Class: BinData::BaseArgExtractor

Inherits:
Object
  • Object
show all
Defined in:
lib/bindata/base.rb

Overview

ArgExtractors take the arguments passed to BinData::Base.new and separate them into [value, parameters, parent].

Constant Summary collapse

@@empty_hash = 
Hash.new.freeze

Class Method Summary collapse

Class Method Details

.extract(the_class, the_args) ⇒ Object 



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# File 'lib/bindata/base.rb', line 16

def self.extract(the_class, the_args)
  args = the_args.dup
  value = parameters = parent = nil

  if args.length > 1 and args.last.is_a? BinData::Base
    parent = args.pop
  end

  if args.length > 0 and args.last.is_a? Hash
    parameters = args.pop
  end

  if args.length > 0
    value = args.pop
  end

  parameters ||= @@empty_hash

  return [value, parameters, parent]
end