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core/vm: terminate tracing using defers

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This commit is contained in:
Péter Szilágyi 2017-12-21 10:52:25 +02:00
parent 8ce0b32704
commit 9ceee7c252
1 changed files with 10 additions and 9 deletions
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19
core/vm/evm.go
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@ -166,17 +166,21 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
}
evm.Transfer(evm.StateDB, caller.Address(), to.Address(), value)
// initialise a new contract and set the code that is to be used by the
// E The contract is a scoped environment for this execution context
// only.
// 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 only.
contract := NewContract(caller, to, value, gas)
contract.SetCallCode(&addr, evm.StateDB.GetCodeHash(addr), evm.StateDB.GetCode(addr))
if evm.vmConfig.Debug && evm.depth == 0 {
evm.vmConfig.Tracer.CaptureStart(caller.Address(), addr, false, input, gas, value)
}
start := time.Now()
// Capture the tracer start/end events in debug mode
if evm.vmConfig.Debug && evm.depth == 0 {
evm.vmConfig.Tracer.CaptureStart(caller.Address(), addr, false, input, gas, value)
defer func() { // Lazy evaluation of the parameters
evm.vmConfig.Tracer.CaptureEnd(ret, gas-contract.Gas, time.Since(start), err)
}()
}
ret, err = run(evm, contract, input)
// When an error was returned by the EVM or when setting the creation code
@ -188,9 +192,6 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
contract.UseGas(contract.Gas)
}
}
if evm.vmConfig.Debug && evm.depth == 0 {
evm.vmConfig.Tracer.CaptureEnd(ret, gas-contract.Gas, time.Since(start), err)
}
return ret, contract.Gas, err
}