🐐 Compiler

centvrion/ast_nodes.py

@@ -622,7 +622,9 @@ class UnaryNot(Node):
 
   def _eval(self, vtable):
     vtable, val = self.expr.eval(vtable)
-    return vtable, ValBool(not bool(val))
+    if not isinstance(val, ValBool):
+      raise CentvrionError("NON requires a boolean")
+    return vtable, ValBool(not val.value())
 
 
 class ArrayIndex(Node):
@@ -730,8 +732,6 @@ class DumStatement(Node):
       if vtable["#return"] is not None:
         break
       vtable, cond = self.test.eval(vtable)
-      if not isinstance(cond, ValBool):
-        raise CentvrionError("DVM condition must be a boolean")
     return vtable, last_val