diff options
Diffstat (limited to 'lib/stdlib/src/erl_lint.erl')
| -rw-r--r-- | lib/stdlib/src/erl_lint.erl | 56 |
1 files changed, 29 insertions, 27 deletions
diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl index e940ad6956..9ef4acdf5f 100644 --- a/lib/stdlib/src/erl_lint.erl +++ b/lib/stdlib/src/erl_lint.erl @@ -31,12 +31,8 @@ -export([is_guard_expr/1]). -export([bool_option/4,value_option/3,value_option/7]). --export([modify_line/2]). - -import(lists, [member/2,map/2,foldl/3,foldr/3,mapfoldl/3,all/2,reverse/1]). --deprecated([{modify_line, 2, next_major_release}]). - %% bool_option(OnOpt, OffOpt, Default, Options) -> boolean(). %% value_option(Flag, Default, Options) -> Value. %% value_option(Flag, Default, OnOpt, OnVal, OffOpt, OffVal, Options) -> @@ -79,7 +75,7 @@ value_option(Flag, Default, On, OnVal, Off, OffVal, Opts) -> %%-define(DEBUGF(X,Y), io:format(X, Y)). -define(DEBUGF(X,Y), void). --type line() :: erl_anno:line(). % a convenient alias +-type line() :: erl_anno:anno(). % a convenient alias -type fa() :: {atom(), arity()}. % function+arity -type ta() :: {atom(), arity()}. % type+arity @@ -238,6 +234,9 @@ format_error({removed, MFA, ReplacementMFA, Rel}) -> "use ~s", [format_mfa(MFA), Rel, format_mfa(ReplacementMFA)]); format_error({removed, MFA, String}) when is_list(String) -> io_lib:format("~s: ~s", [format_mfa(MFA), String]); +format_error({removed_type, MNA, ReplacementMNA, Rel}) -> + io_lib:format("the type ~s was removed in ~s; use ~s instead", + [format_mna(MNA), Rel, format_mna(ReplacementMNA)]); format_error({obsolete_guard, {F, A}}) -> io_lib:format("~p/~p obsolete", [F, A]); format_error({too_many_arguments,Arity}) -> @@ -374,9 +373,9 @@ format_error({spec_fun_undefined, {F, A}}) -> format_error({missing_spec, {F,A}}) -> io_lib:format("missing specification for function ~w/~w", [F, A]); format_error(spec_wrong_arity) -> - "spec has the wrong arity"; + "spec has wrong arity"; format_error(callback_wrong_arity) -> - "callback has the wrong arity"; + "callback has wrong arity"; format_error({deprecated_builtin_type, {Name, Arity}, Replacement, Rel}) -> UseS = case Replacement of @@ -416,6 +415,9 @@ format_mfa({M, F, A}) when is_integer(A) -> format_mf(M, F, ArityString) when is_atom(M), is_atom(F) -> atom_to_list(M) ++ ":" ++ atom_to_list(F) ++ "/" ++ ArityString. +format_mna({M, N, A}) when is_integer(A) -> + atom_to_list(M) ++ ":" ++ atom_to_list(N) ++ gen_type_paren(A). + format_where(L) when is_integer(L) -> io_lib:format("(line ~p)", [L]); format_where({L,C}) when is_integer(L), is_integer(C) -> @@ -694,7 +696,12 @@ set_form_file({function,L,N,A,C}, File) -> set_form_file(Form, _File) -> Form. +set_file(Ts, File) when is_list(Ts) -> + [anno_set_file(T, File) || T <- Ts]; set_file(T, File) -> + anno_set_file(T, File). + +anno_set_file(T, File) -> F = fun(Anno) -> erl_anno:set_file(File, Anno) end, erl_parse:map_anno(F, T). @@ -2876,7 +2883,7 @@ spec_decl(Line, MFA0, TypeSpecs, St0 = #lint{specs = Specs, module = Mod}) -> St1 = St0#lint{specs = dict:store(MFA, Line, Specs)}, case dict:is_key(MFA, Specs) of true -> add_error(Line, {redefine_spec, MFA0}, St1); - false -> check_specs(TypeSpecs, Arity, St1) + false -> check_specs(TypeSpecs, spec_wrong_arity, Arity, St1) end. %% callback_decl(Line, Fun, Types, State) -> State. @@ -2890,7 +2897,8 @@ callback_decl(Line, MFA0, TypeSpecs, St1 = St0#lint{callbacks = dict:store(MFA, Line, Callbacks)}, case dict:is_key(MFA, Callbacks) of true -> add_error(Line, {redefine_callback, MFA0}, St1); - false -> check_specs(TypeSpecs, Arity, St1) + false -> check_specs(TypeSpecs, callback_wrong_arity, + Arity, St1) end end. @@ -2927,7 +2935,7 @@ is_fa({FuncName, Arity}) when is_atom(FuncName), is_integer(Arity), Arity >= 0 -> true; is_fa(_) -> false. -check_specs([FunType|Left], Arity, St0) -> +check_specs([FunType|Left], ETag, Arity, St0) -> {FunType1, CTypes} = case FunType of {type, _, bounded_fun, [FT = {type, _, 'fun', _}, Cs]} -> @@ -2935,18 +2943,16 @@ check_specs([FunType|Left], Arity, St0) -> {FT, lists:append(Types0)}; {type, _, 'fun', _} = FT -> {FT, []} end, - SpecArity = - case FunType1 of - {type, L, 'fun', [any, _]} -> any; - {type, L, 'fun', [{type, _, product, D}, _]} -> length(D) - end, + {type, L, 'fun', [{type, _, product, D}, _]} = FunType1, + SpecArity = length(D), St1 = case Arity =:= SpecArity of true -> St0; - false -> add_error(L, spec_wrong_arity, St0) + false -> %% Cannot happen if called from the compiler. + add_error(L, ETag, St0) end, St2 = check_type({type, nowarn(), product, [FunType1|CTypes]}, St1), - check_specs(Left, Arity, St2); -check_specs([], _Arity, St) -> + check_specs(Left, ETag, Arity, St2); +check_specs([], _ETag, _Arity, St) -> St. nowarn() -> @@ -3190,8 +3196,8 @@ handle_generator(P,E,Vt,Uvt,St0) -> handle_bitstring_gen_pat({bin,_,Segments=[_|_]},St) -> case lists:last(Segments) of {bin_element,Line,{var,_,_},default,Flags} when is_list(Flags) -> - case member(binary, Flags) orelse member(bits, Flags) - orelse member(bitstring, Flags) of + case member(binary, Flags) orelse member(bytes, Flags) + orelse member(bits, Flags) orelse member(bitstring, Flags) of true -> add_error(Line, unsized_binary_in_bin_gen_pattern, St); false -> @@ -3485,13 +3491,6 @@ vt_no_unused(Vt) -> [V || {_,{_,U,_L}}=V <- Vt, U =/= unused]. copy_expr(Expr, Anno) -> erl_parse:map_anno(fun(_A) -> Anno end, Expr). -%% modify_line(Form, Fun) -> Form -%% modify_line(Expression, Fun) -> Expression -%% Applies Fun to each line number occurrence. - -modify_line(T, F0) -> - erl_parse:map_anno(F0, T). - %% Check a record_info call. We have already checked that it is not %% shadowed by an import. @@ -3560,6 +3559,7 @@ deprecated_function(Line, M, F, As, St) -> St end. +-dialyzer({no_match, deprecated_type/5}). deprecated_type(L, M, N, As, St) -> NAs = length(As), case otp_internal:obsolete_type(M, N, NAs) of @@ -3570,6 +3570,8 @@ deprecated_type(L, M, N, As, St) -> false -> St end; + {removed, Replacement, Rel} -> + add_warning(L, {removed_type, {M,N,NAs}, Replacement, Rel}, St); no -> St end. |