Short circuit token::transfer if amount is zero

anoma · Mar 30, 2023 · 626548d · 626548d
1 parent c2d6105
commit 626548d
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/core/src/ledger/storage_api/token.rs b/core/src/ledger/storage_api/token.rs
@@ -33,6 +33,9 @@ pub fn transfer<S>(
 where
     S: StorageRead + StorageWrite,
 {
+    if amount.is_zero() {
+        return Ok(());
+    }
     let src_key = token::balance_key(token, src);
     let src_balance = read_balance(storage, token, src)?;
     match src_balance.checked_sub(amount) {