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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
5 changed files with 39 additions and 9 deletions
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internal/ethapi/api.go
+11 -3
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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 .