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| author | Vladimir Dementyev <dementiev.vm@gmail.com> | 2021-01-19 00:00:52 +0300 |
|---|---|---|
| committer | Nobuyoshi Nakada <nobu@ruby-lang.org> | 2021-01-19 08:34:01 +0900 |
| commit | 1b89b99941548fdb65305dd9a412082e7fdba45a (patch) | |
| tree | 4102d063972f25d65807a257efdad73c4a8fb7bc /test/ruby/test_pattern_matching.rb | |
| parent | 9d1475c621af671494769dde5a09db4c86071474 (diff) | |
| download | ruby-1b89b99941548fdb65305dd9a412082e7fdba45a.tar.gz | |
Mark pattern labels as unremoveable
Peephole optimization doesn't play well with find pattern at
least. The only case when a pattern matching could have
unreachable patterns is when we have lasgn/dasgn node, which
shouldn't happen in real-life.
Fixes https://bugs.ruby-lang.org/issues/17534
Diffstat (limited to 'test/ruby/test_pattern_matching.rb')
| -rw-r--r-- | test/ruby/test_pattern_matching.rb | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/test/ruby/test_pattern_matching.rb b/test/ruby/test_pattern_matching.rb index 243a4cd2bd..e4c7507ac4 100644 --- a/test/ruby/test_pattern_matching.rb +++ b/test/ruby/test_pattern_matching.rb @@ -791,6 +791,16 @@ END true end end + + # https://bugs.ruby-lang.org/issues/17534 + assert_block do + case [0, 1, 2] + in x + true + in [*, 2, *] + false + end + end end def test_hash_pattern |