From 19c981bae51c5c55d42e8829e5162cf7fb20148e Mon Sep 17 00:00:00 2001
From: kojix2 <2xijok@gmail.com>
Date: Wed, 29 Jun 2022 15:14:20 +0900
Subject: [PATCH 1/2] Fix Gnuplot issues in Ruby 2.7 (#321)

Supported by @znz
---
 lib/iruby/kernel.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/iruby/kernel.rb b/lib/iruby/kernel.rb
index ffe581c..3bc68d0 100644
--- a/lib/iruby/kernel.rb
+++ b/lib/iruby/kernel.rb
@@ -218,7 +218,7 @@ def execute_request(msg)
       end
 
       events.trigger(:post_execute)
-      events.trigger(:post_run_cell, result) unless silent
+      events.trigger(:post_run_cell, result, **{}) unless silent
 
       @session.send(:reply, :execute_reply, content)
     end

From 4aa44ca24a42cf690930b88da8cc0ca75aaf57d4 Mon Sep 17 00:00:00 2001
From: kojix2 <2xijok@gmail.com>
Date: Wed, 6 Jul 2022 06:44:47 +0900
Subject: [PATCH 2/2] Added comment

---
 lib/iruby/kernel.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/iruby/kernel.rb b/lib/iruby/kernel.rb
index 3bc68d0..a2cd652 100644
--- a/lib/iruby/kernel.rb
+++ b/lib/iruby/kernel.rb
@@ -218,6 +218,7 @@ def execute_request(msg)
       end
 
       events.trigger(:post_execute)
+      # **{} is for Ruby2.7. Gnuplot#to_hash returns an Array.
       events.trigger(:post_run_cell, result, **{}) unless silent
 
       @session.send(:reply, :execute_reply, content)