From 017cc54e171ed5bbecb346a887914dad7cb5918f Mon Sep 17 00:00:00 2001
From: Naoto Ono <onoto1998@gmail.com>
Date: Thu, 17 Nov 2022 00:09:00 +0900
Subject: [PATCH] add Ruby demo

---
 demos/ruby/README.md                     |  7 +++++++
 demos/ruby/src/demo_custom_visualizer.rb | 18 ++++++++++++++++++
 demos/ruby/src/demo_random_walks.rb      | 12 ++++++++++++
 extension/README.md                      |  2 +-
 4 files changed, 38 insertions(+), 1 deletion(-)
 create mode 100644 demos/ruby/README.md
 create mode 100644 demos/ruby/src/demo_custom_visualizer.rb
 create mode 100644 demos/ruby/src/demo_random_walks.rb

diff --git a/demos/ruby/README.md b/demos/ruby/README.md
new file mode 100644
index 0000000..0f5f2a6
--- /dev/null
+++ b/demos/ruby/README.md
@@ -0,0 +1,7 @@
+# Ruby Demos
+
+To visualize Ruby objects, you need to install [debugvisualizer.gem](https://github.com/ono-max/debugvisualizer).
+
+Install the gem by executing:
+
+    $ gem install debugvisualizer
diff --git a/demos/ruby/src/demo_custom_visualizer.rb b/demos/ruby/src/demo_custom_visualizer.rb
new file mode 100644
index 0000000..16d6607
--- /dev/null
+++ b/demos/ruby/src/demo_custom_visualizer.rb
@@ -0,0 +1,18 @@
+require 'debugvisualizer'
+
+class Foo; end
+
+DebugVisualizer.register Foo do |data|
+  {
+    id: "my_visualizer",
+    name: "My Visualizer",
+    data: {
+        kind: { text: true },
+        text: "Foo"
+    }
+  }
+end
+
+f = Foo.new
+# visualize `f` here!
+binding.break
diff --git a/demos/ruby/src/demo_random_walks.rb b/demos/ruby/src/demo_random_walks.rb
new file mode 100644
index 0000000..407d183
--- /dev/null
+++ b/demos/ruby/src/demo_random_walks.rb
@@ -0,0 +1,12 @@
+data = []
+curVal = 0
+
+100.times{
+  100.times{
+    delta = rand > 0.5 ? 1 : -1
+    data << curVal
+    curVal += delta
+    # visualize `data` here and press F5(or Continue button) over and over!
+    binding.break
+  }
+}
diff --git a/extension/README.md b/extension/README.md
index 508df73..a8c5d73 100644
--- a/extension/README.md
+++ b/extension/README.md
@@ -25,7 +25,7 @@ See [demos](../demos/) for demos. These languages and debuggers are verified to
 -   C++ using `cppdbg` debug adapter: [✅ Basic Support](../demos/cpp)
 -   Swift using `lldb` debug adapter: [✅ Basic Support](../demos/swift)
 -   Rust using `lldb` debug adapter: [✅ Basic Support](../demos/rust)
--   Ruby using `rdbg` debug adapter: [✅ Basic Support]
+-   Ruby using `rdbg` debug adapter: [✅ Basic Support](../demos/ruby)
 
 All other languages and debuggers might work too.
 For languages with _Basic Support_, only JSON strings can be visualized - you must implement some logic that builds this JSON for your data structure!