gistfile1.txt

[subbu@earth jruby] java -cp lib/jruby.jar org.jruby.compiler.ir.IR_Builder -e "def foo(a); (1..10).collect { |i| i + a }; end;"
Script: 
  file: "-e"
  class:
Class: 
  className: _DUMMY_
  instrs:
  0		DEF_CLASS_METH(_DUMMY_, __file__)
  1		DEF_INST_METH(_DUMMY_, foo)

  methods:
[Method: 
  name: __file__, Method: 
  name: foo
  instrs:
  0		self = RECV_ARG(0)
  1		a = RECV_ARG(1)
  2		%v_0 = COPY(Closure: {
  instrs:
  0				i = RECV_BLOCK_ARG(0)
  1				%v_0 = CALL(+, [i, a])
  2				CLOSURE_RETURN(%v_0)
})
  3		%v_1 = CALL(collect, [(1:fixnum..10:fixnum):Range]), closure: %v_0
  4		RETURN(%v_1)
]