From 9f246a43667b4893040669873400e2e3813328ff Mon Sep 17 00:00:00 2001
From: Sai Praveen Bangaru <31557731+saipraveenb25@users.noreply.github.com>
Date: Thu, 3 Oct 2024 16:02:16 -0400
Subject: Support custom derivatives of member functions of differentiable
 types (#5124)

* Initial work to support custom derivatives for member methods of differentiable types

* Support custom derivatives of member functions of differentiable types

 - Also adds support for declaring custom derivatives via extensions.

* Fix

* move defs

* Update slang-check-decl.cpp

* Create diff-member-func-custom-derivative.slang.expected.txt

* Update slang-check-decl.cpp

* Fix for static custom derivatives

* Fix diagnostics for [PreferRecompute]

* Add backward custom derivative tests
---
 source/slang/slang-check-expr.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(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 e9c257750..842ffb527 100644
--- a/source/slang/slang-check-expr.cpp
+++ b/source/slang/slang-check-expr.cpp
@@ -4754,7 +4754,9 @@ namespace Slang
             scope = scope->parent;
         }
 
-        getSink()->diagnose(expr, Diagnostics::thisExpressionOutsideOfTypeDecl);
+        if (auto sink = getSink())
+            sink->diagnose(expr, Diagnostics::thisExpressionOutsideOfTypeDecl);
+            
         return CreateErrorExpr(expr);
     }
 
-- 
cgit v1.2.3