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Trace basic calls! And tests.

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This commit is contained in:
Gav Wood 2016-03-21 11:24:03 +01:00
parent 72b604b8e8
commit c4d45e0cf0
2 changed files with 162 additions and 25 deletions
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60
ethcore/src/executive.rs
View File

@ -246,41 +246,49 @@ impl<'a> Executive<'a> {
Err(evm::Error::OutOfGas)
}
}
} else if params.code.is_some() {
} else {
// if destination is a contract, do normal message call
// don't trace is it's DELEGATECALL or CALLCODE.
// don't trace if it's DELEGATECALL or CALLCODE.
let should_trace = if let ActionValue::Transfer(_) = params.value {
params.code_address == params.address
params.code_address == params.address && substate.subtraces.is_some()
} else { false };
// part of substate that may be reverted
let mut unconfirmed_substate = Substate::new(substate.subtraces.is_some());
// transaction tracing stuff. None if there's no tracing.
let mut trace_info = if should_trace { substate.subtraces.as_ref().map(|_| (TraceAction::from_call(&params), self.depth)) } else { None };
let mut trace_output = trace_info.as_ref().map(|_| vec![]);
let (mut trace_info, mut trace_output) = if should_trace {
(Some((TraceAction::from_call(&params), self.depth)), Some(vec![]))
} else { (None, None) };
let res = {
self.exec_vm(params, &mut unconfirmed_substate, OutputPolicy::Return(output, trace_output.as_mut()))
};
if params.code.is_some() {
// part of substate that may be reverted
let mut unconfirmed_substate = Substate::new(substate.subtraces.is_some());
trace!(target: "executive", "res={:?}", res);
let res = {
self.exec_vm(params, &mut unconfirmed_substate, OutputPolicy::Return(output, trace_output.as_mut()))
};
// if there's tracing, make up trace_info's result with trace_output and some arithmetic.
if let Some((TraceAction::Call(ref mut c), _)) = trace_info {
c.result = res.as_ref().ok().map(|gas_left| (c.gas - *gas_left, trace_output.expect("trace_info is Some: qed")));
trace!(target: "executive", "res={:?}", res);
// if there's tracing, make up trace_info's result with trace_output and some arithmetic.
if let Some((TraceAction::Call(ref mut c), _)) = trace_info {
c.result = res.as_ref().ok().map(|gas_left| (c.gas - *gas_left, trace_output.expect("trace_info is Some: so should_trace: qed")));
}
trace!(target: "executive", "substate={:?}; unconfirmed_substate={:?}\n", substate, unconfirmed_substate);
self.enact_result(&res, substate, unconfirmed_substate, trace_info);
trace!(target: "executive", "enacted: substate={:?}\n", substate);
res
} else {
// otherwise it's just a basic transaction, only do tracing, if necessary.
trace!(target: "executive", "Basic message (send funds) should_trace={}", should_trace);
self.state.clear_snapshot();
if let Some((TraceAction::Call(ref mut c), _)) = trace_info {
c.result = Some((x!(0), vec![]));
}
substate.accrue_trace(if should_trace {Some(vec![])} else {None}, trace_info);
Ok(x!(0))
}
trace!(target: "executive", "substate={:?}; unconfirmed_substate={:?}\n", substate, unconfirmed_substate);
self.enact_result(&res, substate, unconfirmed_substate, trace_info);
trace!(target: "executive", "enacted: substate={:?}\n", substate);
res
} else {
// otherwise, nothing
self.state.clear_snapshot();
Ok(params.gas)
}
}
@ -537,6 +545,7 @@ mod tests {
//let next_address = contract_address(&address, &U256::zero());
let mut params = ActionParams::default();
params.address = address.clone();
params.code_address = address.clone();
params.sender = sender.clone();
params.origin = sender.clone();
params.gas = U256::from(100_000);
@ -634,6 +643,7 @@ mod tests {
assert_eq!(substate.subtraces, expected_trace);
assert_eq!(gas_left, U256::from(96_776));
}
evm_test!{test_create_contract_value_too_high: test_create_contract_value_too_high_jit, test_create_contract_value_too_high_int}
fn test_create_contract_value_too_high(factory: Factory) {
// code:

127
ethcore/src/state.rs
View File

@ -469,6 +469,44 @@ fn should_trace_call_transaction() {
assert_eq!(result.trace, expected_trace);
}
#[test]
fn should_trace_basic_call_transaction() {
init_log();
let temp = RandomTempPath::new();
let mut state = get_temp_state_in(temp.as_path());
let mut info = EnvInfo::default();
info.gas_limit = x!(1_000_000);
let engine = TestEngine::new(5, Factory::default());
let t = Transaction {
nonce: x!(0),
gas_price: x!(0),
gas: x!(100_000),
action: Action::Call(x!(0xa)),
value: x!(100),
data: vec![],
}.sign(&"".sha3());
state.add_balance(t.sender().as_ref().unwrap(), &x!(100));
let result = state.apply(&info, &engine, &t, true).unwrap();
let expected_trace = Some(Trace {
depth: 0,
action: TraceAction::Call(TraceCall {
from: x!("9cce34f7ab185c7aba1b7c8140d620b4bda941d6"),
to: x!(0xa),
value: x!(100),
gas: x!(79000),
input: vec![],
result: Some((x!(0), vec![]))
}),
subs: vec![]
});
assert_eq!(result.trace, expected_trace);
}
#[test]
fn should_not_trace_call_transaction_to_builtin() {
init_log();
@ -705,6 +743,95 @@ fn should_trace_call_with_subcall_transaction() {
assert_eq!(result.trace, expected_trace);
}
#[test]
fn should_trace_call_with_basic_subcall_transaction() {
init_log();
let temp = RandomTempPath::new();
let mut state = get_temp_state_in(temp.as_path());
let mut info = EnvInfo::default();
info.gas_limit = x!(1_000_000);
let engine = TestEngine::new(5, Factory::default());
let t = Transaction {
nonce: x!(0),
gas_price: x!(0),
gas: x!(100_000),
action: Action::Call(x!(0xa)),
value: x!(100),
data: vec![],
}.sign(&"".sha3());
state.init_code(&x!(0xa), FromHex::from_hex("60006000600060006045600b6000f1").unwrap());
state.add_balance(t.sender().as_ref().unwrap(), &x!(100));
let result = state.apply(&info, &engine, &t, true).unwrap();
let expected_trace = Some(Trace {
depth: 0,
action: TraceAction::Call(TraceCall {
from: x!("9cce34f7ab185c7aba1b7c8140d620b4bda941d6"),
to: x!(0xa),
value: x!(100),
gas: x!(79000),
input: vec![],
result: Some((x!(34061), vec![]))
}),
subs: vec![Trace {
depth: 1,
action: TraceAction::Call(TraceCall {
from: x!(0xa),
to: x!(0xb),
value: x!(69),
gas: x!(2300),
input: vec![],
result: Some((x!(0), vec![]))
}),
subs: vec![]
}]
});
assert_eq!(result.trace, expected_trace);
}
#[test]
fn should_not_trace_call_with_invalid_basic_subcall_transaction() {
init_log();
let temp = RandomTempPath::new();
let mut state = get_temp_state_in(temp.as_path());
let mut info = EnvInfo::default();
info.gas_limit = x!(1_000_000);
let engine = TestEngine::new(5, Factory::default());
let t = Transaction {
nonce: x!(0),
gas_price: x!(0),
gas: x!(100_000),
action: Action::Call(x!(0xa)),
value: x!(100),
data: vec![],
}.sign(&"".sha3());
state.init_code(&x!(0xa), FromHex::from_hex("600060006000600060ff600b6000f1").unwrap()); // not enough funds.
state.add_balance(t.sender().as_ref().unwrap(), &x!(100));
let result = state.apply(&info, &engine, &t, true).unwrap();
let expected_trace = Some(Trace {
depth: 0,
action: TraceAction::Call(TraceCall {
from: x!("9cce34f7ab185c7aba1b7c8140d620b4bda941d6"),
to: x!(0xa),
value: x!(100),
gas: x!(79000),
input: vec![],
result: Some((x!(31761), vec![]))
}),
subs: vec![]
});
assert_eq!(result.trace, expected_trace);
}
#[test]
fn should_trace_failed_subcall_transaction() {
init_log();