From 7f9626e5c7508c98f8be7f6f76387704bfedd93b Mon Sep 17 00:00:00 2001
From: gingerBill <bill@gingerbill.org>
Date: Fri, 27 Dec 2019 17:53:05 +0000
Subject: [PATCH] Improve 'cannot slice' error message

---
 src/check_expr.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/check_expr.cpp b/src/check_expr.cpp
index 8bb771af1..8ba504ed3 100644
--- a/src/check_expr.cpp
+++ b/src/check_expr.cpp
@@ -8748,7 +8748,9 @@ ExprKind check_expr_base_internal(CheckerContext *c, Operand *o, Ast *node, Type
 
 		if (!valid) {
 			gbString str = expr_to_string(o->expr);
-			error(o->expr, "Cannot slice '%s'", str);
+			gbString type_str = type_to_string(o->type);
+			error(o->expr, "Cannot slice '%s' of type '%s'", str, type_str);
+			gb_string_free(type_str);
 			gb_string_free(str);
 			o->mode = Addressing_Invalid;
 			o->expr = node;