exercise 1 completed

1.b now works
1.c implened error for "function takes N positional arguments but M were given"

1 files changed, 5 insertions, 0 deletions

diff --git a/src/ast/nodes/TrailerNode.java b/src/ast/nodes/TrailerNode.java
index b0a0ee7..850b8e8 100644
--- a/src/ast/nodes/TrailerNode.java
+++ b/src/ast/nodes/TrailerNode.java
@@ -11,6 +11,7 @@ import org.antlr.v4.runtime.tree.TerminalNode;
  * Node for the `trailer` statement of the grammar.
  */
 public class TrailerNode implements Node {
+
     private Node arglist;
     private ArrayList<Node> exprs;
     private TerminalNode methodCall;
@@ -39,6 +40,10 @@ public class TrailerNode implements Node {
         return errors;
     }
 
+    public int getArgumentNumber() {
+        return ((ArglistNode) arglist).getArgumentNumber();
+    }
+
     @Override
     public Type typeCheck() {
         return new VoidType();