tadf	2008-01-19 18:42:44 +0900 (Sat, 19 Jan 2008)

  New Revision: 15126

  Modified files:
    trunk/ChangeLog
    trunk/lib/date.rb

  Log:
    * lib/date.rb (once): use an instance variable which points a hash
      as cache. [experimental]


  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/lib/date.rb?r1=15126&r2=15125&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=15126&r2=15125&diff_format=u

Index: ChangeLog
===================================================================
--- ChangeLog	(revision 15125)
+++ ChangeLog	(revision 15126)
@@ -1,3 +1,8 @@
+Sat Jan 19 18:40:19 2008  Tadayoshi Funaba  <tadf@d...>
+
+	* lib/date.rb (once): use an instance variable which points a hash
+	  as cache. [experimental]
+
 Sat Jan 19 17:21:29 2008  Tadayoshi Funaba  <tadf@d...>
 
 	* lib/date.rb, lib/date/format.rb: parse's hints as an
Index: lib/date.rb
===================================================================
--- lib/date.rb	(revision 15125)
+++ lib/date.rb	(revision 15126)
@@ -1101,13 +1101,13 @@
 
   class << self
 
-    def once(*ids) # :nodoc:
+    def once(*ids) # :nodoc: -- restricted
       for id in ids
 	module_eval <<-"end;"
 	  alias_method :__#{id.to_i}__, :#{id.to_s}
 	  private :__#{id.to_i}__
-	  def #{id.to_s}(*args, &block)
-	    (@__#{id.to_i}__ ||= [__#{id.to_i}__(*args, &block)])[0]
+	  def #{id.to_s}(*args)
+	    @__ca__[#{id.to_i}] ||= __#{id.to_i}__(*args)
 	  end
 	end;
       end
@@ -1136,7 +1136,10 @@
   #
   # Using one of the factory methods such as Date::civil is
   # generally easier and safer.
-  def initialize(ajd=0, of=0, sg=ITALY) @ajd, @of, @sg = ajd, of, sg end
+  def initialize(ajd=0, of=0, sg=ITALY)
+    @ajd, @of, @sg = ajd, of, sg
+    @__ca__ = {}
+  end
 
   # Get the date as an Astronomical Julian Day Number.
   def ajd() @ajd end

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