add .stylesheet(node)

Author: tj

lib/identity.js

@@ -19,9 +19,7 @@ function Compiler(options) {
  */
 
 Compiler.prototype.compile = function(node){
-  return node.stylesheet
-    .rules.map(this.visit, this)
-    .join('\n\n');
+  return this.stylesheet(node);
 };
 
 /**
@@ -32,6 +30,16 @@ Compiler.prototype.visit = function(node){
   return this[node.type](node);
 };
 
+/**
+ * Visit stylesheet node.
+ */
+
+Compiler.prototype.stylesheet = function(node){
+  return node.stylesheet
+    .rules.map(this.visit, this)
+    .join('\n\n');
+};
+
 /**
  * Visit comment node.
  */