eth, internal/ethapi: drop some weird indirection (ethereum#28597)

Author: karalabe

eth/api_backend.go

@@ -249,7 +249,7 @@ func (b *EthAPIBackend) GetTd(ctx context.Context, hash common.Hash) *big.Int {
 	return nil
 }
 
-func (b *EthAPIBackend) GetEVM(ctx context.Context, msg *core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config, blockCtx *vm.BlockContext) (*vm.EVM, func() error) {
+func (b *EthAPIBackend) GetEVM(ctx context.Context, msg *core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config, blockCtx *vm.BlockContext) *vm.EVM {
 	if vmConfig == nil {
 		vmConfig = b.eth.blockchain.GetVMConfig()
 	}
@@ -260,7 +260,7 @@ func (b *EthAPIBackend) GetEVM(ctx context.Context, msg *core.Message, state *st
 	} else {
 		context = core.NewEVMBlockContext(header, b.eth.BlockChain(), nil)
 	}
-	return vm.NewEVM(context, txContext, state, b.eth.blockchain.Config(), *vmConfig), state.Error
+	return vm.NewEVM(context, txContext, state, b.eth.blockchain.Config(), *vmConfig)
 }
 
 func (b *EthAPIBackend) SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription {

internal/ethapi/api.go

@@ -1083,7 +1083,7 @@ func doCall(ctx context.Context, b Backend, args TransactionArgs, state *state.S
 	if blockOverrides != nil {
 		blockOverrides.Apply(&blockCtx)
 	}
-	evm, vmError := b.GetEVM(ctx, msg, state, header, &vm.Config{NoBaseFee: true}, &blockCtx)
+	evm := b.GetEVM(ctx, msg, state, header, &vm.Config{NoBaseFee: true}, &blockCtx)
 
 	// Wait for the context to be done and cancel the evm. Even if the
 	// EVM has finished, cancelling may be done (repeatedly)
@@ -1095,7 +1095,7 @@ func doCall(ctx context.Context, b Backend, args TransactionArgs, state *state.S
 	// Execute the message.
 	gp := new(core.GasPool).AddGas(math.MaxUint64)
 	result, err := core.ApplyMessage(evm, msg, gp)
-	if err := vmError(); err != nil {
+	if err := state.Error(); err != nil {
 		return nil, err
 	}
 
@@ -1640,7 +1640,7 @@ func AccessList(ctx context.Context, b Backend, blockNrOrHash rpc.BlockNumberOrH
 		// Apply the transaction with the access list tracer
 		tracer := logger.NewAccessListTracer(accessList, args.from(), to, precompiles)
 		config := vm.Config{Tracer: tracer, NoBaseFee: true}
-		vmenv, _ := b.GetEVM(ctx, msg, statedb, header, &config, nil)
+		vmenv := b.GetEVM(ctx, msg, statedb, header, &config, nil)
 		res, err := core.ApplyMessage(vmenv, msg, new(core.GasPool).AddGas(msg.GasLimit))
 		if err != nil {
 			return nil, 0, nil, fmt.Errorf("failed to apply transaction: %v err: %v", args.toTransaction().Hash(), err)

internal/ethapi/api_test.go

@@ -536,8 +536,7 @@ func (b testBackend) GetTd(ctx context.Context, hash common.Hash) *big.Int {
 	}
 	return big.NewInt(1)
 }
-func (b testBackend) GetEVM(ctx context.Context, msg *core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config, blockContext *vm.BlockContext) (*vm.EVM, func() error) {
-	vmError := func() error { return nil }
+func (b testBackend) GetEVM(ctx context.Context, msg *core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config, blockContext *vm.BlockContext) *vm.EVM {
 	if vmConfig == nil {
 		vmConfig = b.chain.GetVMConfig()
 	}
@@ -546,7 +545,7 @@ func (b testBackend) GetEVM(ctx context.Context, msg *core.Message, state *state
 	if blockContext != nil {
 		context = *blockContext
 	}
-	return vm.NewEVM(context, txContext, state, b.chain.Config(), *vmConfig), vmError
+	return vm.NewEVM(context, txContext, state, b.chain.Config(), *vmConfig)
 }
 func (b testBackend) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription {
 	panic("implement me")

internal/ethapi/backend.go

@@ -68,7 +68,7 @@ type Backend interface {
 	PendingBlockAndReceipts() (*types.Block, types.Receipts)
 	GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error)
 	GetTd(ctx context.Context, hash common.Hash) *big.Int
-	GetEVM(ctx context.Context, msg *core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config, blockCtx *vm.BlockContext) (*vm.EVM, func() error)
+	GetEVM(ctx context.Context, msg *core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config, blockCtx *vm.BlockContext) *vm.EVM
 	SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription
 	SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription
 	SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription

internal/ethapi/transaction_args_test.go

@@ -305,8 +305,8 @@ func (b *backendMock) GetLogs(ctx context.Context, blockHash common.Hash, number
 	return nil, nil
 }
 func (b *backendMock) GetTd(ctx context.Context, hash common.Hash) *big.Int { return nil }
-func (b *backendMock) GetEVM(ctx context.Context, msg *core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config, blockCtx *vm.BlockContext) (*vm.EVM, func() error) {
-	return nil, nil
+func (b *backendMock) GetEVM(ctx context.Context, msg *core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config, blockCtx *vm.BlockContext) *vm.EVM {
+	return nil
 }
 func (b *backendMock) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription { return nil }
 func (b *backendMock) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription {