Add the modifies_memory macro (#1270)

* feat: add modifies_memory macro * refactor
bluealloy · Apr 7, 2024 · 11e819c · 11e819c
1 parent c1eb0e6
commit 11e819c
Showing 1 changed file with 22 additions and 0 deletions.
diff --git a/crates/interpreter/src/instructions/opcode.rs b/crates/interpreter/src/instructions/opcode.rs
@@ -496,6 +496,28 @@ impl OpCode {
     pub const fn get(self) -> u8 {
         self.0
     }
+
+    /// Returns true if the opcode modifies memory.
+    /// <https://bluealloy.github.io/revm/crates/interpreter/memory.html#opcodes>
+    /// <https://github.com/crytic/evm-opcodes>
+    #[inline]
+    pub const fn modifies_memory(&self) -> bool {
+        matches!(
+            *self,
+            OpCode::EXTCODECOPY
+                | OpCode::MLOAD
+                | OpCode::MSTORE
+                | OpCode::MSTORE8
+                | OpCode::MCOPY
+                | OpCode::CODECOPY
+                | OpCode::CALLDATACOPY
+                | OpCode::RETURNDATACOPY
+                | OpCode::CALL
+                | OpCode::CALLCODE
+                | OpCode::DELEGATECALL
+                | OpCode::STATICCALL
+        )
+    }
 }
 
 #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]