Proc.new don't support blank block

[GoogleCodeExporter]

code:
def procFrom  
  Proc.new  
end  
aProc = procFrom { "hello" }  
aProc.call  

throw the exception:
Exception in thread "main" java.lang.NullPointerException
        at
com.xruby.runtime.value.RubyProc.isDefinedInAnotherBlock(RubyProc.jav
a:30)
        at t.main.run(t.rb)
        at com.xruby.runtime.lang.RubyProgram.invoke(RubyProgram.java:19)
        at com.xruby.runtime.lang.RubyProgram.invoke(RubyProgram.java:14)
        at com.xruby.Main.run(Main.java:120)
        at com.xruby.Main.main(Main.java:67)

Original issue reported on code.google.com by zhangyu8...@gmail.com on 28 Apr 2007 at 1:39