From 8e86121b6ce0f2995050ebe112306ded6bc87ca2 Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Wed, 8 May 2024 20:52:36 -0700
Subject: Support `[__ref]` attribute to make `this` pass by reference. (#4139)

Fixes #4110.
---
 source/slang/slang-check-expr.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'source/slang/slang-check-expr.cpp')

diff --git a/source/slang/slang-check-expr.cpp b/source/slang/slang-check-expr.cpp
index ff74f9a62..065a74c77 100644
--- a/source/slang/slang-check-expr.cpp
+++ b/source/slang/slang-check-expr.cpp
@@ -4173,6 +4173,10 @@ namespace Slang
                 {
                     expr->type.isLeftValue = true;
                 }
+                else if (funcDeclBase->hasModifier<RefAttribute>())
+                {
+                    expr->type.isLeftValue = true;
+                }
             }
             else if( auto typeOrExtensionDecl = as<AggTypeDeclBase>(containerDecl) )
             {
-- 
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