Add global static var for global objects, e.g. Window.global

Author: j-f1

Sources/DOM/Generated.swift

@@ -16817,6 +16817,10 @@ public class WheelEventInit: BridgedDictionary {
 public class Window: EventTarget, GlobalEventHandlers, WindowEventHandlers, WindowOrWorkerGlobalScope, AnimationFrameProvider, WindowSessionStorage, WindowLocalStorage {
     @inlinable override public class var constructor: JSFunction? { JSObject.global[Strings.Window].function }
 
+    @inlinable public static var global: Window {
+        Window(unsafelyWrapping: JSObject.global)
+    }
+
     public required init(unsafelyWrapping jsObject: JSObject) {
         _event = ReadonlyAttribute(jsObject: jsObject, name: Strings.event)
         _window = ReadonlyAttribute(jsObject: jsObject, name: Strings.window)

Sources/WebIDLToSwift/MergeDeclarations.swift

@@ -128,7 +128,8 @@ enum DeclarationMerger {
                             .filter { $0.name == "Exposed" }
                             .flatMap { $0.rhs?.identifiers ?? [] }
                     ),
-                    exposedToAll: $0.extAttrs.contains { $0.name == "Exposed" && $0.rhs == .wildcard }
+                    exposedToAll: $0.extAttrs.contains { $0.name == "Exposed" && $0.rhs == .wildcard },
+                    global: $0.extAttrs.contains { $0.name == "Global" }
                 )
             },
             by: \.name
@@ -138,6 +139,7 @@ enum DeclarationMerger {
                 partialResult.members += interface.members
                 partialResult.exposed.formUnion(interface.exposed)
                 partialResult.exposedToAll = partialResult.exposedToAll || interface.exposedToAll
+                partialResult.global = partialResult.global || interface.global
             }
             interface.mixins = includes[interface.name, default: []]
             if let decl = interface.members.first(where: { $0 is IDLIterableDeclaration }) as? IDLIterableDeclaration {
@@ -287,6 +289,7 @@ struct MergedInterface: DeclarationFile {
     var members: [IDLInterfaceMember]
     var exposed: Set<String>
     var exposedToAll: Bool
+    var global: Bool
 }
 
 struct Typedefs: DeclarationFile, SwiftRepresentable {

Sources/WebIDLToSwift/WebIDL+SwiftRepresentation.swift

@@ -237,12 +237,25 @@ extension MergedInterface: SwiftRepresentable {
         ]
         let access: SwiftSource = openClasses.contains(name) ? "open" : "public"
 
+        let globalAccessor: SwiftSource
+        if global {
+            globalAccessor = """
+            @inlinable public static var global: \(name) {
+                \(name)(unsafelyWrapping: JSObject.global)
+            }
+            """
+        } else {
+            globalAccessor = ""
+        }
+
         return """
         \(access) class \(name): \(sequence: inheritance.map(SwiftSource.init(_:))) {
             @inlinable \(access)\(parentClasses.isEmpty ? "" : " override") class var constructor: JSFunction? { \(constructor) }
 
             \(parentClasses.isEmpty ? "public let jsObject: JSObject" : "")
 
+            \(globalAccessor)
+
             public required init(unsafelyWrapping jsObject: JSObject) {
                 \(memberInits.joined(separator: "\n"))
                 \(parentClasses.isEmpty ? "self.jsObject = jsObject" : "super.init(unsafelyWrapping: jsObject)")