diff options
Diffstat (limited to 'lib/compiler/test/receive_SUITE.erl')
| -rw-r--r-- | lib/compiler/test/receive_SUITE.erl | 81 |
1 files changed, 77 insertions, 4 deletions
diff --git a/lib/compiler/test/receive_SUITE.erl b/lib/compiler/test/receive_SUITE.erl index 5e386790c0..4219768d6f 100644 --- a/lib/compiler/test/receive_SUITE.erl +++ b/lib/compiler/test/receive_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2004-2016. All Rights Reserved. +%% Copyright Ericsson AB 2004-2018. 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. @@ -25,7 +25,7 @@ init_per_group/2,end_per_group/2, init_per_testcase/2,end_per_testcase/2, export/1,recv/1,coverage/1,otp_7980/1,ref_opt/1, - wait/1]). + wait/1,recv_in_try/1,double_recv/1]). -include_lib("common_test/include/ct.hrl"). @@ -40,15 +40,16 @@ suite() -> {timetrap,{minutes,2}}]. all() -> - test_lib:recompile(?MODULE), [{group,p}]. groups() -> [{p,test_lib:parallel(), - [recv,coverage,otp_7980,ref_opt,export,wait]}]. + [recv,coverage,otp_7980,ref_opt,export,wait, + recv_in_try,double_recv]}]. init_per_suite(Config) -> + test_lib:recompile(?MODULE), Config. end_per_suite(_Config) -> @@ -305,4 +306,76 @@ wait_1(r, _, _) -> wait_1(A, B, C) -> {A,B,C}. +recv_in_try(_Config) -> + self() ! {ok,fh}, {ok,fh} = recv_in_try(infinity, native), + self() ! {ok,ignored}, {ok,42} = recv_in_try(infinity, plain), + self() ! {error,ignored}, nok = recv_in_try(infinity, plain), + timeout = recv_in_try(1, plain), + ok. + +recv_in_try(Timeout, Format) -> + try + receive + {Status,History} -> + %% {test,is_tuple,{f,148},[{x,0}]}. + %% {test,test_arity,{f,148},[{x,0},2]}. + %% {get_tuple_element,{x,0},0,{y,1}}. %y1 is fragile. + %% + %% %% Here the fragility of y1 would be be progated to + %% %% the 'catch' below. Incorrect, since get_tuple_element + %% %% can't fail. + %% {get_tuple_element,{x,0},1,{x,2}}. + %% + %% remove_message. %y1 fragility cleared. + FH = case Format of + native -> + id(History); + plain -> + id(42) + end, + case Status of + ok -> + {ok,FH}; + error -> + nok + end + after Timeout -> + timeout + end + catch + %% The fragility of y1 incorrectly propagated to here. + %% beam_validator would complain. + throw:{error,Reason} -> + {nok,Reason} + end. + +%% ERL-703. The compiler would crash because beam_utils:anno_defs/1 +%% failed to take into account that code after loop_rec_end is +%% unreachable. + +double_recv(_Config) -> + self() ! {more,{a,term}}, + ok = do_double_recv({more,{a,term}}, any), + self() ! message, + ok = do_double_recv(whatever, message), + + error = do_double_recv({more,42}, whatever), + error = do_double_recv(whatever, whatever), + ok. + +do_double_recv({more, Rest}, _Msg) -> + receive + {more, Rest} -> + ok + after 0 -> + error + end; +do_double_recv(_, Msg) -> + receive + Msg -> + ok + after 0 -> + error + end. + id(I) -> I. |