[ruby/matrix] Make frozen matrices Ractor shareable

1 files changed, 5 insertions, 1 deletions

diff --git a/lib/matrix.rb b/lib/matrix.rb
index c6193ebee1..32f1e233ce 100644
--- a/lib/matrix.rb
+++ b/lib/matrix.rb
@@ -532,7 +532,8 @@ class Matrix
   alias map! collect!
 
   def freeze
-    @rows.freeze
+    @rows.each(&:freeze).freeze
+
     super
   end
 
@@ -2141,6 +2142,9 @@ class Vector
     all?(&:zero?)
   end
 
+  #
+  # Makes the matrix frozen and Ractor-shareable
+  #
   def freeze
     @elements.freeze
     super