Implements basic numerical tables

src/Evaluator/EvalValues/StringEvalValue.hpp

@@ -9,11 +9,13 @@ using namespace std;
 
 class StringEvalValue : public EvalValue{
     string _value;
+    size_t _hash;
     std::shared_ptr<ScriptType> _type;
 public:
     explicit StringEvalValue(string s){
         _value = move(s);
         _type = std::make_shared<ScriptType>(TypeClass::String);
+        _hash = std::hash<string>{}(_value);
     }
 
     std::shared_ptr<ScriptType> GetType() final{
@@ -22,7 +24,7 @@ public:
     bool operator ==(EvalValue* b) final{
         if (b->GetType()->GetClass() != TypeClass::String)
             return false;
-        return this->_value == *b->EvaluateString();
+        return this->_hash == b->GetHashCode();
     };
 
     string* EvaluateString() final{
@@ -33,10 +35,14 @@ public:
         return make_shared<StringEvalValue>(_value);
     }
 
-    EvalValue* IndexValue(EvalValue* val) final{
+    shared_ptr<EvalValue> IndexValue(EvalValue* val) final{
         // Porygon is 1-indexed, so we convert to that.
         auto l = val->EvaluateInteger() - 1;
-        return new StringEvalValue(string(1, _value[l]));
+        return make_shared<StringEvalValue>(string(1, _value[l]));
+    }
+
+    std::size_t GetHashCode() final{
+        return _hash;
     }
 };