diff options
Diffstat (limited to 'lib/dialyzer/test/small_SUITE_data/src/inf_loop2.erl')
| -rw-r--r-- | lib/dialyzer/test/small_SUITE_data/src/inf_loop2.erl | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/dialyzer/test/small_SUITE_data/src/inf_loop2.erl b/lib/dialyzer/test/small_SUITE_data/src/inf_loop2.erl new file mode 100644 index 0000000000..6ac29116a5 --- /dev/null +++ b/lib/dialyzer/test/small_SUITE_data/src/inf_loop2.erl @@ -0,0 +1,23 @@ +%%--------------------------------------------------------------------- +%% Module that went into an infinite loop when trying to assign types. +%% +%% What was happening is that for functions which are in an SCC but all +%% return none(), a second chance was given to them by the analysis to +%% see whether they return none() because they are involved in an loop +%% (presumably server-related) and could be assigned the type unit() +%% instead. The problem is that when the really return none() for some +%% other reason (an error such in this case) then we will again find +%% none() and try again for unit(), thereby entering an infinite loop. +%% The issue was resolved on May 17th by adding an appropriate boolean +%% parameter to dialyzer_typesig:solve_scc() function. +%%--------------------------------------------------------------------- +-module(inf_loop2). + +-export([test/0]). + +test() -> + lists:reverse(gazonk), + loop(). + +loop() -> + test(). |