1240 lines
34 KiB
Rust
1240 lines
34 KiB
Rust
// Copyright 2015, 2016 Ethcore (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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use common::*;
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use engine::Engine;
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use executive::{Executive, TransactOptions};
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use account_db::*;
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#[cfg(test)]
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#[cfg(feature = "json-tests")]
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use pod_account::*;
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#[cfg(test)]
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#[cfg(feature = "json-tests")]
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use pod_state::PodState;
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//use state_diff::*; // TODO: uncomment once to_pod() works correctly.
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/// Used to return information about an `State::apply` operation.
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pub struct ApplyOutcome {
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/// The receipt for the applied transaction.
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pub receipt: Receipt,
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/// The trace for the applied transaction, if None if tracing is disabled.
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pub trace: Option<Trace>,
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}
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/// Result type for the execution ("application") of a transaction.
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pub type ApplyResult = Result<ApplyOutcome, Error>;
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/// Representation of the entire state of all accounts in the system.
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pub struct State {
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db: Box<JournalDB>,
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root: H256,
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cache: RefCell<HashMap<Address, Option<Account>>>,
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snapshots: RefCell<Vec<HashMap<Address, Option<Option<Account>>>>>,
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account_start_nonce: U256,
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}
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impl State {
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/// Creates new state with empty state root
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#[cfg(test)]
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pub fn new(mut db: Box<JournalDB>, account_start_nonce: U256) -> State {
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let mut root = H256::new();
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{
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// init trie and reset root too null
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let _ = SecTrieDBMut::new(db.as_hashdb_mut(), &mut root);
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}
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State {
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db: db,
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root: root,
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cache: RefCell::new(HashMap::new()),
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snapshots: RefCell::new(Vec::new()),
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account_start_nonce: account_start_nonce,
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}
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}
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/// Creates new state with existing state root
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pub fn from_existing(db: Box<JournalDB>, root: H256, account_start_nonce: U256) -> State {
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{
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// trie should panic! if root does not exist
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let _ = SecTrieDB::new(db.as_hashdb(), &root);
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}
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State {
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db: db,
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root: root,
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cache: RefCell::new(HashMap::new()),
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snapshots: RefCell::new(Vec::new()),
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account_start_nonce: account_start_nonce,
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}
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}
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/// Create a recoverable snaphot of this state
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pub fn snapshot(&mut self) {
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self.snapshots.borrow_mut().push(HashMap::new());
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}
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/// Merge last snapshot with previous
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pub fn clear_snapshot(&mut self) {
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// merge with previous snapshot
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let last = self.snapshots.borrow_mut().pop();
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if let Some(mut snapshot) = last {
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if let Some(ref mut prev) = self.snapshots.borrow_mut().last_mut() {
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for (k, v) in snapshot.drain() {
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prev.entry(k).or_insert(v);
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}
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}
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}
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}
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/// Revert to snapshot
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pub fn revert_snapshot(&mut self) {
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if let Some(mut snapshot) = self.snapshots.borrow_mut().pop() {
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for (k, v) in snapshot.drain() {
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match v {
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Some(v) => {
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self.cache.borrow_mut().insert(k, v);
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},
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None => {
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self.cache.borrow_mut().remove(&k);
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}
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}
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}
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}
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}
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fn insert_cache(&self, address: &Address, account: Option<Account>) {
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if let Some(ref mut snapshot) = self.snapshots.borrow_mut().last_mut() {
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if !snapshot.contains_key(&address) {
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snapshot.insert(address.clone(), self.cache.borrow_mut().insert(address.clone(), account));
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return;
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}
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}
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self.cache.borrow_mut().insert(address.clone(), account);
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}
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fn note_cache(&self, address: &Address) {
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if let Some(ref mut snapshot) = self.snapshots.borrow_mut().last_mut() {
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if !snapshot.contains_key(&address) {
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snapshot.insert(address.clone(), self.cache.borrow().get(address).cloned());
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}
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}
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}
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/// Destroy the current object and return root and database.
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pub fn drop(self) -> (H256, Box<JournalDB>) {
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(self.root, self.db)
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}
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/// Return reference to root
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pub fn root(&self) -> &H256 {
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&self.root
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}
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/// Create a new contract at address `contract`. If there is already an account at the address
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/// it will have its code reset, ready for `init_code()`.
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pub fn new_contract(&mut self, contract: &Address, balance: U256) {
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self.insert_cache(&contract, Some(Account::new_contract(balance, self.account_start_nonce)));
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}
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/// Remove an existing account.
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pub fn kill_account(&mut self, account: &Address) {
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self.insert_cache(account, None);
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}
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/// Determine whether an account exists.
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pub fn exists(&self, a: &Address) -> bool {
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self.cache.borrow().get(&a).unwrap_or(&None).is_some() || SecTrieDB::new(self.db.as_hashdb(), &self.root).contains(&a)
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}
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/// Get the balance of account `a`.
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pub fn balance(&self, a: &Address) -> U256 {
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self.get(a, false).as_ref().map_or(U256::zero(), |account| *account.balance())
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}
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/// Get the nonce of account `a`.
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pub fn nonce(&self, a: &Address) -> U256 {
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self.get(a, false).as_ref().map_or(U256::zero(), |account| *account.nonce())
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}
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/// Mutate storage of account `address` so that it is `value` for `key`.
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pub fn storage_at(&self, address: &Address, key: &H256) -> H256 {
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self.get(address, false).as_ref().map_or(H256::new(), |a|a.storage_at(&AccountDB::new(self.db.as_hashdb(), address), key))
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}
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/// Mutate storage of account `a` so that it is `value` for `key`.
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pub fn code(&self, a: &Address) -> Option<Bytes> {
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self.get(a, true).as_ref().map_or(None, |a|a.code().map(|x|x.to_vec()))
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}
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/// Add `incr` to the balance of account `a`.
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pub fn add_balance(&mut self, a: &Address, incr: &U256) {
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let old = self.balance(a);
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self.require(a, false).add_balance(incr);
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trace!("state: add_balance({}, {}): {} -> {}\n", a, incr, old, self.balance(a));
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}
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/// Subtract `decr` from the balance of account `a`.
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pub fn sub_balance(&mut self, a: &Address, decr: &U256) {
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let old = self.balance(a);
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self.require(a, false).sub_balance(decr);
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trace!("state: sub_balance({}, {}): {} -> {}\n", a, decr, old, self.balance(a));
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}
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/// Subtracts `by` from the balance of `from` and adds it to that of `to`.
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pub fn transfer_balance(&mut self, from: &Address, to: &Address, by: &U256) {
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self.sub_balance(from, by);
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self.add_balance(to, by);
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}
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/// Increment the nonce of account `a` by 1.
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pub fn inc_nonce(&mut self, a: &Address) {
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self.require(a, false).inc_nonce()
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}
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/// Mutate storage of account `a` so that it is `value` for `key`.
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pub fn set_storage(&mut self, a: &Address, key: H256, value: H256) {
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self.require(a, false).set_storage(key, value)
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}
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/// Initialise the code of account `a` so that it is `value` for `key`.
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/// NOTE: Account should have been created with `new_contract`.
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pub fn init_code(&mut self, a: &Address, code: Bytes) {
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self.require_or_from(a, true, || Account::new_contract(x!(0), self.account_start_nonce), |_|{}).init_code(code);
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}
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/// Execute a given transaction.
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/// This will change the state accordingly.
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pub fn apply(&mut self, env_info: &EnvInfo, engine: &Engine, t: &SignedTransaction, tracing: bool) -> ApplyResult {
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// let old = self.to_pod();
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let options = TransactOptions { tracing: tracing, check_nonce: true };
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let e = try!(Executive::new(self, env_info, engine).transact(t, options));
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// TODO uncomment once to_pod() works correctly.
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// trace!("Applied transaction. Diff:\n{}\n", StateDiff::diff_pod(&old, &self.to_pod()));
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self.commit();
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let receipt = Receipt::new(self.root().clone(), e.cumulative_gas_used, e.logs);
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// trace!("Transaction receipt: {:?}", receipt);
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Ok(ApplyOutcome{receipt: receipt, trace: e.trace})
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}
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/// Commit accounts to SecTrieDBMut. This is similar to cpp-ethereum's dev::eth::commit.
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/// `accounts` is mutable because we may need to commit the code or storage and record that.
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#[cfg_attr(feature="dev", allow(match_ref_pats))]
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pub fn commit_into(db: &mut HashDB, root: &mut H256, accounts: &mut HashMap<Address, Option<Account>>) {
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// first, commit the sub trees.
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// TODO: is this necessary or can we dispense with the `ref mut a` for just `a`?
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for (address, ref mut a) in accounts.iter_mut() {
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match a {
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&mut&mut Some(ref mut account) => {
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let mut account_db = AccountDBMut::new(db, address);
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account.commit_storage(&mut account_db);
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account.commit_code(&mut account_db);
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}
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&mut&mut None => {}
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}
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}
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{
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let mut trie = SecTrieDBMut::from_existing(db, root);
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for (address, ref a) in accounts.iter() {
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match **a {
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Some(ref account) => trie.insert(address, &account.rlp()),
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None => trie.remove(address),
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}
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}
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}
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}
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/// Commits our cached account changes into the trie.
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pub fn commit(&mut self) {
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assert!(self.snapshots.borrow().is_empty());
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Self::commit_into(self.db.as_hashdb_mut(), &mut self.root, self.cache.borrow_mut().deref_mut());
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}
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#[cfg(test)]
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#[cfg(feature = "json-tests")]
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/// Populate the state from `accounts`.
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pub fn populate_from(&mut self, accounts: PodState) {
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assert!(self.snapshots.borrow().is_empty());
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for (add, acc) in accounts.drain().into_iter() {
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self.cache.borrow_mut().insert(add, Some(Account::from_pod(acc)));
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}
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}
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#[cfg(test)]
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#[cfg(feature = "json-tests")]
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/// Populate a PodAccount map from this state.
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pub fn to_pod(&self) -> PodState {
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assert!(self.snapshots.borrow().is_empty());
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// TODO: handle database rather than just the cache.
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PodState::from(self.cache.borrow().iter().fold(BTreeMap::new(), |mut m, (add, opt)| {
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if let Some(ref acc) = *opt {
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m.insert(add.clone(), PodAccount::from_account(acc));
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}
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m
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}))
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}
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/// Pull account `a` in our cache from the trie DB and return it.
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/// `require_code` requires that the code be cached, too.
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fn get<'a>(&'a self, a: &Address, require_code: bool) -> &'a Option<Account> {
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let have_key = self.cache.borrow().contains_key(a);
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if !have_key {
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self.insert_cache(a, SecTrieDB::new(self.db.as_hashdb(), &self.root).get(&a).map(Account::from_rlp))
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}
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if require_code {
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if let Some(ref mut account) = self.cache.borrow_mut().get_mut(a).unwrap().as_mut() {
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account.cache_code(&AccountDB::new(self.db.as_hashdb(), a));
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}
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}
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unsafe { ::std::mem::transmute(self.cache.borrow().get(a).unwrap()) }
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}
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/// Pull account `a` in our cache from the trie DB. `require_code` requires that the code be cached, too.
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fn require<'a>(&'a self, a: &Address, require_code: bool) -> &'a mut Account {
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self.require_or_from(a, require_code, || Account::new_basic(U256::from(0u8), self.account_start_nonce), |_|{})
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}
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/// Pull account `a` in our cache from the trie DB. `require_code` requires that the code be cached, too.
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/// If it doesn't exist, make account equal the evaluation of `default`.
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fn require_or_from<'a, F: FnOnce() -> Account, G: FnOnce(&mut Account)>(&self, a: &Address, require_code: bool, default: F, not_default: G) -> &'a mut Account {
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let have_key = self.cache.borrow().contains_key(a);
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if !have_key {
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self.insert_cache(a, SecTrieDB::new(self.db.as_hashdb(), &self.root).get(&a).map(Account::from_rlp))
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} else {
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self.note_cache(a);
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}
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let preexists = self.cache.borrow().get(a).unwrap().is_none();
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if preexists {
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self.cache.borrow_mut().insert(a.clone(), Some(default()));
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} else {
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not_default(self.cache.borrow_mut().get_mut(a).unwrap().as_mut().unwrap());
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}
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unsafe { ::std::mem::transmute(self.cache.borrow_mut().get_mut(a).unwrap().as_mut().map(|account| {
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if require_code {
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account.cache_code(&AccountDB::new(self.db.as_hashdb(), a));
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}
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account
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}).unwrap()) }
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}
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}
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impl fmt::Debug for State {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{:?}", self.cache.borrow())
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}
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}
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impl Clone for State {
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fn clone(&self) -> State {
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State {
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db: self.db.boxed_clone(),
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root: self.root.clone(),
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cache: RefCell::new(self.cache.borrow().clone()),
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snapshots: RefCell::new(self.snapshots.borrow().clone()),
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account_start_nonce: self.account_start_nonce.clone(),
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use util::common::*;
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use util::trie::*;
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use util::rlp::*;
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use account::*;
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use tests::helpers::*;
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use devtools::*;
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use evm::factory::*;
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use env_info::*;
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use spec::*;
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use transaction::*;
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use util::log::init_log;
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use trace::*;
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#[test]
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fn should_apply_create_transaction() {
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init_log();
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let temp = RandomTempPath::new();
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let mut state = get_temp_state_in(temp.as_path());
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let mut info = EnvInfo::default();
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info.gas_limit = x!(1_000_000);
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let engine = TestEngine::new(5, Factory::default());
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let t = Transaction {
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nonce: x!(0),
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gas_price: x!(0),
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gas: x!(100_000),
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action: Action::Create,
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value: x!(100),
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data: FromHex::from_hex("601080600c6000396000f3006000355415600957005b60203560003555").unwrap(),
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}.sign(&"".sha3());
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state.add_balance(t.sender().as_ref().unwrap(), &x!(100));
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let result = state.apply(&info, &engine, &t, true).unwrap();
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let expected_trace = Some(Trace {
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depth: 0,
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action: TraceAction::Create(TraceCreate {
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from: x!("9cce34f7ab185c7aba1b7c8140d620b4bda941d6"),
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value: x!(100),
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gas: x!(77412),
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init: vec![96, 16, 128, 96, 12, 96, 0, 57, 96, 0, 243, 0, 96, 0, 53, 84, 21, 96, 9, 87, 0, 91, 96, 32, 53, 96, 0, 53, 85],
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result: Some((x!(3224), x!("8988167e088c87cd314df6d3c2b83da5acb93ace"), vec![96, 0, 53, 84, 21, 96, 9, 87, 0, 91, 96, 32, 53, 96, 0, 53]))
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}),
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subs: vec![]
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});
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assert_eq!(result.trace, expected_trace);
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}
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#[test]
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fn should_work_when_cloned() {
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init_log();
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let a = Address::zero();
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let temp = RandomTempPath::new();
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let mut state = {
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let mut state = get_temp_state_in(temp.as_path());
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assert_eq!(state.exists(&a), false);
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state.inc_nonce(&a);
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state.commit();
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state.clone()
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};
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state.inc_nonce(&a);
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state.commit();
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}
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#[test]
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fn should_trace_failed_create_transaction() {
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init_log();
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let temp = RandomTempPath::new();
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let mut state = get_temp_state_in(temp.as_path());
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let mut info = EnvInfo::default();
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info.gas_limit = x!(1_000_000);
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let engine = TestEngine::new(5, Factory::default());
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let t = Transaction {
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nonce: x!(0),
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gas_price: x!(0),
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gas: x!(100_000),
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action: Action::Create,
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value: x!(100),
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data: FromHex::from_hex("5b600056").unwrap(),
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}.sign(&"".sha3());
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state.add_balance(t.sender().as_ref().unwrap(), &x!(100));
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let result = state.apply(&info, &engine, &t, true).unwrap();
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let expected_trace = Some(Trace {
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depth: 0,
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action: TraceAction::Create(TraceCreate {
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from: x!("9cce34f7ab185c7aba1b7c8140d620b4bda941d6"),
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value: x!(100),
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gas: x!(78792),
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init: vec![91, 96, 0, 86],
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result: None
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}),
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subs: vec![]
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});
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assert_eq!(result.trace, expected_trace);
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}
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#[test]
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fn should_trace_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.init_code(&x!(0xa), FromHex::from_hex("6000").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!(3), vec![]))
|
|
}),
|
|
subs: vec![]
|
|
});
|
|
|
|
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();
|
|
|
|
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 = Spec::new_test().engine;
|
|
|
|
let t = Transaction {
|
|
nonce: x!(0),
|
|
gas_price: x!(0),
|
|
gas: x!(100_000),
|
|
action: Action::Call(x!(0x1)),
|
|
value: x!(0),
|
|
data: vec![],
|
|
}.sign(&"".sha3());
|
|
|
|
let result = state.apply(&info, engine.deref(), &t, true).unwrap();
|
|
|
|
assert_eq!(result.trace, None);
|
|
}
|
|
|
|
#[test]
|
|
fn should_not_trace_subcall_transaction_to_builtin() {
|
|
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 = Spec::new_test().engine;
|
|
|
|
let t = Transaction {
|
|
nonce: x!(0),
|
|
gas_price: x!(0),
|
|
gas: x!(100_000),
|
|
action: Action::Call(x!(0xa)),
|
|
value: x!(0),
|
|
data: vec![],
|
|
}.sign(&"".sha3());
|
|
|
|
state.init_code(&x!(0xa), FromHex::from_hex("600060006000600060006001610be0f1").unwrap());
|
|
let result = state.apply(&info, engine.deref(), &t, true).unwrap();
|
|
|
|
let expected_trace = Some(Trace {
|
|
depth: 0,
|
|
action: TraceAction::Call(TraceCall {
|
|
from: x!("9cce34f7ab185c7aba1b7c8140d620b4bda941d6"),
|
|
to: x!(0xa),
|
|
value: x!(0),
|
|
gas: x!(79000),
|
|
input: vec![],
|
|
result: Some((x!(28061), vec![]))
|
|
}),
|
|
subs: vec![]
|
|
});
|
|
assert_eq!(result.trace, expected_trace);
|
|
}
|
|
|
|
#[test]
|
|
fn should_not_trace_callcode() {
|
|
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 = Spec::new_test().engine;
|
|
|
|
let t = Transaction {
|
|
nonce: x!(0),
|
|
gas_price: x!(0),
|
|
gas: x!(100_000),
|
|
action: Action::Call(x!(0xa)),
|
|
value: x!(0),
|
|
data: vec![],
|
|
}.sign(&"".sha3());
|
|
|
|
state.init_code(&x!(0xa), FromHex::from_hex("60006000600060006000600b611000f2").unwrap());
|
|
state.init_code(&x!(0xb), FromHex::from_hex("6000").unwrap());
|
|
let result = state.apply(&info, engine.deref(), &t, true).unwrap();
|
|
|
|
let expected_trace = Some(Trace {
|
|
depth: 0,
|
|
action: TraceAction::Call(TraceCall {
|
|
from: x!("9cce34f7ab185c7aba1b7c8140d620b4bda941d6"),
|
|
to: x!(0xa),
|
|
value: x!(0),
|
|
gas: x!(79000),
|
|
input: vec![],
|
|
result: Some((x!(64), vec![]))
|
|
}),
|
|
subs: vec![]
|
|
});
|
|
assert_eq!(result.trace, expected_trace);
|
|
}
|
|
|
|
#[test]
|
|
fn should_not_trace_delegatecall() {
|
|
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);
|
|
info.number = 0x789b0;
|
|
let engine = Spec::new_test().engine;
|
|
|
|
println!("schedule.have_delegate_call: {:?}", engine.schedule(&info).have_delegate_call);
|
|
|
|
let t = Transaction {
|
|
nonce: x!(0),
|
|
gas_price: x!(0),
|
|
gas: x!(100_000),
|
|
action: Action::Call(x!(0xa)),
|
|
value: x!(0),
|
|
data: vec![],
|
|
}.sign(&"".sha3());
|
|
|
|
state.init_code(&x!(0xa), FromHex::from_hex("6000600060006000600b618000f4").unwrap());
|
|
state.init_code(&x!(0xb), FromHex::from_hex("6000").unwrap());
|
|
let result = state.apply(&info, engine.deref(), &t, true).unwrap();
|
|
|
|
let expected_trace = Some(Trace {
|
|
depth: 0,
|
|
action: TraceAction::Call(TraceCall {
|
|
from: x!("9cce34f7ab185c7aba1b7c8140d620b4bda941d6"),
|
|
to: x!(0xa),
|
|
value: x!(0),
|
|
gas: x!(79000),
|
|
input: vec![],
|
|
result: Some((x!(61), vec![]))
|
|
}),
|
|
subs: vec![]
|
|
});
|
|
assert_eq!(result.trace, expected_trace);
|
|
}
|
|
|
|
#[test]
|
|
fn should_trace_failed_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.init_code(&x!(0xa), FromHex::from_hex("5b600056").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: None
|
|
}),
|
|
subs: vec![]
|
|
});
|
|
|
|
println!("trace: {:?}", result.trace);
|
|
|
|
assert_eq!(result.trace, expected_trace);
|
|
}
|
|
|
|
#[test]
|
|
fn should_trace_call_with_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("60006000600060006000600b602b5a03f1").unwrap());
|
|
state.init_code(&x!(0xb), FromHex::from_hex("6000").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!(69), vec![]))
|
|
}),
|
|
subs: vec![Trace {
|
|
depth: 1,
|
|
action: TraceAction::Call(TraceCall {
|
|
from: x!(0xa),
|
|
to: x!(0xb),
|
|
value: x!(0),
|
|
gas: x!(78934),
|
|
input: vec![],
|
|
result: Some((x!(3), vec![]))
|
|
}),
|
|
subs: vec![]
|
|
}]
|
|
});
|
|
|
|
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!(31761), 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();
|
|
|
|
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![],//600480600b6000396000f35b600056
|
|
}.sign(&"".sha3());
|
|
|
|
state.init_code(&x!(0xa), FromHex::from_hex("60006000600060006000600b602b5a03f1").unwrap());
|
|
state.init_code(&x!(0xb), FromHex::from_hex("5b600056").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!(79000), vec![]))
|
|
}),
|
|
subs: vec![Trace {
|
|
depth: 1,
|
|
action: TraceAction::Call(TraceCall {
|
|
from: x!(0xa),
|
|
to: x!(0xb),
|
|
value: x!(0),
|
|
gas: x!(78934),
|
|
input: vec![],
|
|
result: None
|
|
}),
|
|
subs: vec![]
|
|
}]
|
|
});
|
|
|
|
assert_eq!(result.trace, expected_trace);
|
|
}
|
|
|
|
#[test]
|
|
fn should_trace_call_with_subcall_with_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("60006000600060006000600b602b5a03f1").unwrap());
|
|
state.init_code(&x!(0xb), FromHex::from_hex("60006000600060006000600c602b5a03f1").unwrap());
|
|
state.init_code(&x!(0xc), FromHex::from_hex("6000").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!(135), vec![]))
|
|
}),
|
|
subs: vec![Trace {
|
|
depth: 1,
|
|
action: TraceAction::Call(TraceCall {
|
|
from: x!(0xa),
|
|
to: x!(0xb),
|
|
value: x!(0),
|
|
gas: x!(78934),
|
|
input: vec![],
|
|
result: Some((x!(69), vec![]))
|
|
}),
|
|
subs: vec![Trace {
|
|
depth: 2,
|
|
action: TraceAction::Call(TraceCall {
|
|
from: x!(0xb),
|
|
to: x!(0xc),
|
|
value: x!(0),
|
|
gas: x!(78868),
|
|
input: vec![],
|
|
result: Some((x!(3), vec![]))
|
|
}),
|
|
subs: vec![]
|
|
}]
|
|
}]
|
|
});
|
|
|
|
assert_eq!(result.trace, expected_trace);
|
|
}
|
|
|
|
#[test]
|
|
fn should_trace_failed_subcall_with_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![],//600480600b6000396000f35b600056
|
|
}.sign(&"".sha3());
|
|
|
|
state.init_code(&x!(0xa), FromHex::from_hex("60006000600060006000600b602b5a03f1").unwrap());
|
|
state.init_code(&x!(0xb), FromHex::from_hex("60006000600060006000600c602b5a03f1505b601256").unwrap());
|
|
state.init_code(&x!(0xc), FromHex::from_hex("6000").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!(79000), vec![]))
|
|
}),
|
|
subs: vec![Trace {
|
|
depth: 1,
|
|
action: TraceAction::Call(TraceCall {
|
|
from: x!(0xa),
|
|
to: x!(0xb),
|
|
value: x!(0),
|
|
gas: x!(78934),
|
|
input: vec![],
|
|
result: None
|
|
}),
|
|
subs: vec![Trace {
|
|
depth: 2,
|
|
action: TraceAction::Call(TraceCall {
|
|
from: x!(0xb),
|
|
to: x!(0xc),
|
|
value: x!(0),
|
|
gas: x!(78868),
|
|
input: vec![],
|
|
result: Some((x!(3), vec![])),
|
|
}),
|
|
subs: vec![]
|
|
}]
|
|
}]
|
|
});
|
|
|
|
assert_eq!(result.trace, expected_trace);
|
|
}
|
|
|
|
#[test]
|
|
fn code_from_database() {
|
|
let a = Address::zero();
|
|
let temp = RandomTempPath::new();
|
|
let (root, db) = {
|
|
let mut state = get_temp_state_in(temp.as_path());
|
|
state.require_or_from(&a, false, ||Account::new_contract(x!(42), x!(0)), |_|{});
|
|
state.init_code(&a, vec![1, 2, 3]);
|
|
assert_eq!(state.code(&a), Some([1u8, 2, 3].to_vec()));
|
|
state.commit();
|
|
assert_eq!(state.code(&a), Some([1u8, 2, 3].to_vec()));
|
|
state.drop()
|
|
};
|
|
|
|
let state = State::from_existing(db, root, U256::from(0u8));
|
|
assert_eq!(state.code(&a), Some([1u8, 2, 3].to_vec()));
|
|
}
|
|
|
|
#[test]
|
|
fn storage_at_from_database() {
|
|
let a = Address::zero();
|
|
let temp = RandomTempPath::new();
|
|
let (root, db) = {
|
|
let mut state = get_temp_state_in(temp.as_path());
|
|
state.set_storage(&a, H256::from(&U256::from(01u64)), H256::from(&U256::from(69u64)));
|
|
state.commit();
|
|
state.drop()
|
|
};
|
|
|
|
let s = State::from_existing(db, root, U256::from(0u8));
|
|
assert_eq!(s.storage_at(&a, &H256::from(&U256::from(01u64))), H256::from(&U256::from(69u64)));
|
|
}
|
|
|
|
#[test]
|
|
fn get_from_database() {
|
|
let a = Address::zero();
|
|
let temp = RandomTempPath::new();
|
|
let (root, db) = {
|
|
let mut state = get_temp_state_in(temp.as_path());
|
|
state.inc_nonce(&a);
|
|
state.add_balance(&a, &U256::from(69u64));
|
|
state.commit();
|
|
assert_eq!(state.balance(&a), U256::from(69u64));
|
|
state.drop()
|
|
};
|
|
|
|
let state = State::from_existing(db, root, U256::from(0u8));
|
|
assert_eq!(state.balance(&a), U256::from(69u64));
|
|
assert_eq!(state.nonce(&a), U256::from(1u64));
|
|
}
|
|
|
|
#[test]
|
|
fn remove() {
|
|
let a = Address::zero();
|
|
let mut state_result = get_temp_state();
|
|
let mut state = state_result.reference_mut();
|
|
assert_eq!(state.exists(&a), false);
|
|
state.inc_nonce(&a);
|
|
assert_eq!(state.exists(&a), true);
|
|
assert_eq!(state.nonce(&a), U256::from(1u64));
|
|
state.kill_account(&a);
|
|
assert_eq!(state.exists(&a), false);
|
|
assert_eq!(state.nonce(&a), U256::from(0u64));
|
|
}
|
|
|
|
#[test]
|
|
fn remove_from_database() {
|
|
let a = Address::zero();
|
|
let temp = RandomTempPath::new();
|
|
let (root, db) = {
|
|
let mut state = get_temp_state_in(temp.as_path());
|
|
state.inc_nonce(&a);
|
|
state.commit();
|
|
assert_eq!(state.exists(&a), true);
|
|
assert_eq!(state.nonce(&a), U256::from(1u64));
|
|
state.drop()
|
|
};
|
|
|
|
let (root, db) = {
|
|
let mut state = State::from_existing(db, root, U256::from(0u8));
|
|
assert_eq!(state.exists(&a), true);
|
|
assert_eq!(state.nonce(&a), U256::from(1u64));
|
|
state.kill_account(&a);
|
|
state.commit();
|
|
assert_eq!(state.exists(&a), false);
|
|
assert_eq!(state.nonce(&a), U256::from(0u64));
|
|
state.drop()
|
|
};
|
|
|
|
let state = State::from_existing(db, root, U256::from(0u8));
|
|
assert_eq!(state.exists(&a), false);
|
|
assert_eq!(state.nonce(&a), U256::from(0u64));
|
|
}
|
|
|
|
#[test]
|
|
fn alter_balance() {
|
|
let mut state_result = get_temp_state();
|
|
let mut state = state_result.reference_mut();
|
|
let a = Address::zero();
|
|
let b = address_from_u64(1u64);
|
|
state.add_balance(&a, &U256::from(69u64));
|
|
assert_eq!(state.balance(&a), U256::from(69u64));
|
|
state.commit();
|
|
assert_eq!(state.balance(&a), U256::from(69u64));
|
|
state.sub_balance(&a, &U256::from(42u64));
|
|
assert_eq!(state.balance(&a), U256::from(27u64));
|
|
state.commit();
|
|
assert_eq!(state.balance(&a), U256::from(27u64));
|
|
state.transfer_balance(&a, &b, &U256::from(18u64));
|
|
assert_eq!(state.balance(&a), U256::from(9u64));
|
|
assert_eq!(state.balance(&b), U256::from(18u64));
|
|
state.commit();
|
|
assert_eq!(state.balance(&a), U256::from(9u64));
|
|
assert_eq!(state.balance(&b), U256::from(18u64));
|
|
}
|
|
|
|
#[test]
|
|
fn alter_nonce() {
|
|
let mut state_result = get_temp_state();
|
|
let mut state = state_result.reference_mut();
|
|
let a = Address::zero();
|
|
state.inc_nonce(&a);
|
|
assert_eq!(state.nonce(&a), U256::from(1u64));
|
|
state.inc_nonce(&a);
|
|
assert_eq!(state.nonce(&a), U256::from(2u64));
|
|
state.commit();
|
|
assert_eq!(state.nonce(&a), U256::from(2u64));
|
|
state.inc_nonce(&a);
|
|
assert_eq!(state.nonce(&a), U256::from(3u64));
|
|
state.commit();
|
|
assert_eq!(state.nonce(&a), U256::from(3u64));
|
|
}
|
|
|
|
#[test]
|
|
fn balance_nonce() {
|
|
let mut state_result = get_temp_state();
|
|
let mut state = state_result.reference_mut();
|
|
let a = Address::zero();
|
|
assert_eq!(state.balance(&a), U256::from(0u64));
|
|
assert_eq!(state.nonce(&a), U256::from(0u64));
|
|
state.commit();
|
|
assert_eq!(state.balance(&a), U256::from(0u64));
|
|
assert_eq!(state.nonce(&a), U256::from(0u64));
|
|
}
|
|
|
|
#[test]
|
|
fn ensure_cached() {
|
|
let mut state_result = get_temp_state();
|
|
let mut state = state_result.reference_mut();
|
|
let a = Address::zero();
|
|
state.require(&a, false);
|
|
state.commit();
|
|
assert_eq!(state.root().hex(), "0ce23f3c809de377b008a4a3ee94a0834aac8bec1f86e28ffe4fdb5a15b0c785");
|
|
}
|
|
|
|
#[test]
|
|
fn snapshot_basic() {
|
|
let mut state_result = get_temp_state();
|
|
let mut state = state_result.reference_mut();
|
|
let a = Address::zero();
|
|
state.snapshot();
|
|
state.add_balance(&a, &U256::from(69u64));
|
|
assert_eq!(state.balance(&a), U256::from(69u64));
|
|
state.clear_snapshot();
|
|
assert_eq!(state.balance(&a), U256::from(69u64));
|
|
state.snapshot();
|
|
state.add_balance(&a, &U256::from(1u64));
|
|
assert_eq!(state.balance(&a), U256::from(70u64));
|
|
state.revert_snapshot();
|
|
assert_eq!(state.balance(&a), U256::from(69u64));
|
|
}
|
|
|
|
#[test]
|
|
fn snapshot_nested() {
|
|
let mut state_result = get_temp_state();
|
|
let mut state = state_result.reference_mut();
|
|
let a = Address::zero();
|
|
state.snapshot();
|
|
state.snapshot();
|
|
state.add_balance(&a, &U256::from(69u64));
|
|
assert_eq!(state.balance(&a), U256::from(69u64));
|
|
state.clear_snapshot();
|
|
assert_eq!(state.balance(&a), U256::from(69u64));
|
|
state.revert_snapshot();
|
|
assert_eq!(state.balance(&a), U256::from(0));
|
|
}
|
|
|
|
#[test]
|
|
fn create_empty() {
|
|
let mut state_result = get_temp_state();
|
|
let mut state = state_result.reference_mut();
|
|
state.commit();
|
|
assert_eq!(state.root().hex(), "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421");
|
|
}
|
|
|
|
}
|