add exchain define

exchain/account.go

@@ -8,6 +8,10 @@ type Wallet struct {
 	FrozenBalance uint256.Int `json:"frozenBalance"`
 }
 
+func (w *Wallet) AddBalance(balance uint256.Int) {
+	w.Balance = *new(uint256.Int).Add(&w.Balance, &balance)
+}
+
 type ProxyPublickey [64]byte
 
 type AccountInfo struct {

exchain/db.go

@@ -14,4 +14,15 @@ type StateDB interface {
 }
 
 type ChainDB interface {
+	AddCoin()
+	GetCoin()
+	AddPair()
+	GetPair()
 }
+
+// todo: tx press test.
+// limit, market, cancel 100w, each block 10w.
+// serialize and unserialize.
+// todo: add new struct.
+// define Coin, Pair struct to store at chaindb.
+// todo: define detail tx struct.

exchain/transaction.go

@@ -51,13 +51,11 @@ type DepositTxData struct {
 	// From is exposed through the types.Signer, not through TxData
 	From common.Address
 	// nil means contract creation
-	To *common.Address `rlp:"nil"`
+	To *common.Address
 	// Mint is minted on L2, locked on L1, nil if no minting.
-	Mint *big.Int `rlp:"nil"`
+	Mint *big.Int
 	// Value is transferred from L2 balance, executed after Mint (if any)
 	Value *big.Int
-	// gas limit
-	Gas uint64
 	// Field indicating if this transaction is exempt from the L2 gas limit.
 	IsSystemTransaction bool
 	// Normal Tx data

exchain/types.go

@@ -13,5 +13,5 @@ type BlockHeader struct {
 	Proposer  common.Address
 }
 
-type BlockBody struct {
-}
+type Coin struct{}
+type ExPair struct{}