From 12ac70ca4fb74ea21d0e33a382138ce35e2d4ed5 Mon Sep 17 00:00:00 2001
From: Wodann <Wodann@users.noreply.github.com>
Date: Fri, 8 Mar 2024 02:49:12 -0600
Subject: [PATCH] fix: gas cost calculation (#1166)

* fix: gas cost calculation

* Update crates/revm/src/inspector/gas.rs

Co-authored-by: Matthias Seitz <matthias.seitz@outlook.de>

* Update crates/revm/src/inspector/gas.rs

Co-authored-by: Matthias Seitz <matthias.seitz@outlook.de>

* fix: formatting
---
 crates/revm/src/inspector/gas.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/crates/revm/src/inspector/gas.rs b/crates/revm/src/inspector/gas.rs
index 67e67ef8eb1..d22ae0451e8 100644
--- a/crates/revm/src/inspector/gas.rs
+++ b/crates/revm/src/inspector/gas.rs
@@ -40,8 +40,9 @@ impl<DB: Database> Inspector<DB> for GasInspector {
         interp: &mut crate::interpreter::Interpreter,
         _context: &mut EvmContext<DB>,
     ) {
-        let last_gas = core::mem::replace(&mut self.gas_remaining, interp.gas.remaining());
-        self.last_gas_cost = last_gas.saturating_sub(self.last_gas_cost);
+        let last_gas_remaining =
+            core::mem::replace(&mut self.gas_remaining, interp.gas.remaining());
+        self.last_gas_cost = last_gas_remaining.saturating_sub(self.gas_remaining);
     }
 
     fn call_end(