Module: Degem::Scan

Defined in:
lib/degem/parse_ruby.rb

Instance Method Summary collapse

Instance Method Details

#scan(init = nil) ⇒ Object 



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# File 'lib/degem/parse_ruby.rb', line 102

def scan(init = nil)
  if init.nil?
    init = self[0]
    xs = self[1..] || []
  else
    xs = self
  end

  return self if xs.empty?

  xs.reduce([init]) do |acc, x|
    acc + [yield(acc.last, x)]
  end
end