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Older
let first = rest.into_iter().next().expect("We split off < `address.index`; Length is checked earlier; qed");
let t = SignedTransaction::new(first).expect(PROOF);
let original_state = if analytics.state_diffing { Some(state.clone()) } else { None };
let mut ret = Executive::new(&mut state, &env_info, &*self.engine, &self.factories.vm).transact(&t, options)?;
if let Some(original) = original_state {
ret.state_diff = Some(state.diff_from(original).map_err(ExecutionError::from)?)
}
Ok(ret)
fn mode(&self) -> IpcMode {
let r = self.mode.lock().clone().into();
trace!(target: "mode", "Asked for mode = {:?}. returning {:?}", &*self.mode.lock(), r);
r
}
fn disable(&self) {
self.set_mode(IpcMode::Off);
self.enabled.store(false, AtomicOrdering::Relaxed);
fn set_mode(&self, new_mode: IpcMode) {
trace!(target: "mode", "Client::set_mode({:?})", new_mode);
if !self.enabled.load(AtomicOrdering::Relaxed) {
return;
}
{
let mut mode = self.mode.lock();
*mode = new_mode.clone().into();
trace!(target: "mode", "Mode now {:?}", &*mode);
if let Some(ref mut f) = *self.on_mode_change.lock() {
trace!(target: "mode", "Making callback...");
f(&*mode)
IpcMode::Active => self.wake_up(),
IpcMode::Off => self.sleep(),
_ => {(*self.sleep_state.lock()).last_activity = Some(Instant::now()); }
}
}
fn best_block_header(&self) -> encoded::Header {
fn block_header(&self, id: BlockId) -> Option<::encoded::Header> {
let chain = self.chain.read();
Self::block_hash(&chain, id).and_then(|hash| chain.block_header_data(&hash))
fn block_number(&self, id: BlockId) -> Option<BlockNumber> {
match id {
BlockId::Number(number) => Some(number),
BlockId::Hash(ref hash) => self.chain.read().block_number(hash),
BlockId::Earliest => Some(0),
BlockId::Latest | BlockId::Pending => Some(self.chain.read().best_block_number()),
}
}
fn block_body(&self, id: BlockId) -> Option<encoded::Body> {
let chain = self.chain.read();
Self::block_hash(&chain, id).and_then(|hash| chain.block_body(&hash))
fn block(&self, id: BlockId) -> Option<encoded::Block> {
if let Some(block) = self.miner.pending_block() {
return Some(encoded::Block::new(block.rlp_bytes(Seal::Without)));
let chain = self.chain.read();
Self::block_hash(&chain, id).and_then(|hash| {
chain.block(&hash)
fn block_status(&self, id: BlockId) -> BlockStatus {
let chain = self.chain.read();
match Self::block_hash(&chain, id) {
Some(ref hash) if chain.is_known(hash) => BlockStatus::InChain,
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Some(hash) => self.block_queue.status(&hash).into(),
None => BlockStatus::Unknown
fn block_total_difficulty(&self, id: BlockId) -> Option<U256> {
if let BlockId::Pending = id {
if let Some(block) = self.miner.pending_block() {
return Some(*block.header.difficulty() + self.block_total_difficulty(BlockId::Latest).expect("blocks in chain have details; qed"));
let chain = self.chain.read();
Self::block_hash(&chain, id).and_then(|hash| chain.block_details(&hash)).map(|d| d.total_difficulty)
fn nonce(&self, address: &Address, id: BlockId) -> Option<U256> {
self.state_at(id).and_then(|s| s.nonce(address).ok())
fn storage_root(&self, address: &Address, id: BlockId) -> Option<H256> {
self.state_at(id).and_then(|s| s.storage_root(address).ok()).and_then(|x| x)
fn block_hash(&self, id: BlockId) -> Option<H256> {
let chain = self.chain.read();
Self::block_hash(&chain, id)
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}
fn code(&self, address: &Address, id: BlockId) -> Option<Option<Bytes>> {
self.state_at(id).and_then(|s| s.code(address).ok()).map(|c| c.map(|c| (&*c).clone()))
fn balance(&self, address: &Address, id: BlockId) -> Option<U256> {
self.state_at(id).and_then(|s| s.balance(address).ok())
fn storage_at(&self, address: &Address, position: &H256, id: BlockId) -> Option<H256> {
self.state_at(id).and_then(|s| s.storage_at(address, position).ok())
fn list_accounts(&self, id: BlockId, after: Option<&Address>, count: u64) -> Option<Vec<Address>> {
if !self.factories.trie.is_fat() {
trace!(target: "fatdb", "list_accounts: Not a fat DB");
return None;
}
let state = match self.state_at(id) {
Some(state) => state,
_ => return None,
};
let (root, db) = state.drop();
let trie = match self.factories.trie.readonly(db.as_hashdb(), &root) {
Ok(trie) => trie,
_ => {
trace!(target: "fatdb", "list_accounts: Couldn't open the DB");
return None;
}
};
Ok(iter) => iter,
_ => return None,
};
if let Some(after) = after {
if let Err(e) = iter.seek(after) {
trace!(target: "fatdb", "list_accounts: Couldn't seek the DB: {:?}", e);
}
}
let accounts = iter.filter_map(|item| {
item.ok().map(|(addr, _)| Address::from_slice(&addr))
Some(accounts)
}
fn list_storage(&self, id: BlockId, account: &Address, after: Option<&H256>, count: u64) -> Option<Vec<H256>> {
if !self.factories.trie.is_fat() {
trace!(target: "fatdb", "list_stroage: Not a fat DB");
return None;
}
let state = match self.state_at(id) {
Some(state) => state,
_ => return None,
};
let root = match state.storage_root(account) {
Ok(Some(root)) => root,
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_ => return None,
};
let (_, db) = state.drop();
let account_db = self.factories.accountdb.readonly(db.as_hashdb(), account.sha3());
let trie = match self.factories.trie.readonly(account_db.as_hashdb(), &root) {
Ok(trie) => trie,
_ => {
trace!(target: "fatdb", "list_storage: Couldn't open the DB");
return None;
}
};
let mut iter = match trie.iter() {
Ok(iter) => iter,
_ => return None,
};
if let Some(after) = after {
if let Err(e) = iter.seek(after) {
trace!(target: "fatdb", "list_accounts: Couldn't seek the DB: {:?}", e);
}
}
let keys = iter.filter_map(|item| {
item.ok().map(|(key, _)| H256::from_slice(&key))
}).take(count as usize).collect();
Some(keys)
}
fn transaction(&self, id: TransactionId) -> Option<LocalizedTransaction> {
self.transaction_address(id).and_then(|address| self.chain.read().transaction(&address))
fn transaction_block(&self, id: TransactionId) -> Option<H256> {
self.transaction_address(id).map(|addr| addr.block_hash)
}
fn uncle(&self, id: UncleId) -> Option<encoded::Header> {
self.block_body(id.block).and_then(|body| body.view().uncle_rlp_at(index))
.map(encoded::Header::new)
fn transaction_receipt(&self, id: TransactionId) -> Option<LocalizedReceipt> {
self.transaction_address(id)
.and_then(|address| chain.block_number(&address.block_hash).and_then(|block_number| {
let transaction = chain.block_body(&address.block_hash)
.and_then(|body| body.view().localized_transaction_at(&address.block_hash, block_number, address.index));
let previous_receipts = (0..address.index + 1)
.map(|index| {
let mut address = address.clone();
address.index = index;
chain.transaction_receipt(&address)
.collect();
match (transaction, previous_receipts) {
(Some(transaction), Some(previous_receipts)) => {
Some(transaction_receipt(transaction, previous_receipts))
},
_ => None,
}
}))
fn tree_route(&self, from: &H256, to: &H256) -> Option<TreeRoute> {
let chain = self.chain.read();
match chain.is_known(from) && chain.is_known(to) {
true => Some(chain.tree_route(from.clone(), to.clone())),
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false => None
}
fn find_uncles(&self, hash: &H256) -> Option<Vec<H256>> {
self.chain.read().find_uncle_hashes(hash, self.engine.maximum_uncle_age())
fn state_data(&self, hash: &H256) -> Option<Bytes> {
self.state_db.lock().journal_db().state(hash)
fn block_receipts(&self, hash: &H256) -> Option<Bytes> {
self.chain.read().block_receipts(hash).map(|receipts| ::rlp::encode(&receipts).to_vec())
fn import_block(&self, bytes: Bytes) -> Result<H256, BlockImportError> {
use verification::queue::kind::BlockLike;
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use verification::queue::kind::blocks::Unverified;
// create unverified block here so the `sha3` calculation can be cached.
let unverified = Unverified::new(bytes);
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if self.chain.read().is_known(&unverified.hash()) {
return Err(BlockImportError::Import(ImportError::AlreadyInChain));
if self.block_status(BlockId::Hash(unverified.parent_hash())) == BlockStatus::Unknown {
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return Err(BlockImportError::Block(BlockError::UnknownParent(unverified.parent_hash())));
Ok(self.block_queue.import(unverified)?)
fn import_block_with_receipts(&self, block_bytes: Bytes, receipts_bytes: Bytes) -> Result<H256, BlockImportError> {
{
// check block order
let header = BlockView::new(&block_bytes).header_view();
if self.chain.read().is_known(&header.hash()) {
return Err(BlockImportError::Import(ImportError::AlreadyInChain));
}
if self.block_status(BlockId::Hash(header.parent_hash())) == BlockStatus::Unknown {
return Err(BlockImportError::Block(BlockError::UnknownParent(header.parent_hash())));
}
}
self.import_old_block(block_bytes, receipts_bytes).map_err(Into::into)
}
fn chain_info(&self) -> BlockChainInfo {
let mut chain_info = self.chain.read().chain_info();
chain_info.pending_total_difficulty = chain_info.total_difficulty + self.block_queue.total_difficulty();
chain_info
fn additional_params(&self) -> BTreeMap<String, String> {
self.engine.additional_params().into_iter().collect()
}
fn blocks_with_bloom(&self, bloom: &H2048, from_block: BlockId, to_block: BlockId) -> Option<Vec<BlockNumber>> {
match (self.block_number(from_block), self.block_number(to_block)) {
(Some(from), Some(to)) => Some(self.chain.read().blocks_with_bloom(bloom, from, to)),
fn logs(&self, filter: Filter) -> Vec<LocalizedLogEntry> {
let blocks = filter.bloom_possibilities().iter()
.filter_map(|bloom| self.blocks_with_bloom(bloom, filter.from_block.clone(), filter.to_block.clone()))
.flat_map(|m| m)
// remove duplicate elements
.collect::<HashSet<u64>>()
.into_iter()
.collect::<Vec<u64>>();
self.chain.read().logs(blocks, |entry| filter.matches(entry), filter.limit)
fn filter_traces(&self, filter: TraceFilter) -> Option<Vec<LocalizedTrace>> {
let start = self.block_number(filter.range.start);
let end = self.block_number(filter.range.end);
match (start, end) {
(Some(s), Some(e)) => {
let filter = trace::Filter {
range: s as usize..e as usize,
from_address: From::from(filter.from_address),
to_address: From::from(filter.to_address),
};
let traces = self.tracedb.read().filter(&filter);
Some(traces)
},
_ => None,
}
}
fn trace(&self, trace: TraceId) -> Option<LocalizedTrace> {
let trace_address = trace.address;
self.transaction_address(trace.transaction)
.and_then(|tx_address| {
self.block_number(BlockId::Hash(tx_address.block_hash))
.and_then(|number| self.tracedb.read().trace(number, tx_address.index, trace_address))
fn transaction_traces(&self, transaction: TransactionId) -> Option<Vec<LocalizedTrace>> {
self.transaction_address(transaction)
.and_then(|tx_address| {
self.block_number(BlockId::Hash(tx_address.block_hash))
.and_then(|number| self.tracedb.read().transaction_traces(number, tx_address.index))
fn block_traces(&self, block: BlockId) -> Option<Vec<LocalizedTrace>> {
.and_then(|number| self.tracedb.read().block_traces(number))
fn last_hashes(&self) -> LastHashes {
(*self.build_last_hashes(self.chain.read().best_block_hash())).clone()
fn queue_transactions(&self, transactions: Vec<Bytes>, peer_id: usize) {
let queue_size = self.queue_transactions.load(AtomicOrdering::Relaxed);
trace!(target: "external_tx", "Queue size: {}", queue_size);
if queue_size > MAX_TX_QUEUE_SIZE {
debug!("Ignoring {} transactions: queue is full", transactions.len());
} else {
let len = transactions.len();
match self.io_channel.lock().send(ClientIoMessage::NewTransactions(transactions, peer_id)) {
Ok(_) => {
self.queue_transactions.fetch_add(len, AtomicOrdering::SeqCst);
}
Err(e) => {
debug!("Ignoring {} transactions: error queueing: {}", len, e);
}
}
}
}
fn ready_transactions(&self) -> Vec<PendingTransaction> {
let (number, timestamp) = {
let chain = self.chain.read();
(chain.best_block_number(), chain.best_block_timestamp())
};
self.miner.ready_transactions(number, timestamp)
fn queue_consensus_message(&self, message: Bytes) {
let channel = self.io_channel.lock().clone();
if let Err(e) = channel.send(ClientIoMessage::NewMessage(message)) {
debug!("Ignoring the message, error queueing: {}", e);
}
self.engine.signing_network_id(&self.latest_env_info())
}
fn block_extra_info(&self, id: BlockId) -> Option<BTreeMap<String, String>> {
.map(|header| self.engine.extra_info(&header.decode()))
fn uncle_extra_info(&self, id: UncleId) -> Option<BTreeMap<String, String>> {
.map(|header| self.engine.extra_info(&header.decode()))
fn pruning_info(&self) -> PruningInfo {
PruningInfo {
earliest_chain: self.chain.read().first_block_number().unwrap_or(1),
earliest_state: self.state_db.lock().journal_db().earliest_era().unwrap_or(0),
}
}
fn call_contract(&self, block_id: BlockId, address: Address, data: Bytes) -> Result<Bytes, String> {
let from = Address::default();
let transaction = Transaction {
nonce: self.latest_nonce(&from),
action: Action::Call(address),
gas: U256::from(50_000_000),
gas_price: U256::default(),
value: U256::default(),
data: data,
}.fake_sign(from);
self.call(&transaction, block_id, Default::default())
.map_err(|e| format!("{:?}", e))
.map(|executed| {
executed.output
})
}
fn transact_contract(&self, address: Address, data: Bytes) -> Result<TransactionImportResult, EthcoreError> {
let transaction = Transaction {
nonce: self.latest_nonce(&self.miner.author()),
action: Action::Call(address),
gas: self.miner.gas_floor_target(),
gas_price: self.miner.sensible_gas_price(),
value: U256::zero(),
data: data,
};
let network_id = self.engine.signing_network_id(&self.latest_env_info());
let signature = self.engine.sign(transaction.hash(network_id))?;
let signed = SignedTransaction::new(transaction.with_signature(signature, network_id))?;
self.miner.import_own_transaction(self, signed.into())
}
fn registrar_address(&self) -> Option<Address> {
self.registrar.lock().as_ref().map(|r| r.address.clone())
}
fn registry_address(&self, name: String) -> Option<Address> {
self.registrar.lock().as_ref()
.and_then(|r| r.get_address(&(name.as_bytes().sha3()), "A").ok())
.and_then(|a| if a.is_zero() { None } else { Some(a) })
}
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impl MiningBlockChainClient for Client {
fn latest_schedule(&self) -> Schedule {
fn prepare_open_block(&self, author: Address, gas_range_target: (U256, U256), extra_data: Bytes) -> OpenBlock {
let engine = &*self.engine;
let chain = self.chain.read();
let h = chain.best_block_hash();
self.factories.clone(),
false, // TODO: this will need to be parameterised once we want to do immediate mining insertion.
self.state_db.lock().boxed_clone_canon(&h),
&chain.block_header(&h).expect("h is best block hash: so its header must exist: qed"),
).expect("OpenBlock::new only fails if parent state root invalid; state root of best block's header is never invalid; qed");
.into_iter()
.take(engine.maximum_uncle_count())
.foreach(|h| {
open_block.push_uncle(h).expect("pushing maximum_uncle_count;
open_block was just created;
push_uncle is not ok only if more than maximum_uncle_count is pushed;
so all push_uncle are Ok;
qed");
&self.factories.vm
fn broadcast_proposal_block(&self, block: SealedBlock) {
self.notify(|notify| {
notify.new_blocks(
vec![],
vec![],
vec![],
vec![],
vec![],
vec![block.rlp_bytes()],
0,
);
});
}
fn import_sealed_block(&self, block: SealedBlock) -> ImportResult {
let h = block.header().hash();
let start = precise_time_ns();
let route = {
// scope for self.import_lock
let _import_lock = self.import_lock.lock();
let _timer = PerfTimer::new("import_sealed_block");
let number = block.header().number();
let block_data = block.rlp_bytes();
let route = self.commit_block(block, &h, &block_data);
trace!(target: "client", "Imported sealed block #{} ({})", number, h);
self.state_db.lock().sync_cache(&route.enacted, &route.retracted, false);
route
};
let (enacted, retracted) = self.calculate_enacted_retracted(&[route]);
self.miner.chain_new_blocks(self, &[h.clone()], &[], &enacted, &retracted);
self.notify(|notify| {
notify.new_blocks(
vec![h.clone()],
vec![],
enacted.clone(),
retracted.clone(),
vec![h.clone()],
precise_time_ns() - start,
);
});
self.db.read().flush().expect("DB flush failed.");
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impl EngineClient for Client {
fn update_sealing(&self) {
self.miner.update_sealing(self)
}
fn submit_seal(&self, block_hash: H256, seal: Vec<Bytes>) {
if self.miner.submit_seal(self, block_hash, seal).is_err() {
warn!(target: "poa", "Wrong internal seal submission!")
}
}
fn broadcast_consensus_message(&self, message: Bytes) {
self.notify(|notify| notify.broadcast(message.clone()));
}
}
impl MayPanic for Client {
fn on_panic<F>(&self, closure: F) where F: OnPanicListener {
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self.panic_handler.on_panic(closure);
}
}
impl ::client::ProvingBlockChainClient for Client {
fn prove_storage(&self, key1: H256, key2: H256, from_level: u32, id: BlockId) -> Vec<Bytes> {
self.state_at(id)
.and_then(move |state| state.prove_storage(key1, key2, from_level).ok())
.unwrap_or_else(Vec::new)
fn prove_account(&self, key1: H256, from_level: u32, id: BlockId) -> Vec<Bytes> {
self.state_at(id)
.and_then(move |state| state.prove_account(key1, from_level).ok())
.unwrap_or_else(Vec::new)
fn code_by_hash(&self, account_key: H256, id: BlockId) -> Bytes {
self.state_at(id)
.and_then(move |state| state.code_by_address_hash(account_key).ok())
.and_then(|x| x)
.unwrap_or_else(Vec::new)
fn prove_transaction(&self, transaction: SignedTransaction, id: BlockId) -> Option<Vec<DBValue>> {
let (state, env_info) = match (self.state_at(id), self.env_info(id)) {
(Some(s), Some(e)) => (s, e),
_ => return None,
};
let mut jdb = self.state_db.lock().journal_db().boxed_clone();
let backend = state::backend::Proving::new(jdb.as_hashdb_mut());
let mut state = state.replace_backend(backend);
let options = TransactOptions { tracing: false, vm_tracing: false, check_nonce: false };
let res = Executive::new(&mut state, &env_info, &*self.engine, &self.factories.vm).transact(&transaction, options);
match res {
Err(ExecutionError::Internal(_)) => return None,
_ => return Some(state.drop().1.extract_proof()),
}
}
impl Drop for Client {
fn drop(&mut self) {
self.engine.stop();
}
}
/// Returns `LocalizedReceipt` given `LocalizedTransaction`
/// and a vector of receipts from given block up to transaction index.
fn transaction_receipt(mut tx: LocalizedTransaction, mut receipts: Vec<Receipt>) -> LocalizedReceipt {
assert_eq!(receipts.len(), tx.transaction_index + 1, "All previous receipts are provided.");
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let receipt = receipts.pop().expect("Current receipt is provided; qed");
let prior_gas_used = match tx.transaction_index {
0 => 0.into(),
i => receipts.get(i - 1).expect("All previous receipts are provided; qed").gas_used,
};
let no_of_logs = receipts.into_iter().map(|receipt| receipt.logs.len()).sum::<usize>();
let transaction_hash = tx.hash();
let block_hash = tx.block_hash;
let block_number = tx.block_number;
let transaction_index = tx.transaction_index;
LocalizedReceipt {
transaction_hash: transaction_hash,
transaction_index: transaction_index,
block_hash: block_hash,
block_number:block_number,
cumulative_gas_used: receipt.gas_used,
gas_used: receipt.gas_used - prior_gas_used,
contract_address: match tx.action {
Action::Call(_) => None,
Action::Create => Some(contract_address(&sender, &tx.nonce))
},
logs: receipt.logs.into_iter().enumerate().map(|(i, log)| LocalizedLogEntry {
entry: log,
block_hash: block_hash,
block_number: block_number,
transaction_hash: transaction_hash,
transaction_index: transaction_index,
transaction_log_index: i,
log_index: no_of_logs + i,
}).collect(),
log_bloom: receipt.log_bloom,
state_root: receipt.state_root,
}
}
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#[cfg(test)]
mod tests {
#[test]
fn should_not_cache_details_before_commit() {
use client::BlockChainClient;
use tests::helpers::*;
use std::thread;
use std::time::Duration;
use std::sync::Arc;
use std::sync::atomic::{AtomicBool, Ordering};
use util::kvdb::DBTransaction;
let client = generate_dummy_client(0);
let genesis = client.chain_info().best_block_hash;
let (new_hash, new_block) = get_good_dummy_block_hash();
let go = {
// Separate thread uncommited transaction
let go = Arc::new(AtomicBool::new(false));
let go_thread = go.clone();
let another_client = client.reference().clone();
thread::spawn(move || {
let mut batch = DBTransaction::new();
another_client.chain.read().insert_block(&mut batch, &new_block, Vec::new());
go_thread.store(true, Ordering::SeqCst);
});
go
};
while !go.load(Ordering::SeqCst) { thread::park_timeout(Duration::from_millis(5)); }
assert!(client.tree_route(&genesis, &new_hash).is_none());
}
#[test]
fn should_return_correct_log_index() {
use super::transaction_receipt;
use ethkey::KeyPair;
use log_entry::{LogEntry, LocalizedLogEntry};
use receipt::{Receipt, LocalizedReceipt};
use transaction::{Transaction, LocalizedTransaction, Action};
use util::Hashable;
// given
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let key = KeyPair::from_secret_slice(&"test".sha3()).unwrap();
let secret = key.secret();
let block_number = 1;
let block_hash = 5.into();
let state_root = Some(99.into());
let gas_used = 10.into();
let raw_tx = Transaction {
nonce: 0.into(),
gas_price: 0.into(),
gas: 21000.into(),
action: Action::Call(10.into()),
value: 0.into(),
data: vec![],
};
let tx1 = raw_tx.clone().sign(secret, None);
let transaction = LocalizedTransaction {
block_number: block_number,
block_hash: block_hash,
transaction_index: 1,
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};
let logs = vec![LogEntry {
address: 5.into(),
topics: vec![],
data: vec![],
}, LogEntry {
address: 15.into(),
topics: vec![],
data: vec![],
}];
let receipts = vec![Receipt {
state_root: state_root,
gas_used: 5.into(),
log_bloom: Default::default(),
logs: vec![logs[0].clone()],
}, Receipt {
state_root: state_root,
gas_used: gas_used,
log_bloom: Default::default(),
logs: logs.clone(),
}];
// when
let receipt = transaction_receipt(transaction, receipts);
// then
assert_eq!(receipt, LocalizedReceipt {
transaction_hash: tx1.hash(),
transaction_index: 1,
block_hash: block_hash,
block_number: block_number,
cumulative_gas_used: gas_used,
gas_used: gas_used - 5.into(),
contract_address: None,
logs: vec![LocalizedLogEntry {
entry: logs[0].clone(),
block_hash: block_hash,
block_number: block_number,
transaction_hash: tx1.hash(),
transaction_index: 1,
transaction_log_index: 0,
log_index: 1,
}, LocalizedLogEntry {
entry: logs[1].clone(),
block_hash: block_hash,
block_number: block_number,
transaction_hash: tx1.hash(),
transaction_index: 1,
transaction_log_index: 1,
log_index: 2,
}],
log_bloom: Default::default(),
state_root: state_root,
});
}