fix: comments

crates/primitives/src/proofs.rs

@@ -180,6 +180,12 @@ mod tests {
         assert_eq!(block.transactions_root, tx_root, "Must be the same");
     }
 
+    /// Tests that the receipt root is computed correctly for the regolith block.
+    /// This was implemented due to a minor bug in op-geth and op-erigon where in
+    /// the Regolith hardfork, the receipt root calculation does not include the
+    /// deposit nonce in the receipt encoding.
+    /// To fix this an op-reth patch was applied to the receipt root calculation
+    /// to strip the deposit nonce from each receipt before calculating the root.
     #[cfg(feature = "optimism")]
     #[test]
     fn check_optimism_receipt_root() {

crates/primitives/src/transaction/tx_type.rs

@@ -79,7 +79,7 @@ impl Compact for TxType {
         }
     }
 
-    // For backwards compatibility purposesm only 2 bits of the type are encoded in the identifier
+    // For backwards compatibility purposes only 2 bits of the type are encoded in the identifier
     // parameter. In the case of a 3, the full transaction type is read from the buffer as a
     // single byte.
     fn from_compact(mut buf: &[u8], identifier: usize) -> (Self, &[u8]) {

crates/revm/src/executor.rs

@@ -204,6 +204,8 @@ where
         // Fill revm structure.
         fill_tx_env(&mut self.evm.env.tx, transaction, sender);
 
+        // In order to support contract creation through deposit transactions,
+        // the tx nonce must be set to the nonce of the account.
         #[cfg(feature = "optimism")]
         if transaction.is_deposit() &&
             self.chain_spec

crates/rpc/rpc/src/eth/api/block.rs

@@ -158,7 +158,7 @@ where
         let block_id = block_id.into();
 
         if block_id.is_pending() {
-            // Pending block can be fetched directly without need for caching;;
+            // Pending block can be fetched directly without need for caching
             return Ok(self.provider().pending_block()?.map(|block| block.body.len()))
         }