lib/haskell.rb in haskell-1.0.0 vs lib/haskell.rb in haskell-1.0.1

@@ -1,48 +1,45 @@
 module Haskell
   # TODO:
   class HaskellCompileError < StandardError; end
 
   class << self
-    def invoke_sandbox!
-      file_path = File.expand_path('../', __FILE__)
-      $sandbox_path = "#{file_path}/haskell_executing_sandbox"
-      FileUtils.mkdir($sandbox_path) unless Dir.exist?($sandbox_path)
+    def invoke_sandbox!(dir_path)
+      @@sandbox_path = "#{dir_path}/haskell_executing_sandbox"
+      FileUtils.mkdir(@@sandbox_path) unless Dir.exist?(@@sandbox_path)
     end
 
     def revoke_sandbox!
-      FileUtils.rm_rf($sandbox_path)
+      FileUtils.rm_rf(@@sandbox_path)
     end
 
     def compile(hs_code)
-      FileUtils.touch("#{$sandbox_path}/COMPILING")
+      FileUtils.touch("#{@@sandbox_path}/COMPILING")
       #TODO: need inform user prefer message
       Thread.abort_on_exception = true
       Thread.new do
         begin
           executable_code = executable_code(hs_code)
           puts_notation(executable_code)
-          File.write("#{$sandbox_path}/tmp.hs", executable_code)
-          Kernel.system("ghc #{$sandbox_path}/tmp.hs")
+          File.write("#{@@sandbox_path}/tmp.hs", executable_code)
+          Kernel.system("ghc #{@@sandbox_path}/tmp.hs")
           raise HaskellCompileError unless compiled?
         ensure
-          FileUtils.rm("#{$sandbox_path}/COMPILING")
+          FileUtils.rm("#{@@sandbox_path}/COMPILING")
         end
       end
-    rescue
-      raise "Something wrong...https://github.com/Azabuhs/Ruby/issues"
     end
 
     def compiling?
-      File.exist?("#{$sandbox_path}/COMPILING")
+      File.exist?("#{@@sandbox_path}/COMPILING")
     end
 
     def compiled?
-      File.exist?("#{$sandbox_path}/tmp")
+      File.exist?("#{@@sandbox_path}/tmp")
     end
 
     def execute
-      `#{$sandbox_path}/tmp`.gsub(/\n\z/, '')
+      `#{@@sandbox_path}/tmp`.gsub(/\n\z/, '')
     end
 
   private
 
     def executable_code(hs_code)