From f1134cc5f18aef555e3c8573d0fa62b17f3908a0 Mon Sep 17 00:00:00 2001
From: bbbradsmith <bbbradsmith@users.noreply.github.com>
Date: Mon, 20 Feb 2023 20:42:09 -0500
Subject: [PATCH] ca65 improve error for unclosed scopes See: #1779

---
 src/ca65/symtab.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/ca65/symtab.c b/src/ca65/symtab.c
index afe7b3ad6..a01d14bd8 100644
--- a/src/ca65/symtab.c
+++ b/src/ca65/symtab.c
@@ -570,7 +570,18 @@ void SymCheck (void)
 
     /* Check for open scopes */
     if (CurrentScope->Parent != 0) {
-        Error ("Local scope was not closed");
+        if (CurrentScope->Label) {
+            /* proc has a label indicating the line it was opened. */
+            LIError (&CurrentScope->Label->DefLines,
+                     "Local proc '%s' was not closed",
+                     GetString (CurrentScope->Name));
+        } else {
+            /* scope has no label to track a line number, uses end-of-document line instead.
+            ** Anonymous scopes will reveal their internal automatic name.
+            */
+            Error ("Local scope '%s' was not closed",
+                   GetString (CurrentScope->Name));
+        }
     }
 
     /* First pass: Walk through all symbols, checking for undefined's and