diff options
| -rw-r--r-- | lib/compiler/src/sys_core_fold.erl | 17 | ||||
| -rw-r--r-- | lib/compiler/test/fun_SUITE.erl | 30 |
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. |