https://git.ruby-lang.org/ruby.git/commit/?id=d290a02bd7

From d290a02bd7035eb186eb5c275af4e1ddc20ad47f Mon Sep 17 00:00:00 2001
From: Nobuhiro IMAI <nov@y...>
Date: Fri, 15 Jan 2021 22:00:38 +0900
Subject: [ruby/irb] handle repeated exception separately

https://github.com/ruby/irb/commit/fcf6b34bc5

diff --git a/lib/irb.rb b/lib/irb.rb
index cf53130..3f7f169 100644
--- a/lib/irb.rb
+++ b/lib/irb.rb
@@ -574,6 +574,8 @@ module IRB https://github.com/ruby/ruby/blob/trunk/lib/irb.rb#L574
             next
           end
           handle_exception(exc)
+          @context.workspace.local_variable_set(:_, exc)
+          exc = nil
         end
       end
     end
diff --git a/test/irb/test_context.rb b/test/irb/test_context.rb
index 4949502..a32b1fc 100644
--- a/test/irb/test_context.rb
+++ b/test/irb/test_context.rb
@@ -105,6 +105,24 @@ module TestIRB https://github.com/ruby/ruby/blob/trunk/test/irb/test_context.rb#L105
       $VERBOSE = verbose
     end
 
+    def test_eval_input_raise2x
+      input = TestInputMethod.new([
+        "raise 'Foo'\n",
+        "raise 'Bar'\n",
+        "_\n",
+      ])
+      irb = IRB::Irb.new(IRB::WorkSpace.new(Object.new), input)
+      out, err = capture_output do
+        irb.eval_input
+      end
+      assert_empty err
+      assert_pattern_list([
+          :*, /\(irb\):1:in `<main>': Foo \(RuntimeError\)\n/,
+          :*, /\(irb\):2:in `<main>': Bar \(RuntimeError\)\n/,
+          :*, /#<RuntimeError: Bar>\n/,
+        ], out)
+    end
+
     def test_eval_object_without_inspect_method
       verbose, $VERBOSE = $VERBOSE, nil
       all_assertions do |all|
-- 
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