Implements indexing, currently can only be used with strings

src/Parser/ParsedExpressions/ParsedExpression.hpp

@@ -22,6 +22,7 @@ enum class ParsedExpressionKind{
     Binary,
     Parenthesized,
     FunctionCall,
+    Indexer,
 };
 
 class ParsedExpression {
@@ -246,5 +247,28 @@ public:
     }
 };
 
+class IndexExpression : public ParsedExpression{
+    std::unique_ptr<ParsedExpression> _indexerExpression;
+    std::unique_ptr<ParsedExpression> _indexExpression;
+public:
+    IndexExpression(ParsedExpression* indexer, ParsedExpression* index, unsigned int start, unsigned int length)
+    :ParsedExpression(start, length){
+        _indexerExpression = std::unique_ptr<ParsedExpression>(indexer);
+        _indexExpression = std::unique_ptr<ParsedExpression>(index);
+    }
+
+    ParsedExpressionKind GetKind() final{
+        return ParsedExpressionKind::Indexer;
+    }
+
+    ParsedExpression* GetIndexer(){
+        return _indexerExpression.get();
+    }
+
+    ParsedExpression* GetIndex(){
+        return _indexExpression.get();
+    }
+};
+
 
 #endif //PORYGONLANG_PARSEDEXPRESSION_HPP