From fc1410099d6ccbb72adb54ecffd0711348706ca4 Mon Sep 17 00:00:00 2001
From: "Arnold D. Robbins" <arnold@skeeve.com>
Date: Sun, 27 Feb 2022 20:39:54 +0200
Subject: Have cant_happen() give more information.

---
 debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'debug.c')

diff --git a/debug.c b/debug.c
index e7dd7060..2849a4c1 100644
--- a/debug.c
+++ b/debug.c
@@ -1732,7 +1732,7 @@ watchpoint_triggered(struct list_item *w)
 		case Node_var_new:
 			break;
 		default:
-			cant_happen();
+			cant_happen("unexpected symbol type %s", nodetype2str(symbol->type));
 		}
 	}
 
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