akr	2010-03-21 17:15:16 +0900 (Sun, 21 Mar 2010)

  New Revision: 26996

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=26996

  Log:
    * tool/transcode-tblgen.rb: reuse hash object.

  Modified files:
    trunk/ChangeLog
    trunk/tool/transcode-tblgen.rb

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 26995)
+++ ChangeLog	(revision 26996)
@@ -1,3 +1,7 @@
+Sun Mar 21 17:14:49 2010  Tanaka Akira  <akr@f...>
+
+	* tool/transcode-tblgen.rb: reuse hash object.
+
 Sun Mar 21 12:32:39 2010  Tanaka Akira  <akr@f...>
 
 	* tool/transcode-tblgen.rb (transcode_compile_tree): make
Index: tool/transcode-tblgen.rb
===================================================================
--- tool/transcode-tblgen.rb	(revision 26995)
+++ tool/transcode-tblgen.rb	(revision 26996)
@@ -285,10 +285,11 @@
     ret
   end
 
+  TMPHASH = {}
   def self.expand_rec(prefix, region_rects, &block)
     return region_rects if region_rects.empty? && !((s_rect = @singleton_rects.last) && s_rect[0].start_with?(prefix))
     if region_rects.empty? ? s_rect[0].length == prefix.length : region_rects[0][0].empty?
-      h = {}
+      h = TMPHASH
       while (s_rect = @singleton_rects.last) && s_rect[0].start_with?(prefix)
         min, max, action = @singleton_rects.pop
         raise ArgumentError, "ambiguous pattern: #{prefix}" if min.length != prefix.length
@@ -316,7 +317,7 @@
   end
 
   def self.each_firstbyte_range(prefix, region_rects)
-    index_from = {}
+    index_from = TMPHASH
 
     region_ary = []
     region_rects.each {|min, max, action|

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