diff options
| -rw-r--r-- | lib/stdlib/src/erl_lint.erl | 28 | ||||
| -rw-r--r-- | lib/stdlib/test/erl_lint_SUITE.erl | 10 |
2 files changed, 30 insertions, 8 deletions
diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl index e9332ce069..5ec9b9053a 100644 --- a/lib/stdlib/src/erl_lint.erl +++ b/lib/stdlib/src/erl_lint.erl @@ -238,7 +238,11 @@ 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]); + io_lib:format("~p/~p obsolete (use is_~p/~p)", [F, A, F, A]); +format_error({obsolete_guard_overridden,Test}) -> + io_lib:format("obsolete ~s/1 (meaning is_~s/1) is illegal when " + "there is a local/imported function named is_~p/1 ", + [Test,Test,Test]); format_error({too_many_arguments,Arity}) -> io_lib:format("too many arguments (~w) - " "maximum allowed is ~w", [Arity,?MAX_ARGUMENTS]); @@ -3618,16 +3622,26 @@ obsolete_guard({call,Line,{atom,Lr,F},As}, St0) -> false -> deprecated_function(Line, erlang, F, As, St0); true -> - case is_warn_enabled(obsolete_guard, St0) of - true -> - add_warning(Lr,{obsolete_guard, {F, Arity}}, St0); - false -> - St0 - end + St = case is_warn_enabled(obsolete_guard, St0) of + true -> + add_warning(Lr, {obsolete_guard, {F, Arity}}, St0); + false -> + St0 + end, + test_overriden_by_local(Lr, F, Arity, St) end; obsolete_guard(_G, St) -> St. +test_overriden_by_local(Line, OldTest, Arity, St) -> + ModernTest = list_to_atom("is_"++atom_to_list(OldTest)), + case is_local_function(St#lint.locals, {ModernTest, Arity}) of + true -> + add_error(Line, {obsolete_guard_overridden,OldTest}, St); + false -> + St + end. + %% keyword_warning(Line, Atom, State) -> State. %% Add warning for atoms that will be reserved keywords in the future. %% (Currently, no such keywords to warn for.) diff --git a/lib/stdlib/test/erl_lint_SUITE.erl b/lib/stdlib/test/erl_lint_SUITE.erl index d916eb3eef..4ee3950882 100644 --- a/lib/stdlib/test/erl_lint_SUITE.erl +++ b/lib/stdlib/test/erl_lint_SUITE.erl @@ -1554,7 +1554,15 @@ guard(Config) when is_list(Config) -> [], {errors,[{1,erl_lint,illegal_guard_expr}, {2,erl_lint,illegal_guard_expr}], - []}} + []}}, + {guard10, + <<"is_port(_) -> false. + t(P) when port(P) -> ok. + ">>, + [], + {error, + [{2,erl_lint,{obsolete_guard_overridden,port}}], + [{2,erl_lint,{obsolete_guard,{port,1}}}]}} ], [] = run(Config, Ts1), ok. |