Fixing clippy warnings

ethcore/src/extras.rs

@@ -35,13 +35,13 @@ pub enum ExtrasIndex {
 	BlocksBlooms = 4,
 	/// Block receipts index
 	BlockReceipts = 5,
-} 
+}
 
 /// trait used to write Extras data to db
 pub trait ExtrasWritable {
 	/// Write extra data to db
 	fn put_extras<K, T>(&self, hash: &K, value: &T) where
-		T: ExtrasIndexable + Encodable, 
+		T: ExtrasIndexable + Encodable,
 		K: ExtrasSliceConvertable;
 }
 
@@ -60,9 +60,9 @@ pub trait ExtrasReadable {
 
 impl ExtrasWritable for DBTransaction {
 	fn put_extras<K, T>(&self, hash: &K, value: &T) where
-		T: ExtrasIndexable + Encodable, 
+		T: ExtrasIndexable + Encodable,
 		K: ExtrasSliceConvertable {
-		
+
 		self.put(&hash.to_extras_slice(T::extras_index()), &encode(value)).unwrap()
 	}
 }
@@ -215,6 +215,12 @@ pub struct BlocksBlooms {
 	pub blooms: [H2048; 16],
 }
 
+impl Default for BlocksBlooms {
+	fn default() -> Self {
+		BlocksBlooms::new()
+	}
+}
+
 impl BlocksBlooms {
 	pub fn new() -> Self {
 		BlocksBlooms { blooms: unsafe { ::std::mem::zeroed() }}

ethcore/src/lib.rs

@@ -25,6 +25,8 @@
 #![cfg_attr(all(nightly, feature="dev"), allow(match_bool))]
 // Keeps consistency (all lines with `.clone()`) and helpful when changing ref to non-ref.
 #![cfg_attr(all(nightly, feature="dev"), allow(clone_on_copy))]
+// In most cases it expresses function flow better
+#![cfg_attr(all(nightly, feature="dev"), allow(if_not_else))]
 
 //! Ethcore library
 //!

ethcore/src/substate.rs

@@ -31,6 +31,12 @@ pub struct Substate {
 	pub contracts_created: Vec<Address>
 }
 
+impl Default for Substate {
+	fn default() -> Self {
+		Substate::new()
+	}
+}
+
 impl Substate {
 	/// Creates new substate.
 	pub fn new() -> Self {
@@ -67,8 +73,8 @@ mod tests {
 		let mut sub_state = Substate::new();
 		sub_state.contracts_created.push(address_from_u64(1u64));
 		sub_state.logs.push(LogEntry {
-			address: address_from_u64(1u64), 
-			topics: vec![], 
+			address: address_from_u64(1u64),
+			topics: vec![],
 			data: vec![]
 		});
 		sub_state.sstore_clears_count = x!(5);
@@ -77,8 +83,8 @@ mod tests {
 		let mut sub_state_2 = Substate::new();
 		sub_state_2.contracts_created.push(address_from_u64(2u64));
 		sub_state_2.logs.push(LogEntry {
-			address: address_from_u64(1u64), 
-			topics: vec![], 
+			address: address_from_u64(1u64),
+			topics: vec![],
 			data: vec![]
 		});
 		sub_state_2.sstore_clears_count = x!(7);