ensure.ast

RootNode line: 0
  DefnNode*:initialize line: 0
    ArgsNode line: 1
      ListNode line: 1
      ListNode line: 1
      ListNode line: 1
      ListNode line: 1
    EnsureNode line: 1
      SuperNode* line: 1
        ArrayNode line: 1
          VCallNode*:a line: 1
      CallNode*:close line: 3
        VCallNode*:a line: 3
, null, null

ensure.ir

:Instructions
2020-11-18T13:44:33.215-06:00 [main] INFO BasicCompilerPassListener : Finished Add Missing Initialization on scope in 0ms.
2020-11-18T13:44:33.232-06:00 [main] INFO IRScope : :0 initialize
  0	[DEAD]%self = recv_self()
  1	%v_0 = load_implicit_closure()
  2	%current_module = copy(module<0>)
  3	check_arity(;req: 0, opt: 0, *r: false, kw: false)
  4	%v_2 = get_global_var($!)
  5	label(LBL_0:6)
  6	exc_region_start(LBL_3:20)
  7	line_num(;n: 1)
  8	%v_6 = call_0o(%self ;n:a, t:VA, cl:false)
  9	%v_7 = unresolved_super(%self, %v_6, %v_0 ;n:-dynamic-super_target-, t:SU, cl:true)
  10	exc_region_end()
  11	%v_5 = copy(%v_7)
  12	label(LBL_4:13)
  13	exc_region_start(UNRESCUED_REGION_0:-1)
  14	line_num(;n: 3)
  15	%v_3 = call_0o(%self ;n:a, t:VA, cl:false)
  16	%v_4 = call_0o(%v_3 ;n:close, t:NO, cl:false)
  17	exc_region_end()
  18	jump(LBL_2:27)
  19	label(LBL_3:20)
  20	%v_8 = recv_jruby_exc()
  21	label(LBL_1:22)
  22	line_num(;n: 3)
  23	%v_3 = call_0o(%self ;n:a, t:VA, cl:false)
  24	%v_4 = call_0o(%v_3 ;n:close, t:NO, cl:false)
  25	throw(%v_8)
  26	label(LBL_2:27)
  27	return(%v_5)

ensure.rb

def initialize
  super(a)
ensure
  a.close
end