[PATCH 2/5] deflater: avoid wasting an ivar slot on @closed

[Eric Wong <e@80x24.org>]

We can merely set the @body to nil ensure we do not call close
on the @body, twice.  Saving an ivar slot can save 8 bytes
per object at minimum, and this makes me feel more comfortable
about using another ivar for the next commit.
---
 lib/rack/deflater.rb | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/rack/deflater.rb b/lib/rack/deflater.rb
index 9b798ba..d575adf 100644
--- a/lib/rack/deflater.rb
+++ b/lib/rack/deflater.rb
@@ -70,7 +70,6 @@ module Rack
       def initialize(body, mtime)
         @body = body
         @mtime = mtime
-        @closed = false
       end
 
       def each(&block)
@@ -91,9 +90,8 @@ module Rack
       end
 
       def close
-        return if @closed
-        @closed = true
         @body.close if @body.respond_to?(:close)
+        @body = nil
       end
     end
 
-- 
EW

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