diff options
Diffstat (limited to 'lib/stdlib/src/erl_lint.erl')
| -rw-r--r-- | lib/stdlib/src/erl_lint.erl | 144 |
1 files changed, 75 insertions, 69 deletions
diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl index 94ad560549..2cc5c6a5ac 100644 --- a/lib/stdlib/src/erl_lint.erl +++ b/lib/stdlib/src/erl_lint.erl @@ -242,10 +242,10 @@ format_error({untyped_record,T}) -> format_error({unbound_var,V}) -> io_lib:format("variable ~w is unbound", [V]); format_error({unsafe_var,V,{What,Where}}) -> - io_lib:format("variable ~w unsafe in ~w ~s", + io_lib:format("variable ~w unsafe in ~w ~s", [V,What,format_where(Where)]); format_error({exported_var,V,{What,Where}}) -> - io_lib:format("variable ~w exported from ~w ~s", + io_lib:format("variable ~w exported from ~w ~s", [V,What,format_where(Where)]); format_error({shadowed_var,V,In}) -> io_lib:format("variable ~w shadowed in ~w", [V,In]); @@ -296,16 +296,16 @@ format_error({unused_type, {TypeName, Arity}}) -> io_lib:format("type ~w~s is unused", [TypeName, gen_type_paren(Arity)]); format_error({new_builtin_type, {TypeName, Arity}}) -> io_lib:format("type ~w~s is a new builtin type; " - "its (re)definition is allowed only until the next release", + "its (re)definition is allowed only until the next release", [TypeName, gen_type_paren(Arity)]); format_error({builtin_type, {TypeName, Arity}}) -> - io_lib:format("type ~w~s is a builtin type; it cannot be redefined", + io_lib:format("type ~w~s is a builtin type; it cannot be redefined", [TypeName, gen_type_paren(Arity)]); format_error({renamed_type, OldName, NewName}) -> io_lib:format("type ~w() is now called ~w(); " "please use the new name instead", [OldName, NewName]); format_error({redefine_type, {TypeName, Arity}}) -> - io_lib:format("type ~w~s already defined", + io_lib:format("type ~w~s already defined", [TypeName, gen_type_paren(Arity)]); format_error({type_syntax, Constr}) -> io_lib:format("bad ~w type", [Constr]); @@ -354,7 +354,7 @@ pseudolocals() -> %% %% Used by erl_eval.erl to check commands. -%% +%% exprs(Exprs, BindingsList) -> exprs_opt(Exprs, BindingsList, []). @@ -362,7 +362,7 @@ exprs_opt(Exprs, BindingsList, Opts) -> {St0,Vs} = foldl(fun({{record,_SequenceNumber,_Name},Attr0}, {St1,Vs1}) -> Attr = zip_file_and_line(Attr0, "none"), {attribute_state(Attr, St1),Vs1}; - ({V,_}, {St1,Vs1}) -> + ({V,_}, {St1,Vs1}) -> {St1,[{V,{bound,unused,[]}} | Vs1]} end, {start("nofile",Opts),[]}, BindingsList), Vt = orddict:from_list(Vs), @@ -391,7 +391,7 @@ module(Forms) -> Opts = compiler_options(Forms), St = forms(Forms, start("nofile", Opts)), return_status(St). - + module(Forms, FileName) -> Opts = compiler_options(Forms), St = forms(Forms, start(FileName, Opts)), @@ -506,7 +506,7 @@ pack_errors(Es) -> %% Sort on line number. pack_warnings(Ws) -> - [{File,lists:sort([W || {F,W} <- Ws, F =:= File])} || + [{File,lists:sort([W || {F,W} <- Ws, F =:= File])} || File <- lists:usort([F || {F,_} <- Ws])]. %% add_error(ErrorDescriptor, State) -> State' @@ -516,13 +516,13 @@ pack_warnings(Ws) -> add_error(E, St) -> St#lint{errors=[{St#lint.file,E}|St#lint.errors]}. -add_error(FileLine, E, St) -> +add_error(FileLine, E, St) -> {File,Location} = loc(FileLine), add_error({Location,erl_lint,E}, St#lint{file = File}). add_warning(W, St) -> St#lint{warnings=[{St#lint.file,W}|St#lint.warnings]}. -add_warning(FileLine, W, St) -> +add_warning(FileLine, W, St) -> {File,Location} = loc(FileLine), add_warning({Location,erl_lint,W}, St#lint{file = File}). @@ -561,7 +561,7 @@ pre_scan([_ | Fs], St) -> pre_scan(Fs, St); pre_scan([], St) -> St. - + includes_qlc_hrl(Forms, St) -> %% QLC calls erl_lint several times, sometimes with the compile %% attribute removed. The file attribute, however, is left as is. @@ -735,12 +735,12 @@ is_bif_clash(Name, Arity, #lint{clashes=Clashes}) -> not_deprecated(Forms, St0) -> %% There are no line numbers in St0#lint.compile. - MFAsL = [{MFA,L} || + MFAsL = [{MFA,L} || {attribute, L, compile, Args} <- Forms, {nowarn_deprecated_function, MFAs0} <- lists:flatten([Args]), MFA <- lists:flatten([MFAs0])], Nowarn = [MFA || {MFA,_L} <- MFAsL], - Bad = [MFAL || {{M,F,A},_L}=MFAL <- MFAsL, + Bad = [MFAL || {{M,F,A},_L}=MFAL <- MFAsL, otp_internal:obsolete(M, F, A) =:= no], St1 = func_line_warning(bad_nowarn_deprecated_function, Bad, St0), St1#lint{not_deprecated = ordsets:from_list(Nowarn)}. @@ -862,7 +862,7 @@ check_deprecated(Forms, St0) -> Bad = [{E,L} || {attribute, L, deprecated, Depr} <- Forms, D <- lists:flatten([Depr]), E <- depr_cat(D, X, Mod)], - foldl(fun ({E,L}, St1) -> + foldl(fun ({E,L}, St1) -> add_error(L, E, St1) end, St0, Bad). @@ -912,7 +912,7 @@ check_imports(Forms, St0) -> true -> Usage = St0#lint.usage, Unused = ordsets:subtract(St0#lint.imports, Usage#usage.imported), - Imports = [{{FA,list_to_atom(package_to_string(Mod))},L} + Imports = [{{FA,list_to_atom(package_to_string(Mod))},L} || {attribute,L,import,{Mod,Fs}} <- Forms, FA <- lists:usort(Fs)], Bad = [{FM,L} || FM <- Unused, {FM2,L} <- Imports, FM =:= FM2], @@ -932,7 +932,7 @@ check_unused_functions(Forms, St0) -> Opts = St1#lint.compile, case member(export_all, Opts) orelse not is_warn_enabled(unused_function, St1) of - true -> + true -> St1; false -> Nowarn = nowarn_function(nowarn_unused_function, Opts), @@ -1008,7 +1008,7 @@ check_option_functions(Forms, Tag0, Type, St0) -> func_line_error(Type, Bad, St0). nowarn_function(Tag, Opts) -> - ordsets:from_list([FA || {Tag1,FAs} <- Opts, + ordsets:from_list([FA || {Tag1,FAs} <- Opts, Tag1 =:= Tag, FA <- lists:flatten([FAs])]). @@ -1048,10 +1048,10 @@ check_unused_records(Forms, St0) -> %% functions count. Usage = St0#lint.usage, UsedRecords = sets:to_list(Usage#usage.used_records), - URecs = foldl(fun (Used, Recs) -> - dict:erase(Used, Recs) + URecs = foldl(fun (Used, Recs) -> + dict:erase(Used, Recs) end, St0#lint.records, UsedRecords), - Unused = [{Name,FileLine} || + Unused = [{Name,FileLine} || {Name,{FileLine,_Fields}} <- dict:to_list(URecs), element(1, loc(FileLine)) =:= FirstFile], foldl(fun ({N,L}, St) -> @@ -1061,14 +1061,14 @@ check_unused_records(Forms, St0) -> St0 end. -%% For storing the import list we use the orddict module. +%% For storing the import list we use the orddict module. %% We know an empty set is []. %% export(Line, Exports, State) -> State. %% Mark functions as exported, also as called from the export line. export(Line, Es, #lint{exports = Es0, called = Called} = St0) -> - {Es1,C1,St1} = + {Es1,C1,St1} = foldl(fun (NA, {E,C,St2}) -> St = case gb_sets:is_element(NA, E) of true -> @@ -1196,7 +1196,7 @@ call_function(Line, F, A, #lint{usage=Usage0,called=Cd,func=Func}=St) -> is_function_exported(Name, Arity, #lint{exports=Exports,compile=Compile}) -> gb_sets:is_element({Name,Arity}, Exports) orelse member(export_all, Compile). - + %% function(Line, Name, Arity, Clauses, State) -> State. function(Line, instance, _Arity, _Cs, St) when St#lint.global_vt =/= [] -> @@ -1258,7 +1258,7 @@ head([P|Ps], Vt, Old, St0) -> {vtmerge_pat(Pvt, Psvt),vtmerge_pat(Bvt1,Bvt2),St2}; head([], _Vt, _Env, St) -> {[],[],St}. -%% pattern(Pattern, VarTable, Old, BinVarTable, State) -> +%% pattern(Pattern, VarTable, Old, BinVarTable, State) -> %% {UpdVarTable,BinVarTable,State}. %% Check pattern return variables. Old is the set of variables used for %% deciding whether an occurrence is a binding occurrence or a use, and @@ -1276,7 +1276,7 @@ pattern(P, Vt, St) -> pattern({var,_Line,'_'}, _Vt, _Old, _Bvt, St) -> {[],[],St}; %Ignore anonymous variable -pattern({var,Line,V}, _Vt, Old, Bvt, St) -> +pattern({var,Line,V}, _Vt, Old, Bvt, St) -> pat_var(V, Line, Old, Bvt, St); pattern({char,_Line,_C}, _Vt, _Old, _Bvt, St) -> {[],[],St}; pattern({integer,_Line,_I}, _Vt, _Old, _Bvt, St) -> {[],[],St}; @@ -1294,7 +1294,7 @@ pattern({tuple,_Line,Ps}, Vt, Old, Bvt, St) -> %%pattern({struct,_Line,_Tag,Ps}, Vt, Old, Bvt, St) -> %% pattern_list(Ps, Vt, Old, Bvt, St); pattern({record_index,Line,Name,Field}, _Vt, _Old, _Bvt, St) -> - {Vt1,St1} = + {Vt1,St1} = check_record(Line, Name, St, fun (Dfs, St1) -> pattern_field(Field, Name, Dfs, St1) @@ -1309,7 +1309,7 @@ pattern({record_field,Line,_,_}=M, _Vt, _Old, _Bvt, St0) -> end; pattern({record,Line,Name,Pfs}, Vt, Old, Bvt, St) -> case dict:find(Name, St#lint.records) of - {ok,{_Line,Fields}} -> + {ok,{_Line,Fields}} -> St1 = used_record(Name, St), pattern_fields(Pfs, Name, Fields, Vt, Old, Bvt, St1); error -> {[],[],add_error(Line, {undefined_record,Name}, St)} @@ -1369,7 +1369,7 @@ reject_bin_alias({cons,_,H1,T1}, {cons,_,H2,T2}, St0) -> reject_bin_alias(T1, T2, St); reject_bin_alias({tuple,_,Es1}, {tuple,_,Es2}, St) -> reject_bin_alias_list(Es1, Es2, St); -reject_bin_alias({record,_,Name1,Pfs1}, {record,_,Name2,Pfs2}, +reject_bin_alias({record,_,Name1,Pfs1}, {record,_,Name2,Pfs2}, #lint{records=Recs}=St) -> case {dict:find(Name1, Recs),dict:find(Name2, Recs)} of {{ok,{_Line1,Fields1}},{ok,{_Line2,Fields2}}} -> @@ -1451,7 +1451,7 @@ is_pattern_expr_1({op,_Line,Op,A1,A2}) -> erl_internal:arith_op(Op, 2) andalso all(fun is_pattern_expr/1, [A1,A2]); is_pattern_expr_1(_Other) -> false. -%% pattern_bin([Element], VarTable, Old, BinVarTable, State) -> +%% pattern_bin([Element], VarTable, Old, BinVarTable, State) -> %% {UpdVarTable,UpdBinVarTable,State}. %% Check a pattern group. BinVarTable are used binsize variables. @@ -1498,7 +1498,7 @@ good_string_size_type(default, Ts) -> end, Ts); good_string_size_type(_, _) -> false. -%% pat_bit_expr(Pattern, OldVarTable, BinVarTable,State) -> +%% pat_bit_expr(Pattern, OldVarTable, BinVarTable,State) -> %% {UpdVarTable,UpdBinVarTable,State}. %% Check pattern bit expression, only allow really valid patterns! @@ -1513,7 +1513,7 @@ pat_bit_expr(P, _Old, _Bvt, St) -> false -> {[],[],add_error(element(2, P), illegal_pattern, St)} end. -%% pat_bit_size(Size, VarTable, BinVarTable, State) -> +%% pat_bit_size(Size, VarTable, BinVarTable, State) -> %% {Value,UpdVarTable,UpdBinVarTable,State}. %% Check pattern size expression, only allow really valid sizes! @@ -1596,7 +1596,7 @@ bit_size_check(Line, Size, #bittype{type=Type,unit=Unit}, St) -> Sz = Unit * Size, %Total number of bits! St2 = elemtype_check(Line, Type, Sz, St), {Sz,St2}. - + elemtype_check(_Line, float, 32, St) -> St; elemtype_check(_Line, float, 64, St) -> St; elemtype_check(Line, float, _Size, St) -> @@ -1710,7 +1710,7 @@ gexpr({call,_Line,{atom,_Lr,is_record},[E,{atom,Ln,Name}]}, Vt, St0) -> gexpr({call,Line,{atom,_Lr,is_record},[E,R]}, Vt, St0) -> {Asvt,St1} = gexpr_list([E,R], Vt, St0), {Asvt,add_error(Line, illegal_guard_expr, St1)}; -gexpr({call,Line,{remote,_Lr,{atom,_Lm,erlang},{atom,Lf,is_record}},[E,A]}, +gexpr({call,Line,{remote,_Lr,{atom,_Lm,erlang},{atom,Lf,is_record}},[E,A]}, Vt, St0) -> gexpr({call,Line,{atom,Lf,is_record},[E,A]}, Vt, St0); gexpr({call,_Line,{atom,_Lr,is_record},[E,{atom,_,_Name},{integer,_,_}]}, @@ -1777,7 +1777,7 @@ is_guard_test(E) -> %% is_guard_test(Expression, Forms) -> boolean(). is_guard_test(Expression, Forms) -> RecordAttributes = [A || A = {attribute, _, record, _D} <- Forms], - St0 = foldl(fun(Attr0, St1) -> + St0 = foldl(fun(Attr0, St1) -> Attr = zip_file_and_line(Attr0, "none"), attribute_state(Attr, St1) end, start(), RecordAttributes), @@ -1798,7 +1798,7 @@ is_guard_test2(G, RDs) -> %% is_guard_expr(Expression) -> boolean(). %% Test if an expression is a guard expression. -is_guard_expr(E) -> is_gexpr(E, []). +is_guard_expr(E) -> is_gexpr(E, []). is_gexpr({var,_L,_V}, _RDs) -> true; is_gexpr({char,_L,_C}, _RDs) -> true; @@ -1820,7 +1820,7 @@ is_gexpr({record_field,_L,Rec,_Name,Field}, RDs) -> is_gexpr({record,L,Name,Inits}, RDs) -> is_gexpr_fields(Inits, L, Name, RDs); is_gexpr({bin,_L,Fs}, RDs) -> - all(fun ({bin_element,_Line,E,Sz,_Ts}) -> + all(fun ({bin_element,_Line,E,Sz,_Ts}) -> is_gexpr(E, RDs) and (Sz =:= default orelse is_gexpr(Sz, RDs)) end, Fs); is_gexpr({call,_L,{atom,_Lf,F},As}, RDs) -> @@ -1902,8 +1902,8 @@ expr({record_index,Line,Name,Field}, _Vt, St) -> fun (Dfs, St1) -> record_field(Field, Name, Dfs, St1) end); expr({record,Line,Name,Inits}, Vt, St) -> check_record(Line, Name, St, - fun (Dfs, St1) -> - init_fields(Inits, Line, Name, Dfs, Vt, St1) + fun (Dfs, St1) -> + init_fields(Inits, Line, Name, Dfs, Vt, St1) end); expr({record_field,Line,_,_}=M, _Vt, St0) -> case expand_package(M, St0) of @@ -1969,7 +1969,7 @@ expr({'fun',Line,Body}, Vt, St) -> expr({call,_Line,{atom,_Lr,is_record},[E,{atom,Ln,Name}]}, Vt, St0) -> {Rvt,St1} = expr(E, Vt, St0), {Rvt,exist_record(Ln, Name, St1)}; -expr({call,Line,{remote,_Lr,{atom,_Lm,erlang},{atom,Lf,is_record}},[E,A]}, +expr({call,Line,{remote,_Lr,{atom,_Lm,erlang},{atom,Lf,is_record}},[E,A]}, Vt, St0) -> expr({call,Line,{atom,Lf,is_record},[E,A]}, Vt, St0); expr({call,L,{tuple,Lt,[{atom,Lm,erlang},{atom,Lf,is_record}]},As}, Vt, St) -> @@ -1995,7 +1995,7 @@ expr({call,Line,{atom,La,F},As}, Vt, St0) -> case erl_internal:bif(F, A) of true -> St3 = deprecated_function(Line, erlang, F, As, St2), - {Asvt,case is_warn_enabled(bif_clash, St3) andalso + {Asvt,case is_warn_enabled(bif_clash, St3) andalso is_bif_clash(F, A, St3) of false -> St3; @@ -2155,7 +2155,7 @@ def_fields(Fs0, Name, St0) -> foldl(fun ({record_field,Lf,{atom,La,F},V}, {Fs,St}) -> case exist_field(F, Fs) of true -> {Fs,add_error(Lf, {redefine_field,Name,F}, St)}; - false -> + false -> St1 = St#lint{recdef_top = true}, {_,St2} = expr(V, [], St1), %% Warnings and errors found are kept, but @@ -2306,7 +2306,7 @@ init_fields(Ifs, Line, Name, Dfs, Vt0, St0) -> Defs = init_fields(Ifs, Line, Dfs), {_,St2} = check_fields(Defs, Name, Dfs, Vt1, St1, fun expr/3), {Vt1,St1#lint{usage = St2#lint.usage}}. - + ginit_fields(Ifs, Line, Name, Dfs, Vt0, St0) -> {Vt1,St1} = check_fields(Ifs, Name, Dfs, Vt0, St0, fun gexpr/3), Defs = init_fields(Ifs, Line, Dfs), @@ -2316,7 +2316,7 @@ ginit_fields(Ifs, Line, Name, Dfs, Vt0, St0) -> IllErrs = [E || {_File,{_Line,erl_lint,illegal_guard_expr}}=E <- Errors], St4 = St1#lint{usage = Usage, errors = IllErrs ++ St1#lint.errors}, {Vt1,St4}. - + %% Default initializations to be carried out init_fields(Ifs, Line, Dfs) -> [ {record_field,Lf,{atom,La,F},copy_expr(Di, Line)} || @@ -2394,7 +2394,7 @@ check_type({ann_type, _L, [_Var, Type]}, SeenVars, St) -> check_type(Type, SeenVars, St); check_type({paren_type, _L, [Type]}, SeenVars, St) -> check_type(Type, SeenVars, St); -check_type({remote_type, L, [{atom, _, Mod}, {atom, _, Name}, Args]}, +check_type({remote_type, L, [{atom, _, Mod}, {atom, _, Name}, Args]}, SeenVars, #lint{module=CurrentMod} = St) -> St1 = case (dict:is_key({Name, length(Args)}, default_types()) @@ -2432,7 +2432,7 @@ check_type({type, L, 'fun', [Dom, Range]}, SeenVars, St) -> check_type({type, -1, product, [Dom, Range]}, SeenVars, St1); check_type({type, L, range, [From, To]}, SeenVars, St) -> St1 = - case {From, To} of + case {erl_eval:partial_eval(From), erl_eval:partial_eval(To)} of {{integer, _, X}, {integer, _, Y}} when X < Y -> St; _ -> add_error(L, {type_syntax, range}, St) end, @@ -2441,8 +2441,8 @@ check_type({type, _L, tuple, any}, SeenVars, St) -> {SeenVars, St}; check_type({type, _L, any}, SeenVars, St) -> {SeenVars, St}; check_type({type, L, binary, [Base, Unit]}, SeenVars, St) -> St1 = - case {Base, Unit} of - {{integer, _, BaseVal}, + case {erl_eval:partial_eval(Base), erl_eval:partial_eval(Unit)} of + {{integer, _, BaseVal}, {integer, _, UnitVal}} when BaseVal >= 0, UnitVal >= 0 -> St; _ -> add_error(L, {type_syntax, binary}, St) end, @@ -2467,7 +2467,13 @@ check_type({type, La, TypeName, Args}, SeenVars, #lint{usage=Usage} = St) -> UsedTypes = dict:store({TypeName, Arity}, La, OldUsed), St#lint{usage=Usage#usage{used_types=UsedTypes}} end, - check_type({type, -1, product, Args}, SeenVars, St1). + check_type({type, -1, product, Args}, SeenVars, St1); +check_type(I, SeenVars, St) -> + case erl_eval:partial_eval(I) of + {integer,_ILn,_Integer} -> {SeenVars, St}; + _Other -> + {SeenVars, add_error(element(2, I), {type_syntax, integer}, St)} + end. check_record_types(Line, Name, Fields, SeenVars, St) -> case dict:find(Name, St#lint.records) of @@ -2475,12 +2481,12 @@ check_record_types(Line, Name, Fields, SeenVars, St) -> case lists:all(fun({type, _, field_type, _}) -> true; (_) -> false end, Fields) of - true -> + true -> check_record_types(Fields, Name, DefFields, SeenVars, St, []); false -> {SeenVars, add_error(Line, {type_syntax, record}, St)} end; - error -> + error -> {SeenVars, add_error(Line, {undefined_record, Name}, St)} end. @@ -2606,7 +2612,7 @@ spec_decl(Line, MFA0, TypeSpecs, St0 = #lint{specs = Specs, module = Mod}) -> check_specs([FunType|Left], Arity, St0) -> {FunType1, CTypes} = case FunType of - {type, _, bounded_fun, [FT = {type, _, 'fun', _}, Cs]} -> + {type, _, bounded_fun, [FT = {type, _, 'fun', _}, Cs]} -> Types0 = [T || {type, _, constraint, [_, T]} <- Cs], {FT, lists:append(Types0)}; {type, _, 'fun', _} = FT -> {FT, []} @@ -2679,7 +2685,7 @@ check_unused_types(Forms, St = #lint{usage=Usage, types=Types}) -> {FirstFile, _} -> case dict:is_key(Type, UsedTypes) of true -> AccSt; - false -> + false -> add_warning(FileLine, {unused_type, Type}, AccSt) @@ -2834,7 +2840,7 @@ fun_clause({clause,_Line,H,G,B}, Vt0, St0) -> %% %% used variable has been used %% unused variable has been bound but not used -%% +%% %% Lines is a list of line numbers where the variable was bound. %% %% Report variable errors/warnings as soon as possible and then change @@ -2864,9 +2870,9 @@ pat_var(V, Line, Vt, Bvt, St) -> case orddict:find(V, Bvt) of {ok, {bound,_Usage,Ls}} -> {[],[{V,{bound,used,Ls}}],St}; - error -> + error -> case orddict:find(V, Vt) of - {ok,{bound,_Usage,Ls}} -> + {ok,{bound,_Usage,Ls}} -> {[{V,{bound,used,Ls}}],[],St}; {ok,{{unsafe,In},_Usage,Ls}} -> {[{V,{bound,used,Ls}}],[], @@ -2919,7 +2925,7 @@ pat_binsize_var(V, Line, Vt, Bvt, St) -> expr_var(V, Line, Vt, St0) -> case orddict:find(V, Vt) of - {ok,{bound,_Usage,Ls}} -> + {ok,{bound,_Usage,Ls}} -> {[{V,{bound,used,Ls}}],St0}; {ok,{{unsafe,In},_Usage,Ls}} -> {[{V,{bound,used,Ls}}], @@ -2957,7 +2963,7 @@ check_old_unused_vars(Vt, Vt0, St0) -> warn_unused_vars(U, Vt, St0). unused_vars(Vt, Vt0, _St0) -> - U0 = orddict:filter(fun (V, {_State,unused,_Ls}) -> + U0 = orddict:filter(fun (V, {_State,unused,_Ls}) -> case atom_to_list(V) of "_"++_ -> false; _ -> true @@ -2973,7 +2979,7 @@ warn_unused_vars(U, Vt, St0) -> false -> St0; true -> foldl(fun ({V,{_,unused,Ls}}, St) -> - foldl(fun (L, St2) -> + foldl(fun (L, St2) -> add_warning(L, {unused_var,V}, St2) end, St, Ls) @@ -3073,7 +3079,7 @@ vt_no_unsafe(Vt) -> [V || {_,{S,_U,_L}}=V <- Vt, -ifdef(NOTUSED). vunion(Vs1, Vs2) -> ordsets:union(vtnames(Vs1), vtnames(Vs2)). -vunion(Vss) -> foldl(fun (Vs, Uvs) -> +vunion(Vss) -> foldl(fun (Vs, Uvs) -> ordsets:union(vtnames(Vs), Uvs) end, [], Vss). @@ -3103,7 +3109,7 @@ modify_line(T, F0) -> %% Forms. modify_line1({function,F,A}, _Mf) -> {function,F,A}; modify_line1({function,M,F,A}, _Mf) -> {function,M,F,A}; -modify_line1({attribute,L,record,{Name,Fields}}, Mf) -> +modify_line1({attribute,L,record,{Name,Fields}}, Mf) -> {attribute,Mf(L),record,{Name,modify_line1(Fields, Mf)}}; modify_line1({attribute,L,spec,{Fun,Types}}, Mf) -> {attribute,Mf(L),spec,{Fun,modify_line1(Types, Mf)}}; @@ -3118,7 +3124,7 @@ modify_line1({warning,W}, _Mf) -> {warning,W}; modify_line1({error,W}, _Mf) -> {error,W}; %% Expressions. modify_line1({clauses,Cs}, Mf) -> {clauses,modify_line1(Cs, Mf)}; -modify_line1({typed_record_field,Field,Type}, Mf) -> +modify_line1({typed_record_field,Field,Type}, Mf) -> {typed_record_field,modify_line1(Field, Mf),modify_line1(Type, Mf)}; modify_line1({Tag,L}, Mf) -> {Tag,Mf(L)}; modify_line1({Tag,L,E1}, Mf) -> @@ -3154,7 +3160,7 @@ check_record_info_call(Line,_La,_As,St) -> has_wildcard_field([{record_field,_Lf,{var,_La,'_'},_Val}|_Fs]) -> true; has_wildcard_field([_|Fs]) -> has_wildcard_field(Fs); has_wildcard_field([]) -> false. - + %% check_remote_function(Line, ModuleName, FuncName, [Arg], State) -> State. %% Perform checks on known remote calls. @@ -3170,7 +3176,7 @@ check_remote_function(Line, M, F, As, St0) -> check_qlc_hrl(Line, M, F, As, St) -> Arity = length(As), case As of - [{lc,_L,_E,_Qs}|_] when M =:= qlc, F =:= q, + [{lc,_L,_E,_Qs}|_] when M =:= qlc, F =:= q, Arity < 3, not St#lint.xqlc -> add_warning(Line, {missing_qlc_hrl, Arity}, St); _ -> @@ -3355,11 +3361,11 @@ extract_sequence(3, [$.,_|Fmt], Need) -> extract_sequence(4, Fmt, Need); extract_sequence(3, Fmt, Need) -> extract_sequence(4, Fmt, Need); -extract_sequence(4, [$t, $c | Fmt], Need) -> - extract_sequence(5, [$c|Fmt], Need); -extract_sequence(4, [$t, $s | Fmt], Need) -> - extract_sequence(5, [$s|Fmt], Need); -extract_sequence(4, [$t, C | _Fmt], _Need) -> +extract_sequence(4, [$t, $c | Fmt], Need) -> + extract_sequence(5, [$c|Fmt], Need); +extract_sequence(4, [$t, $s | Fmt], Need) -> + extract_sequence(5, [$s|Fmt], Need); +extract_sequence(4, [$t, C | _Fmt], _Need) -> {error,"invalid control ~t" ++ [C]}; extract_sequence(4, Fmt, Need) -> extract_sequence(5, Fmt, Need); |