https://git.ruby-lang.org/ruby.git/commit/?id=2bdbdc1580

From 2bdbdc1580f52dc8d70a71b824238e0f20342dca Mon Sep 17 00:00:00 2001
From: Koichi Sasada <ko1@a...>
Date: Tue, 20 Oct 2020 11:21:49 +0900
Subject: add Ractor.shareable?(obj)

This method returns obj is shareable or not.

diff --git a/ractor.rb b/ractor.rb
index 78980b2..c825fbe 100644
--- a/ractor.rb
+++ b/ractor.rb
@@ -166,4 +166,11 @@ class Ractor https://github.com/ruby/ruby/blob/trunk/ractor.rb#L166
     close_incoming
     close_outgoing
   end
+
+  # utility method
+  def self.shareable? obj
+    __builtin_cexpr! %q{
+      rb_ractor_shareable_p(obj) ? Qtrue : Qfalse;
+    }
+  end
 end
-- 
cgit v0.10.2


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