Class: Proc

Inherits:
Object
  • Object
show all
Defined in:
lib/lab42/stream/proc.rb

Instance Method Summary collapse

Instance Method Details

#make_behavior(*args) ⇒ Object

TODO: Use this from core/fn as soon as available

Raises:

  • (ArgumentError) 


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# File 'lib/lab42/stream/proc.rb', line 16

def make_behavior *args
  raise ArgumentError, "cannot specify behavior with block and args: #{args.inspect}" unless args.compact.empty?
  self
end

#memoized ⇒ Object 



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# File 'lib/lab42/stream/proc.rb', line 2

def memoized
  already_run = false
  result      = nil
  ->{
    if already_run
      result
    else
      already_run = true
      result = call()
    end
  }
end

#not ⇒ Object 



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# File 'lib/lab42/stream/proc.rb', line 21

def not
  -> (*args, &blk) {
    ! self.(*args, &blk)
  }
end