Class: Sexp2Ruby::Node::Rescue

Inherits:
Base
  • Object
show all
Defined in:
lib/sexp2ruby/node/rescue.rb

Constant Summary

Constants inherited from Base

Base::ASSIGN_NODES, Base::LF, Base::LINE_LENGTH

Instance Attribute Summary

Attributes inherited from Base

#processor

Instance Method Summary collapse

Methods inherited from Base

#initialize

Constructor Details

This class inherits a constructor from Sexp2Ruby::Node::Base

Instance Method Details

#to_s(exp) ⇒ Object 



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# File 'lib/sexp2ruby/node/rescue.rb', line 4

def to_s(exp)
  body = process(exp.shift) unless exp.first.first == :resbody
  els  = process(exp.pop)   unless exp.last.first  == :resbody

  body ||= "# do nothing"
  simple = exp.size == 1 && exp.resbody.size <= 3 &&
    !exp.resbody.block &&
    !exp.resbody.return

  resbodies = []
  until exp.empty? do
    resbody = exp.shift
    simple &&= resbody[1] == s(:array)
    simple &&= resbody[2] != nil && resbody[2].node_type != :block
    resbodies << process(resbody)
  end

  if els
    "#{indent body}\n#{resbodies.join(LF)}\nelse\n#{indent els}"
  elsif simple
    resbody = resbodies.first.sub(/\n\s*/, ' ')
    "#{body} #{resbody}"
  else
    "#{indent body}\n#{resbodies.join(LF)}"
  end
end