From 1752e2c96490aa798b6b396c8e7f3c282b242fcb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Felix=20Bu=CC=88nemann?= <buenemann@louis.info>
Date: Mon, 30 Oct 2017 20:06:35 +0100
Subject: [PATCH] Fix unitialized instance var warnings

---
 lib/xlsxtream/io/directory.rb  | 3 ++-
 lib/xlsxtream/io/stream.rb     | 1 +
 lib/xlsxtream/io/zip_tricks.rb | 1 +
 lib/xlsxtream/workbook.rb      | 2 ++
 4 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/xlsxtream/io/directory.rb b/lib/xlsxtream/io/directory.rb
index 7becb46..14552fd 100644
--- a/lib/xlsxtream/io/directory.rb
+++ b/lib/xlsxtream/io/directory.rb
@@ -5,6 +5,7 @@ module IO
     class Directory
       def initialize(path)
         @path = Pathname(path)
+        @file = nil
       end
 
       def <<(data)
@@ -19,7 +20,7 @@ def add_file(path)
       end
 
       def close
-        @file.close if @file.respond_to? :close
+        @file.close if @file
       end
     end
   end
diff --git a/lib/xlsxtream/io/stream.rb b/lib/xlsxtream/io/stream.rb
index e49c3b8..1e06961 100644
--- a/lib/xlsxtream/io/stream.rb
+++ b/lib/xlsxtream/io/stream.rb
@@ -3,6 +3,7 @@ module IO
     class Stream
       def initialize(stream)
         @stream = stream
+        @path = nil
       end
 
       def <<(data)
diff --git a/lib/xlsxtream/io/zip_tricks.rb b/lib/xlsxtream/io/zip_tricks.rb
index 8795d38..64cfce8 100644
--- a/lib/xlsxtream/io/zip_tricks.rb
+++ b/lib/xlsxtream/io/zip_tricks.rb
@@ -5,6 +5,7 @@ module IO
     class ZipTricks
       def initialize(body)
         @streamer = ::ZipTricks::Streamer.new(body)
+        @wf = nil
       end
 
       def <<(data)
diff --git a/lib/xlsxtream/workbook.rb b/lib/xlsxtream/workbook.rb
index bcae2b2..3a23be5 100644
--- a/lib/xlsxtream/workbook.rb
+++ b/lib/xlsxtream/workbook.rb
@@ -48,8 +48,10 @@ def initialize(output, options = {})
         @file = File.open(output, 'wb')
         @io = IO::ZipTricks.new(@file)
       elsif output.respond_to? :add_file
+        @file = nil
         @io = output
       else
+        @file = nil
         @io = IO::ZipTricks.new(output)
       end
       @sst = SharedStringTable.new