support for type alias

1 files changed, 10 insertions, 3 deletions

diff --git a/VariableList.hh b/VariableList.hh
index cf622ee..ec41b0c 100644
--- a/VariableList.hh
+++ b/VariableList.hh
@@ -8,19 +8,26 @@
 #include "Type.hh"
 
 namespace pcc {
+class TypeIdentifier;
+
 // type and value
 using Variable = std::pair<std::shared_ptr<Type>, Value>;
 // name and type
-using Declaration = std::pair<std::string, std::shared_ptr<Type>>;
+using Declaration = std::pair<std::string, std::shared_ptr<TypeIdentifier>>;
 
 class VariableList {
   public:
     VariableList(VariableList* parent = nullptr);
-    Variable Find(const std::string& name);
-    void Add(std::string name, Variable variable);
+    Variable FindVariable(const std::string& name);
+    void AddVariable(const std::string& name, Variable variable);
+
+    // stores type alias, just because we wan't create another TypeAliasList
+    std::shared_ptr<Type> FindTypeAlias(const std::string& name);
+    void AddTypeAlias(const std::string& name, std::shared_ptr<Type> type);
 
   protected:
     std::unordered_map<std::string, Variable> variables_;
+    std::unordered_map<std::string, std::shared_ptr<Type>> TypeAlias_;
     VariableList* parent_;
 };
 } // namespace pcc