From 150ed44d87e2d5b00f38019a487e05a67a303482 Mon Sep 17 00:00:00 2001
From: Peter Zhu <peter@peterzhu.ca>
Date: Mon, 27 Nov 2023 11:30:47 -0500
Subject: Fix compaction during ary_make_partial

The ary_make_shared call may allocate, which can trigger a GC
compaction. This can cause the array to be embedded because it has a
length of 0.
---
 tool/lib/envutil.rb | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'tool')

diff --git a/tool/lib/envutil.rb b/tool/lib/envutil.rb
index 1ca76d17a7..e47523a24b 100644
--- a/tool/lib/envutil.rb
+++ b/tool/lib/envutil.rb
@@ -245,6 +245,15 @@ module EnvUtil
   end
   module_function :under_gc_stress
 
+  def under_gc_compact_stress(&block)
+    auto_compact = GC.auto_compact
+    GC.auto_compact = true
+    under_gc_stress(&block)
+  ensure
+    GC.auto_compact = auto_compact
+  end
+  module_function :under_gc_compact_stress
+
   def with_default_external(enc)
     suppress_warning { Encoding.default_external = enc }
     yield
-- 
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