From 5d52bef19d1f8cb1ae6bad30b5aeb2508356426c Mon Sep 17 00:00:00 2001
From: Elizabeth Figura <zfigura@codeweavers.com>
Date: Thu, 29 Aug 2024 12:48:23 -0500
Subject: [PATCH] vkd3d-shader/hlsl: Return an "error" expression when using an
 undeclared variable.

---
 libs/vkd3d-shader/hlsl.y | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libs/vkd3d-shader/hlsl.y b/libs/vkd3d-shader/hlsl.y
index b4d9f098..8fce78d6 100644
--- a/libs/vkd3d-shader/hlsl.y
+++ b/libs/vkd3d-shader/hlsl.y
@@ -8682,7 +8682,11 @@ primary_expr:
             else
             {
                 hlsl_error(ctx, &@1, VKD3D_SHADER_ERROR_HLSL_NOT_DEFINED, "Identifier \"%s\" is not declared.", $1);
-                YYABORT;
+                vkd3d_free($1);
+
+                if (!($$ = make_empty_block(ctx)))
+                    YYABORT;
+                $$->value = ctx->error_instr;
             }
         }