Froze rails gems
[depot.git] / vendor / rails / activesupport / lib / active_support / core_ext / module / attribute_accessors.rb
diff --git a/vendor/rails/activesupport/lib/active_support/core_ext/module/attribute_accessors.rb b/vendor/rails/activesupport/lib/active_support/core_ext/module/attribute_accessors.rb
new file mode 100644 (file)
index 0000000..51e1c9a
--- /dev/null
@@ -0,0 +1,58 @@
+# Extends the module object with module and instance accessors for class attributes, 
+# just like the native attr* accessors for instance attributes.
+#
+#  module AppConfiguration
+#    mattr_accessor :google_api_key
+#    self.google_api_key = "123456789"
+#
+#    mattr_accessor :paypal_url
+#    self.paypal_url = "www.sandbox.paypal.com"
+#  end
+#
+#  AppConfiguration.google_api_key = "overriding the api key!"
+class Module
+  def mattr_reader(*syms)
+    syms.each do |sym|
+      next if sym.is_a?(Hash)
+      class_eval(<<-EOS, __FILE__, __LINE__)
+        unless defined? @@#{sym}
+          @@#{sym} = nil
+        end
+        
+        def self.#{sym}
+          @@#{sym}
+        end
+
+        def #{sym}
+          @@#{sym}
+        end
+      EOS
+    end
+  end
+  
+  def mattr_writer(*syms)
+    options = syms.extract_options!
+    syms.each do |sym|
+      class_eval(<<-EOS, __FILE__, __LINE__)
+        unless defined? @@#{sym}
+          @@#{sym} = nil
+        end
+        
+        def self.#{sym}=(obj)
+          @@#{sym} = obj
+        end
+        
+        #{"
+        def #{sym}=(obj)
+          @@#{sym} = obj
+        end
+        " unless options[:instance_writer] == false }
+      EOS
+    end
+  end
+  
+  def mattr_accessor(*syms)
+    mattr_reader(*syms)
+    mattr_writer(*syms)
+  end
+end