1 files changed, 26 insertions, 0 deletions
diff --git a/mrblib/class.rb b/mrblib/class.rb
new file mode 100644
index 000000000..4f268b6c8
--- /dev/null
+++ b/mrblib/class.rb
@@ -0,0 +1,26 @@
+class Module
+  # 15.2.2.4.13
+  def attr_reader(*names)
+    names.each{|name|
+      name2 = ('@'+name.to_s).intern
+      define_method(name){self.instance_variable_get(name2)}
+    }
+  end
+  # 15.2.2.4.14
+  def attr_writer(*names)
+    names.each{|name|
+      name2 = ('@'+name.to_s).intern
+      name = (name.to_s+"=").intern
+      define_method(name){|v|self.instance_variable_set(name2,v)}
+    }
+  end
+  # 15.2.2.4.12
+  def attr_accessor(*names)
+    attr_reader(*names)
+    attr_writer(*names)
+  end
+  # 15.2.2.4.11
+  def attr(name)
+    attr_reader(name)
+  end
+end