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-rw-r--r--erts/preloaded/src/erlang.erl9
-rw-r--r--lib/compiler/doc/src/compile.xml35
-rw-r--r--lib/stdlib/src/erl_lint.erl25
-rw-r--r--lib/stdlib/test/erl_lint_SUITE.erl26
4 files changed, 43 insertions, 52 deletions
diff --git a/erts/preloaded/src/erlang.erl b/erts/preloaded/src/erlang.erl
index adee8795b2..935c2de253 100644
--- a/erts/preloaded/src/erlang.erl
+++ b/erts/preloaded/src/erlang.erl
@@ -44,7 +44,14 @@
-deprecated([hash/2]).
-deprecated([concat_binary/1]).
--compile(nowarn_bif_clash).
+% Get rid of autoimports of spawn to avoid clashes with ourselves.
+-compile({no_auto_import,[spawn/1]}).
+-compile({no_auto_import,[spawn/4]}).
+-compile({no_auto_import,[spawn_link/1]}).
+-compile({no_auto_import,[spawn_link/4]}).
+-compile({no_auto_import,[spawn_opt/2]}).
+-compile({no_auto_import,[spawn_opt/4]}).
+-compile({no_auto_import,[spawn_opt/5]}).
%%--------------------------------------------------------------------------
diff --git a/lib/compiler/doc/src/compile.xml b/lib/compiler/doc/src/compile.xml
index 3a70f6277b..e1f24b602d 100644
--- a/lib/compiler/doc/src/compile.xml
+++ b/lib/compiler/doc/src/compile.xml
@@ -355,51 +355,34 @@
<tag><c>nowarn_bif_clash</c></tag>
<item>
- <p>By default, the compiler will issue an error or warning
- when replacing an auto-imported BIF. For local functions
- having names clashing with an auto-imported BIF, the error
- or warning is issued whenever it is called without using a
- module prefix. For explicitly imported functions, the
- error or warning will be issued as soon as it's imported
- (regardless of calls). If the auto-imported BIF was present
- before OTP R14A it will be a fatal error to override it,
- otherwise only a warning will be issued.</p>
+ <p>This option is removed, it will generate a fatal error if used.</p>
<warning>
<p>Beginning with R14A, the compiler no longer calls the
auto-imported BIF if the name clashes with a local or
explicitly imported function and a call without explicit
module name is issued. Instead the local or imported
- function is called. Use of <c>nowarn_bif_clash</c> makes a
+ function is called. Still accepting <c>nowarn_bif_clash</c> would makes a
module calling functions clashing with autoimported BIFs
compile with both the old and new compilers, but with
- completely different semantics, why a warning is always
- issued if any code uses this option.</p>
+ completely different semantics, why the option was removed.</p>
<p>The use of this option has always been strongly discouraged.
- From OTP R14A and forward it's also deprecated.</p>
- <p>The only module who actually could have some legitimate use for
- this option is the module <c>erlang</c>, which in
- itself contains auto-imported functions, other modules
- should never use it.</p>
+ From OTP R14A and forward it's an error to use it.</p>
<p>To resolve BIF clashes, use explicit module names or the
- <c>{no_auto_import,[F/A]}</c> directive.</p>
- <p><c>nowarn_bif_clash</c> <em>will</em> be removed in a future release.</p>
+ <c>{no_auto_import,[F/A]}</c> compiler directive.</p>
</warning>
</item>
<tag><c>{nowarn_bif_clash, FAs}</c></tag>
<item>
- <p>Turns off warnings as <c>nowarn_bif_clash</c> but only
- for the mentioned local functions. <c>FAs</c> is a tuple
- <c>{Name,Arity}</c> or a list of such tuples.</p>
+ <p>This option is removed, it will generate a fatal error if used.</p>
+
<warning>
<p>The use of this option has always been strongly discouraged.
- From OTP R14A and forward it's also deprecated and a warning will be issued
- whenever it is used.</p>
+ From OTP R14A and forward it's an error to use it.</p>
<p>To resolve BIF clashes, use explicit module names or the
- <c>{no_auto_import,[F/A]}</c> directive instead.</p>
- <p><c>nowarn_bif_clash</c> <em>will</em> be removed in a future release.</p>
+ <c>{no_auto_import,[F/A]}</c> compiler directive.</p>
</warning>
</item>
diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl
index 631ad0c1e3..29a949432b 100644
--- a/lib/stdlib/src/erl_lint.erl
+++ b/lib/stdlib/src/erl_lint.erl
@@ -163,8 +163,8 @@ format_error({bad_nowarn_unused_function,{F,A}}) ->
io_lib:format("function ~w/~w undefined", [F,A]);
format_error({bad_nowarn_bif_clash,{F,A}}) ->
io_lib:format("function ~w/~w undefined", [F,A]);
-format_error(deprecated_nowarn_bif_clash) ->
- io_lib:format("compile directive nowarn_bif_clash is deprecated,~n"
+format_error(disallowed_nowarn_bif_clash) ->
+ io_lib:format("compile directive nowarn_bif_clash is no longer allowed,~n"
" - use explicit module names or -compile({no_auto_import, [F/A]})", []);
format_error({bad_nowarn_deprecated_function,{M,F,A}}) ->
io_lib:format("~w:~w/~w is not a deprecated function", [M,F,A]);
@@ -553,7 +553,7 @@ forms(Forms0, St0) ->
Forms = eval_file_attribute(Forms0, St0),
Locals = local_functions(Forms),
AutoImportSuppressed = auto_import_suppressed(St0#lint.compile),
- StDeprecated = deprecated_compile_flags(Forms,St0),
+ StDeprecated = disallowed_compile_flags(Forms,St0),
%% Line numbers are from now on pairs {File,Line}.
St1 = includes_qlc_hrl(Forms, StDeprecated#lint{locals = Locals,
no_auto = AutoImportSuppressed}),
@@ -762,22 +762,23 @@ not_deprecated(Forms, St0) ->
St1 = func_line_warning(bad_nowarn_deprecated_function, Bad, St0),
St1#lint{not_deprecated = ordsets:from_list(Nowarn)}.
-deprecated_compile_flags(Forms, St0) ->
+%% The nowarn_bif_clash directive is not only deprecated, it's actually an error from R14A
+disallowed_compile_flags(Forms, St0) ->
%% There are (still) no line numbers in St0#lint.compile.
- Warnings0 = [ {St0#lint.file,{L,erl_lint,deprecated_nowarn_bif_clash}} ||
+ Errors0 = [ {St0#lint.file,{L,erl_lint,disallowed_nowarn_bif_clash}} ||
{attribute,[{line,{_,L}}],compile,nowarn_bif_clash} <- Forms ],
- Warnings1 = [ {St0#lint.file,{L,erl_lint,deprecated_nowarn_bif_clash}} ||
+ Errors1 = [ {St0#lint.file,{L,erl_lint,disallowed_nowarn_bif_clash}} ||
{attribute,[{line,{_,L}}],compile,{nowarn_bif_clash, {_,_}}} <- Forms ],
Disabled = (not is_warn_enabled(bif_clash, St0)),
- Warnings = if
- Disabled andalso Warnings0 =:= [] ->
- [{St0#lint.file,{erl_lint,deprecated_nowarn_bif_clash}} | St0#lint.warnings];
+ Errors = if
+ Disabled andalso Errors0 =:= [] ->
+ [{St0#lint.file,{erl_lint,disallowed_nowarn_bif_clash}} | St0#lint.errors];
Disabled ->
- Warnings0 ++ Warnings1 ++ St0#lint.warnings;
+ Errors0 ++ Errors1 ++ St0#lint.errors;
true ->
- Warnings1 ++ St0#lint.warnings
+ Errors1 ++ St0#lint.errors
end,
- St0#lint{warnings=Warnings}.
+ St0#lint{errors=Errors}.
%% post_traversal_check(Forms, State0) -> State.
%% Do some further checking after the forms have been traversed and
diff --git a/lib/stdlib/test/erl_lint_SUITE.erl b/lib/stdlib/test/erl_lint_SUITE.erl
index 4a366f6a28..8fe7881081 100644
--- a/lib/stdlib/test/erl_lint_SUITE.erl
+++ b/lib/stdlib/test/erl_lint_SUITE.erl
@@ -1785,7 +1785,7 @@ otp_5362(Config) when is_list(Config) ->
{16,erl_lint,{field_name_is_variable,ok,'Var'}}]}},
%% Nowarn_bif_clash has changed behaviour as local functions
- %% nowdays supersede auto-imported BIFs, why nowarn_bif_clash in itself generates a warning
+ %% nowdays supersede auto-imported BIFs, why nowarn_bif_clash in itself generates an error
%% (OTP-8579) /PaN
{otp_5362_4,
<<"-compile(nowarn_deprecated_function).
@@ -1810,8 +1810,8 @@ otp_5362(Config) when is_list(Config) ->
spawn(A).
">>,
{[nowarn_unused_function]},
- {warnings,
- [{2,erl_lint,deprecated_nowarn_bif_clash}]}},
+ {errors,
+ [{2,erl_lint,disallowed_nowarn_bif_clash}],[]}},
%% The special nowarn_X are not affected by general warn_X.
{otp_5362_6,
@@ -1824,8 +1824,8 @@ otp_5362(Config) when is_list(Config) ->
{[nowarn_unused_function,
warn_deprecated_function,
warn_bif_clash]},
- {warnings,
- [{2,erl_lint,deprecated_nowarn_bif_clash}]}},
+ {errors,
+ [{2,erl_lint,disallowed_nowarn_bif_clash}],[]}},
{otp_5362_7,
<<"-export([spawn/1]).
@@ -1840,10 +1840,10 @@ otp_5362(Config) when is_list(Config) ->
spawn(A).
">>,
{[nowarn_unused_function]},
- {error,[{4,erl_lint,{bad_nowarn_bif_clash,{spawn,2}}}],
- [{3,erl_lint,deprecated_nowarn_bif_clash},
- {4,erl_lint,deprecated_nowarn_bif_clash},
- {5,erl_lint,{bad_nowarn_deprecated_function,{3,hash,-1}}},
+ {error,[{3,erl_lint,disallowed_nowarn_bif_clash},
+ {4,erl_lint,disallowed_nowarn_bif_clash},
+ {4,erl_lint,{bad_nowarn_bif_clash,{spawn,2}}}],
+ [{5,erl_lint,{bad_nowarn_deprecated_function,{3,hash,-1}}},
{5,erl_lint,{bad_nowarn_deprecated_function,{erlang,hash,-1}}},
{5,erl_lint,{bad_nowarn_deprecated_function,{{a,b,c},hash,-1}}}]}
},
@@ -1882,8 +1882,8 @@ otp_5362(Config) when is_list(Config) ->
{[nowarn_unused_function,
warn_deprecated_function,
warn_bif_clash]},
- {warnings,
- [{2,erl_lint,deprecated_nowarn_bif_clash}]}}
+ {errors,
+ [{2,erl_lint,disallowed_nowarn_bif_clash}],[]}}
],
@@ -2409,7 +2409,7 @@ bif_clash(Config) when is_list(Config) ->
[],
{errors,[{2,erl_lint,{call_to_redefined_old_bif,{size,1}}}],[]}},
- %% Verify that (some) warnings can be turned off.
+ %% Verify that warnings can not be turned off in the old way.
{clash2,
<<"-export([t/1,size/1]).
t(X) ->
@@ -2425,7 +2425,7 @@ bif_clash(Config) when is_list(Config) ->
abs(X) -> erlang:abs(X).
">>,
{[nowarn_unused_function,nowarn_bif_clash]},
- {warnings,[{erl_lint,deprecated_nowarn_bif_clash}]}},
+ {errors,[{erl_lint,disallowed_nowarn_bif_clash}],[]}},
%% As long as noone calls an overridden BIF, it's totally OK
{clash3,
<<"-export([size/1]).
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 16:51:16 +0000