Return cloneNode as the receiver type

Author: Kelpy2004

baselines/dom.generated.d.ts

@@ -26421,7 +26421,7 @@ interface Node extends EventTarget {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/cloneNode)
      */
-    cloneNode(subtree?: boolean): Node;
+    cloneNode(subtree?: boolean): this;
     /**
      * The **`compareDocumentPosition()`** method of the Node interface reports the position of its argument node relative to the node on which it is called.
      *

baselines/ts5.5/dom.generated.d.ts

@@ -26397,7 +26397,7 @@ interface Node extends EventTarget {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/cloneNode)
      */
-    cloneNode(subtree?: boolean): Node;
+    cloneNode(subtree?: boolean): this;
     /**
      * The **`compareDocumentPosition()`** method of the Node interface reports the position of its argument node relative to the node on which it is called.
      *

baselines/ts5.6/dom.generated.d.ts

@@ -26418,7 +26418,7 @@ interface Node extends EventTarget {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/cloneNode)
      */
-    cloneNode(subtree?: boolean): Node;
+    cloneNode(subtree?: boolean): this;
     /**
      * The **`compareDocumentPosition()`** method of the Node interface reports the position of its argument node relative to the node on which it is called.
      *

baselines/ts5.9/dom.generated.d.ts

@@ -26418,7 +26418,7 @@ interface Node extends EventTarget {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Node/cloneNode)
      */
-    cloneNode(subtree?: boolean): Node;
+    cloneNode(subtree?: boolean): this;
     /**
      * The **`compareDocumentPosition()`** method of the Node interface reports the position of its argument node relative to the node on which it is called.
      *

inputfiles/overridingTypes.jsonc

@@ -559,6 +559,13 @@
             "Node": {
                 "methods": {
                     "method": {
+                        "cloneNode": {
+                            "signature": {
+                                "0": {
+                                    "overrideType": "this"
+                                }
+                            }
+                        },
                         "appendChild": {
                             "signature": {
                                 "0": {

unittests/files/cloneNode.ts

@@ -0,0 +1,30 @@
+declare const assertType: <T>() => <T1>(
+  _x: T1,
+) => StrictEqual<T, T1> extends true
+  ? () => void
+  : T1 extends T
+    ? { error: "Left side is not assignable to right side" }
+    : { error: "Right side is not assignable to left side" };
+
+type StrictEqual<X, Y> =
+  (<T>() => T extends X ? 1 : 2) extends <T>() => T extends Y ? 1 : 2
+    ? true
+    : false;
+
+declare const node: Node;
+assertType<Node>()(node.cloneNode())();
+
+const div = document.createElement("div");
+assertType<HTMLDivElement>()(div.cloneNode(true))();
+
+declare const documentFragment: DocumentFragment;
+assertType<DocumentFragment>()(documentFragment.cloneNode())();
+
+declare const elementOrFragment: Element | DocumentFragment;
+assertType<Element | DocumentFragment>()(elementOrFragment.cloneNode())();
+
+class FancyButton extends HTMLButtonElement {}
+declare const fancyButton: FancyButton;
+assertType<FancyButton>()(fancyButton.cloneNode())();
+
+export {};