i = 0
while i < 5
  i += 1
  redo if i == 3
  p(i)
end

# NodeDump V0.1.7
# 
# NODE_BLOCK: 
#   NODE_NEWLINE:  [redo.rb:2]
#     NODE_LASGN: 
#       NODE_LIT:  Fixnum: 0
#       Assign to LV 2 (i)
#   NODE_NEWLINE:  [redo.rb:3]
#     NODE_WHILE: 
#       Condition:
#         NODE_CALL:  to method: 60 (<)
#         Receiver:
#           NODE_LVAR:  LV 2 (i)
#           Parameters:
#             NODE_ARRAY:  size = 1
#               NODE_LIT:  Fixnum: 5
#       Body:
#         NODE_BLOCK: 
#           NODE_NEWLINE:  [redo.rb:4]
#             NODE_LASGN: 
#               NODE_CALL:  to method: 43 (+)
#               Receiver:
#                 NODE_LVAR:  LV 2 (i)
#                 Parameters:
#                   NODE_ARRAY:  size = 1
#                     NODE_LIT:  Fixnum: 1
#               Assign to LV 2 (i)
#           NODE_NEWLINE:  [redo.rb:5]
#             NODE_IF: 
#               NODE_CALL:  to method: 326 (==)
#               Receiver:
#                 NODE_LVAR:  LV 2 (i)
#                 Parameters:
#                   NODE_ARRAY:  size = 1
#                     NODE_LIT:  Fixnum: 3
#             then:
#               NODE_REDO: 
#             else:
#           NODE_NEWLINE:  [redo.rb:6]
#             NODE_FCALL:  to function: 6753 (p)
#               Parameters:
#                 NODE_ARRAY:  size = 1
#                   NODE_LVAR:  LV 2 (i)