From b402857713e71531df90f29aa81fd06ba7a6e069 Mon Sep 17 00:00:00 2001
From: StefanZ3 <i22040@hb.dhbw-stuttgart.de>
Date: Tue, 25 Jun 2024 17:09:16 +0200
Subject: [PATCH] fix methodCall

---
 src/main/java/astGenerator/ASTGenerator.java | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/main/java/astGenerator/ASTGenerator.java b/src/main/java/astGenerator/ASTGenerator.java
index c4bb951..3d7d34e 100644
--- a/src/main/java/astGenerator/ASTGenerator.java
+++ b/src/main/java/astGenerator/ASTGenerator.java
@@ -206,8 +206,12 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
         for(DecafParser.ReceivingMethodContext receivingMethod: ctx.receivingMethod()) {
             receivingMethods.add((ReceivingMethod) visit(receivingMethod));
         }
-        Receiver receiver = (Receiver) visit(ctx.receiver());
-        return new MethodCallStatementExpression(methodName, receiver, receivingMethods, arguments);
+        if (ctx.receiver() != null) {
+            Receiver receiver = (Receiver) visit(ctx.receiver());
+            return new MethodCallStatementExpression(methodName, receiver, receivingMethods, arguments);
+        } else {
+            return new MethodCallStatementExpression(methodName, null, receivingMethods, arguments);
+        }
     }
 
     @Override