From 8e151ed7f0cedb2b91d942c8b83f9195a1850092 Mon Sep 17 00:00:00 2001
From: Jon Roberts <jon@emptyflask.net>
Date: Fri, 14 Jul 2023 10:53:26 -0500
Subject: [PATCH 1/2] Allow nested settings to default to `Undefined`

---
 lib/dry/configurable/dsl.rb                        | 2 +-
 spec/integration/dry/configurable/defaults_spec.rb | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/dry/configurable/dsl.rb b/lib/dry/configurable/dsl.rb
index d2f7aca9..cdd8fd79 100644
--- a/lib/dry/configurable/dsl.rb
+++ b/lib/dry/configurable/dsl.rb
@@ -38,7 +38,7 @@ def setting(name, **options, &block) # rubocop:disable Metrics/AbcSize, Metrics/
         node = [:setting, [name.to_sym, options]]
 
         if block
-          ast << [:nested, [node, DSL.new(&block).ast]]
+          ast << [:nested, [node, DSL.new(**@options, &block).ast]]
         else
           ast << node
         end
diff --git a/spec/integration/dry/configurable/defaults_spec.rb b/spec/integration/dry/configurable/defaults_spec.rb
index ae2a3c55..d80b7b24 100644
--- a/spec/integration/dry/configurable/defaults_spec.rb
+++ b/spec/integration/dry/configurable/defaults_spec.rb
@@ -8,11 +8,15 @@
       setting :foo
       setting :bar, constructor: -> v { v.upcase }
       setting :baz, default: "baz", constructor: -> v { v.upcase }
+      setting :qux do
+        setting :quux
+      end
     end
 
     expect(klass.config.foo).to be(Dry::Configurable::Undefined)
     expect(klass.config.bar).to be(Dry::Configurable::Undefined)
     expect(klass.config.baz).to eq "BAZ"
+    expect(klass.config.qux.quux).to be(Dry::Configurable::Undefined)
 
     klass.configure do |config|
       config.foo = "foo"

From a908bc8dcaaf7591b54a0801b3ca39e3ae79b8ba Mon Sep 17 00:00:00 2001
From: Jon Roberts <jon@emptyflask.net>
Date: Fri, 14 Jul 2023 11:16:17 -0500
Subject: [PATCH 2/2] unfreeze immutable regex, for rubocop

---
 lib/dry/configurable/dsl.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/dry/configurable/dsl.rb b/lib/dry/configurable/dsl.rb
index cdd8fd79..20facea5 100644
--- a/lib/dry/configurable/dsl.rb
+++ b/lib/dry/configurable/dsl.rb
@@ -6,7 +6,7 @@ module Configurable
     #
     # @api private
     class DSL
-      VALID_NAME = /\A[a-z_]\w*\z/i.freeze
+      VALID_NAME = /\A[a-z_]\w*\z/i
 
       attr_reader :compiler