Move out of too-croweded bank.rs to proper file

runtime/src/bank.rs

@@ -78,7 +78,7 @@ use {
         status_cache::{SlotDelta, StatusCache},
         storable_accounts::StorableAccounts,
         system_instruction_processor::{get_system_account_kind, SystemAccountKind},
-        transaction_batch::TransactionBatch,
+        transaction_batch::{IntoCowForSanitizedTransaction, TransactionBatch},
         transaction_error_metrics::TransactionErrorMetrics,
         vote_account::{VoteAccount, VoteAccountsHashMap},
     },
@@ -1198,24 +1198,6 @@ impl WorkingSlot for Bank {
     }
 }
 
-pub trait IntoCowForSanitizedTransaction<'a>:
-    'a + Clone + std::borrow::Borrow<SanitizedTransaction>
-{
-    fn into_cow(self) -> Cow<'a, [SanitizedTransaction]>;
-}
-
-impl<'a> IntoCowForSanitizedTransaction<'a> for SanitizedTransaction {
-    fn into_cow(self) -> Cow<'a, [SanitizedTransaction]> {
-        Cow::Owned(vec![self])
-    }
-}
-
-impl<'a> IntoCowForSanitizedTransaction<'a> for &'a SanitizedTransaction {
-    fn into_cow(self) -> Cow<'a, [SanitizedTransaction]> {
-        Cow::Borrowed(std::slice::from_ref(self))
-    }
-}
-
 impl Bank {
     pub fn default_for_tests() -> Self {
         Self::default_with_accounts(Accounts::default_for_tests())

runtime/src/transaction_batch.rs

@@ -55,6 +55,24 @@ impl<'a, 'b> Drop for TransactionBatch<'a, 'b> {
     }
 }
 
+pub trait IntoCowForSanitizedTransaction<'a>:
+    'a + Clone + std::borrow::Borrow<SanitizedTransaction>
+{
+    fn into_cow(self) -> Cow<'a, [SanitizedTransaction]>;
+}
+
+impl<'a> IntoCowForSanitizedTransaction<'a> for SanitizedTransaction {
+    fn into_cow(self) -> Cow<'a, [SanitizedTransaction]> {
+        Cow::Owned(vec![self])
+    }
+}
+
+impl<'a> IntoCowForSanitizedTransaction<'a> for &'a SanitizedTransaction {
+    fn into_cow(self) -> Cow<'a, [SanitizedTransaction]> {
+        Cow::Borrowed(std::slice::from_ref(self))
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use {