aboutsummaryrefslogtreecommitdiffstats
path: root/lib/dialyzer/test/small_SUITE_data/src
diff options
context:
space:
mode:
authorStavros Aronis <[email protected]>2011-03-21 18:36:50 +0200
committerHenrik Nord <[email protected]>2011-05-04 15:06:16 +0200
commit500567d6e12d1827f31cd52b961ed7a7e9fb9fa7 (patch)
treecba1e701171bee8d8e902db4127177beca448127 /lib/dialyzer/test/small_SUITE_data/src
parent50184171c3b28270aae9f21926383185e9188234 (diff)
downloadotp-500567d6e12d1827f31cd52b961ed7a7e9fb9fa7.tar.gz
otp-500567d6e12d1827f31cd52b961ed7a7e9fb9fa7.tar.bz2
otp-500567d6e12d1827f31cd52b961ed7a7e9fb9fa7.zip
Add small/not_bogus_warning
Diffstat (limited to 'lib/dialyzer/test/small_SUITE_data/src')
-rw-r--r--lib/dialyzer/test/small_SUITE_data/src/not_bogus_warning.erl25
1 files changed, 25 insertions, 0 deletions
diff --git a/lib/dialyzer/test/small_SUITE_data/src/not_bogus_warning.erl b/lib/dialyzer/test/small_SUITE_data/src/not_bogus_warning.erl
new file mode 100644
index 0000000000..53f7e934e4
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/not_bogus_warning.erl
@@ -0,0 +1,25 @@
+%%-----------------------------------------------------------------------------
+%% Test which produces an erroneous warning:
+%% Guard test is_atom(A::'bar' | 'foo') can never succeed
+%% due to the handling of not which of course succeeds when its argument fails
+%%-----------------------------------------------------------------------------
+-module(not_bogus_warning).
+
+-export([t1/0, t2/0, t3/0, t4/0]).
+
+t1() ->
+ [A || A <- [foo, bar], not is_atom(A)].
+
+t2() ->
+ [A || A <- [foo, bar], not is_integer(A)].
+
+t3() ->
+ should_we_warn_here(42).
+
+should_we_warn_here(X) when is_integer(X) -> int.
+
+t4() ->
+ should_we_warn_or_not(42).
+
+should_we_warn_or_not(X) when not is_integer(X) -> not_int;
+should_we_warn_or_not(X) -> int.