1 files changed, 10 insertions, 1 deletions

diff --git a/LuaSL/src/LuaSL_LSL_tree.c b/LuaSL/src/LuaSL_LSL_tree.c
index fb35490..6a0988c 100644
--- a/LuaSL/src/LuaSL_LSL_tree.c
+++ b/LuaSL/src/LuaSL_LSL_tree.c
@@ -276,7 +276,16 @@ LSL_Leaf *addOperation(LSL_Leaf *left, LSL_Leaf *lval, LSL_Leaf *right)
             }
         }
         if (OT_invalid == lval->basicType)
-            fprintf(stderr, "Invalid operation [%s] type at line %d column %d\n", lval->token->token, lval->line, lval->column);
+        {
+            if ((left) && (right))
+                fprintf(stderr, "Invalid operation [%s %s %s] type at line %d column %d\n", left->token->token, lval->token->token, right->token->token, lval->line, lval->column);
+            else if (left)
+                fprintf(stderr, "Invalid operation [%s %s] type at line %d column %d\n", left->token->token, lval->token->token, lval->line, lval->column);
+            else if (left)
+                fprintf(stderr, "Invalid operation [%s %s] type at line %d column %d\n", lval->token->token, right->token->token, lval->line, lval->column);
+            else
+                fprintf(stderr, "Invalid operation [%s] type at line %d column %d\n", lval->token->token, lval->line, lval->column);
+        }
     }
 
     return lval;