Handle bound classes as constants during evaluation

src/Binder/BoundStatements/BoundFunctionDeclarationStatement.hpp

@@ -1,3 +1,5 @@
+#include <utility>
+
 
 #ifndef PORYGONLANG_BOUNDFUNCTIONDECLARATIONSTATEMENT_HPP
 #define PORYGONLANG_BOUNDFUNCTIONDECLARATIONSTATEMENT_HPP
@@ -6,33 +8,32 @@
 #include "BoundStatement.hpp"
 
 class BoundFunctionDeclarationStatement : public BoundStatement{
-    BoundVariableKey* _key;
-    std::shared_ptr<BoundBlockStatement> _block;
-    std::shared_ptr<FunctionScriptType> _type;
+    const BoundVariableKey* _key;
+    const std::shared_ptr<BoundBlockStatement> _block;
+    const std::shared_ptr<FunctionScriptType> _type;
 public:
-    BoundFunctionDeclarationStatement(std::shared_ptr<FunctionScriptType> type, BoundVariableKey* key, BoundBlockStatement* block){
-        _key = key;
-        _block = shared_ptr<BoundBlockStatement>(block);
-        _type = type;
+    BoundFunctionDeclarationStatement(std::shared_ptr<FunctionScriptType> type, BoundVariableKey* key, BoundBlockStatement* block)
+        :_key(key), _block(block), _type(std::move(type))
+    {
     }
 
     ~BoundFunctionDeclarationStatement() final{
         delete _key;
     }
 
-    BoundStatementKind GetKind() final{
+    const BoundStatementKind GetKind() const final{
         return BoundStatementKind ::FunctionDeclaration;
     }
 
-    BoundVariableKey* GetKey(){
+    const BoundVariableKey* GetKey() const{
         return _key;
     }
 
-    std::shared_ptr<BoundBlockStatement> GetBlock(){
+    const std::shared_ptr<BoundBlockStatement> GetBlock() const{
         return _block;
     }
 
-    std::shared_ptr<FunctionScriptType> GetType(){
+    const std::shared_ptr<FunctionScriptType> GetType() const{
         return _type;
     }
 };