[ruby/irb] Directly check if the method is available instead of version

ruby/irb@3ea9fd9ed0
ruby · Aug 18, 2020 · 0fcbd07 · 0fcbd07
1 parent 6aa786b
commit 0fcbd07
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/lib/irb/color.rb b/lib/irb/color.rb
@@ -146,10 +146,9 @@ def without_circular_ref(obj, seen:, &block)
         seen.delete(obj)
       end
 
-      # Ripper::Lexer::Elem#state is supported on Ruby 2.5+
       def supported?
         return @supported if defined?(@supported)
-        @supported = Gem::Version.new(RUBY_VERSION) >= Gem::Version.new('2.5.0')
+        @supported = Ripper::Lexer::Elem.method_defined?(:state)
       end
 
       def scan(code, allow_last_error:)