Refactored Pod & Diff types into separate files.

This commit is contained in:
Gav Wood 2016-01-14 16:46:32 +01:00
parent 1b1038fe06
commit c4d2df4872
9 changed files with 471 additions and 504 deletions

View File

@ -18,7 +18,6 @@ rust-crypto = "0.2.34"
time = "0.1"
#interpolate_idents = { git = "https://github.com/SkylerLipthay/interpolate_idents" }
evmjit = { path = "rust-evmjit", optional = true }
itertools = "0.4"
[features]
default = ["jit"]

View File

@ -1,396 +1,5 @@
use util::*;
use itertools::Itertools;
pub const SHA3_EMPTY: H256 = H256( [0xc5, 0xd2, 0x46, 0x01, 0x86, 0xf7, 0x23, 0x3c, 0x92, 0x7e, 0x7d, 0xb2, 0xdc, 0xc7, 0x03, 0xc0, 0xe5, 0x00, 0xb6, 0x53, 0xca, 0x82, 0x27, 0x3b, 0x7b, 0xfa, 0xd8, 0x04, 0x5d, 0x85, 0xa4, 0x70] );
#[derive(Debug,Clone,PartialEq,Eq)]
pub enum Diff<T> where T: Eq {
Same,
Born(T),
Changed(T, T),
Died(T),
}
#[derive(Debug,Clone,PartialEq,Eq)]
pub enum Existance {
Born,
Alive,
Died,
}
impl<T> Diff<T> where T: Eq {
pub fn new(pre: T, post: T) -> Self { if pre == post { Diff::Same } else { Diff::Changed(pre, post) } }
pub fn pre(&self) -> Option<&T> { match self { &Diff::Died(ref x) | &Diff::Changed(ref x, _) => Some(x), _ => None } }
pub fn post(&self) -> Option<&T> { match self { &Diff::Born(ref x) | &Diff::Changed(_, ref x) => Some(x), _ => None } }
pub fn is_same(&self) -> bool { match self { &Diff::Same => true, _ => false }}
}
#[derive(Debug,Clone,PartialEq,Eq)]
/// Genesis account data. Does not have a DB overlay cache.
pub struct PodAccount {
// Balance of the account.
pub balance: U256,
// Nonce of the account.
pub nonce: U256,
pub code: Bytes,
pub storage: BTreeMap<H256, H256>,
}
impl fmt::Display for PodAccount {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "(bal={}; nonce={}; code={} bytes, #{}; storage={} items)", self.balance, self.nonce, self.code.len(), self.code.sha3(), self.storage.len())
}
}
#[derive(Debug,Clone,PartialEq,Eq)]
pub struct PodState (BTreeMap<Address, PodAccount>);
pub fn map_h256_h256_from_json(json: &Json) -> BTreeMap<H256, H256> {
json.as_object().unwrap().iter().fold(BTreeMap::new(), |mut m, (key, value)| {
m.insert(H256::from(&u256_from_str(key)), H256::from(&u256_from_json(value)));
m
})
}
impl PodState {
/// Contruct a new object from the `m`.
pub fn from(m: BTreeMap<Address, PodAccount>) -> PodState { PodState(m) }
/// Translate the JSON object into a hash map of account information ready for insertion into State.
pub fn from_json(json: &Json) -> PodState {
PodState(json.as_object().unwrap().iter().fold(BTreeMap::new(), |mut state, (address, acc)| {
let balance = acc.find("balance").map(&u256_from_json);
let nonce = acc.find("nonce").map(&u256_from_json);
let storage = acc.find("storage").map(&map_h256_h256_from_json);;
let code = acc.find("code").map(&bytes_from_json);
if balance.is_some() || nonce.is_some() || storage.is_some() || code.is_some() {
state.insert(address_from_hex(address), PodAccount{
balance: balance.unwrap_or(U256::zero()),
nonce: nonce.unwrap_or(U256::zero()),
storage: storage.unwrap_or(BTreeMap::new()),
code: code.unwrap_or(Vec::new())
});
}
state
}))
}
/// Drain object to get the underlying map.
pub fn drain(self) -> BTreeMap<Address, PodAccount> { self.0 }
}
impl fmt::Display for PodState {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
for (add, acc) in &self.0 {
try!(writeln!(f, "{} => {}", add, acc));
}
Ok(())
}
}
#[derive(Debug,Clone,PartialEq,Eq)]
pub struct AccountDiff {
pub balance: Diff<U256>, // Allowed to be Same
pub nonce: Diff<U256>, // Allowed to be Same
pub code: Diff<Bytes>, // Allowed to be Same
pub storage: BTreeMap<H256, Diff<H256>>,// Not allowed to be Same
}
impl AccountDiff {
pub fn existance(&self) -> Existance {
match self.balance {
Diff::Born(_) => Existance::Born,
Diff::Died(_) => Existance::Died,
_ => Existance::Alive,
}
}
}
fn format(u: &H256) -> String {
if u <= &H256::from(0xffffffff) {
format!("{} = 0x{:x}", U256::from(u.as_slice()).low_u32(), U256::from(u.as_slice()).low_u32())
} else if u <= &H256::from(u64::max_value()) {
format!("{} = 0x{:x}", U256::from(u.as_slice()).low_u64(), U256::from(u.as_slice()).low_u64())
// } else if u <= &H256::from("0xffffffffffffffffffffffffffffffffffffffff") {
// format!("@{}", Address::from(u))
} else {
format!("#{}", u)
}
}
#[derive(Debug,Clone,PartialEq,Eq)]
pub struct StateDiff (BTreeMap<Address, AccountDiff>);
impl fmt::Display for AccountDiff {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self.nonce {
Diff::Born(ref x) => try!(write!(f, " non {}", x)),
Diff::Changed(ref pre, ref post) => try!(write!(f, "#{} ({} {} {})", post, pre, if pre > post {"-"} else {"+"}, *max(pre, post) - * min(pre, post))),
_ => {},
}
match self.balance {
Diff::Born(ref x) => try!(write!(f, " bal {}", x)),
Diff::Changed(ref pre, ref post) => try!(write!(f, "${} ({} {} {})", post, pre, if pre > post {"-"} else {"+"}, *max(pre, post) - *min(pre, post))),
_ => {},
}
match self.code {
Diff::Born(ref x) => try!(write!(f, " code {}", x.pretty())),
_ => {},
}
try!(write!(f, "\n"));
for (k, dv) in self.storage.iter() {
match dv {
&Diff::Born(ref v) => try!(write!(f, " + {} => {}\n", format(k), format(v))),
&Diff::Changed(ref pre, ref post) => try!(write!(f, " * {} => {} (was {})\n", format(k), format(post), format(pre))),
&Diff::Died(_) => try!(write!(f, " X {}\n", format(k))),
_ => {},
}
}
Ok(())
}
}
impl fmt::Display for Existance {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
&Existance::Born => try!(write!(f, "+++")),
&Existance::Alive => try!(write!(f, "***")),
&Existance::Died => try!(write!(f, "XXX")),
}
Ok(())
}
}
impl fmt::Display for StateDiff {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
for (add, acc) in self.0.iter() {
try!(write!(f, "{} {}: {}", acc.existance(), add, acc));
}
Ok(())
}
}
pub fn pod_diff(pre: Option<&PodAccount>, post: Option<&PodAccount>) -> Option<AccountDiff> {
match (pre, post) {
(None, Some(x)) => Some(AccountDiff {
balance: Diff::Born(x.balance.clone()),
nonce: Diff::Born(x.nonce.clone()),
code: Diff::Born(x.code.clone()),
storage: x.storage.iter().map(|(k, v)| (k.clone(), Diff::Born(v.clone()))).collect(),
}),
(Some(x), None) => Some(AccountDiff {
balance: Diff::Died(x.balance.clone()),
nonce: Diff::Died(x.nonce.clone()),
code: Diff::Died(x.code.clone()),
storage: x.storage.iter().map(|(k, v)| (k.clone(), Diff::Died(v.clone()))).collect(),
}),
(Some(pre), Some(post)) => {
let storage: Vec<_> = pre.storage.keys().merge(post.storage.keys())
.filter(|k| pre.storage.get(k).unwrap_or(&H256::new()) != post.storage.get(k).unwrap_or(&H256::new()))
.collect();
let r = AccountDiff {
balance: Diff::new(pre.balance.clone(), post.balance.clone()),
nonce: Diff::new(pre.nonce.clone(), post.nonce.clone()),
code: Diff::new(pre.code.clone(), post.code.clone()),
storage: storage.into_iter().map(|k|
(k.clone(), Diff::new(
pre.storage.get(&k).cloned().unwrap_or(H256::new()),
post.storage.get(&k).cloned().unwrap_or(H256::new())
))).collect(),
};
if r.balance.is_same() && r.nonce.is_same() && r.code.is_same() && r.storage.len() == 0 {
None
} else {
Some(r)
}
},
_ => None,
}
}
pub fn pod_state_diff(pre: &PodState, post: &PodState) -> StateDiff {
StateDiff(pre.0.keys().merge(post.0.keys()).filter_map(|acc| pod_diff(pre.0.get(acc), post.0.get(acc)).map(|d|(acc.clone(), d))).collect())
}
#[test]
fn state_diff_create_delete() {
let a = PodState(map![
x!(1) => PodAccount{
balance: x!(69),
nonce: x!(0),
code: vec![],
storage: map![]
}
]);
assert_eq!(pod_state_diff(&a, &PodState(map![])), StateDiff(map![
x!(1) => AccountDiff{
balance: Diff::Died(x!(69)),
nonce: Diff::Died(x!(0)),
code: Diff::Died(vec![]),
storage: map![],
}
]));
assert_eq!(pod_state_diff(&PodState(map![]), &a), StateDiff(map![
x!(1) => AccountDiff{
balance: Diff::Born(x!(69)),
nonce: Diff::Born(x!(0)),
code: Diff::Born(vec![]),
storage: map![],
}
]));
}
#[test]
fn state_diff_cretae_delete_with_unchanged() {
let a = PodState(map![
x!(1) => PodAccount{
balance: x!(69),
nonce: x!(0),
code: vec![],
storage: map![]
}
]);
let b = PodState(map![
x!(1) => PodAccount{
balance: x!(69),
nonce: x!(0),
code: vec![],
storage: map![]
},
x!(2) => PodAccount{
balance: x!(69),
nonce: x!(0),
code: vec![],
storage: map![]
}
]);
assert_eq!(pod_state_diff(&a, &b), StateDiff(map![
x!(2) => AccountDiff{
balance: Diff::Born(x!(69)),
nonce: Diff::Born(x!(0)),
code: Diff::Born(vec![]),
storage: map![],
}
]));
assert_eq!(pod_state_diff(&b, &a), StateDiff(map![
x!(2) => AccountDiff{
balance: Diff::Died(x!(69)),
nonce: Diff::Died(x!(0)),
code: Diff::Died(vec![]),
storage: map![],
}
]));
}
#[test]
fn state_diff_change_with_unchanged() {
let a = PodState(map![
x!(1) => PodAccount{
balance: x!(69),
nonce: x!(0),
code: vec![],
storage: map![]
},
x!(2) => PodAccount{
balance: x!(69),
nonce: x!(0),
code: vec![],
storage: map![]
}
]);
let b = PodState(map![
x!(1) => PodAccount{
balance: x!(69),
nonce: x!(1),
code: vec![],
storage: map![]
},
x!(2) => PodAccount{
balance: x!(69),
nonce: x!(0),
code: vec![],
storage: map![]
}
]);
assert_eq!(pod_state_diff(&a, &b), StateDiff(map![
x!(1) => AccountDiff{
balance: Diff::Same,
nonce: Diff::Changed(x!(0), x!(1)),
code: Diff::Same,
storage: map![],
}
]));
}
#[test]
fn account_diff_existence() {
let a = PodAccount{balance: x!(69), nonce: x!(0), code: vec![], storage: map![]};
assert_eq!(pod_diff(Some(&a), Some(&a)), None);
assert_eq!(pod_diff(None, Some(&a)), Some(AccountDiff{
balance: Diff::Born(x!(69)),
nonce: Diff::Born(x!(0)),
code: Diff::Born(vec![]),
storage: map![],
}));
}
#[test]
fn account_diff_basic() {
let a = PodAccount{balance: x!(69), nonce: x!(0), code: vec![], storage: map![]};
let b = PodAccount{balance: x!(42), nonce: x!(1), code: vec![], storage: map![]};
assert_eq!(pod_diff(Some(&a), Some(&b)), Some(AccountDiff {
balance: Diff::Changed(x!(69), x!(42)),
nonce: Diff::Changed(x!(0), x!(1)),
code: Diff::Same,
storage: map![],
}));
}
#[test]
fn account_diff_code() {
let a = PodAccount{balance: x!(0), nonce: x!(0), code: vec![], storage: map![]};
let b = PodAccount{balance: x!(0), nonce: x!(1), code: vec![0], storage: map![]};
assert_eq!(pod_diff(Some(&a), Some(&b)), Some(AccountDiff {
balance: Diff::Same,
nonce: Diff::Changed(x!(0), x!(1)),
code: Diff::Changed(vec![], vec![0]),
storage: map![],
}));
}
#[test]
fn account_diff_storage() {
let a = PodAccount {
balance: x!(0),
nonce: x!(0),
code: vec![],
storage: mapx![1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 => 0, 6 => 0, 7 => 0]
};
let b = PodAccount {
balance: x!(0),
nonce: x!(0),
code: vec![],
storage: mapx![1 => 1, 2 => 3, 3 => 0, 5 => 0, 7 => 7, 8 => 0, 9 => 9]
};
assert_eq!(pod_diff(Some(&a), Some(&b)), Some(AccountDiff {
balance: Diff::Same,
nonce: Diff::Same,
code: Diff::Same,
storage: map![
x!(2) => Diff::new(x!(2), x!(3)),
x!(3) => Diff::new(x!(3), x!(0)),
x!(4) => Diff::new(x!(4), x!(0)),
x!(7) => Diff::new(x!(0), x!(7)),
x!(9) => Diff::new(x!(0), x!(9))
],
}));
}
#[derive(PartialEq,Eq,Clone,Copy)]
pub enum Filth {
Clean,
Dirty,
}
use pod_account::*;
/// Single account in the system.
#[derive(Clone)]
@ -409,29 +18,6 @@ pub struct Account {
code_cache: Bytes,
}
impl PodAccount {
/// Convert Account to a PodAccount.
/// NOTE: This will silently fail unless the account is fully cached.
pub fn from_account(acc: &Account) -> PodAccount {
PodAccount {
balance: acc.balance.clone(),
nonce: acc.nonce.clone(),
storage: acc.storage_overlay.borrow().iter().fold(BTreeMap::new(), |mut m, (k, &(_, ref v))| {m.insert(k.clone(), v.clone()); m}),
code: acc.code_cache.clone()
}
}
pub fn rlp(&self) -> Bytes {
let mut stream = RlpStream::new_list(4);
stream.append(&self.nonce);
stream.append(&self.balance);
// TODO.
stream.append(&SHA3_NULL_RLP);
stream.append(&self.code.sha3());
stream.out()
}
}
impl Account {
/// General constructor.
pub fn new(balance: U256, nonce: U256, storage: HashMap<H256, H256>, code: Bytes) -> Account {
@ -647,16 +233,11 @@ impl fmt::Debug for Account {
#[cfg(test)]
mod tests {
use super::*;
use std::collections::HashMap;
use util::hash::*;
use util::bytes::*;
use util::rlp::*;
use util::uint::*;
use util::overlaydb::*;
use util::*;
use super::*;
#[test]
fn storage_at() {
#[test]
fn storage_at() {
let mut db = OverlayDB::new_temp();
let rlp = {
let mut a = Account::new_contract(U256::from(69u8));
@ -671,10 +252,10 @@ fn storage_at() {
assert_eq!(a.storage_root().unwrap().hex(), "c57e1afb758b07f8d2c8f13a3b6e44fa5ff94ab266facc5a4fd3f062426e50b2");
assert_eq!(a.storage_at(&mut db, &H256::from(&U256::from(0x00u64))), H256::from(&U256::from(0x1234u64)));
assert_eq!(a.storage_at(&mut db, &H256::from(&U256::from(0x01u64))), H256::new());
}
}
#[test]
fn note_code() {
#[test]
fn note_code() {
let mut db = OverlayDB::new_temp();
let rlp = {
@ -689,40 +270,40 @@ fn note_code() {
let mut a = Account::from_rlp(&rlp);
assert_eq!(a.note_code(vec![0x55, 0x44, 0xffu8]), Ok(()));
}
}
#[test]
fn commit_storage() {
#[test]
fn commit_storage() {
let mut a = Account::new_contract(U256::from(69u8));
let mut db = OverlayDB::new_temp();
a.set_storage(H256::from(&U256::from(0x00u64)), H256::from(&U256::from(0x1234u64)));
assert_eq!(a.storage_root(), None);
a.commit_storage(&mut db);
assert_eq!(a.storage_root().unwrap().hex(), "c57e1afb758b07f8d2c8f13a3b6e44fa5ff94ab266facc5a4fd3f062426e50b2");
}
}
#[test]
fn commit_code() {
#[test]
fn commit_code() {
let mut a = Account::new_contract(U256::from(69u8));
let mut db = OverlayDB::new_temp();
a.init_code(vec![0x55, 0x44, 0xffu8]);
assert_eq!(a.code_hash(), SHA3_EMPTY);
a.commit_code(&mut db);
assert_eq!(a.code_hash().hex(), "af231e631776a517ca23125370d542873eca1fb4d613ed9b5d5335a46ae5b7eb");
}
}
#[test]
fn rlpio() {
#[test]
fn rlpio() {
let a = Account::new(U256::from(69u8), U256::from(0u8), HashMap::new(), Bytes::new());
let b = Account::from_rlp(&a.rlp());
assert_eq!(a.balance(), b.balance());
assert_eq!(a.nonce(), b.nonce());
assert_eq!(a.code_hash(), b.code_hash());
assert_eq!(a.storage_root(), b.storage_root());
}
}
#[test]
fn new_account() {
#[test]
fn new_account() {
use rustc_serialize::hex::ToHex;
let a = Account::new(U256::from(69u8), U256::from(0u8), HashMap::new(), Bytes::new());
@ -731,14 +312,14 @@ fn new_account() {
assert_eq!(a.nonce(), &U256::from(0u8));
assert_eq!(a.code_hash(), SHA3_EMPTY);
assert_eq!(a.storage_root().unwrap(), &SHA3_NULL_RLP);
}
}
#[test]
fn create_account() {
#[test]
fn create_account() {
use rustc_serialize::hex::ToHex;
let a = Account::new(U256::from(69u8), U256::from(0u8), HashMap::new(), Bytes::new());
assert_eq!(a.rlp().to_hex(), "f8448045a056e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421a0c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470");
}
}
}

121
src/account_diff.rs Normal file
View File

@ -0,0 +1,121 @@
use util::*;
use pod_account::*;
#[derive(Debug,Clone,PartialEq,Eq)]
/// Change in existance type.
// TODO: include other types of change.
pub enum Existance {
Born,
Alive,
Died,
}
impl fmt::Display for Existance {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
&Existance::Born => try!(write!(f, "+++")),
&Existance::Alive => try!(write!(f, "***")),
&Existance::Died => try!(write!(f, "XXX")),
}
Ok(())
}
}
#[derive(Debug,Clone,PartialEq,Eq)]
pub struct AccountDiff {
pub balance: Diff<U256>, // Allowed to be Same
pub nonce: Diff<U256>, // Allowed to be Same
pub code: Diff<Bytes>, // Allowed to be Same
pub storage: BTreeMap<H256, Diff<H256>>,// Not allowed to be Same
}
impl AccountDiff {
pub fn existance(&self) -> Existance {
match self.balance {
Diff::Born(_) => Existance::Born,
Diff::Died(_) => Existance::Died,
_ => Existance::Alive,
}
}
pub fn diff_pod(pre: Option<&PodAccount>, post: Option<&PodAccount>) -> Option<AccountDiff> {
match (pre, post) {
(None, Some(x)) => Some(AccountDiff {
balance: Diff::Born(x.balance.clone()),
nonce: Diff::Born(x.nonce.clone()),
code: Diff::Born(x.code.clone()),
storage: x.storage.iter().map(|(k, v)| (k.clone(), Diff::Born(v.clone()))).collect(),
}),
(Some(x), None) => Some(AccountDiff {
balance: Diff::Died(x.balance.clone()),
nonce: Diff::Died(x.nonce.clone()),
code: Diff::Died(x.code.clone()),
storage: x.storage.iter().map(|(k, v)| (k.clone(), Diff::Died(v.clone()))).collect(),
}),
(Some(pre), Some(post)) => {
let storage: Vec<_> = pre.storage.keys().merge(post.storage.keys())
.filter(|k| pre.storage.get(k).unwrap_or(&H256::new()) != post.storage.get(k).unwrap_or(&H256::new()))
.collect();
let r = AccountDiff {
balance: Diff::new(pre.balance.clone(), post.balance.clone()),
nonce: Diff::new(pre.nonce.clone(), post.nonce.clone()),
code: Diff::new(pre.code.clone(), post.code.clone()),
storage: storage.into_iter().map(|k|
(k.clone(), Diff::new(
pre.storage.get(&k).cloned().unwrap_or(H256::new()),
post.storage.get(&k).cloned().unwrap_or(H256::new())
))).collect(),
};
if r.balance.is_same() && r.nonce.is_same() && r.code.is_same() && r.storage.len() == 0 {
None
} else {
Some(r)
}
},
_ => None,
}
}
}
// TODO: refactor into something nicer.
fn interpreted_hash(u: &H256) -> String {
if u <= &H256::from(0xffffffff) {
format!("{} = 0x{:x}", U256::from(u.as_slice()).low_u32(), U256::from(u.as_slice()).low_u32())
} else if u <= &H256::from(u64::max_value()) {
format!("{} = 0x{:x}", U256::from(u.as_slice()).low_u64(), U256::from(u.as_slice()).low_u64())
// } else if u <= &H256::from("0xffffffffffffffffffffffffffffffffffffffff") {
// format!("@{}", Address::from(u))
} else {
format!("#{}", u)
}
}
impl fmt::Display for AccountDiff {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self.nonce {
Diff::Born(ref x) => try!(write!(f, " non {}", x)),
Diff::Changed(ref pre, ref post) => try!(write!(f, "#{} ({} {} {})", post, pre, if pre > post {"-"} else {"+"}, *max(pre, post) - * min(pre, post))),
_ => {},
}
match self.balance {
Diff::Born(ref x) => try!(write!(f, " bal {}", x)),
Diff::Changed(ref pre, ref post) => try!(write!(f, "${} ({} {} {})", post, pre, if pre > post {"-"} else {"+"}, *max(pre, post) - *min(pre, post))),
_ => {},
}
match self.code {
Diff::Born(ref x) => try!(write!(f, " code {}", x.pretty())),
_ => {},
}
try!(write!(f, "\n"));
for (k, dv) in self.storage.iter() {
match dv {
&Diff::Born(ref v) => try!(write!(f, " + {} => {}\n", interpreted_hash(k), interpreted_hash(v))),
&Diff::Changed(ref pre, ref post) => try!(write!(f, " * {} => {} (was {})\n", interpreted_hash(k), interpreted_hash(post), interpreted_hash(pre))),
&Diff::Died(_) => try!(write!(f, " X {}\n", interpreted_hash(k))),
_ => {},
}
}
Ok(())
}
}

View File

@ -73,18 +73,19 @@
//! sudo ldconfig
//! ```
#[macro_use] extern crate log;
#[macro_use]
extern crate log;
extern crate rustc_serialize;
#[macro_use] extern crate itertools;
extern crate flate2;
extern crate rocksdb;
extern crate heapsize;
extern crate crypto;
extern crate time;
extern crate env_logger;
#[cfg(feature = "jit" )] extern crate evmjit;
#[macro_use] extern crate ethcore_util as util;
#[cfg(feature = "jit" )]
extern crate evmjit;
#[macro_use]
extern crate ethcore_util as util;
pub mod common;
pub mod basic_types;
@ -92,6 +93,10 @@ pub mod executive;
pub mod error;
pub mod log_entry;
pub mod env_info;
pub mod pod_account;
pub mod pod_state;
pub mod account_diff;
pub mod state_diff;
pub mod engine;
pub mod state;
pub mod account;

116
src/pod_account.rs Normal file
View File

@ -0,0 +1,116 @@
use util::*;
use account::*;
#[derive(Debug,Clone,PartialEq,Eq)]
/// Genesis account data. Does not have a DB overlay cache.
pub struct PodAccount {
pub balance: U256,
pub nonce: U256,
pub code: Bytes,
pub storage: BTreeMap<H256, H256>,
}
impl PodAccount {
/// Construct new object.
pub fn new(balance: U256, nonce: U256, code: Bytes, storage: BTreeMap<H256, H256>) -> PodAccount {
PodAccount { balance: balance, nonce: nonce, code: code, storage: storage }
}
/// Convert Account to a PodAccount.
/// NOTE: This will silently fail unless the account is fully cached.
pub fn from_account(acc: &Account) -> PodAccount {
PodAccount {
balance: acc.balance().clone(),
nonce: acc.nonce().clone(),
storage: acc.storage_overlay().iter().fold(BTreeMap::new(), |mut m, (k, &(_, ref v))| {m.insert(k.clone(), v.clone()); m}),
code: acc.code().unwrap().to_vec(),
}
}
pub fn rlp(&self) -> Bytes {
let mut stream = RlpStream::new_list(4);
stream.append(&self.nonce);
stream.append(&self.balance);
// TODO.
stream.append(&SHA3_NULL_RLP);
stream.append(&self.code.sha3());
stream.out()
}
}
impl fmt::Display for PodAccount {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "(bal={}; nonce={}; code={} bytes, #{}; storage={} items)", self.balance, self.nonce, self.code.len(), self.code.sha3(), self.storage.len())
}
}
#[cfg(test)]
mod test {
use common::*;
use super::*;
use account_diff::*;
#[test]
fn existence() {
let a = PodAccount{balance: x!(69), nonce: x!(0), code: vec![], storage: map![]};
assert_eq!(AccountDiff::diff_pod(Some(&a), Some(&a)), None);
assert_eq!(AccountDiff::diff_pod(None, Some(&a)), Some(AccountDiff{
balance: Diff::Born(x!(69)),
nonce: Diff::Born(x!(0)),
code: Diff::Born(vec![]),
storage: map![],
}));
}
#[test]
fn basic() {
let a = PodAccount{balance: x!(69), nonce: x!(0), code: vec![], storage: map![]};
let b = PodAccount{balance: x!(42), nonce: x!(1), code: vec![], storage: map![]};
assert_eq!(AccountDiff::diff_pod(Some(&a), Some(&b)), Some(AccountDiff {
balance: Diff::Changed(x!(69), x!(42)),
nonce: Diff::Changed(x!(0), x!(1)),
code: Diff::Same,
storage: map![],
}));
}
#[test]
fn code() {
let a = PodAccount{balance: x!(0), nonce: x!(0), code: vec![], storage: map![]};
let b = PodAccount{balance: x!(0), nonce: x!(1), code: vec![0], storage: map![]};
assert_eq!(AccountDiff::diff_pod(Some(&a), Some(&b)), Some(AccountDiff {
balance: Diff::Same,
nonce: Diff::Changed(x!(0), x!(1)),
code: Diff::Changed(vec![], vec![0]),
storage: map![],
}));
}
#[test]
fn storage() {
let a = PodAccount {
balance: x!(0),
nonce: x!(0),
code: vec![],
storage: mapx![1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 => 0, 6 => 0, 7 => 0]
};
let b = PodAccount {
balance: x!(0),
nonce: x!(0),
code: vec![],
storage: mapx![1 => 1, 2 => 3, 3 => 0, 5 => 0, 7 => 7, 8 => 0, 9 => 9]
};
assert_eq!(AccountDiff::diff_pod(Some(&a), Some(&b)), Some(AccountDiff {
balance: Diff::Same,
nonce: Diff::Same,
code: Diff::Same,
storage: map![
x!(2) => Diff::new(x!(2), x!(3)),
x!(3) => Diff::new(x!(3), x!(0)),
x!(4) => Diff::new(x!(4), x!(0)),
x!(7) => Diff::new(x!(0), x!(7)),
x!(9) => Diff::new(x!(0), x!(9))
],
}));
}
}

44
src/pod_state.rs Normal file
View File

@ -0,0 +1,44 @@
use util::*;
use pod_account::*;
#[derive(Debug,Clone,PartialEq,Eq)]
pub struct PodState (BTreeMap<Address, PodAccount>);
impl PodState {
/// Contruct a new object from the `m`.
pub fn new(m: BTreeMap<Address, PodAccount>) -> PodState { PodState(m) }
/// Translate the JSON object into a hash map of account information ready for insertion into State.
pub fn from_json(json: &Json) -> PodState {
PodState(json.as_object().unwrap().iter().fold(BTreeMap::new(), |mut state, (address, acc)| {
let balance = acc.find("balance").map(&u256_from_json);
let nonce = acc.find("nonce").map(&u256_from_json);
let storage = acc.find("storage").map(&map_h256_h256_from_json);;
let code = acc.find("code").map(&bytes_from_json);
if balance.is_some() || nonce.is_some() || storage.is_some() || code.is_some() {
state.insert(address_from_hex(address), PodAccount{
balance: balance.unwrap_or(U256::zero()),
nonce: nonce.unwrap_or(U256::zero()),
storage: storage.unwrap_or(BTreeMap::new()),
code: code.unwrap_or(Vec::new())
});
}
state
}))
}
/// Get the underlying map.
pub fn get(&self) -> &BTreeMap<Address, PodAccount> { &self.0 }
/// Drain object to get the underlying map.
pub fn drain(self) -> BTreeMap<Address, PodAccount> { self.0 }
}
impl fmt::Display for PodState {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
for (add, acc) in &self.0 {
try!(writeln!(f, "{} => {}", add, acc));
}
Ok(())
}
}

View File

@ -1,6 +1,8 @@
use common::*;
use engine::Engine;
use executive::Executive;
use pod_account::*;
use pod_state::*;
pub type ApplyResult = Result<Receipt, Error>;
@ -201,7 +203,7 @@ impl State {
/// Populate a PodAccount map from this state.
pub fn to_pod(&self) -> PodState {
// TODO: handle database rather than just the cache.
PodState::from(self.cache.borrow().iter().fold(BTreeMap::new(), |mut m, (add, opt)| {
PodState::new(self.cache.borrow().iter().fold(BTreeMap::new(), |mut m, (add, opt)| {
if let &Some(ref acc) = opt {
m.insert(add.clone(), PodAccount::from_account(acc));
}

98
src/state_diff.rs Normal file
View File

@ -0,0 +1,98 @@
use util::*;
use pod_state::*;
use account_diff::*;
#[derive(Debug,Clone,PartialEq,Eq)]
pub struct StateDiff (BTreeMap<Address, AccountDiff>);
impl StateDiff {
/// Calculate and return diff between `pre` state and `post` state.
pub fn diff_pod(pre: &PodState, post: &PodState) -> StateDiff {
StateDiff(pre.get().keys().merge(post.get().keys()).filter_map(|acc| AccountDiff::diff_pod(pre.get().get(acc), post.get().get(acc)).map(|d|(acc.clone(), d))).collect())
}
}
impl fmt::Display for StateDiff {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
for (add, acc) in self.0.iter() {
try!(write!(f, "{} {}: {}", acc.existance(), add, acc));
}
Ok(())
}
}
#[cfg(test)]
mod test {
use common::*;
use pod_state::*;
use account_diff::*;
use pod_account::*;
use super::*;
#[test]
fn create_delete() {
let a = PodState::new(map![ x!(1) => PodAccount::new(x!(69), x!(0), vec![], map![]) ]);
assert_eq!(StateDiff::diff_pod(&a, &PodState::new(map![])), StateDiff(map![
x!(1) => AccountDiff{
balance: Diff::Died(x!(69)),
nonce: Diff::Died(x!(0)),
code: Diff::Died(vec![]),
storage: map![],
}
]));
assert_eq!(StateDiff::diff_pod(&PodState::new(map![]), &a), StateDiff(map![
x!(1) => AccountDiff{
balance: Diff::Born(x!(69)),
nonce: Diff::Born(x!(0)),
code: Diff::Born(vec![]),
storage: map![],
}
]));
}
#[test]
fn create_delete_with_unchanged() {
let a = PodState::new(map![ x!(1) => PodAccount::new(x!(69), x!(0), vec![], map![]) ]);
let b = PodState::new(map![
x!(1) => PodAccount::new(x!(69), x!(0), vec![], map![]),
x!(2) => PodAccount::new(x!(69), x!(0), vec![], map![])
]);
assert_eq!(StateDiff::diff_pod(&a, &b), StateDiff(map![
x!(2) => AccountDiff{
balance: Diff::Born(x!(69)),
nonce: Diff::Born(x!(0)),
code: Diff::Born(vec![]),
storage: map![],
}
]));
assert_eq!(StateDiff::diff_pod(&b, &a), StateDiff(map![
x!(2) => AccountDiff{
balance: Diff::Died(x!(69)),
nonce: Diff::Died(x!(0)),
code: Diff::Died(vec![]),
storage: map![],
}
]));
}
#[test]
fn change_with_unchanged() {
let a = PodState::new(map![
x!(1) => PodAccount::new(x!(69), x!(0), vec![], map![]),
x!(2) => PodAccount::new(x!(69), x!(0), vec![], map![])
]);
let b = PodState::new(map![
x!(1) => PodAccount::new(x!(69), x!(1), vec![], map![]),
x!(2) => PodAccount::new(x!(69), x!(0), vec![], map![])
]);
assert_eq!(StateDiff::diff_pod(&a, &b), StateDiff(map![
x!(1) => AccountDiff{
balance: Diff::Same,
nonce: Diff::Changed(x!(0), x!(1)),
code: Diff::Same,
storage: map![],
}
]));
}
}

View File

@ -1,6 +1,7 @@
use super::test_common::*;
use state::*;
use executive::*;
use pod_state::*;
use state_diff::*;
use ethereum;
fn do_json_test(json_data: &[u8]) -> Vec<String> {
@ -40,7 +41,7 @@ fn do_json_test(json_data: &[u8]) -> Vec<String> {
let our_post = s.to_pod();
println!("Got:\n{}", our_post);
println!("Expect:\n{}", post);
println!("Diff ---expect -> +++got:\n{}", pod_state_diff(&post, &our_post));
println!("Diff ---expect -> +++got:\n{}", StateDiff::diff_pod(&post, &our_post));
}
if fail_unless(logs == r.logs) {