class Etherlite::Contract::Function

Attributes

inputs[R]
name[R]
outputs[R]

Public Class Methods

new(_name, _inputs, _outputs, _payable, _constant) click to toggle source
# File lib/etherlite/contract/function.rb, line 5
def initialize(_name, _inputs, _outputs, _payable, _constant)
  @name = _name
  @inputs = _inputs
  @outputs = _outputs

  @payable = _payable
  @constant = _constant
end

Public Instance Methods

constant?() click to toggle source
# File lib/etherlite/contract/function.rb, line 14
def constant?
  @constant
end
decode(_connection, _data) click to toggle source
# File lib/etherlite/contract/function.rb, line 44
def decode(_connection, _data)
  return nil if @outputs.empty?

  result = Etherlite::Support::Array.decode(_connection, @outputs, _data[2..-1])
  result.length > 1 ? result : result[0]
end
encode(_values) click to toggle source
# File lib/etherlite/contract/function.rb, line 29
def encode(_values)
  if _values.length != @inputs.count
    raise ArgumentError, "Expected #{@inputs.count} arguments, got #{_values.length} "
  end

  encoded_inputs = Etherlite::Support::Array.encode(@inputs.map(&:type), _values)

  if @name
    signature_hash = Etherlite::Utils.sha3 signature
    '0x' + signature_hash[0..7] + encoded_inputs
  else
    encoded_inputs # if no name is provided, just render arguments
  end
end
payable?() click to toggle source
# File lib/etherlite/contract/function.rb, line 18
def payable?
  @payable
end
signature() click to toggle source
# File lib/etherlite/contract/function.rb, line 22
def signature
  @signature ||= begin
    arg_signatures = @inputs.map &:signature
    "#{@name}(#{arg_signatures.join(',')})"
  end
end