Pattern matching pin operator against expression [Feature #17411]

This commit is based on the patch by @nobu.

1 files changed, 23 insertions, 0 deletions

diff --git a/test/ruby/test_pattern_matching.rb b/test/ruby/test_pattern_matching.rb
index b18ef68316..c494550574 100644
--- a/test/ruby/test_pattern_matching.rb
+++ b/test/ruby/test_pattern_matching.rb
@@ -402,6 +402,29 @@ END
     end
   end
 
+  def test_pin_operator_expr_pattern
+    assert_block do
+      case 'abc'
+        in ^(/a/)
+        true
+      end
+    end
+
+    assert_block do
+      case {name: '2.6', released_at: Time.new(2018, 12, 25)}
+        in {released_at: ^(Time.new(2010)..Time.new(2020))}
+        true
+      end
+    end
+
+    assert_block do
+      case 0
+      in ^(0+0)
+        true
+      end
+    end
+  end
+
   def test_array_pattern
     assert_block do
       [[0], C.new([0])].all? do |i|