diff options
Diffstat (limited to 'accounts/abi/bind/backends/simulated.go')
| -rw-r--r-- | accounts/abi/bind/backends/simulated.go | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/accounts/abi/bind/backends/simulated.go b/accounts/abi/bind/backends/simulated.go index 17a0ed7fe..18e8481c5 100644 --- a/accounts/abi/bind/backends/simulated.go +++ b/accounts/abi/bind/backends/simulated.go @@ -19,6 +19,7 @@ package backends import ( "math/big" + "github.com/ethereum/go-ethereum/accounts/abi/bind" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/core/state" @@ -27,6 +28,9 @@ import ( "github.com/ethereum/go-ethereum/event" ) +// This nil assignment ensures compile time that SimulatedBackend implements bind.ContractBackend. +var _ bind.ContractBackend = (*SimulatedBackend)(nil) + // SimulatedBackend implements bind.ContractBackend, simulating a blockchain in // the background. Its main purpose is to allow easily testing contract bindings. type SimulatedBackend struct { @@ -79,13 +83,11 @@ func (b *SimulatedBackend) ContractCall(contract common.Address, data []byte, pe statedb *state.StateDB ) if pending { - block, statedb = b.pendingBlock, b.pendingState + block, statedb = b.pendingBlock, b.pendingState.Copy() } else { block = b.blockchain.CurrentBlock() statedb, _ = b.blockchain.State() } - statedb = statedb.Copy() - // Set infinite balance to the a fake caller account from := statedb.GetOrNewStateObject(common.Address{}) from.SetBalance(common.MaxBig) @@ -100,28 +102,29 @@ func (b *SimulatedBackend) ContractCall(contract common.Address, data []byte, pe data: data, } // Execute the call and return - vmenv := core.NewEnv(statedb, b.blockchain, msg, block.Header()) + vmenv := core.NewEnv(statedb, b.blockchain, msg, block.Header(), nil) gaspool := new(core.GasPool).AddGas(common.MaxBig) out, _, err := core.ApplyMessage(vmenv, msg, gaspool) return out, err } -// AccountNonce implements ContractTransactor.AccountNonce, retrieving the nonce -// currently pending for the account. -func (b *SimulatedBackend) AccountNonce(account common.Address) (uint64, error) { +// PendingAccountNonce implements ContractTransactor.PendingAccountNonce, retrieving +// the nonce currently pending for the account. +func (b *SimulatedBackend) PendingAccountNonce(account common.Address) (uint64, error) { return b.pendingState.GetOrNewStateObject(account).Nonce(), nil } -// GasPrice implements ContractTransactor.GasPrice. Since the simulated chain -// doens't have miners, we just return a gas price of 1 for any call. -func (b *SimulatedBackend) GasPrice() (*big.Int, error) { +// SuggestGasPrice implements ContractTransactor.SuggestGasPrice. Since the simulated +// chain doens't have miners, we just return a gas price of 1 for any call. +func (b *SimulatedBackend) SuggestGasPrice() (*big.Int, error) { return big.NewInt(1), nil } -// GasLimit implements ContractTransactor.GasLimit, executing the requested code -// against the currently pending block/state and returning the used gas. -func (b *SimulatedBackend) GasLimit(sender common.Address, contract *common.Address, value *big.Int, data []byte) (*big.Int, error) { +// EstimateGasLimit implements ContractTransactor.EstimateGasLimit, executing the +// requested code against the currently pending block/state and returning the used +// gas. +func (b *SimulatedBackend) EstimateGasLimit(sender common.Address, contract *common.Address, value *big.Int, data []byte) (*big.Int, error) { // Create a copy of the currently pending state db to screw around with var ( block = b.pendingBlock @@ -142,14 +145,14 @@ func (b *SimulatedBackend) GasLimit(sender common.Address, contract *common.Addr data: data, } // Execute the call and return - vmenv := core.NewEnv(statedb, b.blockchain, msg, block.Header()) + vmenv := core.NewEnv(statedb, b.blockchain, msg, block.Header(), nil) gaspool := new(core.GasPool).AddGas(common.MaxBig) _, gas, err := core.ApplyMessage(vmenv, msg, gaspool) return gas, err } -// Transact implements ContractTransactor.SendTransaction, delegating the raw +// SendTransaction implements ContractTransactor.SendTransaction, delegating the raw // transaction injection to the remote node. func (b *SimulatedBackend) SendTransaction(tx *types.Transaction) error { blocks, _ := core.GenerateChain(b.blockchain.CurrentBlock(), b.database, 1, func(number int, block *core.BlockGen) { |