walker pakage

walker/walker.go

@@ -0,0 +1,13 @@
+package walker
+
+// Walker interface
+type Walker interface {
+	Walk(v Visitor)
+}
+
+// Visitor interface
+type Visitor interface {
+	EnterNode(w Walker) bool               // EnterNode invoked for each node encountered by Walk.
+	GetChildrenVisitor(Key string) Visitor // GetChildrenVisitor returns visitor for children nodes
+	LeaveNode(w Walker)                    // LeaveNode invoked after process node
+}