https://git.ruby-lang.org/ruby.git/commit/?id=985f0af257

From 985f0af2576c4b4f9f4e75dce7299ba9d55d9419 Mon Sep 17 00:00:00 2001
From: Kenta Murata <mrkn@u...>
Date: Thu, 17 Dec 2020 18:29:21 +0900
Subject: [strscan] Make strscan Ractor safe (#17)

* Make strscan Ractor safe

* Add test-unit in the development dependencies

https://github.com/ruby/strscan/commit/3c93c2bebe

diff --git a/ext/strscan/strscan.c b/ext/strscan/strscan.c
index db87818..0eb51e7 100644
--- a/ext/strscan/strscan.c
+++ b/ext/strscan/strscan.c
@@ -1571,6 +1571,10 @@ strscan_fixed_anchor_p(VALUE self) https://github.com/ruby/ruby/blob/trunk/ext/strscan/strscan.c#L1571
 void
 Init_strscan(void)
 {
+#ifdef HAVE_RB_EXT_RACTOR_SAFE
+    rb_ext_ractor_safe(true);
+#endif
+
 #undef rb_intern
     ID id_scanerr = rb_intern("ScanError");
     VALUE tmp;
diff --git a/ext/strscan/strscan.gemspec b/ext/strscan/strscan.gemspec
index 61c28a4..734d439 100644
--- a/ext/strscan/strscan.gemspec
+++ b/ext/strscan/strscan.gemspec
@@ -17,4 +17,5 @@ Gem::Specification.new do |s| https://github.com/ruby/ruby/blob/trunk/ext/strscan/strscan.gemspec#L17
 
   s.add_development_dependency "rake-compiler"
   s.add_development_dependency "benchmark-driver"
+  s.add_development_dependency "test-unit"
 end
diff --git a/test/strscan/test_ractor.rb b/test/strscan/test_ractor.rb
new file mode 100644
index 0000000..0d44242
--- /dev/null
+++ b/test/strscan/test_ractor.rb
@@ -0,0 +1,28 @@ https://github.com/ruby/ruby/blob/trunk/test/strscan/test_ractor.rb#L1
+# frozen_string_literal: true
+require 'test/unit'
+
+class TestStringScannerRactor < Test::Unit::TestCase
+  def setup
+    skip unless defined? Ractor
+  end
+
+  def test_ractor
+    assert_in_out_err([], <<-"end;", ["stra", " ", "strb", " ", "strc"], [])
+      require "strscan"
+      $VERBOSE = nil
+      r = Ractor.new do
+        s = StringScanner.new("stra strb strc", true)
+        [
+          s.scan(/\\w+/),
+          s.scan(/\\s+/),
+          s.scan(/\\w+/),
+          s.scan(/\\s+/),
+          s.scan(/\\w+/),
+          s.scan(/\\w+/),
+          s.scan(/\\w+/)
+        ]
+      end
+      puts r.take.compact
+    end;
+  end
+end
-- 
cgit v0.10.2


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