internal/ethapi: fix simulation + new logging schema

Author: holiman

core/state/statedb_logger.go

@@ -251,3 +251,8 @@ func (s *stateDBLogger) GetTrie() Trie {
 func (s *stateDBLogger) AccessEvents() *AccessEvents {
 	return s.inner.AccessEvents()
 }
+
+// Error returns any memorized database failure occurred previously.
+func (s *stateDBLogger) Error() error {
+	return s.inner.Error()
+}

core/vm/interface.go

@@ -114,6 +114,9 @@ type StateDB interface {
 	GetTrie() state.Trie
 	// AccessEvents returns the access-events collected for verkle-witness processing.
 	AccessEvents() *state.AccessEvents
+
+	// Error returns any memorized database failure occurred previously.
+	Error() error
 }
 
 // CallContext provides a basic interface for the EVM calling conventions. The EVM

internal/ethapi/api.go

@@ -1212,7 +1212,7 @@ func applyMessage(ctx context.Context, b Backend, args TransactionArgs, state *s
 	return applyMessageWithEVM(ctx, evm, msg, state, timeout, gp)
 }
 
-func applyMessageWithEVM(ctx context.Context, evm *vm.EVM, msg *core.Message, state *state.StateDB, timeout time.Duration, gp *core.GasPool) (*core.ExecutionResult, error) {
+func applyMessageWithEVM(ctx context.Context, evm *vm.EVM, msg *core.Message, state vm.StateDB, timeout time.Duration, gp *core.GasPool) (*core.ExecutionResult, error) {
 	// Wait for the context to be done and cancel the evm. Even if the
 	// EVM has finished, cancelling may be done (repeatedly)
 	go func() {

internal/ethapi/api_test.go

@@ -2195,6 +2195,7 @@ func TestSimulateV1(t *testing.T) {
 				t.Fatalf("failed to unmarshal result: %v", err)
 			}
 			if !reflect.DeepEqual(have, tc.want) {
+				t.Log(string(resBytes))
 				t.Errorf("test %s, result mismatch, have\n%v\n, want\n%v\n", tc.name, have, tc.want)
 			}
 		})

internal/ethapi/simulate.go

@@ -188,6 +188,10 @@ func (sim *simulator) processBlock(ctx context.Context, block *simBlock, header,
 		evm = vm.NewEVM(blockContext, vm.TxContext{GasPrice: new(big.Int)}, sim.state, sim.chainConfig, *vmConfig)
 	)
 	sim.state.SetLogger(tracer.Hooks())
+	logState := vm.StateDB(sim.state.Wrapped())
+	if logState == nil {
+		logState = vm.StateDB(sim.state)
+	}
 	// It is possible to override precompiles with EVM bytecode, or
 	// move them to another address.
 	if precompiles != nil {
@@ -205,8 +209,8 @@ func (sim *simulator) processBlock(ctx context.Context, block *simBlock, header,
 		tracer.reset(tx.Hash(), uint(i))
 		// EoA check is always skipped, even in validation mode.
 		msg := call.ToMessage(header.BaseFee, !sim.validate, true)
-		evm.Reset(core.NewEVMTxContext(msg), sim.state)
-		result, err := applyMessageWithEVM(ctx, evm, msg, sim.state, timeout, sim.gp)
+		evm.Reset(core.NewEVMTxContext(msg), logState)
+		result, err := applyMessageWithEVM(ctx, evm, msg, logState, timeout, sim.gp)
 		if err != nil {
 			txErr := txValidationError(err)
 			return nil, nil, txErr