clippy: Fix small lints

components/zcash_note_encryption/src/lib.rs

@@ -1,5 +1,6 @@
 #[cfg(test)]
 mod tests {
+    #[allow(clippy::eq_op)]
     #[test]
     fn it_works() {
         assert_eq!(2 + 2, 4);

zcash_client_backend/src/zip321.rs

@@ -80,9 +80,9 @@ impl Payment {
     /// internally, so payments must be normalized prior to being passed to the comparison function
     /// returned from this method.
     #[cfg(any(test, feature = "test-dependencies"))]
-    pub(in crate::zip321) fn compare_normalized<'a, P: consensus::Parameters>(
-        params: &'a P,
-    ) -> impl Fn(&Payment, &Payment) -> Ordering + 'a {
+    pub(in crate::zip321) fn compare_normalized<P: consensus::Parameters>(
+        params: &P,
+    ) -> impl Fn(&Payment, &Payment) -> Ordering + '_ {
         move |a: &Payment, b: &Payment| {
             let a_addr = a.recipient_address.encode(params);
             let b_addr = b.recipient_address.encode(params);

zcash_history/src/node_data.rs

@@ -207,8 +207,10 @@ impl NodeData {
 #[cfg(test)]
 impl quickcheck::Arbitrary for NodeData {
     fn arbitrary<G: quickcheck::Gen>(gen: &mut G) -> Self {
-        let mut node_data = NodeData::default();
-        node_data.consensus_branch_id = 0;
+        let mut node_data = NodeData {
+            consensus_branch_id: 0,
+            ..Default::default()
+        };
         gen.fill_bytes(&mut node_data.subtree_commitment[..]);
         node_data.start_time = gen.next_u32();
         node_data.end_time = gen.next_u32();

zcash_history/src/tree.rs

@@ -651,7 +651,7 @@ mod tests {
         }
 
         fn leaf_count(number: u32) -> TestResult {
-            if number > 1024 * 1024 || number < 3 {
+            if !(3..=1024 * 1024).contains(&number) {
                 TestResult::discard()
             } else {
                 let mut tree = initial();
@@ -666,7 +666,7 @@ mod tests {
         }
 
         fn parity(number: u32) -> TestResult {
-            if number > 2048 * 2048 || number < 3 {
+            if !(3..=2048 * 2048).contains(&number) {
                 TestResult::discard()
             } else {
                 let mut tree = initial();

zcash_primitives/src/transaction/components/amount.rs

@@ -41,7 +41,7 @@ impl Amount {
     ///
     /// Returns an error if the amount is outside the range `{0..MAX_MONEY}`.
     pub fn from_nonnegative_i64(amount: i64) -> Result<Self, ()> {
-        if 0 <= amount && amount <= MAX_MONEY {
+        if (0..=MAX_MONEY).contains(&amount) {
             Ok(Amount(amount))
         } else {
             Err(())

zcash_primitives/src/transaction/sighash.rs

@@ -227,11 +227,11 @@ impl<'a> SignableInput<'a> {
     }
 }
 
-pub fn signature_hash_data<'a>(
+pub fn signature_hash_data(
     tx: &TransactionData,
     consensus_branch_id: consensus::BranchId,
     hash_type: u32,
-    signable_input: SignableInput<'a>,
+    signable_input: SignableInput<'_>,
 ) -> Vec<u8> {
     if has_overwinter_components(&tx.version) {
         let mut personal = [0; 16];
@@ -372,11 +372,11 @@ pub fn signature_hash_data<'a>(
     }
 }
 
-pub fn signature_hash<'a>(
+pub fn signature_hash(
     tx: &Transaction,
     consensus_branch_id: consensus::BranchId,
     hash_type: u32,
-    signable_input: SignableInput<'a>,
+    signable_input: SignableInput<'_>,
 ) -> Vec<u8> {
     signature_hash_data(tx, consensus_branch_id, hash_type, signable_input)
 }

zcash_primitives/src/zip32.rs

@@ -586,7 +586,7 @@ mod tests {
             d1: Option<[u8; 11]>,
             d2: Option<[u8; 11]>,
             dmax: Option<[u8; 11]>,
-        };
+        }
 
         // From https://github.com/zcash-hackworks/zcash-test-vectors/blob/master/sapling_zip32.py
         let test_vectors = vec![