Classes property fix

Author: Vardan2009

eiger/Execution/BuiltInTypes/Dataclass.cs

@@ -28,12 +28,12 @@ public override Value GetAttr(ASTNode attr)
         if (attr.value == "type")
             return new String(filename, line, pos, "dataclass");
 
-        return symbolTable.GetSymbol(attr);
+        return symbolTable.GetSymbol(attr, false);
     }
 
     public override void SetAttr(ASTNode attr, Value val)
     {
-        symbolTable.SetSymbol(attr, val);
+        symbolTable.SetSymbol(attr, val, false);
     }
 
     public override string ToString()

eiger/Execution/BuiltInTypes/Instance.cs

@@ -29,12 +29,12 @@ public override Value GetAttr(ASTNode attr)
         {
             return createdFrom;
         }
-        return symbolTable.GetSymbol(attr);
+        return symbolTable.GetSymbol(attr, false);
     }
 
     public override void SetAttr(ASTNode attr, Value val)
     {
-        symbolTable.SetSymbol(attr, val);
+        symbolTable.SetSymbol(attr, val, false);
     }
 
     public override string ToString()

eiger/Execution/SymbolTable.cs

@@ -34,7 +34,7 @@ public void CreateSymbol(string key, Value val, string filename, int line, int p
             /*else*/ values[key] = val;
         }
 
-        public void SetSymbol(ASTNode key, Value value) {
+        public void SetSymbol(ASTNode key, Value value, bool checkParents = true) {
             try
             {
                 if (key.type == NodeType.ElementAccess)
@@ -63,7 +63,7 @@ public void SetSymbol(ASTNode key, Value value) {
             }
             catch (KeyNotFoundException)
             {
-                if(parent != null) parent.SetSymbol(key, value);
+                if(parent != null && checkParents) parent.SetSymbol(key, value);
                 else throw new EigerError(key.filename, key.line, key.pos, $"Setting to undefined symbol", EigerError.ErrorType.RuntimeError);
             }
         }
@@ -82,7 +82,7 @@ public Value GetSymbol(string key, string filename, int line, int pos) {
             else throw new EigerError(filename, line, pos, $"{key} is undefined", EigerError.ErrorType.RuntimeError); 
         }
 
-        public Value GetSymbol(ASTNode key)
+        public Value GetSymbol(ASTNode key, bool checkParents = true)
         {
             string err_key = "";
             try
@@ -121,7 +121,7 @@ public Value GetSymbol(ASTNode key)
             }
             catch (KeyNotFoundException)
             {
-                if(parent != null) return parent.GetSymbol(key);
+                if(parent != null && checkParents) return parent.GetSymbol(key);
                 else
                 throw new EigerError(key.filename, key.line, key.pos, $"{err_key} is undefined", EigerError.ErrorType.RuntimeError);
             }