I'm starting visitors pattern.

Sencha-lang/AST/ASTNode.h

@@ -10,6 +10,7 @@
 #include <vector>
 #include <string>
 #include "SenchaObject.h"
+#include "../Visitor.h"
 
 class ASTNode {
 public:
@@ -17,6 +18,7 @@ public:
 	ASTNode * parent;
 	std::vector<ASTNode *> children;
 
+	virtual void accept(Visitor *) = 0;
 
 	virtual std::string debug() = 0;
 	virtual void execute() = 0;

Sencha-lang/ASTInspector.cpp

@@ -0,0 +1,18 @@
+/*
+ * ASTInspector.cpp
+ *
+ *  Created on: Dec 17, 2012
+ *      Author: att
+ */
+
+#include "ASTInspector.h"
+
+ASTInspector::ASTInspector() {
+	// TODO Auto-generated constructor stub
+
+}
+
+ASTInspector::~ASTInspector() {
+	// TODO Auto-generated destructor stub
+}
+

Sencha-lang/ASTInspector.h

@@ -0,0 +1,19 @@
+/*
+ * ASTInspector.h
+ *
+ *  Created on: Dec 17, 2012
+ *      Author: att
+ */
+
+#ifndef ASTINSPECTOR_H_
+#define ASTINSPECTOR_H_
+
+#include "Visitor.h"
+
+class ASTInspector: public Visitor {
+public:
+	ASTInspector();
+	virtual ~ASTInspector();
+};
+
+#endif /* ASTINSPECTOR_H_ */

Sencha-lang/Visitor.cpp

@@ -0,0 +1,18 @@
+/*
+ * Visitor.cpp
+ *
+ *  Created on: Dec 17, 2012
+ *      Author: att
+ */
+
+#include "Visitor.h"
+
+Visitor::Visitor() {
+	// TODO Auto-generated constructor stub
+
+}
+
+Visitor::~Visitor() {
+	// TODO Auto-generated destructor stub
+}
+

Sencha-lang/Visitor.h

@@ -0,0 +1,19 @@
+/*
+ * Visitor.h
+ *
+ *  Created on: Dec 17, 2012
+ *      Author: att
+ */
+
+#ifndef VISITOR_H_
+#define VISITOR_H_
+#include "AST/ASTNode.h"
+
+class Visitor {
+public:
+	Visitor();
+	virtual void visit(ASTNode * node/*something*/) = 0;
+	virtual ~Visitor();
+};
+
+#endif /* VISITOR_H_ */