From 8a93a16738dde1e6cfd32f4aa3dbecb6629f4f22 Mon Sep 17 00:00:00 2001
From: JohnnyMorganz <johnnymorganz@outlook.com>
Date: Mon, 28 Nov 2022 11:16:35 +0000
Subject: [PATCH] Add FFlag

---
 Analysis/src/TypeInfer.cpp       | 3 ++-
 tests/TypeInfer.classes.test.cpp | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Analysis/src/TypeInfer.cpp b/Analysis/src/TypeInfer.cpp
index 4c7d7891..6a0b013f 100644
--- a/Analysis/src/TypeInfer.cpp
+++ b/Analysis/src/TypeInfer.cpp
@@ -49,6 +49,7 @@ LUAU_FASTFLAGVARIABLE(LuauReportShadowedTypeAlias, false)
 LUAU_FASTFLAGVARIABLE(LuauBetterMessagingOnCountMismatch, false)
 LUAU_FASTFLAGVARIABLE(LuauArgMismatchReportFunctionLocation, false)
 LUAU_FASTFLAGVARIABLE(LuauImplicitElseRefinement, false)
+LUAU_FASTFLAGVARIABLE(LuauCallableClasses, false)
 
 namespace Luau
 {
@@ -4140,7 +4141,7 @@ std::optional<WithPredicate<TypePackId>> TypeChecker::checkCallOverload(const Sc
     if (const MetatableTypeVar* mttv = get<MetatableTypeVar>(fn))
     {
         callTy = getIndexTypeFromType(scope, mttv->metatable, "__call", expr.func->location, /* addErrors= */ false);
-    } else if (const ClassTypeVar* ctv = get<ClassTypeVar>(fn); ctv && ctv->metatable)
+    } else if (const ClassTypeVar* ctv = get<ClassTypeVar>(fn); FFlag::LuauCallableClasses && ctv && ctv->metatable)
     {
         callTy = getIndexTypeFromType(scope, *ctv->metatable, "__call", expr.func->location, /* addErrors= */ false);
     }
diff --git a/tests/TypeInfer.classes.test.cpp b/tests/TypeInfer.classes.test.cpp
index cf60eea2..d1a24e5f 100644
--- a/tests/TypeInfer.classes.test.cpp
+++ b/tests/TypeInfer.classes.test.cpp
@@ -523,6 +523,8 @@ TEST_CASE_FIXTURE(ClassFixture, "unions_of_intersections_of_classes")
 
 TEST_CASE_FIXTURE(ClassFixture, "callable_classes")
 {
+    ScopedFastFlag luauCallableClasses{"LuauCallableClasses", true};
+
     CheckResult result = check(R"(
         local x : CallableClass
         local y = x("testing")