Class: EthereumContractABI::Util

Inherits:
Object
  • Object
show all
Defined in:
lib/ethereum-contract-abi/util.rb

Class Method Summary collapse

Class Method Details

.fromHexByteString(str, with_prefix: true) ⇒ Object 



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# 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) ⇒ Object 



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# 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) ⇒ Object 



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# File 'lib/ethereum-contract-abi/util.rb', line 16

def self.remove_hex_prefix(str)
  str.slice(2, str.length)
end

.toHexByteString(str) ⇒ Object 



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# 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