https://git.ruby-lang.org/ruby.git/commit/?id=c6d7e02b90

From c6d7e02b90f96d9bcd04edd48b7374f31c510b2a Mon Sep 17 00:00:00 2001
From: Delton Ding <dsh0416@g...>
Date: Tue, 22 Dec 2020 15:30:59 +0900
Subject: Enable `Fiber.current` and `Fiber#alive?` call inside ractor


diff --git a/cont.c b/cont.c
index 123ca33..4a9e757 100644
--- a/cont.c
+++ b/cont.c
@@ -2744,6 +2744,9 @@ ruby_Init_Continuation_body(void) https://github.com/ruby/ruby/blob/trunk/cont.c#L2744
 void
 ruby_Init_Fiber_as_Coroutine(void)
 {
+#ifdef HAVE_RB_EXT_RACTOR_SAFE
+    rb_ext_ractor_safe(true);
+#endif
     rb_define_method(rb_cFiber, "transfer", rb_fiber_m_transfer, -1);
     rb_define_method(rb_cFiber, "alive?", rb_fiber_alive_p, 0);
     rb_define_singleton_method(rb_cFiber, "current", rb_fiber_s_current, 0);
diff --git a/test/fiber/test_ractor.rb b/test/fiber/test_ractor.rb
new file mode 100644
index 0000000..6d53b61
--- /dev/null
+++ b/test/fiber/test_ractor.rb
@@ -0,0 +1,22 @@ https://github.com/ruby/ruby/blob/trunk/test/fiber/test_ractor.rb#L1
+# frozen_string_literal: true
+require "test/unit"
+require "fiber"
+
+class TestFiberCurrentRactor < Test::Unit::TestCase
+  def setup
+    skip unless defined? Ractor
+  end
+
+  def test_ractor_shareable
+    assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}")
+    begin;
+      require "fiber"
+      r = Ractor.new do
+        Fiber.new do
+          Fiber.current.class
+        end.resume
+      end
+      assert_equal(Fiber, r.take)
+    end;
+  end
+end
-- 
cgit v0.10.2


--
ML: ruby-changes@q...
Info: http://www.atdot.net/~ko1/quickml/