diff options
| -rw-r--r-- | lib/stdlib/src/erl_lint.erl | 12 | ||||
| -rw-r--r-- | lib/stdlib/test/erl_lint_SUITE.erl | 23 |
2 files changed, 26 insertions, 9 deletions
diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl index 2f29954dc9..cfbcf54d95 100644 --- a/lib/stdlib/src/erl_lint.erl +++ b/lib/stdlib/src/erl_lint.erl @@ -1808,7 +1808,7 @@ guard_test2({call,Line,{atom,_La,F},As}=G, Vt, St0) -> {Asvt,St1} = gexpr_list(As, Vt, St0), %Always check this. A = length(As), case erl_internal:type_test(F, A) of - true when F =/= is_record -> + true when F =/= is_record, A =/= 2 -> case no_guard_bif_clash(St1, {F,A}) of false -> {Asvt,add_error(Line, {illegal_guard_local_call,{F,A}}, St1)}; @@ -1872,9 +1872,15 @@ gexpr({call,Line,{atom,_Lr,is_record},[E,R]}, Vt, St0) -> gexpr({call,Line,{remote,_Lr,{atom,_Lm,erlang},{atom,Lf,is_record}},[E,A]}, Vt, St0) -> gexpr({call,Line,{atom,Lf,is_record},[E,A]}, Vt, St0); -gexpr({call,_Line,{atom,_Lr,is_record},[E,{atom,_,_Name},{integer,_,_}]}, +gexpr({call,Line,{atom,_Lr,is_record},[E0,{atom,_,_Name},{integer,_,_}]}, Vt, St0) -> - gexpr(E, Vt, St0); + {E,St1} = gexpr(E0, Vt, St0), + case no_guard_bif_clash(St0, {is_record,3}) of + true -> + {E,St1}; + false -> + {E,add_error(Line, {illegal_guard_local_call,{is_record,3}}, St1)} + end; gexpr({call,Line,{atom,_Lr,is_record},[_,_,_]=Asvt0}, Vt, St0) -> {Asvt,St1} = gexpr_list(Asvt0, Vt, St0), {Asvt,add_error(Line, illegal_guard_expr, St1)}; diff --git a/lib/stdlib/test/erl_lint_SUITE.erl b/lib/stdlib/test/erl_lint_SUITE.erl index e4c7fd5b02..4e93f056ad 100644 --- a/lib/stdlib/test/erl_lint_SUITE.erl +++ b/lib/stdlib/test/erl_lint_SUITE.erl @@ -2633,22 +2633,33 @@ bif_clash(Config) when is_list(Config) -> [warn_unused_import], {warnings,[{2,erl_lint,{redefine_bif_import,{binary_part,3}}}]}}, %% Don't accept call to a guard BIF if there is a local definition - %% or an import with the same name. + %% or an import with the same name. Note: is_record/2 is an + %% exception, since it is more of syntatic sugar than a real BIF. {clash21, <<"-export([is_list/1]). -import(x, [is_tuple/1]). + -record(r, {a,b}). x(T) when is_tuple(T) -> ok; x(T) when is_list(T) -> ok. y(T) when is_tuple(T) =:= true -> ok; - y(T) when is_list(T) =:= true -> ok. + y(T) when is_list(T) =:= true -> ok; + y(T) when is_record(T, r, 3) -> ok; + y(T) when is_record(T, r, 3) =:= true -> ok; + y(T) when is_record(T, r) =:= true -> ok. is_list(_) -> ok. + is_record(_, _) -> + ok. + is_record(_, _, _) -> + ok. ">>, [{no_auto_import,[{is_tuple,1}]}], - {errors,[{3,erl_lint,{illegal_guard_local_call,{is_tuple,1}}}, - {4,erl_lint,{illegal_guard_local_call,{is_list,1}}}, - {5,erl_lint,{illegal_guard_local_call,{is_tuple,1}}}, - {6,erl_lint,{illegal_guard_local_call,{is_list,1}}}],[]}} + {errors,[{4,erl_lint,{illegal_guard_local_call,{is_tuple,1}}}, + {5,erl_lint,{illegal_guard_local_call,{is_list,1}}}, + {6,erl_lint,{illegal_guard_local_call,{is_tuple,1}}}, + {7,erl_lint,{illegal_guard_local_call,{is_list,1}}}, + {8,erl_lint,{illegal_guard_local_call,{is_record,3}}}, + {9,erl_lint,{illegal_guard_local_call,{is_record,3}}}],[]}} ], ?line [] = run(Config, Ts), |