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-rw-r--r--lib/stdlib/src/erl_lint.erl25
-rw-r--r--lib/stdlib/src/erl_parse.yrl14
-rw-r--r--lib/stdlib/test/erl_lint_SUITE.erl27
-rw-r--r--lib/stdlib/test/erl_pp_SUITE.erl11
4 files changed, 42 insertions, 35 deletions
diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl
index 4a4019b8bd..3ce6abe752 100644
--- a/lib/stdlib/src/erl_lint.erl
+++ b/lib/stdlib/src/erl_lint.erl
@@ -373,9 +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
@@ -2878,7 +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.
@@ -2892,7 +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.
@@ -2929,7 +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]} ->
@@ -2937,18 +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() ->
diff --git a/lib/stdlib/src/erl_parse.yrl b/lib/stdlib/src/erl_parse.yrl
index ae42a8f0b1..e07ab2efc2 100644
--- a/lib/stdlib/src/erl_parse.yrl
+++ b/lib/stdlib/src/erl_parse.yrl
@@ -85,10 +85,6 @@ type_spec -> '(' spec_fun type_sigs ')' : {'$2', '$3'}.
spec_fun -> atom : '$1'.
spec_fun -> atom ':' atom : {'$1', '$3'}.
-%% The following two are retained only for backwards compatibility;
-%% they are not part of the EEP syntax and should be removed.
-spec_fun -> atom '/' integer '::' : {'$1', '$3'}.
-spec_fun -> atom ':' atom '/' integer '::' : {'$1', '$3', '$5'}.
typed_attr_val -> expr ',' typed_record_fields : {typed_record, '$1', '$3'}.
typed_attr_val -> expr '::' top_type : {type_def, '$1', '$3'}.
@@ -634,14 +630,8 @@ build_type_spec({Kind,Aa}, {SpecFun, TypeSpecs})
{atom, _, Fun} ->
{Fun, find_arity_from_specs(TypeSpecs)};
{{atom,_, Mod}, {atom,_, Fun}} ->
- {Mod,Fun,find_arity_from_specs(TypeSpecs)};
- {{atom, _, Fun}, {integer, _, Arity}} ->
- %% Old style spec. Allow this for now.
- {Fun,Arity};
- {{atom,_, Mod}, {atom, _, Fun}, {integer, _, Arity}} ->
- %% Old style spec. Allow this for now.
- {Mod,Fun,Arity}
- end,
+ {Mod,Fun,find_arity_from_specs(TypeSpecs)}
+ end,
{attribute,Aa,Kind,{NewSpecFun, TypeSpecs}}.
find_arity_from_specs([Spec|_]) ->
diff --git a/lib/stdlib/test/erl_lint_SUITE.erl b/lib/stdlib/test/erl_lint_SUITE.erl
index 1d35cc71a5..3c746a13d7 100644
--- a/lib/stdlib/test/erl_lint_SUITE.erl
+++ b/lib/stdlib/test/erl_lint_SUITE.erl
@@ -65,7 +65,7 @@
too_many_arguments/1,
basic_errors/1,bin_syntax_errors/1,
predef/1,
- maps/1,maps_type/1,otp_11851/1
+ maps/1,maps_type/1,otp_11851/1,otp_11879/1
]).
% Default timetrap timeout (set in init_per_testcase).
@@ -94,7 +94,7 @@ all() ->
bif_clash, behaviour_basic, behaviour_multiple, otp_11861,
otp_7550, otp_8051, format_warn, {group, on_load},
too_many_arguments, basic_errors, bin_syntax_errors, predef,
- maps, maps_type, otp_11851].
+ maps, maps_type, otp_11851, otp_11879].
groups() ->
[{unused_vars_warn, [],
@@ -3849,6 +3849,29 @@ otp_11851(Config) when is_list(Config) ->
[] = run(Config, Ts),
ok.
+otp_11879(doc) ->
+ "OTP-11879: The -spec f/a :: (As) -> B; syntax removed, "
+ "and is_subtype/2 deprecated";
+otp_11879(_Config) ->
+ Fs = [{attribute,0,file,{"file.erl",0}},
+ {attribute,0,module,m},
+ {attribute,1,spec,
+ {{f,1},
+ [{type,2,'fun',[{type,3,product,[{var,4,'V1'},
+ {var,5,'V1'}]},
+ {type,6,integer,[]}]}]}},
+ {attribute,20,callback,
+ {{cb,21},
+ [{type,22,'fun',[{type,23,product,[{var,24,'V1'},
+ {var,25,'V1'}]},
+ {type,6,integer,[]}]}]}}],
+ {error,[{"file.erl",
+ [{1,erl_lint,{spec_fun_undefined,{f,1}}},
+ {2,erl_lint,spec_wrong_arity},
+ {22,erl_lint,callback_wrong_arity}]}],
+ []} = compile:forms(Fs, [return,report]),
+ ok.
+
run(Config, Tests) ->
F = fun({N,P,Ws,E}, BadL) ->
case catch run_test(Config, P, Ws) of
diff --git a/lib/stdlib/test/erl_pp_SUITE.erl b/lib/stdlib/test/erl_pp_SUITE.erl
index 8cdd2ceca9..8a128b3815 100644
--- a/lib/stdlib/test/erl_pp_SUITE.erl
+++ b/lib/stdlib/test/erl_pp_SUITE.erl
@@ -876,6 +876,9 @@ type_examples() ->
{ex30,<<"-type t99() ::"
"{t2(),'\\'t::4'(),t5(),t6(),t7(),t8(),t10(),t14(),"
"t15(),t20(),t21(), t22(),t25()}. ">>},
+ %% Writing constraints as is_subtype(V, T) is not supported since
+ %% Erlang/OTP 19.0, but as long as the parser recognizes the
+ %% is_subtype(V, T) syntax, we need a few examples of the syntax.
{ex31,<<"-spec t1(FooBar :: t99()) -> t99();"
"(t2()) -> t2();"
"('\\'t::4'()) -> '\\'t::4'() when is_subtype('\\'t::4'(), t24);"
@@ -1000,18 +1003,10 @@ otp_8567(Config) when is_list(Config) ->
"t() ->\n"
" 3.\n"
"\n"
- "-spec(t1/1 :: (ot()) -> ot1()).\n"
- "t1(A) ->\n"
- " A.\n"
- "\n"
"-spec(t2 (ot()) -> ot1()).\n"
"t2(A) ->\n"
" A.\n"
"\n"
- "-spec(otp_8567:t3/1 :: (ot()) -> ot1()).\n"
- "t3(A) ->\n"
- " A.\n"
- "\n"
"-spec(otp_8567:t4 (ot()) -> ot1()).\n"
"t4(A) ->\n"
" A.\n">>,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 07:36:22 +0000