fix: add parent ref should be a weak ref

.github/workflows/main.yml

@@ -32,7 +32,7 @@ jobs:
 
       - uses: maxim-lobanov/setup-xcode@v1
         with:
-          xcode-version: "16.0"
+          xcode-version: "16.2"
 
       - name: Build and Test
         env:
@@ -109,18 +109,14 @@ jobs:
 
   windows-test:
     name: Windows Test
-    runs-on: windows-latest
+    runs-on: windows-2022
     timeout-minutes: 10
     strategy:
       fail-fast: false
       matrix:
         include:
-          - branch: swift-5.10-release
-            tag: 5.10-RELEASE
-            skip-testing: true
-
-          - branch: swift-6.0-release
-            tag: 6.0-RELEASE
+          - branch: swift-6.1-release
+            tag: 6.1-RELEASE
             perform-testing: true
 
     steps:

CHANGELOG.md

@@ -1,3 +1,7 @@
+## v8.1.1 (July 1, 2025)
+
+- Fix memory leak related to parent property (via #286 which closes #285).
+
 ## v8.1.0 (September 27, 2024)
 
 - Added the `parent` property to `XMLElement` (via [#278](https://github.com/drmohundro/SWXMLHash/pull/278) which closes [#277](https://github.com/drmohundro/SWXMLHash/issues/277))
@@ -196,7 +200,7 @@
 - Linux support is partially available and there is a Travis CI build for it as
   well.
   - Currently failing functionality is because of
-    https://bugs.swift.org/browse/SR-2301.
+    <https://bugs.swift.org/browse/SR-2301>.
 - (3.0.1 because I was having trouble publishing the CocoaPod...)
 
 ## v2.5.1 (August 23, 2016)

Package.swift

@@ -35,9 +35,6 @@ let package = Package(
             targets: ["SWXMLHash"]
         )
     ],
-    dependencies: [
-        .package(url: "https://github.com/apple/swift-testing.git", from: "0.10.0")
-    ],
     targets: [
         .target(
             name: "SWXMLHash",
@@ -47,8 +44,7 @@ let package = Package(
         .testTarget(
             name: "SWXMLHashTests",
             dependencies: [
-                "SWXMLHash",
-                .product(name: "Testing", package: "swift-testing")
+                "SWXMLHash"
             ],
             exclude: ["Info.plist", "test.xml"]
         )

Source/XMLElement.swift

@@ -30,7 +30,7 @@ public class XMLElement: XMLContent {
     /// The name of the element
     public let name: String
 
-    public private(set) var parent: XMLElement?
+    public private(set) weak var parent: XMLElement?
 
     /// Whether the element is case insensitive or not
     public var caseInsensitive: Bool {

Tests/SWXMLHashTests/TypeConversionArrayOfNonPrimitiveTypesTests.swift

@@ -214,7 +214,6 @@ struct TypeConversionArrayOfNonPrimitiveTypesTests {
 
             let values: [AttributeItem] = try subParser.value()
 
-            #expect(values != nil)
             #expect(values[0].name == "attr 2")
             #expect(values[0].price == 2.2)
             #expect(values[1].name == "attr 3")
@@ -230,7 +229,6 @@ struct TypeConversionArrayOfNonPrimitiveTypesTests {
 
             let value: BasicItem = try subParser.value()
 
-            #expect(value != nil)
             #expect(value.id == "1234a")
         } catch {
             Issue.record("\(error)")
@@ -243,7 +241,6 @@ struct TypeConversionArrayOfNonPrimitiveTypesTests {
 
             let values: [BasicItem] = try subParser.value()
 
-            #expect(values != nil)
             #expect(values[0].id == "1234b")
             #expect(values[1].id == "1234c")
         } catch {