bit_stream.rb in hexapdf-0.7.0

- old
+ new

@@ -1,12 +1,12 @@
-# -*- encoding: utf-8 -*-
+# -*- encoding: utf-8; frozen_string_literal: true -*-
 #
 #--
 # This file is part of HexaPDF.
 #
 # HexaPDF - A Versatile PDF Creation and Manipulation Library For Ruby
-# Copyright (C) 2014-2017 Thomas Leitner
+# Copyright (C) 2014-2018 Thomas Leitner
 #
 # HexaPDF is free software: you can redistribute it and/or modify it
 # under the terms of the GNU Affero General Public License version 3 as
 # published by the Free Software Foundation with the addition of the
 # following permission added to Section 15 as permitted in Section 7(a):
@@ -42,11 +42,11 @@
     # method. The data from where these bits are read, can be set on intialization and additional
     # data can later be appended.
     class BitStreamReader
 
       # Creates a new object, optionally providing the string from where the bits should be read.
-      def initialize(data = '')
+      def initialize(data = +'')
         @data = data.force_encoding(Encoding::BINARY)
         @pos = 0
         @bit_cache = 0
         @available_bits = 0
       end
@@ -56,10 +56,10 @@
         @data.slice!(0, @pos)
         @data << str
         @pos = 0
         self
       end
-      alias :<< :append_data
+      alias << append_data
 
       # Returns the number of remaining bits that can be read.
       def remaining_bits
         (@data.length - @pos) * 8 + @available_bits
       end