class EthereumContractABI::Util

Public Class Methods

fromHexByteString(str, with_prefix: true) click to toggle source
# File lib/ethereum-contract-abi/util.rb, line 11
def self.fromHexByteString(str, with_prefix: true)
  prefix = with_prefix ? "0x" : ""
  prefix + str.unpack("H*").first
end
keccak_hash(str) click to toggle source
# File lib/ethereum-contract-abi/util.rb, line 20
def self. keccak_hash(str)
  [Digest::Keccak256.new.hexdigest(signature)].pack("H*")
end
remove_hex_prefix(str) click to toggle source
# File lib/ethereum-contract-abi/util.rb, line 16
def self.remove_hex_prefix(str)
  str.slice(2, str.length)
end
toHexByteString(str) click to toggle source
# File lib/ethereum-contract-abi/util.rb, line 4
def self.toHexByteString(str)
  if str.start_with?("0x")
    return [str.slice(2, str.length)].pack("H*")
  end
  [str].pack("H*")
end