diff --git a/compiler/cpp/src/parse/t_const_value.h b/compiler/cpp/src/parse/t_const_value.h
new file mode 100644
index 0000000..3d99c85
--- /dev/null
+++ b/compiler/cpp/src/parse/t_const_value.h
@@ -0,0 +1,94 @@
+#ifndef T_CONST_VALUE_H
+#define T_CONST_VALUE_H
+
+#include "t_const.h"
+#include <map>
+#include <vector>
+
+/**
+ * A const value is something parsed that could be a map, set, list, struct
+ * or whatever.
+ *
+ * @author Mark Slee <mcslee@facebook.com>
+ */
+class t_const_value {
+ public:
+
+  enum t_const_value_type {
+    CV_INTEGER,
+    CV_DOUBLE,
+    CV_STRING,
+    CV_MAP,
+    CV_LIST
+  };
+
+  t_const_value() {}
+
+  void set_string(std::string val) {
+    valType_ = CV_STRING;
+    stringVal_ = val;
+  }
+
+  std::string get_string() const {
+    return stringVal_;
+  }
+
+  void set_integer(int val) {
+    valType_ = CV_INTEGER;
+    intVal_ = val;
+  }
+
+  int get_integer() const {
+    return intVal_;
+  }
+
+  void set_double(double val) {
+    valType_ = CV_DOUBLE;
+    doubleVal_ = val;
+  }
+
+  double get_double() const {
+    return doubleVal_;
+  }
+
+  void set_map() {
+    valType_ = CV_MAP;
+  }
+
+  void add_map(t_const_value* key, t_const_value* val) {
+    mapVal_[key] = val;
+  }
+
+  const std::map<t_const_value*, t_const_value*>& get_map() const {
+    return mapVal_;
+  } 
+
+  void set_list() {
+    valType_ = CV_LIST;
+  }
+
+  void add_list(t_const_value* val) {
+    listVal_.push_back(val);
+  }
+
+  const std::vector<t_const_value*>& get_list() const {
+    return listVal_;
+  }
+
+  t_const_value_type get_type() const {
+    return valType_;
+  }
+
+ private:
+  std::map<t_const_value*, t_const_value*> mapVal_;
+  std::vector<t_const_value*> listVal_;
+  std::string stringVal_;
+  int intVal_;
+  double doubleVal_;
+
+  t_const_value_type valType_;
+
+};
+
+#endif
+