From 938af8a8ff8f3031f2a6100dcba705ae5d43be0b Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Sun, 19 Sep 2021 23:17:19 +0900
Subject: vm.c: add array assertions.

---
 src/vm.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/vm.c b/src/vm.c
index b50354061..abb5d0c85 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -2540,6 +2540,7 @@ RETRY_TRY_BLOCK:
         regs[a] = splat;
       }
       else {
+        mrb_assert(mrb_type(regs[a]) == MRB_TT_ARRAY);
         mrb_ary_concat(mrb, regs[a], splat);
       }
       mrb_gc_arena_restore(mrb, ai);
@@ -2547,6 +2548,7 @@ RETRY_TRY_BLOCK:
     }
 
     CASE(OP_ARYPUSH, BB) {
+      mrb_assert(mrb_type(regs[a]) == MRB_TT_ARRAY);
       for (mrb_int i=0; i<b; i++) {
         mrb_ary_push(mrb, regs[a], regs[a+i+1]);
       }
@@ -2584,6 +2586,7 @@ RETRY_TRY_BLOCK:
     }
 
     CASE(OP_ASET, BBB) {
+      mrb_assert(mrb_type(regs[a]) == MRB_TT_ARRAY);
       mrb_ary_set(mrb, regs[b], c, regs[a]);
       NEXT;
     }
-- 
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