Support Ruby 3.3 parse.y profiles

lib/arpaka/generator.rb

@@ -34,7 +34,7 @@ def generate(ruby_source: nil, parse_y: nil, class_name:)
       end
       source = "# frozen_string_literal: true\n" \
         "# Generated by Arpaka #{Lrama::Ruby::VERSION}. Do not edit.\n" \
-        "# Ruby source profile: #{ruby_source ? RubyGrammar::REVISION : 'parse.y only'}\n" \
+        "# Ruby source profile: #{ruby_source ? artifacts.fetch('source_profile') : 'parse.y only'}\n" \
         "# parse.y SHA256: #{Digest::SHA256.file(grammar_filename).hexdigest}\n" \
         "#{notices.join("\n").lines.map { |line| "# #{line}" }.join}\n" \
         "class #{class_name}\n#{parser}\n#{runtime}\nend\n"

lib/arpaka/profile/ruby.rb

@@ -15,24 +15,34 @@ module RUBY
       def self.select(grammar)
         if grammar.rules.any? { |rule| rule.lhs.id.s_value == "value_expr_command" }
           CURRENT
-        elsif grammar.rules.any? { |rule| rule.lhs.id.s_value == "top_compstmt" }
+        elsif grammar.rules.any? { |rule| rule.lhs.id.s_value == "top_compstmt" &&
+          rule.rhs.any? { |symbol| symbol.id.s_value == "option_terms" } }
           legacy
+        elsif grammar.rules.any? { |rule| rule.lhs.id.s_value == "top_compstmt" &&
+          rule.rhs.any? { |symbol| symbol.id.s_value == "opt_terms" } }
+          legacy_3_3
         else
           raise ::Arpaka::Error, "Unsupported Ruby parse.y profile"
         end
       end
 
       def self.legacy
-        @legacy ||= begin
-          box = ::Ruby::Box.new
-          profile = box.eval(File.read(File.join(__dir__, "ruby_3_4.rb")))
-          unless profile.is_a?(Hash) && profile["name"] == "ruby-3.4"
-            raise ::Arpaka::Error, "Invalid Ruby 3.4 profile"
-          end
-          profile.freeze
-        rescue SyntaxError, TypeError => error
-          raise ::Arpaka::Error, "Ruby legacy profile loading failed: #{error.message}"
+        @legacy ||= load("ruby_3_4.rb", "ruby-3.4")
+      end
+
+      def self.legacy_3_3
+        @legacy_3_3 ||= load("ruby_3_3.rb", "ruby-3.3")
+      end
+
+      def self.load(filename, name)
+        box = ::Ruby::Box.new
+        profile = box.eval(File.read(File.join(__dir__, filename)))
+        unless profile.is_a?(Hash) && profile["name"] == name
+          raise ::Arpaka::Error, "Invalid #{name} profile"
         end
+        profile.freeze
+      rescue SyntaxError, TypeError => error
+        raise ::Arpaka::Error, "Ruby profile loading failed: #{error.message}"
       end
     end
   end