Implements binding and evaluating function declarations

src/Utilities/HashedString.hpp

@@ -5,15 +5,17 @@
 #include <string>
 
 class HashedString{
-    int _hash;
-    static unsigned constexpr const_hash(char const *input) {
-        return *input ?
-               static_cast<unsigned int>(*input) + 33 * const_hash(input + 1) :
-               5381;
-    }
+    const int _hash;
 public:
-    explicit HashedString(std::string s){
-        _hash = const_hash(s.c_str());
+    explicit HashedString(const std::string& s) : _hash(ConstHash(s.c_str())){
+    }
+    explicit HashedString(char const *input) : _hash(ConstHash(input)){
+    }
+
+    static unsigned constexpr ConstHash(char const *input) {
+        return *input ?
+               static_cast<unsigned int>(*input) + 33 * ConstHash(input + 1) :
+               5381;
     }
 
     const int GetHash(){