* lib/irb/extend-command.rb (IRB::ExtendCommandBundle::def_extend_command):

  extension commands with optional parameters have been broken because of
  a spec change of UnboundMethod#arity.

git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_9_1@26021 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 13 insertions, 3 deletions

diff --git a/ChangeLog b/ChangeLog
index 55359f7aa..de812d360 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Sat Dec  5 14:29:49 2009  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
+
+	* lib/irb/extend-command.rb (IRB::ExtendCommandBundle::def_extend_command):
+	  extension commands with optional parameters have been broken because of 
+	  a spec change of UnboundMethod#arity.
+
 Sat Dec  5 14:24:10 2009  Yuki Sonoda (Yugui)  <yugui@yugui.jp>
 
 	* lib/irb/extend-command.rb (IRB::ExtendCommandBundle::def_extend_command):
diff --git a/lib/irb/extend-command.rb b/lib/irb/extend-command.rb
index 84c4c05e1..862857466 100644
--- a/lib/irb/extend-command.rb
+++ b/lib/irb/extend-command.rb
@@ -126,8 +126,12 @@ module IRB
 	  def #{cmd_name}(*opts, &b)
 	    require "#{load_file}"
 	    arity = ExtendCommand::#{cmd_class}.instance_method(:execute).arity
-	    args = (1..arity).map {|i| "arg" + i.to_s }
-	    args << "*opts" if arity < 0
+            args = []
+	    if arity < 0
+	      args << "*opts"
+	      arity = -arity - 1
+	    end
+	    args.unshift *(1..arity).map {|i| "arg" + i.to_s }
 	    args << "&block"
 	    args = args.join(", ")
 	    eval <<-"EOS2", binding, __FILE__, __LINE__+1
diff --git a/version.h b/version.h
index 8923a4a23..22b9c47c2 100644
--- a/version.h
+++ b/version.h
@@ -1,5 +1,5 @@
 #define RUBY_VERSION "1.9.1"
-#define RUBY_PATCHLEVEL 374
+#define RUBY_PATCHLEVEL 375
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 9
 #define RUBY_VERSION_TEENY 1