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author | Micael Karlberg <[email protected]> | 2011-03-17 12:19:57 +0100 |
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committer | Micael Karlberg <[email protected]> | 2011-03-17 12:19:57 +0100 |
commit | 6b1d1ab0a27e9ed08a626e18319beb91d0a0d5ce (patch) | |
tree | 82e54daec07390bb4cad8b279e0e8d1fd0170b78 /lib/dialyzer/test/small_tests_SUITE_data/src/unused_cases.erl | |
parent | 4f42486c2f94860c1aa8152562760b6a2aa7c5cb (diff) | |
parent | f861b4fdb3fd39e35f2951c53a73b30a98c7f973 (diff) | |
download | otp-6b1d1ab0a27e9ed08a626e18319beb91d0a0d5ce.tar.gz otp-6b1d1ab0a27e9ed08a626e18319beb91d0a0d5ce.tar.bz2 otp-6b1d1ab0a27e9ed08a626e18319beb91d0a0d5ce.zip |
Merge branch 'dev' into bmk/inets/ftp/missing_spec_causes_dialyxer_problems/OTP-9114
Also fixed a bunch of "end-years" (was 2010 but should have been 2011,
which the commit hook not happy with).
Diffstat (limited to 'lib/dialyzer/test/small_tests_SUITE_data/src/unused_cases.erl')
-rw-r--r-- | lib/dialyzer/test/small_tests_SUITE_data/src/unused_cases.erl | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/lib/dialyzer/test/small_tests_SUITE_data/src/unused_cases.erl b/lib/dialyzer/test/small_tests_SUITE_data/src/unused_cases.erl new file mode 100644 index 0000000000..e6e6693963 --- /dev/null +++ b/lib/dialyzer/test/small_tests_SUITE_data/src/unused_cases.erl @@ -0,0 +1,41 @@ +%%------------------------------------------------------------------- +%% File : unused_cases.erl +%% Author : Kostis Sagonas <[email protected]> +%% Description : Tests that Dialyzer warns whenever it finds unused +%% case clauses -- even those that are catch all. +%% +%% Created : 21 Jan 2007 by Kostis Sagonas <[email protected]> +%%------------------------------------------------------------------- + +-module(unused_cases). +-export([test/0]). + +test() -> % dummy function to avoid exporting stuff + ok = unreachable_catchall(42), + ok = unreachable_middle(42), + ok = unreachable_final(42). + +unreachable_catchall(X) -> + case mk_pair(X) of + {_,_} -> ok; + OTHER -> {unreachable_catchall, OTHER} + end. + +unreachable_middle(X) -> + case is_positive(X) of + true -> ok; + weird -> {unreachable_middle, weird}; + false -> ok + end. + +unreachable_final(X) -> + case is_positive(X) of + true -> ok; + false -> ok; + OTHER-> {unreachable_final, OTHER} + end. + +mk_pair(X) -> {X, X}. + +is_positive(X) when is_integer(X), X > 0 -> true; +is_positive(X) when is_integer(X) -> false. |