manage null ast nodes and fix failing test

tkobayas · Oct 11, 2024 · 7e71947 · 7e71947
1 parent bf34cbf
commit 7e71947
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/drools-drl/drools-drl10-parser/src/main/java/org/drools/parser/DRLParserHelper.java b/drools-drl/drools-drl10-parser/src/main/java/org/drools/parser/DRLParserHelper.java
@@ -115,10 +115,9 @@ public static boolean isAfterSymbol(ParseTree node, int symbol, int row, int col
     }
 
     public static int getNodeIndex(ParseTree node) {
-        // TODO Fix NPE
         if (node instanceof TerminalNode) {
             return ((TerminalNode) node).getSymbol().getTokenIndex();
         }
-        return getNodeIndex(node.getChild(node.getChildCount()-1));
+        return node.getChildCount() == 0 ? 0: getNodeIndex(node.getChild(node.getChildCount()-1));
     }
 }