Class: Gilmour::Composers::AndAnd

Inherits:
Pipeline
  • Object
show all
Defined in:
lib/gilmour/composers.rb

Instance Attribute Summary

Attributes inherited from Pipeline

#pipeline

Instance Method Summary collapse

Methods inherited from Pipeline

#continuation, #initialize

Constructor Details

This class inherits a constructor from Gilmour::Composers::Pipeline

Instance Method Details

#execute(data = {}, &blk) ⇒ Object

Execute the andand pipeline. The output of the last successful step is passed to block, along with the remaining continuation See the documentation of the #andand method for more details



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# File 'lib/gilmour/composers.rb', line 129

def execute(data={}, &blk)
  blk.call(nil, nil) if pipeline.empty?
  handler = proc do |queue, data, code|
    if queue.empty? || code != 200
      blk.call(data, code, continuation(queue))
    else
      head = queue.first
      tail = queue[1..-1]
      head.execute(&handler.curry[tail])
    end
  end
  handler.call(pipeline, nil, 200)
end