diff options
Diffstat (limited to 'lib/compiler/test/fun_SUITE.erl')
| -rw-r--r-- | lib/compiler/test/fun_SUITE.erl | 42 |
1 files changed, 38 insertions, 4 deletions
diff --git a/lib/compiler/test/fun_SUITE.erl b/lib/compiler/test/fun_SUITE.erl index 16474adf5b..7fc6195e31 100644 --- a/lib/compiler/test/fun_SUITE.erl +++ b/lib/compiler/test/fun_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2000-2016. All Rights Reserved. +%% Copyright Ericsson AB 2000-2018. All Rights Reserved. %% %% Licensed under the Apache License, Version 2.0 (the "License"); %% you may not use this file except in compliance with the License. @@ -22,7 +22,8 @@ -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,badfun/1]). + external/1,eep37/1,eep37_dup/1,badarity/1,badfun/1, + duplicated_fun/1]). %% Internal exports. -export([call_me/1,dup1/0,dup2/0]). @@ -32,15 +33,15 @@ suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> - test_lib:recompile(?MODULE), [{group,p}]. groups() -> [{p,[parallel], [test1,overwritten_fun,otp_7202,bif_fun,external,eep37, - eep37_dup,badarity,badfun]}]. + eep37_dup,badarity,badfun,duplicated_fun]}]. init_per_suite(Config) -> + test_lib:recompile(?MODULE), Config. end_per_suite(_Config) -> @@ -194,6 +195,17 @@ external(Config) when is_list(Config) -> ?APPLY2(ListsMod, ListsMap, 2), ?APPLY2(ListsMod, ListsMap, ListsArity), + 42 = (fun erlang:abs/1)(-42), + 42 = (id(fun erlang:abs/1))(-42), + 42 = apply(fun erlang:abs/1, [-42]), + 42 = apply(id(fun erlang:abs/1), [-42]), + 6 = (fun lists:sum/1)([1,2,3]), + 6 = (id(fun lists:sum/1))([1,2,3]), + + {'EXIT',{{badarity,_},_}} = (catch (fun lists:sum/1)(1, 2, 3)), + {'EXIT',{{badarity,_},_}} = (catch (id(fun lists:sum/1))(1, 2, 3)), + {'EXIT',{{badarity,_},_}} = (catch apply(fun lists:sum/1, [1,2,3])), + ok. call_me(I) -> @@ -238,10 +250,32 @@ badfun(_Config) -> expect_badfun(X, catch X(put(?FUNCTION_NAME, of_course))), of_course = erase(?FUNCTION_NAME), + %% A literal as a Fun used to crash the code generator. This only happened + %% when type optimization had reduced `Fun` to a literal, hence the match. + Literal = fun(literal = Fun) -> + Fun() + end, + expect_badfun(literal, catch Literal(literal)), + ok. expect_badfun(Term, Exit) -> {'EXIT',{{badfun,Term},_}} = Exit. +duplicated_fun(_Config) -> + try + %% The following code used to crash the compiler before + %% v3_core:is_safe/1 was corrected to consider fun variables + %% unsafe. + id([print_result_paths_fun = fun duplicated_fun_helper/1]), + ct:error(should_fail) + catch + error:{badmatch,F} when is_function(F, 1) -> + ok + end. + +duplicated_fun_helper(_) -> + ok. + id(I) -> I. |