Class: Enumerator::Lazy

Inherits:
Object
  • Object
show all
Defined in:
lib/twterm/extensions/enumerator/lazy.rb

Instance Method Summary collapse

Instance Method Details

#scan(initial, sym = nil) ⇒ Object 



3
4
5
6
7
8
9
10
 
# File 'lib/twterm/extensions/enumerator/lazy.rb', line 3

def scan(initial, sym = nil)
  acc = initial

  Enumerator::Lazy.new(self) do |y, x|
    acc = sym.nil? ? yield(acc, x) : sym.to_proc.call(acc, x)
    y << acc
  end
end