Cleanups.

src/account.rs

@@ -73,5 +73,13 @@ impl Account {
 		}{
 			self.code = new_code;
 		}
+
+		// that nasty bit of code should really be:
+		/*if let HashOrData::Data(ref d) = self.code {
+    		let h = db.insert(d);
+    		self.code = HashOrData::Both(h, d.clone());
+		}*/
+		// a rewrite it closer to this would be good...
+
 	}
 }

src/state.rs

@@ -64,6 +64,7 @@ impl State {
 
 	/// Commit accounts to TrieDB. This is simplified version of
 	/// cpp-ethereum's dev::eth::commit.
+	/// accounts mutable because we may need to commit the code or storage and record that.
 	pub fn commit(db: &mut HashDB, mut root: H256, accounts: &mut HashMap<Address, Account>) -> H256 {
 		// first, commit the sub trees.
 		for (_, ref mut account) in accounts.iter_mut() {
@@ -86,7 +87,7 @@ impl State {
 	}
 
 	pub fn insert_accounts(&mut self, accounts: &mut HashMap<Address, Account>) {
-		let r = self.root.clone();
+		let r = self.root.clone();	// would prefer not to do this, really. 
 		self.root = Self::commit(&mut self.db, r, accounts);
 	}
 }