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author | Stavros Aronis <[email protected]> | 2010-06-18 03:44:25 +0300 |
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committer | Lukas Larsson <[email protected]> | 2011-02-18 12:03:18 +0100 |
commit | 98de31e836a04ccc8f5f9acd90b9ba0803a24ab5 (patch) | |
tree | 3f26237297b0b2d9040de1b97eeb7cd75bce2dfe /lib/dialyzer/test/small_tests_SUITE_data/src/or_bug.erl | |
parent | 08cec89bb1e781157a75c13e72562258b271b469 (diff) | |
download | otp-98de31e836a04ccc8f5f9acd90b9ba0803a24ab5.tar.gz otp-98de31e836a04ccc8f5f9acd90b9ba0803a24ab5.tar.bz2 otp-98de31e836a04ccc8f5f9acd90b9ba0803a24ab5.zip |
Test suites for Dialyzer
This is a transcription of most of the cvs.srv.it.uu.se:/hipe repository
dialyzer_tests into test suites that use the test server framework.
See README for information on how to use the included scripts for
modifications and updates.
When testing Dialyzer it's important that several OTP modules
are included in the plt. The suites takes care of that too.
Diffstat (limited to 'lib/dialyzer/test/small_tests_SUITE_data/src/or_bug.erl')
-rw-r--r-- | lib/dialyzer/test/small_tests_SUITE_data/src/or_bug.erl | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/lib/dialyzer/test/small_tests_SUITE_data/src/or_bug.erl b/lib/dialyzer/test/small_tests_SUITE_data/src/or_bug.erl new file mode 100644 index 0000000000..fb8f6558b8 --- /dev/null +++ b/lib/dialyzer/test/small_tests_SUITE_data/src/or_bug.erl @@ -0,0 +1,24 @@ +%%--------------------------------------------------------------------------- +%% From: Per Hedeland <[email protected]> +%% Date: 11 Feb 2010 +%% +%% The code below demonstrates a bug in dialyzer - it produces the warning: +%% Clause guard cannot succeed. +%% The variable Cs was matched against the type any() +%% for the first test/1 clause, but of course the claim can easily be easily +%% refuted by calling test(#cs{}). +%%--------------------------------------------------------------------------- + +-module(or_bug). + +-export([test/1]). + +-record(cs, {children = [], actions = []}). + +-define(is_internal(X), ((X#cs.children =/= []) or + (X#cs.actions =/= []))). +-define(has_children(X), (X#cs.children /= [])). + +test(Cs) when not ?is_internal(Cs) -> foo; +test(Cs) when not ?has_children(Cs) -> bar; +test(Cs) when Cs#cs.children =/= [] -> baz. |