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-rw-r--r--lib/stdlib/src/erl_lint.erl51
1 files changed, 24 insertions, 27 deletions
diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl
index e940ad6956..4a42754d92 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) ->
@@ -2876,7 +2878,7 @@ 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 +2892,8 @@ 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 +2930,7 @@ 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 +2938,16 @@ 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 +3191,8 @@ 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 +3486,6 @@ 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 +3554,7 @@ 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 +3565,8 @@ 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.