LibWeb: Convert trivial attributes to FrozenArray

Author: https://github.com/trflynn89
Commit: ad34fdad48
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/4473
Reviewed-by: https://github.com/gmta ✅

Libraries/LibWeb/CSS/CSSLayerStatementRule.idl

@@ -3,6 +3,5 @@
 // https://drafts.csswg.org/css-cascade-5/#the-csslayerstatementrule-interface
 [Exposed=Window]
 interface CSSLayerStatementRule : CSSRule {
-    // FIXME: Should be a FrozenArray<CSSOMString>
-    readonly attribute sequence<CSSOMString> nameList;
+    readonly attribute FrozenArray<CSSOMString> nameList;
 };

Libraries/LibWeb/Clipboard/ClipboardItem.idl

@@ -7,8 +7,7 @@ interface ClipboardItem {
               optional ClipboardItemOptions options = {});
 
     readonly attribute PresentationStyle presentationStyle;
-    // FIXME: Should be a FrozenArray<DOMString>
-    readonly attribute sequence<DOMString> types;
+    readonly attribute FrozenArray<DOMString> types;
 
     Promise<Blob> getType(DOMString type);
 

Libraries/LibWeb/HTML/DataTransfer.idl

@@ -14,7 +14,7 @@ interface DataTransfer {
     [FIXME] undefined setDragImage(Element image, long x, long y);
 
     // old interface
-    readonly attribute sequence<DOMString> types; // FIXME: This should be FrozenArray<DOMString>
+    readonly attribute FrozenArray<DOMString> types;
     DOMString getData(DOMString format);
     [FIXME] undefined setData(DOMString format, DOMString data);
     [FIXME] undefined clearData(optional DOMString format);

Libraries/LibWeb/HTML/NavigatorLanguage.idl

@@ -1,7 +1,6 @@
 // https://html.spec.whatwg.org/multipage/system-state.html#navigatorlanguage
 interface mixin NavigatorLanguage {
     readonly attribute DOMString language;
-    // FIXME: readonly attribute FrozenArray<DOMString> languages;
-    //        This is supposed to be a FrozenArray that always returns the same object
-    readonly attribute sequence<DOMString> languages;
+    // FIXME: This is supposed always return the same object
+    readonly attribute FrozenArray<DOMString> languages;
 };

Libraries/LibWeb/IntersectionObserver/IntersectionObserver.idl

@@ -13,8 +13,7 @@ interface IntersectionObserver {
     readonly attribute (Element or Document)? root;
     readonly attribute DOMString rootMargin;
     readonly attribute DOMString scrollMargin;
-    // FIXME: `sequence<double>` should be `FrozenArray<double>`
-    readonly attribute sequence<double> thresholds;
+    readonly attribute FrozenArray<double> thresholds;
     readonly attribute long delay;
     readonly attribute boolean trackVisibility;
     undefined observe(Element target);

Libraries/LibWeb/ResizeObserver/ResizeObserverEntry.idl

@@ -6,10 +6,7 @@
 interface ResizeObserverEntry {
     readonly attribute Element target;
     readonly attribute DOMRectReadOnly contentRect;
-    // FIXME: Return FrozenArray<ResizeObserverSize> instead of any.
-    [ImplementedAs=border_box_size_js_array] readonly attribute any borderBoxSize;
-    // FIXME: Return FrozenArray<ResizeObserverSize> instead of any.
-    [ImplementedAs=content_box_size_js_array] readonly attribute any contentBoxSize;
-    // FIXME: Return FrozenArray<ResizeObserverSize> instead of any.
-    [ImplementedAs=device_pixel_content_box_size_js_array] readonly attribute any devicePixelContentBoxSize;
+    readonly attribute FrozenArray<ResizeObserverSize> borderBoxSize;
+    readonly attribute FrozenArray<ResizeObserverSize> contentBoxSize;
+    readonly attribute FrozenArray<ResizeObserverSize> devicePixelContentBoxSize;
 };