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Diffstat (limited to 'spec/ruby/language/regexp/back-references_spec.rb')
-rw-r--r-- | spec/ruby/language/regexp/back-references_spec.rb | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/spec/ruby/language/regexp/back-references_spec.rb b/spec/ruby/language/regexp/back-references_spec.rb index 26750c20c5..627c8daace 100644 --- a/spec/ruby/language/regexp/back-references_spec.rb +++ b/spec/ruby/language/regexp/back-references_spec.rb @@ -22,6 +22,15 @@ describe "Regexps with back-references" do $10.should == "0" end + it "returns nil for numbered variable with too large index" do + -> { + eval(<<~CODE).should == nil + "a" =~ /(.)/ + eval('$4294967296') + CODE + }.should complain(/warning: ('|`)\$4294967296' is too big for a number variable, always nil/) + end + it "will not clobber capture variables across threads" do cap1, cap2, cap3 = nil "foo" =~ /(o+)/ |