldFun, Value); - _Other -> Value - end - end, + TempRecords1 = process_opaque_types0(TempRecords, TempExpTypes), ModuleFun = - fun(_Module, Record) -> + fun(Module, Record) -> + RecordFun = + fun(Key, Value) -> + case Key of + {record, Name} -> + FieldFun = + fun(Arity, Fields) -> + Site = {record, {Module, Name, Arity}}, + [{FieldName, Field, + erl_types:t_from_form(Field, + TempExpTypes, + Site, + TempRecords1)} + || {FieldName, Field, _} <- Fields] + end, + {FileLine, Fields} = Value, + {FileLine, orddict:map(FieldFun, Fields)}; + _Other -> Value + end + end, dict:map(RecordFun, Record) end, - NewRecords = dict:map(ModuleFun, TempRecords), + NewRecords = dict:map(ModuleFun, TempRecords1), + ok = check_record_fields(NewRecords, TempExpTypes), CServer1 = dialyzer_codeserver:finalize_records(NewRecords, CServer), dialyzer_codeserver:finalize_exported_types(TempExpTypes, CServer1). +%% erl_types:t_from_form() substitutes the declaration of opaque types +%% for the expanded type in some cases. To make sure the initial type, +%% any(), is not used, the expansion is done twice. +%% XXX: Recursive opaque types are not handled well. +process_opaque_types0(TempRecords0, TempExpTypes) -> + TempRecords1 = process_opaque_types(TempRecords0, TempExpTypes), + process_opaque_types(TempRecords1, TempExpTypes). + +process_opaque_types(TempRecords, TempExpTypes) -> + ModuleFun = + fun(Module, Record) -> + RecordFun = + fun(Key, Value) -> + case Key of + {opaque, Name, NArgs} -> + {{_Module, _FileLine, Form, _ArgNames}=F, _Type} = Value, + Site = {type, {Module, Name, NArgs}}, + Type = erl_types:t_from_form(Form, TempExpTypes, Site, + TempRecords), + {F, Type}; + _Other -> Value + end + end, + dict:map(RecordFun, Record) + end, + dict:map(ModuleFun, TempRecords). + +check_record_fields(Records, TempExpTypes) -> + CheckFun = + fun({Module, Element}) -> + CheckForm = fun(Form, Site) -> + erl_types:t_check_record_fields(Form, TempExpTypes, + Site, Records) + end, + ElemFun = + fun({Key, Value}) -> + case Key of + {record, Name} -> + FieldFun = + fun({Arity, Fields}) -> + Site = {record, {Module, Name, Arity}}, + _ = [ok = CheckForm(Field, Site) || + {_, Field, _} <- Fields], + ok + end, + {FileLine, Fields} = Value, + Fun = fun() -> lists:foreach(FieldFun, Fields) end, + msg_with_position(Fun, FileLine); + {_OpaqueOrType, Name, NArgs} -> + Site = {type, {Module, Name, NArgs}}, + {{_Module, FileLine, Form, _ArgNames}, _Type} = Value, + Fun = fun() -> ok = CheckForm(Form, Site) end, + msg_with_position(Fun, FileLine) + end + end, + lists:foreach(ElemFun, dict:to_list(Element)) + end, + lists:foreach(CheckFun, dict:to_list(Records)). + +msg_with_position(Fun, FileLine) -> + try Fun() + catch + throw:{error, Msg} -> + {File, Line} = FileLine, + BaseName = filename:basename(File), + NewMsg = io_lib:format("~s:~p: ~s", [BaseName, Line, Msg]), + throw({error, NewMsg}) + end. + -spec merge_records(dict:dict(), dict:dict()) -> dict:dict(). merge_records(NewRecords, OldRecords) -> @@ -341,12 +410,23 @@ merge_records(NewRecords, OldRecords) -> -type spec_dict() :: dict:dict(). -type callback_dict() :: dict:dict(). --spec get_spec_info(atom(), abstract_code(), dict:dict()) -> +-spec get_spec_info(module(), abstract_code(), dict:dict()) -> {'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). %% TypeSpec is a list of conditional contracts for a function. %% Each contract is of the form {[Argument], Range, [Constraint]} where @@ -354,14 +434,16 @@ get_spec_info(ModName, AbstractCode, RecordsDict) -> %% - Constraint is of the form {subtype, T1, T2} where T1 and T2 %% are erl_types:erl_type() -get_spec_info([{attribute, Ln, Contract, {Id, TypeSpec}}|Left], - SpecDict, CallbackDict, RecordsDict, ModName, File) +get_spec_info([{attribute, Anno, Contract, {Id, TypeSpec}}|Left], + SpecDict, CallbackDict, RecordsDict, ModName, OptCb, File) when ((Contract =:= 'spec') or (Contract =:= 'callback')), is_list(TypeSpec) -> + Ln = erl_anno:line(Anno), 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; @@ -369,8 +451,9 @@ 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 @@ -378,8 +461,8 @@ 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", @@ -391,15 +474,137 @@ 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}. +-spec get_fun_meta_info(module(), abstract_code(), [dial_warn_tag()]) -> + dialyzer_codeserver:fun_meta_info(). + +get_fun_meta_info(M, Abs, LegalWarnings) -> + NoWarn = get_nowarn_unused_function(M, Abs), + FuncSupp = get_func_suppressions(M, Abs), + Warnings0 = get_options(Abs, LegalWarnings), + Warnings = ordsets:to_list(Warnings0), + ModuleWarnings = [{M, W} || W <- Warnings], + RawProps = lists:append([NoWarn, FuncSupp, ModuleWarnings]), + process_options(dialyzer_utils:family(RawProps), Warnings0). + +process_options([{M, _}=Mod|Left], Warnings) when is_atom(M) -> + [Mod|process_options(Left, Warnings)]; +process_options([{{_M, _F, _A}=MFA, Opts}|Left], Warnings) -> + WL = case lists:member(nowarn_function, Opts) of + true -> [{nowarn_function, func}]; % takes precedence + false -> + Ws = dialyzer_options:build_warnings(Opts, Warnings), + ModOnly = [{W, mod} || W <- ordsets:subtract(Warnings, Ws)], + FunOnly = [{W, func} || W <- ordsets:subtract(Ws, Warnings)], + ordsets:union(ModOnly, FunOnly) + end, + case WL of + [] -> process_options(Left, Warnings); + _ -> [{MFA, WL}|process_options(Left, Warnings)] + end; +process_options([], _Warnings) -> []. + +-spec get_nowarn_unused_function(module(), abstract_code()) -> + [{mfa(), 'no_unused'}]. + +get_nowarn_unused_function(M, Abs) -> + Opts = get_options_with_tag(compile, Abs), + Warn = erl_lint:bool_option(warn_unused_function, nowarn_unused_function, + true, Opts), + Functions = [{F, A} || {function, _, F, A, _} <- Abs], + AttrFile = collect_attribute(Abs, compile), + TagsFaList = check_fa_list(AttrFile, nowarn_unused_function, Functions), + FAs = case Warn of + false -> Functions; + true -> + [FA || {{nowarn_unused_function,_L,_File}, FA} <- TagsFaList] + end, + [{{M, F, A}, no_unused} || {F, A} <- FAs]. + +-spec get_func_suppressions(module(), abstract_code()) -> + [{mfa(), 'nowarn_function' | dial_warn_tag()}]. + +get_func_suppressions(M, Abs) -> + Functions = [{F, A} || {function, _, F, A, _} <- Abs], + AttrFile = collect_attribute(Abs, dialyzer), + TagsFAs = check_fa_list(AttrFile, '*', Functions), + %% Check the options: + Fun = fun({{nowarn_function, _L, _File}, _FA}) -> ok; + ({OptLFile, _FA}) -> + _ = get_options1([OptLFile], ordsets:new()) + end, + lists:foreach(Fun, TagsFAs), + [{{M, F, A}, W} || {{W, _L, _File}, {F, A}} <- TagsFAs]. + +-spec get_options(abstract_code(), [dial_warn_tag()]) -> + ordsets:ordset(dial_warn_tag()). + +get_options(Abs, LegalWarnings) -> + AttrFile = collect_attribute(Abs, dialyzer), + get_options1(AttrFile, LegalWarnings). + +get_options1([{Args, L, File}|Left], Warnings) -> + Opts = [O || + O <- lists:flatten([Args]), + is_atom(O)], + try dialyzer_options:build_warnings(Opts, Warnings) of + NewWarnings -> + get_options1(Left, NewWarnings) + catch + throw:{dialyzer_options_error, Msg} -> + Msg1 = flat_format(" ~s:~w: ~s", [File, L, Msg]), + throw({error, Msg1}) + end; +get_options1([], Warnings) -> + Warnings. + +-type collected_attribute() :: + {Args :: term(), erl_anno:line(), file:filename()}. + +collect_attribute(Abs, Tag) -> + collect_attribute(Abs, Tag, "nofile"). + +collect_attribute([{attribute, L, Tag, Args}|Left], Tag, File) -> + CollAttr = {Args, L, File}, + [CollAttr | collect_attribute(Left, Tag, File)]; +collect_attribute([{attribute, _, file, {IncludeFile, _}}|Left], Tag, _) -> + collect_attribute(Left, Tag, IncludeFile); +collect_attribute([_Other|Left], Tag, File) -> + collect_attribute(Left, Tag, File); +collect_attribute([], _Tag, _File) -> []. + +-spec is_suppressed_fun(mfa(), codeserver()) -> boolean(). + +is_suppressed_fun(MFA, CodeServer) -> + lookup_fun_property(MFA, nowarn_function, CodeServer). + +-spec is_suppressed_tag(mfa() | module(), dial_warn_tag(), codeserver()) -> + boolean(). + +is_suppressed_tag(MorMFA, Tag, Codeserver) -> + not lookup_fun_property(MorMFA, Tag, Codeserver). + +lookup_fun_property({M, _F, _A}=MFA, Property, CodeServer) -> + MFAPropList = dialyzer_codeserver:lookup_meta_info(MFA, CodeServer), + case proplists:get_value(Property, MFAPropList, no) of + mod -> false; % suppressed in function + func -> true; % requested in function + no -> lookup_fun_property(M, Property, CodeServer) + end; +lookup_fun_property(M, Property, CodeServer) when is_atom(M) -> + MPropList = dialyzer_codeserver:lookup_meta_info(M, CodeServer), + proplists:is_defined(Property, MPropList). + %% ============================================================================ %% %% Exported types @@ -449,7 +654,6 @@ cleanup_compile_options(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. @@ -482,6 +686,57 @@ format_sig(Type, RecDict) -> flat_format(Fmt, Lst) -> lists:flatten(io_lib:format(Fmt, Lst)). +-spec get_options_with_tag(atom(), abstract_code()) -> [term()]. + +get_options_with_tag(Tag, Abs) -> + lists:flatten([O || {attribute, _, Tag0, O} <- Abs, Tag =:= Tag0]). + +%% Check F/A, and collect (unchecked) warning tags with line and file. +-spec check_fa_list([collected_attribute()], atom(), [fa()]) -> + [{{atom(), erl_anno:line(), file:filename()},fa()}]. + +check_fa_list(AttrFile, Tag, Functions) -> + FuncTab = gb_sets:from_list(Functions), + check_fa_list1(AttrFile, Tag, FuncTab). + +check_fa_list1([{Args, L, File}|Left], Tag, Funcs) -> + TermsL = [{{Tag0, L, File}, Term} || + {Tags, Terms0} <- lists:flatten([Args]), + Tag0 <- lists:flatten([Tags]), + Tag =:= '*' orelse Tag =:= Tag0, + Term <- lists:flatten([Terms0])], + case lists:dropwhile(fun({_, T}) -> is_fa(T) end, TermsL) of + [] -> ok; + [{_, Bad}|_] -> + Msg1 = flat_format(" Bad function ~w in line ~s:~w", + [Bad, File, L]), + throw({error, Msg1}) + end, + case lists:dropwhile(fun({_, FA}) -> is_known(FA, Funcs) end, TermsL) of + [] -> ok; + [{_, {F, A}}|_] -> + Msg2 = flat_format(" Unknown function ~w/~w in line ~s:~w", + [F, A, File, L]), + throw({error, Msg2}) + end, + TermsL ++ check_fa_list1(Left, Tag, Funcs); +check_fa_list1([], _Tag, _Funcs) -> []. + +is_known(FA, Funcs) -> + gb_sets:is_element(FA, Funcs). + +-spec is_fa_list(term()) -> boolean(). + +is_fa_list([E|L]) -> is_fa(E) andalso is_fa_list(L); +is_fa_list([]) -> true; +is_fa_list(_) -> false. + +-spec is_fa(term()) -> boolean(). + +is_fa({FuncName, Arity}) + when is_atom(FuncName), is_integer(Arity), Arity >= 0 -> true; +is_fa(_) -> false. + %%------------------------------------------------------------------- %% Author : Per Gustafsson <[email protected]> %% Description : Provides better printing of binaries. @@ -586,3 +841,8 @@ parallelism() -> CPUs = erlang:system_info(logical_processors_available), Schedulers = erlang:system_info(schedulers), min(CPUs, Schedulers). + +-spec family([{K,V}]) -> [{K,[V]}]. + +family(L) -> + sofs:to_external(sofs:rel2fam(sofs:relation(L))). |