remove the parse code and fix the rest to work with the gem (from git for now)

lib/ast/basic_expressions.rb

@@ -3,67 +3,31 @@
 module Ast
 
   class IntegerExpression < Expression
-    attr_reader :value
-    def initialize val
-      @value = val
-    end
-    def inspect
-      self.class.name + ".new(" + value.to_s+ ")"
-    end
-    def to_s
-      value.to_s
-    end
+#    attr_reader :value
     def compile context , into
       Vm::IntegerConstant.new value
     end
-    def attributes
-      [:value]
-    end
   end
 
   class NameExpression < Expression
-    attr_reader  :name
-    def initialize name
-      @name = name.to_sym
-    end
+#    attr_reader  :name
+
     # compiling a variable resolves it. 
     # if it wasn't defined, nli is returned 
     def compile context , into
       context.locals[name]
     end
-    def inspect
-      "#{self.class.name}.new(#{name})"
-    end
-    def to_s
-      name.to_s
-    end
-    def attributes
-      [:name]
-    end
   end
 
   class ModuleName < NameExpression
   end
 
   class StringExpression < Expression
-    attr_reader  :string
-    def initialize str
-      @string = str
-    end
-    def inspect
-      self.class.name + '.new("' + string + '")'
-    end
-    def to_s
-      '"' + string.to_s + '"'
-    end
+#    attr_reader  :string
     def compile context , into
       value = Vm::StringConstant.new(string)
       context.object_space.add_object value 
       value
     end
-    def attributes
-      [:string]
-    end
   end
-
 end