From ae157a79a7eaf919bc56d3917858a18ad148e58d Mon Sep 17 00:00:00 2001
From: Kyle <kyle201817146@gmail.com>
Date: Sun, 6 Sep 2026 22:38:31 +0800
Subject: [PATCH 1/2] Make WeakAttribute.base public

---
 Sources/OpenAttributeGraph/Attribute/Weak/WeakAttribute.swift | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sources/OpenAttributeGraph/Attribute/Weak/WeakAttribute.swift b/Sources/OpenAttributeGraph/Attribute/Weak/WeakAttribute.swift
index d4135419..6e960f17 100644
--- a/Sources/OpenAttributeGraph/Attribute/Weak/WeakAttribute.swift
+++ b/Sources/OpenAttributeGraph/Attribute/Weak/WeakAttribute.swift
@@ -38,7 +38,7 @@ public import OpenAttributeGraphCxx
 @propertyWrapper
 @dynamicMemberLookup
 public struct WeakAttribute<Value> {
-    var base: AnyWeakAttribute
+    public var base: AnyWeakAttribute
 
     public init(base: AnyWeakAttribute) {
         self.base = base

From e2ab8d03031e234f28831710330ce89f551a53f2 Mon Sep 17 00:00:00 2001
From: Kyle <kyle201817146@gmail.com>
Date: Mon, 7 Sep 2026 23:11:35 +0800
Subject: [PATCH 2/2] Test WeakAttribute.base compatibility

---
 Scripts/CI/ag_setup.sh                           |  2 +-
 .../Weak/WeakAttributeCompatibilityTests.swift   | 16 ++++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/Scripts/CI/ag_setup.sh b/Scripts/CI/ag_setup.sh
index 2962dc5f..ad85fca4 100755
--- a/Scripts/CI/ag_setup.sh
+++ b/Scripts/CI/ag_setup.sh
@@ -6,7 +6,7 @@ filepath() {
 }
 
 REPO_ROOT="$(dirname $(dirname $(dirname $(filepath $0))))"
-DARWINPRIVATEFRAMEWORKS_FALLBACK_REVISION="0cec3b3219dd2d99818e861e3dca7598e7554f98"
+DARWINPRIVATEFRAMEWORKS_FALLBACK_REVISION="157294d5c4d5bde4e13e24347f0f8c50e47c79dc"
 
 clone_checkout_ag() {
   cd $REPO_ROOT
diff --git a/Tests/OpenAttributeGraphCompatibilityTests/Attribute/Weak/WeakAttributeCompatibilityTests.swift b/Tests/OpenAttributeGraphCompatibilityTests/Attribute/Weak/WeakAttributeCompatibilityTests.swift
index a4976f7b..f471e23f 100644
--- a/Tests/OpenAttributeGraphCompatibilityTests/Attribute/Weak/WeakAttributeCompatibilityTests.swift
+++ b/Tests/OpenAttributeGraphCompatibilityTests/Attribute/Weak/WeakAttributeCompatibilityTests.swift
@@ -15,5 +15,21 @@ struct WeakAttributeCompatibilityTests {
         let attr = Attribute(value: 0)
         _ = WeakAttribute(attr)
     }
+
+    @Test
+    func base() {
+        let first = Attribute(value: 1)
+        let second = Attribute(value: 2)
+        var weak = WeakAttribute(first)
+        #expect(weak.base == AnyWeakAttribute(first.identifier))
+
+        weak.base = AnyWeakAttribute(second.identifier)
+        #expect(weak.attribute == second)
+        #expect(weak.wrappedValue == 2)
+
+        weak.base = AnyWeakAttribute(nil)
+        #expect(weak.attribute == nil)
+        #expect(weak.wrappedValue == nil)
+    }
 }
 #endif