fix rubocop Style/Alias cop

.rubocop_rubyzip.yml

@@ -61,11 +61,6 @@ Metrics/PerceivedComplexity:
 Style/AccessorMethodName:
   Enabled: false
 
-# Offense count: 23
-# Cop supports --auto-correct.
-Style/Alias:
-  Enabled: false
-
 # Offense count: 3
 # Cop supports --auto-correct.
 Style/AlignArray:

lib/zip/entry.rb

@@ -83,7 +83,7 @@ module Zip
       end
     end
 
-    alias :mtime :time
+    alias_method :mtime, :time
 
     def time=(value)
       unless @extra.member?('UniversalTime') || @extra.member?('NTFS')

lib/zip/entry_set.rb

@@ -23,13 +23,13 @@ module Zip
       @entry_set[to_key(entry)] = entry
     end
 
-    alias :push :<<
+    alias_method :push, :<<
 
     def size
       @entry_set.size
     end
 
-    alias :length :size
+    alias_method :length, :size
 
     def delete(entry)
       if @entry_set.delete(to_key(entry))

lib/zip/extra_field.rb

@@ -69,7 +69,7 @@ module Zip
       ordered_values.map! { |v| v.to_local_bin.force_encoding('BINARY') }.join
     end
 
-    alias :to_s :to_local_bin
+    alias_method :to_s, :to_local_bin
 
     def to_c_dir_bin
       ordered_values.map! { |v| v.to_c_dir_bin.force_encoding('BINARY') }.join
@@ -83,8 +83,8 @@ module Zip
       to_local_bin.bytesize
     end
 
-    alias :length :local_size
-    alias :size :local_size
+    alias_method :length, :local_size
+    alias_method :size, :local_size
   end
 end
 

lib/zip/filesystem.rb

@@ -183,26 +183,26 @@ module Zip
       def exists?(fileName)
         expand_path(fileName) == "/" || @mappedZip.find_entry(fileName) != nil
       end
-      alias :exist? :exists?
+      alias_method :exist?, :exists?
 
       # Permissions not implemented, so if the file exists it is accessible
-      alias owned?           exists?
-      alias grpowned?        exists?
+      alias_method :owned?,           :exists?
+      alias_method :grpowned?,        :exists?
 
       def readable?(fileName)
         unix_mode_cmp(fileName, 0444)
       end
-      alias readable_real?   readable?
+      alias_method :readable_real?,   :readable?
 
       def writable?(fileName)
         unix_mode_cmp(fileName, 0222)
       end
-      alias writable_real?   writable?
+      alias_method :writable_real?,   :writable?
 
       def executable?(fileName)
         unix_mode_cmp(fileName, 0111)
       end
-      alias executable_real? executable?
+      alias_method :executable_real?, :executable?
 
       def setuid?(fileName)
         unix_mode_cmp(fileName, 04000)
@@ -385,7 +385,7 @@ module Zip
         ZipFsStat.new(self, fileName)
       end
 
-      alias lstat stat
+      alias_method :lstat, :stat
 
       def readlines(fileName)
         open(fileName) { |is| is.readlines }
@@ -417,7 +417,7 @@ module Zip
         @mappedZip.rename(fileToRename, newName) { true }
       end
 
-      alias :unlink :delete
+      alias_method :unlink, :delete
 
       def expand_path(aPath)
         @mappedZip.expand_path(aPath)
@@ -456,7 +456,7 @@ module Zip
       end
 
       def pwd; @mappedZip.pwd; end
-      alias getwd pwd
+      alias_method :getwd, :pwd
 
       def chdir(aDirectoryName)
         unless @file.stat(aDirectoryName).directory?
@@ -496,8 +496,8 @@ module Zip
         end
         @mappedZip.remove(entryName)
       end
-      alias rmdir  delete
-      alias unlink delete
+      alias_method :rmdir,  :delete
+      alias_method :unlink, :delete
 
       def mkdir(entryName, permissionInt = 0755)
         @mappedZip.mkdir(entryName, permissionInt)

lib/zip/inflater.rb

@@ -33,8 +33,8 @@ module Zip
       @output_buffer.empty? && internal_input_finished?
     end
 
-    alias :eof :input_finished?
-    alias :eof? :input_finished?
+    alias_method :eof, :input_finished?
+    alias_method :eof?, :input_finished?
 
     private
 

lib/zip/input_stream.rb

@@ -86,7 +86,7 @@ module Zip
       @output_buffer.empty? && @decompressor.eof
     end
 
-    alias :eof? :eof
+    alias_method :eof?, :eof
 
     class << self
       # Same as #initialize but if a block is passed the opened

lib/zip/null_decompressor.rb

@@ -18,7 +18,7 @@ module Zip
       true
     end
 
-    alias :eof? :eof
+    alias_method :eof?, :eof
   end
 end
 

lib/zip/pass_thru_decompressor.rb

@@ -31,8 +31,8 @@ module Zip
       @read_so_far >= @chars_to_read
     end
 
-    alias :eof :input_finished?
-    alias :eof? :input_finished?
+    alias_method :eof, :input_finished?
+    alias_method :eof?, :input_finished?
   end
 end