rename callable to CallStatement

Callable is the Method, whereas here we call the method

lib/ruby/call_statement.rb

@@ -0,0 +1,36 @@
+module Ruby
+
+  class CallStatement < Statement
+    attr_reader :name , :receiver , :arguments
+
+    def initialize(name , receiver , arguments )
+      @name , @receiver , @arguments = name , receiver , arguments
+      @arguments ||= []
+    end
+
+    def to_vool
+      statements = Vool::Statements.new([])
+      arguments = []
+      @arguments.each_with_index do |arg , index |
+        normalize_arg(arg , arguments , statements)
+      end
+      if statements.empty?
+        return vool_brother.new(@name, @receiver.to_vool , arguments)
+      else
+        statements << vool_brother.new(@name, @receiver.to_vool , arguments)
+        return statements
+      end
+    end
+
+    def normalize_arg(arg , arguments , statements)
+      if arg.is_a?(Constant) and !arg.is_a?(SendStatement)
+        arguments << arg.to_vool
+        return
+      end
+      assign = Vool::LocalAssignment.new( "tmp_#{arg.object_id}".to_sym, arg.to_vool)
+      statements << assign
+      arguments << Vool::LocalVariable.new(assign.name)
+    end
+
+  end
+end