1 files changed, 30 insertions, 0 deletions
diff --git a/ruby/types.rb b/ruby/types.rb
index c19fda4..b16e391 100644
--- a/ruby/types.rb
+++ b/ruby/types.rb
@@ -1,9 +1,30 @@
 require "env"
 
+class MalException < StandardError
+  attr_reader :data
+  def initialize(data)
+    @data = data
+  end
+end
+
 class List < Array
+    attr_accessor :meta
+    def conj(xs)
+        xs.each{|x| self.unshift(x)}
+        return self
+    end
 end
 
 class Vector < Array
+    attr_accessor :meta
+    def conj(xs)
+        self.push(*xs)
+        return self
+    end
+end
+
+class Hash # re-open and add meta
+    attr_accessor :meta
 end
 
 def sequential?(obj)
@@ -11,6 +32,7 @@ def sequential?(obj)
 end
 
 class Function < Proc
+    attr_accessor :meta
     attr_accessor :ast
     attr_accessor :env
     attr_accessor :params
@@ -28,3 +50,11 @@ class Function < Proc
         return Env.new(@env, @params, args)
     end
 end
+
+class Atom
+    attr_accessor :meta
+    attr_accessor :val
+    def initialize(val)
+        @val = val
+    end
+end