nobu	2017-01-06 12:11:45 +0900 (Fri, 06 Jan 2017)

  New Revision: 57274

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=57274

  Log:
    prelude.rb: Binding#irb [ci skip]
    
    * prelude.rb (Binding#irb): [EXPERIMENTAL] automatically require
      irb and run.  [ruby-core:78960] [Bug #13099]

  Modified files:
    trunk/lib/irb.rb
    trunk/prelude.rb
Index: prelude.rb
===================================================================
--- prelude.rb	(revision 57273)
+++ prelude.rb	(revision 57274)
@@ -133,3 +133,10 @@ class IO https://github.com/ruby/ruby/blob/trunk/prelude.rb#L133
     __write_nonblock(buf, exception)
   end
 end
+
+class Binding
+  def irb
+    require 'irb'
+    irb
+  end
+end
Index: lib/irb.rb
===================================================================
--- lib/irb.rb	(revision 57273)
+++ lib/irb.rb	(revision 57274)
@@ -708,6 +708,7 @@ end https://github.com/ruby/ruby/blob/trunk/lib/irb.rb#L708
 
 class Binding
   # :nodoc:
+  undef irb if method_defined?(:irb)
   def irb
     IRB.setup(eval("__FILE__"))
     IRB::Irb.new(IRB::WorkSpace.new(self)).run(IRB.conf)

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