Bug 206233

Using Ruby 2.7 the following will be printed out: /home/aperez/WebKit/Source/JavaScriptCore/offlineasm/parser.rb:631: warning: deprecated Object#=~ is called on Annotation; it always returns nil This is caused by the following change in Ruby: https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?revision=65989&view=revision I see that the Annotation class does *not* define an overload for the =~ operator, so previously applying it to an Annotation instance was already returning “nil” (but silently). Therefore I *think* that swapping the checks in the code to something like if @tokens[@idx].is_a? Annotation # ... elsif (@idx == @tokens.length and not final) or (final and @tokens[@idx] =~ final) # ... should both silence the warning and still be correct. Note that I do not have much experience with Ruby, nor with modifying offlineasm, so suggestions are definitely welcome.