https://git.ruby-lang.org/ruby.git/commit/?id=9ed6875f93

From 9ed6875f9310be737ceca9b3034bbb34f1498068 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Sat, 19 Mar 2022 22:42:54 +0900
Subject: extlibs.rb: Enclose `Vars` in `ExtLibs` class

To get rid of an unnecessary top-level constant for the case using
as a library.
---
 tool/extlibs.rb | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/tool/extlibs.rb b/tool/extlibs.rb
index ff1d154667..c6c6d0cf65 100755
--- a/tool/extlibs.rb
+++ b/tool/extlibs.rb
@@ -7,21 +7,21 @@ require 'digest' https://github.com/ruby/ruby/blob/trunk/tool/extlibs.rb#L7
 require_relative 'downloader'
 require_relative 'lib/colorize'
 
-class Vars < Hash
-  def pattern
-    /\$\((#{Regexp.union(keys)})\)/
-  end
+class ExtLibs
+  class Vars < Hash
+    def pattern
+      /\$\((#{Regexp.union(keys)})\)/
+    end
 
-  def expand(str)
-    if empty?
-      str
-    else
-      str.gsub(pattern) {self[$1]}
+    def expand(str)
+      if empty?
+        str
+      else
+        str.gsub(pattern) {self[$1]}
+      end
     end
   end
-end
 
-class ExtLibs
   def initialize(mode = :all, cache_dir: nil)
     @mode = mode
     @cache_dir = cache_dir
-- 
cgit v1.2.1


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