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-rw-r--r--lib/stdlib/src/erl_lint.erl41
1 files changed, 21 insertions, 20 deletions
diff --git a/lib/stdlib/src/erl_lint.erl b/lib/stdlib/src/erl_lint.erl
index 5d45260fe9..a1af0057ca 100644
--- a/lib/stdlib/src/erl_lint.erl
+++ b/lib/stdlib/src/erl_lint.erl
@@ -1804,12 +1804,19 @@ guard_test(G, Vt, St0) ->
%% Specially handle record type test here.
guard_test2({call,Line,{atom,Lr,record},[E,A]}, Vt, St0) ->
gexpr({call,Line,{atom,Lr,is_record},[E,A]}, Vt, St0);
-guard_test2({call,_Line,{atom,_La,F},As}=G, Vt, St0) ->
+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 -> {Asvt,St1};
- _ -> gexpr(G, Vt, St0)
+ 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)};
+ true ->
+ {Asvt,St1}
+ end;
+ _ ->
+ gexpr(G, Vt, St0)
end;
guard_test2(G, Vt, St) ->
%% Everything else is a guard expression.
@@ -1865,9 +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)};
@@ -2767,12 +2780,6 @@ default_types() ->
{var, 1}],
dict:from_list([{T, -1} || T <- DefTypes]).
-%% R12B-5
-is_newly_introduced_builtin_type({module, 0}) -> true;
-is_newly_introduced_builtin_type({node, 0}) -> true;
-is_newly_introduced_builtin_type({nonempty_string, 0}) -> true;
-is_newly_introduced_builtin_type({term, 0}) -> true;
-is_newly_introduced_builtin_type({timeout, 0}) -> true;
%% R13
is_newly_introduced_builtin_type({arity, 0}) -> true;
is_newly_introduced_builtin_type({array, 0}) -> true; % opaque
@@ -3429,17 +3436,11 @@ obsolete_guard({call,Line,{atom,Lr,F},As}, St0) ->
false ->
deprecated_function(Line, erlang, F, As, St0);
true ->
- St1 = case F of
- constant ->
- deprecated_function(Lr, erlang, is_constant, As, St0);
- _ ->
- St0
- end,
- case is_warn_enabled(obsolete_guard, St1) of
+ case is_warn_enabled(obsolete_guard, St0) of
true ->
- add_warning(Lr,{obsolete_guard, {F, Arity}}, St1);
+ add_warning(Lr,{obsolete_guard, {F, Arity}}, St0);
false ->
- St1
+ St0
end
end;
obsolete_guard(_G, St) ->