Skip to content

core/vm: Remove snapshot param from Interpreter.Run() #15674

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Dec 18, 2017
Merged

core/vm: Remove snapshot param from Interpreter.Run() #15674

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
14 changes: 7 additions & 7 deletions core/vm/evm.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ type (
)

// run runs the given contract and takes care of running precompiles with a fallback to the byte code interpreter.
func run(evm *EVM, snapshot int, contract *Contract, input []byte) ([]byte, error) {
func run(evm *EVM, contract *Contract, input []byte) ([]byte, error) {
if contract.CodeAddr != nil {
precompiles := PrecompiledContractsHomestead
if evm.ChainConfig().IsByzantium(evm.BlockNumber) {
Expand All @@ -48,7 +48,7 @@ func run(evm *EVM, snapshot int, contract *Contract, input []byte) ([]byte, erro
return RunPrecompiledContract(p, input, contract)
}
}
return evm.interpreter.Run(snapshot, contract, input)
return evm.interpreter.Run(contract, input)
}

// Context provides the EVM with auxiliary information. Once provided
Expand Down Expand Up @@ -171,7 +171,7 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
contract := NewContract(caller, to, value, gas)
contract.SetCallCode(&addr, evm.StateDB.GetCodeHash(addr), evm.StateDB.GetCode(addr))

ret, err = run(evm, snapshot, contract, input)
ret, err = run(evm, contract, input)
// 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.
Expand Down Expand Up @@ -215,7 +215,7 @@ func (evm *EVM) CallCode(caller ContractRef, addr common.Address, input []byte,
contract := NewContract(caller, to, value, gas)
contract.SetCallCode(&addr, evm.StateDB.GetCodeHash(addr), evm.StateDB.GetCode(addr))

ret, err = run(evm, snapshot, contract, input)
ret, err = run(evm, contract, input)
if err != nil {
evm.StateDB.RevertToSnapshot(snapshot)
if err != errExecutionReverted {
Expand Down Expand Up @@ -248,7 +248,7 @@ func (evm *EVM) DelegateCall(caller ContractRef, addr common.Address, input []by
contract := NewContract(caller, to, nil, gas).AsDelegate()
contract.SetCallCode(&addr, evm.StateDB.GetCodeHash(addr), evm.StateDB.GetCode(addr))

ret, err = run(evm, snapshot, contract, input)
ret, err = run(evm, contract, input)
if err != nil {
evm.StateDB.RevertToSnapshot(snapshot)
if err != errExecutionReverted {
Expand Down Expand Up @@ -291,7 +291,7 @@ func (evm *EVM) StaticCall(caller ContractRef, addr common.Address, input []byte
// 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.
ret, err = run(evm, snapshot, contract, input)
ret, err = run(evm, contract, input)
if err != nil {
evm.StateDB.RevertToSnapshot(snapshot)
if err != errExecutionReverted {
Expand Down Expand Up @@ -338,7 +338,7 @@ func (evm *EVM) Create(caller ContractRef, code []byte, gas uint64, value *big.I
if evm.vmConfig.NoRecursion && evm.depth > 0 {
return nil, contractAddr, gas, nil
}
ret, err = run(evm, snapshot, contract, nil)
ret, err = run(evm, contract, nil)
// check whether the max code size has been exceeded
maxCodeSizeExceeded := evm.ChainConfig().IsEIP158(evm.BlockNumber) && len(ret) > params.MaxCodeSize
// if the contract creation ran successfully and no errors were returned
Expand Down
6 changes: 3 additions & 3 deletions core/vm/interpreter.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -107,9 +107,9 @@ func (in *Interpreter) enforceRestrictions(op OpCode, operation operation, stack
// the return byte-slice and an error if one occurred.
//
// It's important to note that any errors returned by the interpreter should be
// considered a revert-and-consume-all-gas operation. No error specific checks
// should be handled to reduce complexity and errors further down the in.
func (in *Interpreter) Run(snapshot int, contract *Contract, input []byte) (ret []byte, err error) {
// considered a revert-and-consume-all-gas operation except for
// errExecutionReverted which means revert-and-keep-gas-left.
func (in *Interpreter) Run(contract *Contract, input []byte) (ret []byte, err error) {
// Increment the call depth which is restricted to 1024
in.evm.depth++
defer func() { in.evm.depth-- }()
Expand Down
2 changes: 1 addition & 1 deletion internal/ethapi/tracer_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,7 @@ func runTrace(tracer *JavascriptTracer) (interface{}, error) {
contract := vm.NewContract(account{}, account{}, big.NewInt(0), 10000)
contract.Code = []byte{byte(vm.PUSH1), 0x1, byte(vm.PUSH1), 0x1, 0x0}

_, err := env.Interpreter().Run(0, contract, []byte{})
_, err := env.Interpreter().Run(contract, []byte{})
if err != nil {
return nil, err
}
Expand Down