diff options
Diffstat (limited to 'core/execution.go')
| -rw-r--r-- | core/execution.go | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/core/execution.go b/core/execution.go index 1cb507ee7..b049e556b 100644 --- a/core/execution.go +++ b/core/execution.go @@ -27,14 +27,14 @@ import ( // Call executes within the given contract func Call(env vm.Environment, caller vm.ContractRef, addr common.Address, input []byte, gas, gasPrice, value *big.Int) (ret []byte, err error) { - ret, _, err = exec(env, caller, &addr, &addr, env.Db().GetCodeHash(addr), input, env.Db().GetCode(addr), gas, gasPrice, value) + ret, _, err = exec(true, env, caller, &addr, &addr, env.Db().GetCodeHash(addr), input, env.Db().GetCode(addr), gas, gasPrice, value) return ret, err } // CallCode executes the given address' code as the given contract address func CallCode(env vm.Environment, caller vm.ContractRef, addr common.Address, input []byte, gas, gasPrice, value *big.Int) (ret []byte, err error) { callerAddr := caller.Address() - ret, _, err = exec(env, caller, &callerAddr, &addr, env.Db().GetCodeHash(addr), input, env.Db().GetCode(addr), gas, gasPrice, value) + ret, _, err = exec(false, env, caller, &callerAddr, &addr, env.Db().GetCodeHash(addr), input, env.Db().GetCode(addr), gas, gasPrice, value) return ret, err } @@ -49,7 +49,7 @@ func DelegateCall(env vm.Environment, caller vm.ContractRef, addr common.Address // Create creates a new contract with the given code func Create(env vm.Environment, caller vm.ContractRef, code []byte, gas, gasPrice, value *big.Int) (ret []byte, address common.Address, err error) { - ret, address, err = exec(env, caller, nil, nil, crypto.Keccak256Hash(code), nil, code, gas, gasPrice, value) + ret, address, err = exec(true, env, caller, nil, nil, crypto.Keccak256Hash(code), nil, code, gas, gasPrice, value) // Here we get an error if we run into maximum stack depth, // See: https://github.com/ethereum/yellowpaper/pull/131 // and YP definitions for CREATE instruction @@ -59,7 +59,7 @@ func Create(env vm.Environment, caller vm.ContractRef, code []byte, gas, gasPric return ret, address, err } -func exec(env vm.Environment, caller vm.ContractRef, address, codeAddr *common.Address, codeHash common.Hash, input, code []byte, gas, gasPrice, value *big.Int) (ret []byte, addr common.Address, err error) { +func exec(transfers bool, env vm.Environment, caller vm.ContractRef, address, codeAddr *common.Address, codeHash common.Hash, input, code []byte, gas, gasPrice, value *big.Int) (ret []byte, addr common.Address, err error) { evm := env.Vm() // Depth check execution. Fail if we're trying to execute above the // limit. @@ -92,14 +92,24 @@ func exec(env vm.Environment, caller vm.ContractRef, address, codeAddr *common.A ) if createAccount { to = env.Db().CreateAccount(*address) + if env.ChainConfig().IsEIP158(env.BlockNumber()) { + env.Db().SetNonce(*address, 1) + } } else { if !env.Db().Exist(*address) { + if vm.Precompiled[address.Str()] == nil && env.ChainConfig().IsEIP158(env.BlockNumber()) && value.BitLen() == 0 { + caller.ReturnGas(gas, gasPrice) + return nil, common.Address{}, nil + } + to = env.Db().CreateAccount(*address) } else { to = env.Db().GetAccount(*address) } } - env.Transfer(from, to, value) + if transfers { + env.Transfer(from, to, value) + } // initialise a new contract and set the code that is to be used by the // EVM. The contract is a scoped environment for this execution context @@ -126,7 +136,7 @@ func exec(env vm.Environment, caller vm.ContractRef, address, codeAddr *common.A // When an error was returned by the EVM or when setting the creation code // above we revert to the snapshot and consume any gas remaining. Additionally // when we're in homestead this also counts for code storage gas errors. - if err != nil && (env.RuleSet().IsHomestead(env.BlockNumber()) || err != vm.CodeStoreOutOfGasError) { + if err != nil && (env.ChainConfig().IsHomestead(env.BlockNumber()) || err != vm.CodeStoreOutOfGasError) { contract.UseGas(contract.Gas) env.RevertToSnapshot(snapshotPreTransfer) |