package ethchain import ( "github.com/ethereum/eth-go/ethutil" "math/big" ) type Contract struct { Amount *big.Int Nonce uint64 state *ethutil.Trie } func NewContract(Amount *big.Int, root []byte) *Contract { contract := &Contract{Amount: Amount, Nonce: 0} contract.state = ethutil.NewTrie(ethutil.Config.Db, string(root)) return contract } func (c *Contract) RlpEncode() []byte { return ethutil.Encode([]interface{}{c.Amount, c.Nonce, c.state.Root}) } func (c *Contract) RlpDecode(data []byte) { decoder := ethutil.NewValueFromBytes(data) c.Amount = decoder.Get(0).BigInt() c.Nonce = decoder.Get(1).Uint() c.state = ethutil.NewTrie(ethutil.Config.Db, decoder.Get(2).Interface()) } func (c *Contract) Addr(addr []byte) *ethutil.Value { return ethutil.NewValueFromBytes([]byte(c.state.Get(string(addr)))) } func (c *Contract) SetAddr(addr []byte, value interface{}) { c.state.Update(string(addr), string(ethutil.NewValue(value).Encode())) } func (c *Contract) State() *ethutil.Trie { return c.state }