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