Fix: resolve comments

consensus/bor/bor.go

@@ -679,13 +679,14 @@ func (c *Bor) Finalize(chain consensus.ChainReader, header *types.Header, state
 	// No block rewards in PoA, so the state remains as is and uncles are dropped
 	header.Root = state.IntermediateRoot(chain.Config().IsEIP158(header.Number))
 	header.UncleHash = types.CalcUncleHash(nil)
-	r := chain.(*core.BlockChain)
+	bc := chain.(*core.BlockChain)
-	r.SetStateSync(stateSyncData)
+	bc.SetStateSync(stateSyncData)
 }
 
 // FinalizeAndAssemble implements consensus.Engine, ensuring no uncles are set,
 // nor block rewards given, and returns the final block.
 func (c *Bor) FinalizeAndAssemble(chain consensus.ChainReader, header *types.Header, state *state.StateDB, txs []*types.Transaction, uncles []*types.Header, receipts []*types.Receipt) (*types.Block, error) {
+	stateSyncData := []*types.StateData{}
 	headerNumber := header.Number.Uint64()
 	if headerNumber%c.config.Sprint == 0 {
 		cx := chainContext{Chain: chain, Bor: c}
@@ -699,7 +700,7 @@ func (c *Bor) FinalizeAndAssemble(chain consensus.ChainReader, header *types.Hea
 
 		if !c.WithoutHeimdall {
 			// commit statees
-			_, err = c.CommitStates(state, header, cx)
+			stateSyncData, err = c.CommitStates(state, header, cx)
 			if err != nil {
 				log.Error("Error while committing states", "error", err)
 				return nil, err
@@ -713,7 +714,8 @@ func (c *Bor) FinalizeAndAssemble(chain consensus.ChainReader, header *types.Hea
 
 	// Assemble block
 	block := types.NewBlock(header, txs, nil, receipts)
-
+	bc := chain.(*core.BlockChain)
+	bc.SetStateSync(stateSyncData)
 	// return the final block for sealing
 	return block, nil
 }

core/blockchain.go

@@ -335,7 +335,7 @@ func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *par
 	return bc, nil
 }
 
-// SetStateSync set sync data in block
+// SetStateSync set sync data in state_data
 func (bc *BlockChain) SetStateSync(stateData []*types.StateData) {
 	bc.stateSyncData = stateData
 }
@@ -1548,6 +1548,9 @@ func (bc *BlockChain) writeBlockWithState(block *types.Block, receipts []*types.
 		// event here.
 		if emitHeadEvent {
 			bc.chainHeadFeed.Send(ChainHeadEvent{Block: block})
+			for _, data := range bc.stateSyncData {
+				bc.stateSyncFeed.Send(StateSyncEvent{StateData: data})
+			}
 		}
 	} else {
 		bc.chainSideFeed.Send(ChainSideEvent{Block: block})

core/types/block.go

@@ -66,14 +66,6 @@ func (n *BlockNonce) UnmarshalText(input []byte) error {
 	return hexutil.UnmarshalFixedText("BlockNonce", input, n[:])
 }
 
-// StateData represents state received from Ethereum Blockchain
-type StateData struct {
-	Did      uint64
-	Contract common.Address
-	Data     string
-	TxHash   common.Hash
-}
-
 //go:generate gencodec -type Header -field-override headerMarshaling -out gen_header_json.go
 
 // Header represents a block header in the Ethereum blockchain.

core/types/state_data.go

@@ -0,0 +1,11 @@
+package types
+
+import "github.com/maticnetwork/bor/common"
+
+// StateData represents state received from Ethereum Blockchain
+type StateData struct {
+	Did      uint64
+	Contract common.Address
+	Data     string
+	TxHash   common.Hash
+}