Merge branch 'master' of https://github.com/gavofyork/ethcore-util into at

src/bytes.rs

@@ -40,6 +40,38 @@ use std::error::Error as StdError;
 use uint::{U128, U256};
 use hash::FixedHash;
 
+pub struct PrettySlice<'a> (&'a [u8]);
+
+impl<'a> fmt::Debug for PrettySlice<'a> {
+	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+		for i in 0..self.0.len() {
+			try!(write!(f, "{:02x}", self.0[i]));
+		}
+		Ok(())
+	}
+}
+
+pub trait ToPretty {
+	fn pretty(&self) -> PrettySlice;
+}
+
+impl<'a> ToPretty for &'a [u8] {
+	fn pretty(&self) -> PrettySlice {
+		PrettySlice(self)
+	}
+}
+
+impl<'a> ToPretty for &'a Bytes {
+	fn pretty(&self) -> PrettySlice {
+		PrettySlice(self.bytes())
+	}
+}
+impl ToPretty for Bytes {
+	fn pretty(&self) -> PrettySlice {
+		PrettySlice(self.bytes())
+	}
+}
+
 /// Vector of bytes
 pub type Bytes = Vec<u8>;
 

src/nibbleslice.rs

@@ -1,5 +1,6 @@
 //! Nibble-orientated view onto byte-slice, allowing nibble-precision offsets.
 use std::cmp::*;
+use std::fmt;
 use bytes::*;
 
 /// Nibble-orientated view onto byte-slice, allowing nibble-precision offsets.
@@ -25,7 +26,7 @@ use bytes::*;
 ///   assert_eq!(n2.mid(3).common_prefix(&n1), 3);
 /// }
 /// ```
-#[derive(Debug, Copy, Clone, Eq, Ord)]
+#[derive(Copy, Clone, Eq, Ord)]
 pub struct NibbleSlice<'a> {
 	data: &'a [u8],
 	offset: usize,
@@ -122,6 +123,15 @@ impl<'a> PartialOrd for NibbleSlice<'a> {
 	}
 }
 
+impl<'a> fmt::Debug for NibbleSlice<'a> {
+	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+		for i in 0..self.len() {
+			try!(write!(f, "{:01x}", self.at(i)));
+		}
+		Ok(())
+	}
+}
+
 #[cfg(test)]
 mod tests {
 	use super::NibbleSlice;

src/trie.rs

@@ -116,7 +116,7 @@ impl Diff {
 			self.0.push(Operation::New(rlp_sha3, rlp));
 		}
 		else {
-			trace!("new_node: inline node {:?}", &rlp);
+			trace!("new_node: inline node {:?}", rlp.pretty());
 			out.append_raw(&rlp, 1);
 		}
 	}
@@ -178,7 +178,7 @@ impl TrieDB {
 	fn set_root_rlp(&mut self, root_data: &[u8]) {
 		self.db.kill(&self.root);
 		self.root = self.db.insert(root_data);
-		trace!("set_root_rlp {:?} {:?}", root_data, self.root);
+		trace!("set_root_rlp {:?} {:?}", root_data.pretty(), self.root);
 	}
 
 	fn apply(&mut self, diff: Diff) {
@@ -190,7 +190,7 @@ impl TrieDB {
 					self.db.kill(&h);
 				},
 				Operation::New(h, d) => {
-					trace!("TrieDB::apply +++ {:?} -> {:?}", &h, &d);
+					trace!("TrieDB::apply +++ {:?} -> {:?}", &h, d.pretty());
 					self.db.emplace(h, d);
 				}
 			}
@@ -250,32 +250,32 @@ impl TrieDB {
 	}
 
 	fn add(&mut self, key: &NibbleSlice, value: &[u8]) {
-		trace!("ADD: {:?} {:?}", key, value);
+		trace!("ADD: {:?} {:?}", key, value.pretty());
 		// determine what the new root is, insert new nodes and remove old as necessary.
 		let mut todo: Diff = Diff::new();
 		let root_rlp = self.augmented(self.db.lookup(&self.root).expect("Trie root not found!"), key, value, &mut todo);
 		self.apply(todo);
 		self.set_root_rlp(&root_rlp);
-		trace!("---");
+		trace!("/");
 	}
 
 	fn compose_leaf(partial: &NibbleSlice, value: &[u8]) -> Bytes {
-		trace!("compose_leaf {:?} {:?} ({:?})", partial, value, partial.encoded(true));
+		trace!("compose_leaf {:?} {:?} ({:?})", partial, value.pretty(), partial.encoded(true).pretty());
 		let mut s = RlpStream::new_list(2);
 		s.append(&partial.encoded(true));
 		s.append(&value);
 		let r = s.out();
-		trace!("compose_leaf: -> {:?}", &r);
+		trace!("compose_leaf: -> {:?}", r.pretty());
 		r
 	}
 
 	fn compose_raw(partial: &NibbleSlice, raw_payload: &[u8], is_leaf: bool) -> Bytes {
-		println!("compose_raw {:?} {:?} {:?} ({:?})", partial, raw_payload, is_leaf, partial.encoded(is_leaf));
+		println!("compose_raw {:?} {:?} {:?} ({:?})", partial, raw_payload.pretty(), is_leaf, partial.encoded(is_leaf));
 		let mut s = RlpStream::new_list(2);
 		s.append(&partial.encoded(is_leaf));
 		s.append_raw(raw_payload, 1);
 		let r = s.out();
-		println!("compose_raw: -> {:?}", &r);
+		println!("compose_raw: -> {:?}", r.pretty());
 		r
 	}
 
@@ -287,17 +287,18 @@ impl TrieDB {
 	/// the trie.
 	fn take_node<'a, 'rlp_view>(&'a self, rlp: &'rlp_view Rlp<'a>, diff: &mut Diff) -> &'a [u8] where 'a: 'rlp_view {
 		if rlp.is_list() {
-			trace!("take_node {:?} (inline)", rlp.raw());
+			trace!("take_node {:?} (inline)", rlp.raw().pretty());
 			rlp.raw()
 		}
 		else if rlp.is_data() && rlp.size() == 32 {
 			let h = H256::decode(rlp);
 			let r = self.db.lookup(&h).expect("Trie root not found!");
-			trace!("take_node {:?} (indirect for {:?})", rlp.raw(), r);
+			trace!("take_node {:?} (indirect for {:?})", rlp.raw().pretty(), r);
 			diff.delete_node_sha3(h);
 			r
 		}
 		else {
+			trace!("take_node {:?} (???)", rlp.raw().pretty());
 			panic!("Empty or invalid node given?");
 		}
 	}
@@ -388,7 +389,7 @@ impl TrieDB {
 	///
 	/// **This operation will not insert the new node now destroy the original.**
 	fn augmented(&self, old: &[u8], partial: &NibbleSlice, value: &[u8], diff: &mut Diff) -> Bytes {
-		trace!("augmented ({:?}, {:?}, {:?})", old, partial, value);
+		trace!("augmented ({:?}, {:?}, {:?})", old.pretty(), partial, value.pretty());
 		// already have an extension. either fast_forward, cleve or transmute_to_branch.
 		let old_rlp = Rlp::new(old);
 		match old_rlp.prototype() {
@@ -528,7 +529,7 @@ mod tests {
 
 	#[test]
 	fn test_at_empty() {
-		let mut t = TrieDB::new_memory();
+		let t = TrieDB::new_memory();
 		assert_eq!(t.at(&[0x5]), None);
 	}
 
@@ -564,6 +565,7 @@ mod tests {
 
 	#[test]
 	fn test_at_dog() {
+		env_logger::init().unwrap();
 		let mut t = TrieDB::new_memory();
 		let v: Vec<(Vec<u8>, Vec<u8>)> = vec![
 			(From::from("do"), From::from("verb")),
@@ -589,12 +591,14 @@ mod tests {
 	fn playpen() {
 		env_logger::init().unwrap();
 
+		let big_value = b"00000000000000000000000000000000";
+
 		let mut t = TrieDB::new_memory();
-		t.insert(&[0x01u8, 0x23], &[0x01u8, 0x23]);
+		t.insert(&[0x01u8, 0x23], big_value);
-		t.insert(&[], &[0x0]);
+		t.insert(&[0x11u8, 0x23], big_value);
 		assert_eq!(*t.root(), trie_root(vec![
-			(vec![], vec![0x0]),
+			(vec![0x01u8, 0x23], big_value.to_vec()),
-			(vec![0x01u8, 0x23], vec![0x01u8, 0x23]),
+			(vec![0x11u8, 0x23], big_value.to_vec())
 		]));
 	}
 
@@ -643,4 +647,67 @@ mod tests {
 			(vec![0xf1u8, 0x23], vec![0xf1u8, 0x23]),
 		]));
 	}
+
+	#[test]
+	fn insert_value_into_branch_root() {
+		let mut t = TrieDB::new_memory();
+		t.insert(&[0x01u8, 0x23], &[0x01u8, 0x23]);
+		t.insert(&[], &[0x0]);
+		assert_eq!(*t.root(), trie_root(vec![
+			(vec![], vec![0x0]),
+			(vec![0x01u8, 0x23], vec![0x01u8, 0x23]),
+		]));
+	}
+
+	#[test]
+	fn insert_split_leaf() {
+		let mut t = TrieDB::new_memory();
+		t.insert(&[0x01u8, 0x23], &[0x01u8, 0x23]);
+		t.insert(&[0x01u8, 0x34], &[0x01u8, 0x34]);
+		assert_eq!(*t.root(), trie_root(vec![
+			(vec![0x01u8, 0x23], vec![0x01u8, 0x23]),
+			(vec![0x01u8, 0x34], vec![0x01u8, 0x34]),
+		]));
+	}
+
+	#[test]
+	fn insert_split_extenstion() {
+		let mut t = TrieDB::new_memory();
+		t.insert(&[0x01, 0x23, 0x45], &[0x01]);
+		t.insert(&[0x01, 0xf3, 0x45], &[0x02]);
+		t.insert(&[0x01, 0xf3, 0xf5], &[0x03]);
+		assert_eq!(*t.root(), trie_root(vec![
+			(vec![0x01, 0x23, 0x45], vec![0x01]),
+			(vec![0x01, 0xf3, 0x45], vec![0x02]),
+			(vec![0x01, 0xf3, 0xf5], vec![0x03]),
+		]));
+	}
+
+	#[test]
+	fn insert_big_value() {
+		let big_value0 = b"00000000000000000000000000000000";
+		let big_value1 = b"11111111111111111111111111111111";
+
+		let mut t = TrieDB::new_memory();
+		t.insert(&[0x01u8, 0x23], big_value0);
+		t.insert(&[0x11u8, 0x23], big_value1);
+		assert_eq!(*t.root(), trie_root(vec![
+			(vec![0x01u8, 0x23], big_value0.to_vec()),
+			(vec![0x11u8, 0x23], big_value1.to_vec())
+		]));
+	}
+
+	#[test]
+	fn insert_duplicate_value() {
+		let big_value = b"00000000000000000000000000000000";
+
+		let mut t = TrieDB::new_memory();
+		t.insert(&[0x01u8, 0x23], big_value);
+		t.insert(&[0x11u8, 0x23], big_value);
+		assert_eq!(*t.root(), trie_root(vec![
+			(vec![0x01u8, 0x23], big_value.to_vec()),
+			(vec![0x11u8, 0x23], big_value.to_vec())
+		]));
+	}
 }
+