Bug fix: partially specialized non-static generic invoke missing `this` argument. (#2536)

* Fix non-static generic func call issue.

* Add test case.

* Revert unnecessary change.

* Update test comment.

Co-authored-by: Yong He <yhe@nvidia.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/source/slang/slang-check-expr.cpp b/source/slang/slang-check-expr.cpp
index 2c6899269..1f0e1a2dc 100644
--- a/source/slang/slang-check-expr.cpp
+++ b/source/slang/slang-check-expr.cpp
@@ -1054,6 +1054,14 @@ namespace Slang
         {
             return overloadedExpr2->base;
         }
+        else if (auto genApp = as<GenericAppExpr>(expr))
+        {
+            return GetBaseExpr(genApp->functionExpr);
+        }
+        else if (auto partiallyApplied = as<PartiallyAppliedGenericExpr>(expr))
+        {
+            return GetBaseExpr(partiallyApplied->originalExpr);
+        }
         return nullptr;
     }