aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--lib/compiler/src/sys_core_fold.erl17
-rw-r--r--lib/compiler/test/fun_SUITE.erl30
2 files changed, 41 insertions, 6 deletions
diff --git a/lib/compiler/src/sys_core_fold.erl b/lib/compiler/src/sys_core_fold.erl
index b5b8d8a8ec..dbc27db377 100644
--- a/lib/compiler/src/sys_core_fold.erl
+++ b/lib/compiler/src/sys_core_fold.erl
@@ -374,10 +374,21 @@ expr(#c_receive{clauses=Cs0,timeout=T0,action=A0}=Recv, Ctxt, Sub) ->
T1 = expr(T0, value, Sub),
A1 = body(A0, Ctxt, Sub),
Recv#c_receive{clauses=Cs1,timeout=T1,action=A1};
-expr(#c_apply{op=Op0,args=As0}=App, _, Sub) ->
+expr(#c_apply{anno=Anno,op=Op0,args=As0}=App, _, Sub) ->
Op1 = expr(Op0, value, Sub),
As1 = expr_list(As0, value, Sub),
- App#c_apply{op=Op1,args=As1};
+ case Op1 of
+ #c_var{} ->
+ App#c_apply{op=Op1,args=As1};
+ _ ->
+ add_warning(App, invalid_call),
+ Err = #c_call{anno=Anno,
+ module=#c_literal{val=erlang},
+ name=#c_literal{val=error},
+ args=[#c_tuple{es=[#c_literal{val='badfun'},
+ Op1]}]},
+ make_effect_seq(As1++[Err], Sub)
+ end;
expr(#c_call{module=M0,name=N0}=Call0, Ctxt, Sub) ->
M1 = expr(M0, value, Sub),
N1 = expr(N0, value, Sub),
@@ -3395,6 +3406,8 @@ format_error({no_effect,{erlang,F,A}}) ->
format_error(result_ignored) ->
"the result of the expression is ignored "
"(suppress the warning by assigning the expression to the _ variable)";
+format_error(invalid_call) ->
+ "invalid function call";
format_error(useless_building) ->
"a term is constructed, but never used";
format_error(bin_opt_alias) ->
diff --git a/lib/compiler/test/fun_SUITE.erl b/lib/compiler/test/fun_SUITE.erl
index 17ff8601d9..16474adf5b 100644
--- a/lib/compiler/test/fun_SUITE.erl
+++ b/lib/compiler/test/fun_SUITE.erl
@@ -22,7 +22,7 @@
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2,
test1/1,overwritten_fun/1,otp_7202/1,bif_fun/1,
- external/1,eep37/1,eep37_dup/1,badarity/1]).
+ external/1,eep37/1,eep37_dup/1,badarity/1,badfun/1]).
%% Internal exports.
-export([call_me/1,dup1/0,dup2/0]).
@@ -33,10 +33,12 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
test_lib:recompile(?MODULE),
- [test1,overwritten_fun,otp_7202,bif_fun,external,eep37,eep37_dup,badarity].
+ [{group,p}].
-groups() ->
- [].
+groups() ->
+ [{p,[parallel],
+ [test1,overwritten_fun,otp_7202,bif_fun,external,eep37,
+ eep37_dup,badarity,badfun]}].
init_per_suite(Config) ->
Config.
@@ -221,5 +223,25 @@ badarity(Config) when is_list(Config) ->
{'EXIT',{{badarity,{_,[]}},_}} = (catch (fun badarity/1)()),
ok.
+badfun(_Config) ->
+ X = not_a_fun,
+ expect_badfun(42, catch 42()),
+ expect_badfun(42.0, catch 42.0(1)),
+ expect_badfun(X, catch X()),
+ expect_badfun(X, catch X(1)),
+ Len = length(atom_to_list(X)),
+ expect_badfun(Len, catch begin length(atom_to_list(X)) end(1)),
+
+ expect_badfun(42, catch 42(put(?FUNCTION_NAME, yes))),
+ yes = erase(?FUNCTION_NAME),
+
+ expect_badfun(X, catch X(put(?FUNCTION_NAME, of_course))),
+ of_course = erase(?FUNCTION_NAME),
+
+ ok.
+
+expect_badfun(Term, Exit) ->
+ {'EXIT',{{badfun,Term},_}} = Exit.
+
id(I) ->
I.