! Added tentative ruby 2.4 support. Probably missing things.

[git-p4: depot-paths = "//src/ruby_parser/dev/": change = 11270]

Manifest.txt

@@ -21,6 +21,8 @@ lib/ruby22_parser.rb
 lib/ruby22_parser.y
 lib/ruby23_parser.rb
 lib/ruby23_parser.y
+lib/ruby24_parser.rb
+lib/ruby24_parser.y
 lib/ruby_lexer.rb
 lib/ruby_lexer.rex
 lib/ruby_lexer.rex.rb

Rakefile

@@ -15,7 +15,7 @@ Hoe.add_include_dirs "../../minitest/dev/lib"
 Hoe.add_include_dirs "../../oedipus_lex/dev/lib"
 
 V1   = %w[18 19]
-V2   = %w[20 21 22 23]
+V2   = %w[20 21 22 23 24]
 V1_2 = V1 + V2
 
 Hoe.spec "ruby_parser" do

lib/ruby_parser.rb

@@ -71,10 +71,12 @@ def self.for_current_ruby
 require "ruby21_parser"
 require "ruby22_parser"
 require "ruby23_parser"
+require "ruby24_parser"
 
 class RubyParser # HACK
   VERSIONS.clear # also a HACK caused by racc namespace issues
 
+  class V24 < ::Ruby24Parser; end
   class V23 < ::Ruby23Parser; end
   class V22 < ::Ruby22Parser; end
   class V21 < ::Ruby21Parser; end

lib/ruby_parser.yy

@@ -8,6 +8,8 @@ class Ruby21Parser
 class Ruby22Parser
 #elif V == 23
 class Ruby23Parser
+#elif V == 24
+class Ruby24Parser
 #else
 fail "version not specified or supported on code generation"
 #endif

test/test_ruby_parser.rb

@@ -3385,6 +3385,10 @@ def test_slashy_newlines_within_string
   end
 end
 
+module TestRubyParserShared24Plus
+  # ...version specific tests to go here...
+end
+
 class TestRubyParser < Minitest::Test
   def test_cls_version
     assert_equal 18, RubyParser::V18.version
@@ -3653,6 +3657,22 @@ def setup
   end
 end
 
+class TestRubyParserV24 < RubyParserTestCase
+  include TestRubyParserShared
+  include TestRubyParserShared19Plus
+  include TestRubyParserShared20Plus
+  include TestRubyParserShared21Plus
+  include TestRubyParserShared22Plus
+  include TestRubyParserShared23Plus
+  include TestRubyParserShared24Plus
+
+  def setup
+    super
+
+    self.processor = RubyParser::V24.new
+  end
+end
+
 RubyParser::VERSIONS.each do |klass|
   v = klass.version
   describe "block args arity #{v}" do