vm.c: fix a half-baked implementation of `OP_SETIDX`; ref #5608

a42b676a · Yukihiro "Matz" Matsumoto · 5774a7a3 · a42b676a
Unverified Commit a42b676a authored Dec 20, 2021 by Yukihiro "Matz" Matsumoto
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src/vm.c src/vm.c +2 -2

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--- a/src/vm.c
+++ b/src/vm.c
@@ -1383,7 +1383,6 @@ RETRY_TRY_BLOCK:
        break;
      default:
      getidx_fallback:
-        c = 1;
        mid = MRB_OPSYM(aref);
        goto L_SEND_SYM;
      }
@@ -1393,7 +1392,8 @@ RETRY_TRY_BLOCK:
    CASE(OP_SETIDX, B) {
      c = 2;
      mid = MRB_OPSYM(aset);
-      goto L_SEND_SYM;
+      SET_NIL_VALUE(regs[a+3]);
+      goto L_SENDB_SYM;
    }

    CASE(OP_GETCONST, BB) {