fix: safe match for next base fee (#1399)

alloy-rs · Sep 30, 2024 · 16dbd30 · 16dbd30
1 parent 35b1507
commit 16dbd30
Showing 1 changed file with 6 additions and 5 deletions.
diff --git a/crates/eips/src/eip1559/helpers.rs b/crates/eips/src/eip1559/helpers.rs
@@ -44,17 +44,18 @@ pub fn calc_next_block_base_fee(
                 + (core::cmp::max(
                     // Ensure a minimum increase of 1.
                     1,
-                    base_fee * (gas_used - gas_target)
-                        / (gas_target * base_fee_params.max_change_denominator as u64),
-                ))
+                    base_fee as u128 * (gas_used - gas_target) as u128
+                        / (gas_target as u128 * base_fee_params.max_change_denominator),
+                ) as u64)
         }
         // If the gas used in the current block is less than the gas target, calculate a new
         // decreased base fee.
         core::cmp::Ordering::Less => {
             // Calculate the decrease in base fee based on the formula defined by EIP-1559.
             base_fee.saturating_sub(
-                base_fee * (gas_target - gas_used)
-                    / (gas_target * base_fee_params.max_change_denominator as u64),
+                (base_fee as u128 * (gas_target - gas_used) as u128
+                    / (gas_target as u128 * base_fee_params.max_change_denominator))
+                    as u64,
             )
         }
     }