From ecedebab2c559386c86f98be364c0e6941c2a405 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 18 May 2018 00:40:06 +0000
Subject: tool: fixed shadowing variables

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63460 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 tool/checksum.rb         | 2 +-
 tool/rbinstall.rb        | 2 +-
 tool/transcode-tblgen.rb | 6 +++---
 3 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'tool')

diff --git a/tool/checksum.rb b/tool/checksum.rb
index 0de54a314d..3b41aedcfc 100755
--- a/tool/checksum.rb
+++ b/tool/checksum.rb
@@ -67,6 +67,6 @@ class Checksum
   def self.update(argv)
     k = new(VPath.new)
     k.source, k.target, *argv = k.def_options.parse(*argv)
-    k.update {|k| yield(k, *argv)}
+    k.update {|_| yield(_, *argv)}
   end
 end
diff --git a/tool/rbinstall.rb b/tool/rbinstall.rb
index 9e935bdb47..5a55b39add 100755
--- a/tool/rbinstall.rb
+++ b/tool/rbinstall.rb
@@ -590,7 +590,7 @@ install?(:local, :comm, :man) do
           STDIN.reopen(f)
           begin
             destfile << suffix
-            IO.popen(compress) {|f| f.read}
+            IO.popen(compress, &:read)
           ensure
             STDIN.reopen(stdin)
             stdin.close
diff --git a/tool/transcode-tblgen.rb b/tool/transcode-tblgen.rb
index 5134a49b43..156b2de197 100644
--- a/tool/transcode-tblgen.rb
+++ b/tool/transcode-tblgen.rb
@@ -145,7 +145,7 @@ class ActionMap
                 else
                   b = $1.to_i(16)
                   e = $2.to_i(16)
-                  b.upto(e) {|c| set[c] = true }
+                  b.upto(e) {|_| set[_] = true }
                 end
               }
               i = nil
@@ -297,10 +297,10 @@ class ActionMap
         raise ArgumentError, "ambiguous pattern: #{prefix}" if min.length != prefix.length
         h[action] = true
       end
-      region_rects.each {|min, max, action|
+      for min, _, action in region_rects
         raise ArgumentError, "ambiguous pattern: #{prefix}" if !min.empty?
         h[action] = true
-      }
+      end
       tree = Action.new(block.call(prefix, h.keys))
       h.clear
     else
-- 
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