Class: Etheruby::ArgumentsGenerator

Inherits:
Object
  • Object
show all
Defined in:
lib/etheruby/arguments_generator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(params, args) ⇒ ArgumentsGenerator

Returns a new instance of ArgumentsGenerator.



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# File 'lib/etheruby/arguments_generator.rb', line 14

def initialize(params, args)
  @params = params
  @args = args
end

Instance Attribute Details

#args ⇒ Object (readonly)

Returns the value of attribute args.



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# File 'lib/etheruby/arguments_generator.rb', line 12

def args
  @args
end

#params ⇒ Object (readonly)

Returns the value of attribute params.



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# File 'lib/etheruby/arguments_generator.rb', line 12

def params
  @params
end

Instance Method Details

#to_s ⇒ Object

Raises:



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# File 'lib/etheruby/arguments_generator.rb', line 19

def to_s
  raise ArgumentsCountError.new("Bad number of arguments") unless args.count == params.count
  head = []
  tail = ''
  current_tail_position = 0
  (0..params.count-1).each do |i|
    param, arg = params[i], args[i]
    if Etheruby.is_static_type? param
      head << {final: Etheruby.treat_variable(param, arg, :encode).to_s}
    else
      head << {pointer: current_tail_position}
      content = Etheruby.treat_variable(param, arg, :encode).to_s
      current_tail_position += content.length/2
      tail += content
    end
  end
  head_size = head.map { |x|
    if x.has_key?(:pointer)
      32
    else
      x[:final].length/2
    end
  }.inject(0){|sum,x| sum + x }
  final_head = head.map { |x|
    if x.has_key?(:pointer)
      Etheruby::Encoders::Uint.new(head_size + x[:pointer]).encode
    else
      x[:final]
    end
  }.join
  return final_head + tail
end