e4: small tests preparations (#7220)

accounts/abi/bind/backends/simulated.go

@@ -179,20 +179,6 @@ func (b *SimulatedBackend) emptyPendingBlock() {
 	b.pendingReceipts = chain.Receipts[0]
 	b.pendingHeader = chain.Headers[0]
 	b.gasPool = new(core.GasPool).AddGas(b.pendingHeader.GasLimit)
-	if ethconfig.EnableHistoryV4InTest {
-		panic("implement domain state reader")
-		/*
-			agg := db.(*temporal.DB).GetAgg()
-			agg.SetTx(tx)
-
-			rs := state.NewStateV3("", agg.BufferedDomains())
-			stateWriter = state.NewStateWriterV3(rs)
-			r := state.NewStateReaderV3(rs)
-			r.SetTx(tx)
-			stateReader = r
-			defer agg.StartUnbufferedWrites().FinishWrites()
-		*/
-	}
 	if b.pendingReaderTx != nil {
 		b.pendingReaderTx.Rollback()
 	}
@@ -201,7 +187,12 @@ func (b *SimulatedBackend) emptyPendingBlock() {
 		panic(err)
 	}
 	b.pendingReaderTx = tx
+	if ethconfig.EnableHistoryV4InTest {
+		panic("implement me")
+		//b.pendingReader = state.NewReaderV4(b.pendingReaderTx.(kv.TemporalTx))
+	} else {
 		b.pendingReader = state.NewPlainStateReader(b.pendingReaderTx)
+	}
 	b.pendingState = state.New(b.pendingReader)
 }
 

core/genesis_write.go

@@ -40,6 +40,7 @@ import (
 	"github.com/ledgerwatch/erigon/core/state"
 	"github.com/ledgerwatch/erigon/core/types"
 	"github.com/ledgerwatch/erigon/crypto"
+	"github.com/ledgerwatch/erigon/eth/ethconfig"
 	"github.com/ledgerwatch/erigon/params"
 	"github.com/ledgerwatch/erigon/params/networkname"
 	"github.com/ledgerwatch/erigon/turbo/trie"
@@ -175,6 +176,13 @@ func WriteGenesisState(g *types.Genesis, tx kv.RwTx, tmpDir string) (*types.Bloc
 	if err != nil {
 		return nil, nil, err
 	}
+	var stateWriter state.StateWriter
+	if ethconfig.EnableHistoryV4InTest {
+		panic("implement me")
+		//tx.(*temporal.Tx).Agg().SetTxNum(0)
+		//stateWriter = state.NewWriterV4(tx.(kv.TemporalTx))
+		//defer tx.(*temporal.Tx).Agg().StartUnbufferedWrites().FinishWrites()
+	} else {
 		for addr, account := range g.Alloc {
 			if len(account.Code) > 0 || len(account.Storage) > 0 {
 				// Special case for weird tests - inaccessible storage
@@ -185,22 +193,24 @@ func WriteGenesisState(g *types.Genesis, tx kv.RwTx, tmpDir string) (*types.Bloc
 				}
 			}
 		}
+		stateWriter = state.NewPlainStateWriter(tx, tx, 0)
+	}
 
 	if block.Number().Sign() != 0 {
 		return nil, statedb, fmt.Errorf("can't commit genesis block with number > 0")
 	}
 
-	blockWriter := state.NewPlainStateWriter(tx, tx, 0)
+	if err := statedb.CommitBlock(&chain.Rules{}, stateWriter); err != nil {
-
-	if err := statedb.CommitBlock(&chain.Rules{}, blockWriter); err != nil {
 		return nil, statedb, fmt.Errorf("cannot write state: %w", err)
 	}
-	if err := blockWriter.WriteChangeSets(); err != nil {
+	if csw, ok := stateWriter.(state.WriterWithChangeSets); ok {
+		if err := csw.WriteChangeSets(); err != nil {
 			return nil, statedb, fmt.Errorf("cannot write change sets: %w", err)
 		}
-	if err := blockWriter.WriteHistory(); err != nil {
+		if err := csw.WriteHistory(); err != nil {
 			return nil, statedb, fmt.Errorf("cannot write history: %w", err)
 		}
+	}
 	return block, statedb, nil
 }
 func MustCommitGenesis(g *types.Genesis, db kv.RwDB, tmpDir string) *types.Block {

core/state/temporal/kv_temporal.go

@@ -71,7 +71,7 @@ func New(db kv.RwDB, agg *state.AggregatorV3, cb1 tConvertV3toV2, cb2 tRestoreCo
 
 	return &DB{RwDB: db, agg: agg, convertV3toV2: cb1, restoreCodeHash: cb2, parseInc: cb3, systemContractLookup: systemContractLookup}, nil
 }
-func (db *DB) GetAgg() *state.AggregatorV3 { return db.agg }
+func (db *DB) Agg() *state.AggregatorV3 { return db.agg }
 
 func (db *DB) BeginTemporalRo(ctx context.Context) (kv.TemporalTx, error) {
 	kvTx, err := db.RwDB.BeginRo(ctx)
@@ -162,6 +162,8 @@ type Tx struct {
 	resourcesToClose []kv.Closer
 }
 
+func (tx *Tx) AggCtx() *state.AggregatorV3Context { return tx.agg }
+func (tx *Tx) Agg() *state.AggregatorV3           { return tx.db.agg }
 func (tx *Tx) Rollback() {
 	for _, closer := range tx.resourcesToClose {
 		closer.Close()