From a68d8ff586209df2d2492c7de19d3d6e787abc4d Mon Sep 17 00:00:00 2001
From: wborgeaud <williamborgeaud@gmail.com>
Date: Wed, 13 Jul 2022 18:54:43 +0200
Subject: [PATCH] Avoid duplicate macros

---
 evm/src/cpu/kernel/assembler.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/evm/src/cpu/kernel/assembler.rs b/evm/src/cpu/kernel/assembler.rs
index 179e9367..bef01d85 100644
--- a/evm/src/cpu/kernel/assembler.rs
+++ b/evm/src/cpu/kernel/assembler.rs
@@ -67,7 +67,8 @@ fn find_macros(files: &[File]) -> HashMap<String, Macro> {
                     params: params.clone(),
                     items: items.clone(),
                 };
-                macros.insert(name.clone(), _macro);
+                let old = macros.insert(name.clone(), _macro);
+                assert!(old.is_none(), "Duplicate macro: {name}");
             }
         }
     }