From a9a2f81e365eeef4fd157fb56cd5107f95c91163 Mon Sep 17 00:00:00 2001
From: Son Ho
Date: Sun, 7 Apr 2024 14:47:36 +0200
Subject: Improve the error messages further

---
 compiler/Interpreter.ml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'compiler/Interpreter.ml')

diff --git a/compiler/Interpreter.ml b/compiler/Interpreter.ml
index d0a54750..769e3144 100644
--- a/compiler/Interpreter.ml
+++ b/compiler/Interpreter.ml
@@ -191,6 +191,18 @@ let initialize_symbolic_context_for_fun (ctx : decls_ctx) (fdef : fun_decl) :
    * do it, and because it gives a bit of sanity.
    * *)
   let sg = fdef.signature in
+  (* Sanity check: no nested borrows, borrows in ADTs, etc. *)
+  cassert __FILE__ __LINE__
+    (List.for_all
+       (fun ty -> not (ty_has_nested_borrows ctx.type_ctx.type_infos ty))
+       (sg.output :: sg.inputs))
+    fdef.meta "Nested borrows are not supported yet";
+  cassert __FILE__ __LINE__
+    (List.for_all
+       (fun ty -> not (ty_has_adt_with_borrows ctx.type_ctx.type_infos ty))
+       (sg.output :: sg.inputs))
+    fdef.meta "ADTs containing borrows are not supported yet";
+
   (* Create the context *)
   let regions_hierarchy =
     FunIdMap.find (FRegular fdef.def_id) ctx.fun_ctx.regions_hierarchies
-- 
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