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internal/ethapi: add state override to estimateGas (#27845)

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This commit is contained in:
Amin Talebi 2023-08-07 16:03:57 +02:00 committed by GitHub
parent d14c07d91e
commit eeebb07c73
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 39 additions and 9 deletions
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4
graphql/graphql.go
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@ -1130,7 +1130,7 @@ func (b *Block) Call(ctx context.Context, args struct {
func (b *Block) EstimateGas(ctx context.Context, args struct {
Data ethapi.TransactionArgs
}) (hexutil.Uint64, error) {
return ethapi.DoEstimateGas(ctx, b.r.backend, args.Data, *b.numberOrHash, b.r.backend.RPCGasCap())
return ethapi.DoEstimateGas(ctx, b.r.backend, args.Data, *b.numberOrHash, nil, b.r.backend.RPCGasCap())
}
type Pending struct {
@ -1194,7 +1194,7 @@ func (p *Pending) EstimateGas(ctx context.Context, args struct {
Data ethapi.TransactionArgs
}) (hexutil.Uint64, error) {
latestBlockNr := rpc.BlockNumberOrHashWithNumber(rpc.LatestBlockNumber)
return ethapi.DoEstimateGas(ctx, p.r.backend, args.Data, latestBlockNr, p.r.backend.RPCGasCap())
return ethapi.DoEstimateGas(ctx, p.r.backend, args.Data, latestBlockNr, nil, p.r.backend.RPCGasCap())
}
// Resolver is the top-level object in the GraphQL hierarchy.

14
internal/ethapi/api.go
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@ -1134,7 +1134,7 @@ func (s *BlockChainAPI) Call(ctx context.Context, args TransactionArgs, blockNrO
return result.Return(), result.Err
}
func DoEstimateGas(ctx context.Context, b Backend, args TransactionArgs, blockNrOrHash rpc.BlockNumberOrHash, gasCap uint64) (hexutil.Uint64, error) {
func DoEstimateGas(ctx context.Context, b Backend, args TransactionArgs, blockNrOrHash rpc.BlockNumberOrHash, overrides *StateOverride, gasCap uint64) (hexutil.Uint64, error) {
// Binary search the gas requirement, as it may be higher than the amount used
var (
lo uint64 = params.TxGas - 1
@ -1176,6 +1176,10 @@ func DoEstimateGas(ctx context.Context, b Backend, args TransactionArgs, blockNr
if err != nil {
return 0, err
}
err = overrides.Apply(state)
if err != nil {
return 0, err
}
balance := state.GetBalance(*args.From) // from can't be nil
available := new(big.Int).Set(balance)
if args.Value != nil {
@ -1221,6 +1225,10 @@ func DoEstimateGas(ctx context.Context, b Backend, args TransactionArgs, blockNr
if state == nil || err != nil {
return 0, err
}
err = overrides.Apply(state)
if err != nil {
return 0, err
}
// Execute the binary search and hone in on an executable gas limit
for lo+1 < hi {
s := state.Copy()
@ -1261,12 +1269,12 @@ func DoEstimateGas(ctx context.Context, b Backend, args TransactionArgs, blockNr
// EstimateGas returns an estimate of the amount of gas needed to execute the
// given transaction against the current pending block.
func (s *BlockChainAPI) EstimateGas(ctx context.Context, args TransactionArgs, blockNrOrHash *rpc.BlockNumberOrHash) (hexutil.Uint64, error) {
func (s *BlockChainAPI) EstimateGas(ctx context.Context, args TransactionArgs, blockNrOrHash *rpc.BlockNumberOrHash, overrides *StateOverride) (hexutil.Uint64, error) {
bNrOrHash := rpc.BlockNumberOrHashWithNumber(rpc.LatestBlockNumber)
if blockNrOrHash != nil {
bNrOrHash = *blockNrOrHash
}
return DoEstimateGas(ctx, s.b, args, bNrOrHash, s.b.RPCGasCap())
return DoEstimateGas(ctx, s.b, args, bNrOrHash, overrides, s.b.RPCGasCap())
}
// RPCMarshalHeader converts the given header to the RPC output .

24
internal/ethapi/api_test.go
View File

@ -560,6 +560,7 @@ func TestEstimateGas(t *testing.T) {
var testSuite = []struct {
blockNumber rpc.BlockNumber
call TransactionArgs
overrides StateOverride
expectErr error
want uint64
}{
@ -592,9 +593,30 @@ func TestEstimateGas(t *testing.T) {
expectErr: nil,
want: 53000,
},
{
blockNumber: rpc.LatestBlockNumber,
call: TransactionArgs{},
overrides: StateOverride{
randomAccounts[0].addr: OverrideAccount{Balance: newRPCBalance(new(big.Int).Mul(big.NewInt(1), big.NewInt(params.Ether)))},
},
expectErr: nil,
want: 53000,
},
{
blockNumber: rpc.LatestBlockNumber,
call: TransactionArgs{
From: &randomAccounts[0].addr,
To: &randomAccounts[1].addr,
Value: (*hexutil.Big)(big.NewInt(1000)),
},
overrides: StateOverride{
randomAccounts[0].addr: OverrideAccount{Balance: newRPCBalance(big.NewInt(0))},
},
expectErr: core.ErrInsufficientFunds,
},
}
for i, tc := range testSuite {
result, err := api.EstimateGas(context.Background(), tc.call, &rpc.BlockNumberOrHash{BlockNumber: &tc.blockNumber})
result, err := api.EstimateGas(context.Background(), tc.call, &rpc.BlockNumberOrHash{BlockNumber: &tc.blockNumber}, &tc.overrides)
if tc.expectErr != nil {
if err == nil {
t.Errorf("test %d: want error %v, have nothing", i, tc.expectErr)

2
internal/ethapi/transaction_args.go
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@ -111,7 +111,7 @@ func (args *TransactionArgs) setDefaults(ctx context.Context, b Backend) error {
AccessList: args.AccessList,
}
pendingBlockNr := rpc.BlockNumberOrHashWithNumber(rpc.PendingBlockNumber)
estimated, err := DoEstimateGas(ctx, b, callArgs, pendingBlockNr, b.RPCGasCap())
estimated, err := DoEstimateGas(ctx, b, callArgs, pendingBlockNr, nil, b.RPCGasCap())
if err != nil {
return err
}

4
internal/web3ext/web3ext.go
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@ -536,8 +536,8 @@ web3._extend({
new web3._extend.Method({
name: 'estimateGas',
call: 'eth_estimateGas',
params: 2,
inputFormatter: [web3._extend.formatters.inputCallFormatter, web3._extend.formatters.inputBlockNumberFormatter],
params: 3,
inputFormatter: [web3._extend.formatters.inputCallFormatter, web3._extend.formatters.inputBlockNumberFormatter, null],
outputFormatter: web3._extend.utils.toDecimal
}),
new web3._extend.Method({