Method: Opal::Rewriters::ReturnableLogic#on_or

Defined in:
lib/opal/rewriters/returnable_logic.rb

#on_or(node) ⇒ Object

a || b / a or b



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# File 'lib/opal/rewriters/returnable_logic.rb', line 44

def on_or(node)
  lhs, rhs = *node.children

  check_control_flow!(lhs)

  if node.meta[:if_test]
    # Let's forward the if_test to the lhs and rhs - since we don't care about the exact return
    # value of our or, we neither do care about a return value of our lhs or rhs.
    lhs.meta[:if_test] = rhs.meta[:if_test] = true
    out = process(node.updated(:if, [lhs, s(:true), rhs]))
  else
    lhs_tmp = next_tmp
    out = process(node.updated(:if, [s(:lvasgn, lhs_tmp, lhs), s(:js_tmp, lhs_tmp), rhs]))
    free_tmp
  end
  out
end