Fix prototypes of interface objects (fixes #2665)

components/script/dom/bindings/codegen/CodegenRust.py

@@ -1722,11 +1722,11 @@ def DOMClassTypeId(desc):
 
 def DOMClass(descriptor):
         protoList = ['PrototypeList::ID::' + proto for proto in descriptor.prototypeChain]
-        # Pad out the list to the right length with ID::Count so we
+        # Pad out the list to the right length with ID::Last so we
-        # guarantee that all the lists are the same length.  id::Count
+        # guarantee that all the lists are the same length.  ID::Last
         # is never the ID of any prototype, so it's safe to use as
         # padding.
-        protoList.extend(['PrototypeList::ID::Count'] * (descriptor.config.maxProtoChainLength - len(protoList)))
+        protoList.extend(['PrototypeList::ID::Last'] * (descriptor.config.maxProtoChainLength - len(protoList)))
         prototypeChainString = ', '.join(protoList)
         heapSizeOf = 'heap_size_of_raw_self_and_children::<%s>' % descriptor.interface.identifier.name
         return """\
@@ -2355,9 +2355,11 @@ class CGCreateInterfaceObjectsMethod(CGAbstractMethod):
     properties should be a PropertyArrays instance.
     """
     def __init__(self, descriptor, properties):
-        args = [Argument('*mut JSContext', 'cx'), Argument('HandleObject', 'global'),
+        args = [Argument('*mut JSContext', 'cx')]
-                Argument('HandleObject', 'receiver'),
+        if not descriptor.interface.isCallback():
-                Argument('MutableHandleObject', 'rval')]
+            args += [Argument('HandleObject', 'global'),
+                     Argument('*mut ProtoOrIfaceArray', 'cache')]
+        args.append(Argument('HandleObject', 'receiver'))
         CGAbstractMethod.__init__(self, descriptor, 'CreateInterfaceObjects', 'void', args,
                                   unsafe=True)
         self.properties = properties
@@ -2395,14 +2397,19 @@ assert!(!prototype_proto.ptr.is_null());""" % getPrototypeProto)]
                 properties[arrayName] = "None"
 
         code.append(CGGeneric("""
+let mut prototype = RootedObject::new(cx, ptr::null_mut());
 create_interface_prototype_object(cx,
                                   prototype_proto.handle(),
                                   &PrototypeClass,
                                   %(methods)s,
                                   %(attrs)s,
                                   %(consts)s,
-                                  rval);
+                                  prototype.handle_mut());
-assert!(!rval.ptr.is_null());""" % properties))
+assert!(!prototype.ptr.is_null());
+(*cache)[PrototypeList::ID::%(id)s as usize] = prototype.ptr;
+if <*mut JSObject>::needs_post_barrier(prototype.ptr) {
+    <*mut JSObject>::post_barrier((*cache).as_mut_ptr().offset(PrototypeList::ID::%(id)s as isize));
+}""" % properties))
 
         if self.descriptor.interface.hasInterfaceObject():
             properties["name"] = str_to_const_array(name)
@@ -2412,10 +2419,18 @@ assert!(!rval.ptr.is_null());""" % properties))
             else:
                 properties["constructor"] = "throwing_constructor"
                 properties["length"] = 0
+            if self.descriptor.interface.parent:
+                parentName = toBindingNamespace(self.descriptor.getParentName())
                 code.append(CGGeneric("""
-let interface_proto = RootedObject::new(cx, JS_GetFunctionPrototype(cx, global));
+let mut interface_proto = RootedObject::new(cx, ptr::null_mut());
+%s::GetConstructorObject(cx, global, receiver, interface_proto.handle_mut());""" % parentName))
+            else:
+                code.append(CGGeneric("""
+let interface_proto = RootedObject::new(cx, JS_GetFunctionPrototype(cx, global));"""))
+            code.append(CGGeneric("""\
 assert!(!interface_proto.ptr.is_null());
 
+let mut interface = RootedObject::new(cx, ptr::null_mut());
 create_noncallback_interface_object(cx,
                                     receiver,
                                     interface_proto.handle(),
@@ -2423,9 +2438,17 @@ create_noncallback_interface_object(cx,
                                     %(static_methods)s,
                                     %(static_attrs)s,
                                     %(consts)s,
-                                    rval.handle(),
+                                    prototype.handle(),
                                     %(name)s,
-                                    %(length)s);""" % properties))
+                                    %(length)s,
+                                    interface.handle_mut());
+assert!(!interface.ptr.is_null());""" % properties))
+            if self.descriptor.hasDescendants():
+                code.append(CGGeneric("""\
+(*cache)[PrototypeList::Constructor::%(id)s as usize] = interface.ptr;
+if <*mut JSObject>::needs_post_barrier(prototype.ptr) {
+    <*mut JSObject>::post_barrier((*cache).as_mut_ptr().offset(PrototypeList::Constructor::%(id)s as isize));
+}""" % properties))
 
         constructors = self.descriptor.interface.namedConstructors
         if constructors:
@@ -2438,7 +2461,7 @@ create_noncallback_interface_object(cx,
                 specs.append(CGGeneric("(%s as NonNullJSNative, %s, %d)" % (hook, name, length)))
             values = CGIndenter(CGList(specs, "\n"), 4)
             code.append(CGWrapper(values, pre="%s = [\n" % decl, post="\n];"))
-            code.append(CGGeneric("create_named_constructors(cx, receiver, &named_constructors, rval.handle());"))
+            code.append(CGGeneric("create_named_constructors(cx, receiver, &named_constructors, prototype.handle());"))
 
         if self.descriptor.hasUnforgeableMembers:
             # We want to use the same JSClass and prototype as the object we'll
@@ -2457,7 +2480,7 @@ create_noncallback_interface_object(cx,
                 holderProto = "HandleObject::null()"
             else:
                 holderClass = "&Class.base as *const js::jsapi::Class as *const JSClass"
-                holderProto = "rval.handle()"
+                holderProto = "prototype.handle()"
             code.append(CGGeneric("""
 let mut unforgeable_holder = RootedObject::new(cx, ptr::null_mut());
 unforgeable_holder.handle_mut().set(
@@ -2466,7 +2489,7 @@ assert!(!unforgeable_holder.ptr.is_null());
 """ % {'holderClass': holderClass, 'holderProto': holderProto}))
             code.append(InitUnforgeablePropertiesOnHolder(self.descriptor, self.properties))
             code.append(CGGeneric("""\
-JS_SetReservedSlot(rval.get(), DOM_PROTO_UNFORGEABLE_HOLDER_SLOT,
+JS_SetReservedSlot(prototype.ptr, DOM_PROTO_UNFORGEABLE_HOLDER_SLOT,
                    ObjectValue(&*unforgeable_holder.ptr))"""))
 
         return CGList(code, "\n")
@@ -2483,7 +2506,7 @@ class CGGetPerInterfaceObject(CGAbstractMethod):
                 Argument('MutableHandleObject', 'rval')]
         CGAbstractMethod.__init__(self, descriptor, name,
                                   'void', args, pub=pub, unsafe=True)
-        self.id = idPrefix + "ID::" + self.descriptor.name
+        self.id = idPrefix + "::" + self.descriptor.name
 
     def definition_body(self):
         return CGGeneric("""
@@ -2498,18 +2521,15 @@ assert!(((*JS_GetClass(global.get())).flags & JSCLASS_DOM_GLOBAL) != 0);
 
 /* Check to see whether the interface objects are already installed */
 let proto_or_iface_array = get_proto_or_iface_array(global.get());
-rval.set((*proto_or_iface_array)[%s as usize]);
+rval.set((*proto_or_iface_array)[%(id)s as usize]);
 if !rval.get().is_null() {
     return;
 }
 
-CreateInterfaceObjects(cx, global, receiver, rval);
+CreateInterfaceObjects(cx, global, proto_or_iface_array, receiver);
+rval.set((*proto_or_iface_array)[%(id)s as usize]);
 assert!(!rval.get().is_null());
-(*proto_or_iface_array)[%s as usize] = rval.get();
+""" % {"id": self.id})
-if <*mut JSObject>::needs_post_barrier(rval.get()) {
-    <*mut JSObject>::post_barrier((*proto_or_iface_array).as_mut_ptr().offset(%s as isize))
-}
-""" % (self.id, self.id, self.id))
 
 
 class CGGetProtoObjectMethod(CGGetPerInterfaceObject):
@@ -2518,7 +2538,7 @@ class CGGetProtoObjectMethod(CGGetPerInterfaceObject):
     """
     def __init__(self, descriptor):
         CGGetPerInterfaceObject.__init__(self, descriptor, "GetProtoObject",
-                                         "PrototypeList::", pub=descriptor.hasDescendants())
+                                         "PrototypeList::ID", pub=descriptor.hasDescendants())
 
     def definition_body(self):
         return CGList([
@@ -2535,7 +2555,8 @@ class CGGetConstructorObjectMethod(CGGetPerInterfaceObject):
     """
     def __init__(self, descriptor):
         CGGetPerInterfaceObject.__init__(self, descriptor, "GetConstructorObject",
-                                         "constructors::", pub=descriptor.hasDescendants())
+                                         "PrototypeList::Constructor",
+                                         pub=descriptor.hasDescendants())
 
     def definition_body(self):
         return CGList([
@@ -2623,10 +2644,7 @@ class CGDefineDOMInterfaceMethod(CGAbstractMethod):
 
     def definition_body(self):
         if self.descriptor.interface.isCallback():
-            code = """\
+            code = "CreateInterfaceObjects(cx, global);"
-let mut obj = RootedObject::new(cx, ptr::null_mut());
-CreateInterfaceObjects(cx, global, global, obj.handle_mut());
-"""
         else:
             code = """\
 let mut proto = RootedObject::new(cx, ptr::null_mut());
@@ -4845,10 +4863,8 @@ class CGDescriptor(CGThing):
         cgThings = []
         if not descriptor.interface.isCallback():
             cgThings.append(CGGetProtoObjectMethod(descriptor))
-        if descriptor.interface.hasInterfaceObject():
+        if descriptor.interface.hasInterfaceObject() and descriptor.hasDescendants():
-            # https://github.com/mozilla/servo/issues/2665
+            cgThings.append(CGGetConstructorObjectMethod(descriptor))
-            # cgThings.append(CGGetConstructorObjectMethod(descriptor))
-            pass
 
         for m in descriptor.interface.members:
             if (m.isMethod() and
@@ -4961,22 +4977,12 @@ class CGDescriptor(CGThing):
 
 
 class CGNonNamespacedEnum(CGThing):
-    def __init__(self, enumName, names, values, comment="", deriving="", repr=""):
+    def __init__(self, enumName, names, first, comment="", deriving="", repr=""):
+        # Account for first value
+        entries = ["%s = %s" % (names[0], first)] + names[1:]
 
-        if not values:
+        # Append a Last.
-            values = []
+        entries.append('Last = ' + str(first + len(entries)))
-
-        # Account for explicit enum values.
-        entries = []
-        for i in range(0, len(names)):
-            if len(values) > i and values[i] is not None:
-                entry = "%s = %s" % (names[i], values[i])
-            else:
-                entry = names[i]
-            entries.append(entry)
-
-        # Append a Count.
-        entries.append('Count = ' + str(len(entries)))
 
         # Indent.
         entries = ['    ' + e for e in entries]
@@ -5322,8 +5328,8 @@ class CGBindingRoot(CGThing):
             'dom::bindings::reflector::{Reflectable}',
             'dom::bindings::utils::{ConstantSpec, DOMClass, DOMJSClass}',
             'dom::bindings::utils::{DOM_PROTO_UNFORGEABLE_HOLDER_SLOT, JSCLASS_DOM_GLOBAL}',
-            'dom::bindings::utils::{NonNullJSNative, create_dom_global, finalize_global}',
+            'dom::bindings::utils::{NonNullJSNative, ProtoOrIfaceArray, create_dom_global}',
-            'dom::bindings::utils::{find_enum_string_index, generic_getter}',
+            'dom::bindings::utils::{finalize_global, find_enum_string_index, generic_getter}',
             'dom::bindings::utils::{generic_lenient_getter, generic_lenient_setter}',
             'dom::bindings::utils::{generic_method, generic_setter, get_array_index_from_id}',
             'dom::bindings::utils::{get_dictionary_property, get_property_on_prototype}',
@@ -5975,23 +5981,28 @@ class GlobalGenRoots():
     @staticmethod
     def PrototypeList(config):
         # Prototype ID enum.
-        protos = [d.name for d in config.getDescriptors(isCallback=False)]
+        interfaces = config.getDescriptors(isCallback=False)
+        protos = [d.name for d in interfaces]
+        constructors = [d.name for d in interfaces if d.hasDescendants()]
         proxies = [d.name for d in config.getDescriptors(proxy=True)]
 
         return CGList([
             CGGeneric(AUTOGENERATED_WARNING_COMMENT),
+            CGGeneric("pub const PROTO_OR_IFACE_LENGTH: usize = %d;\n" % (len(protos) + len(constructors))),
             CGGeneric("pub const MAX_PROTO_CHAIN_LENGTH: usize = %d;\n\n" % config.maxProtoChainLength),
-            CGNonNamespacedEnum('ID', protos, [0], deriving="PartialEq, Copy, Clone", repr="u16"),
+            CGNonNamespacedEnum('ID', protos, 0, deriving="PartialEq, Copy, Clone", repr="u16"),
+            CGNonNamespacedEnum('Constructor', constructors, len(protos),
+                                deriving="PartialEq, Copy, Clone", repr="u16"),
             CGWrapper(CGIndenter(CGList([CGGeneric('"' + name + '"') for name in protos],
                                         ",\n"),
                                  indentLevel=4),
                       pre="static INTERFACES: [&'static str; %d] = [\n" % len(protos),
                       post="\n];\n\n"),
             CGGeneric("pub fn proto_id_to_name(proto_id: u16) -> &'static str {\n"
-                      "    debug_assert!(proto_id < ID::Count as u16);\n"
+                      "    debug_assert!(proto_id < ID::Last as u16);\n"
                       "    INTERFACES[proto_id as usize]\n"
                       "}\n\n"),
-            CGNonNamespacedEnum('Proxies', proxies, [0], deriving="PartialEq, Copy, Clone"),
+            CGNonNamespacedEnum('Proxies', proxies, 0, deriving="PartialEq, Copy, Clone"),
         ])
 
     @staticmethod

components/script/dom/bindings/interface.rs

@@ -144,20 +144,19 @@ pub unsafe fn create_noncallback_interface_object(
         constants: &'static [ConstantSpec],
         interface_prototype_object: HandleObject,
         name: &'static [u8],
-        length: u32) {
+        length: u32,
-    let mut interface_object = RootedObject::new(cx, ptr::null_mut());
+        rval: MutableHandleObject) {
     create_object(cx,
                   proto,
                   &*(class as *const _ as *const JSClass),
                   static_methods,
                   static_properties,
                   constants,
-                  interface_object.handle_mut());
+                  rval);
-    assert!(JS_LinkConstructorAndPrototype(cx, interface_object.handle(),
+    assert!(JS_LinkConstructorAndPrototype(cx, rval.handle(), interface_prototype_object));
-                                           interface_prototype_object));
+    define_name(cx, rval.handle(), name);
-    define_name(cx, interface_object.handle(), name);
+    define_length(cx, rval.handle(), length);
-    define_length(cx, interface_object.handle(), length);
+    define_on_global_object(cx, receiver, name, rval.handle());
-    define_on_global_object(cx, receiver, name, interface_object.handle());
 }
 
 /// Create and define the named constructors of a non-callback interface.

components/script/dom/bindings/utils.rs

@@ -5,7 +5,7 @@
 //! Various utilities to glue JavaScript and the DOM implementation together.
 
 use dom::bindings::codegen::PrototypeList;
-use dom::bindings::codegen::PrototypeList::MAX_PROTO_CHAIN_LENGTH;
+use dom::bindings::codegen::PrototypeList::{MAX_PROTO_CHAIN_LENGTH, PROTO_OR_IFACE_LENGTH};
 use dom::bindings::conversions::{DOM_OBJECT_SLOT, is_dom_class};
 use dom::bindings::conversions::{private_from_proto_check, root_from_handleobject};
 use dom::bindings::error::throw_invalid_this;
@@ -186,8 +186,8 @@ pub unsafe extern "C" fn throwing_constructor(cx: *mut JSContext,
     false
 }
 
-/// An array of *mut JSObject of size PrototypeList::ID::Count
+/// An array of *mut JSObject of size PROTO_OR_IFACE_LENGTH.
-pub type ProtoOrIfaceArray = [*mut JSObject; PrototypeList::ID::Count as usize];
+pub type ProtoOrIfaceArray = [*mut JSObject; PROTO_OR_IFACE_LENGTH];
 
 /// Gets the property `id` on  `proxy`'s prototype. If it exists, `*found` is
 /// set to true and `*vp` to the value, otherwise `*found` is set to false.
@@ -384,7 +384,7 @@ pub fn create_dom_global(cx: *mut JSContext,
         // avoid getting trace hooks called on a partially initialized object.
         JS_SetReservedSlot(obj.ptr, DOM_OBJECT_SLOT, PrivateValue(private));
         let proto_array: Box<ProtoOrIfaceArray> =
-            box [0 as *mut JSObject; PrototypeList::ID::Count as usize];
+            box [0 as *mut JSObject; PROTO_OR_IFACE_LENGTH];
         JS_SetReservedSlot(obj.ptr,
                            DOM_PROTOTYPE_SLOT,
                            PrivateValue(Box::into_raw(proto_array) as *const libc::c_void));
@@ -400,7 +400,7 @@ pub fn create_dom_global(cx: *mut JSContext,
 pub unsafe fn finalize_global(obj: *mut JSObject) {
     let protolist = get_proto_or_iface_array(obj);
     let list = (*protolist).as_mut_ptr();
-    for idx in 0..(PrototypeList::ID::Count as isize) {
+    for idx in 0..PROTO_OR_IFACE_LENGTH as isize {
         let entry = list.offset(idx);
         let value = *entry;
         if <*mut JSObject>::needs_post_barrier(value) {

tests/wpt/metadata/FileAPI/idlharness.html.ini

@@ -9,9 +9,6 @@
   [URL interface: operation revokeObjectURL(DOMString)]
     expected: FAIL
 
-  [File interface: existence and properties of interface object]
-    expected: FAIL
-
   [File interface object length]
     expected: FAIL
 
@@ -63,9 +60,6 @@
   [FileList interface: file_input.files must inherit property "length" with the proper type (1)]
     expected: FAIL
 
-  [FileReader interface: existence and properties of interface object]
-    expected: FAIL
-
   [FileReaderSync interface: existence and properties of interface object]
     expected: FAIL
 

tests/wpt/metadata/FileAPI/idlharness.worker.js.ini

@@ -9,9 +9,6 @@
   [URL interface: operation revokeObjectURL(DOMString)]
     expected: FAIL
 
-  [File interface: existence and properties of interface object]
-    expected: FAIL
-
   [File interface object length]
     expected: FAIL
 
@@ -48,9 +45,6 @@
   [Blob interface: new File(["myFileBits"\], "myFileName") must inherit property "close" with the proper type (4)]
     expected: FAIL
 
-  [FileReader interface: existence and properties of interface object]
-    expected: FAIL
-
   [FileReader interface: operation readAsArrayBuffer(Blob)]
     expected: FAIL
 

tests/wpt/metadata/XMLHttpRequest/interfaces.html.ini

@@ -1,14 +0,0 @@
-[interfaces.html]
-  type: testharness
-  [ProgressEvent interface: existence and properties of interface object]
-    expected: FAIL
-
-  [XMLHttpRequestEventTarget interface: existence and properties of interface object]
-    expected: FAIL
-
-  [XMLHttpRequestUpload interface: existence and properties of interface object]
-    expected: FAIL
-
-  [XMLHttpRequest interface: existence and properties of interface object]
-    expected: FAIL
-

tests/wpt/metadata/dom/interfaces.html.ini

@@ -1,8 +1,5 @@
 [interfaces.html]
   type: testharness
-  [CustomEvent interface: existence and properties of interface object]
-    expected: FAIL
-
   [MutationObserver interface: existence and properties of interface object]
     expected: FAIL
 
@@ -63,12 +60,6 @@
   [MutationRecord interface: attribute oldValue]
     expected: FAIL
 
-  [Node interface: existence and properties of interface object]
-    expected: FAIL
-
-  [Document interface: existence and properties of interface object]
-    expected: FAIL
-
   [Document interface: attribute origin]
     expected: FAIL
 
@@ -96,9 +87,6 @@
   [Document interface: calling queryAll(DOMString) on xmlDoc with too few arguments must throw TypeError]
     expected: FAIL
 
-  [DocumentFragment interface: existence and properties of interface object]
-    expected: FAIL
-
   [DocumentFragment interface: operation query(DOMString)]
     expected: FAIL
 
@@ -117,12 +105,6 @@
   [DocumentFragment interface: calling queryAll(DOMString) on document.createDocumentFragment() with too few arguments must throw TypeError]
     expected: FAIL
 
-  [DocumentType interface: existence and properties of interface object]
-    expected: FAIL
-
-  [Element interface: existence and properties of interface object]
-    expected: FAIL
-
   [Element interface: operation hasAttributes()]
     expected: FAIL
 
@@ -180,18 +162,6 @@
   [NamedNodeMap interface: operation setNamedItemNS(Attr)]
     expected: FAIL
 
-  [CharacterData interface: existence and properties of interface object]
-    expected: FAIL
-
-  [Text interface: existence and properties of interface object]
-    expected: FAIL
-
-  [ProcessingInstruction interface: existence and properties of interface object]
-    expected: FAIL
-
-  [Comment interface: existence and properties of interface object]
-    expected: FAIL
-
   [Range interface: stringifier]
     expected: FAIL
 

tests/wpt/metadata/html/dom/interfaces.html.ini

@@ -1362,9 +1362,6 @@
   [HTMLCollection interface: calling namedItem(DOMString) on document.all with too few arguments must throw TypeError]
     expected: FAIL
 
-  [HTMLFormControlsCollection interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLFormControlsCollection interface: operation namedItem(DOMString)]
     expected: FAIL
 
@@ -1554,9 +1551,6 @@
   [Stringification of document.cssElementMap]
     expected: FAIL
 
-  [HTMLElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLElement interface: attribute translate]
     expected: FAIL
 
@@ -2058,27 +2052,12 @@
   [Element interface: calling queryAll(DOMString) on document.createElement("noscript") with too few arguments must throw TypeError]
     expected: FAIL
 
-  [HTMLUnknownElement interface: existence and properties of interface object]
-    expected: FAIL
-
-  [HTMLHtmlElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLHtmlElement interface: attribute version]
     expected: FAIL
 
   [HTMLHtmlElement interface: document.createElement("html") must inherit property "version" with the proper type (0)]
     expected: FAIL
 
-  [HTMLHeadElement interface: existence and properties of interface object]
-    expected: FAIL
-
-  [HTMLTitleElement interface: existence and properties of interface object]
-    expected: FAIL
-
-  [HTMLBaseElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLBaseElement interface: attribute href]
     expected: FAIL
 
@@ -2091,9 +2070,6 @@
   [HTMLBaseElement interface: document.createElement("base") must inherit property "target" with the proper type (1)]
     expected: FAIL
 
-  [HTMLLinkElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLLinkElement interface: attribute crossOrigin]
     expected: FAIL
 
@@ -2109,9 +2085,6 @@
   [HTMLLinkElement interface: document.createElement("link") must inherit property "sheet" with the proper type (11)]
     expected: FAIL
 
-  [HTMLMetaElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLMetaElement interface: attribute httpEquiv]
     expected: FAIL
 
@@ -2124,9 +2097,6 @@
   [HTMLMetaElement interface: document.createElement("meta") must inherit property "scheme" with the proper type (3)]
     expected: FAIL
 
-  [HTMLStyleElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLStyleElement interface: attribute media]
     expected: FAIL
 
@@ -2148,9 +2118,6 @@
   [HTMLStyleElement interface: document.createElement("style") must inherit property "sheet" with the proper type (3)]
     expected: FAIL
 
-  [HTMLBodyElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLBodyElement interface: attribute link]
     expected: FAIL
 
@@ -2235,9 +2202,6 @@
   [HTMLBodyElement interface: document.createElement("body") must inherit property "onpopstate" with the proper type (16)]
     expected: FAIL
 
-  [HTMLHeadingElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLHeadingElement interface: attribute align]
     expected: FAIL
 
@@ -2259,18 +2223,12 @@
   [HTMLHeadingElement interface: document.createElement("h6") must inherit property "align" with the proper type (0)]
     expected: FAIL
 
-  [HTMLParagraphElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLParagraphElement interface: attribute align]
     expected: FAIL
 
   [HTMLParagraphElement interface: document.createElement("p") must inherit property "align" with the proper type (0)]
     expected: FAIL
 
-  [HTMLHRElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLHRElement interface: attribute align]
     expected: FAIL
 
@@ -2289,9 +2247,6 @@
   [HTMLHRElement interface: document.createElement("hr") must inherit property "size" with the proper type (3)]
     expected: FAIL
 
-  [HTMLPreElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLPreElement interface: attribute width]
     expected: FAIL
 
@@ -2307,9 +2262,6 @@
   [HTMLPreElement interface: document.createElement("xmp") must inherit property "width" with the proper type (0)]
     expected: FAIL
 
-  [HTMLQuoteElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLQuoteElement interface: attribute cite]
     expected: FAIL
 
@@ -2319,9 +2271,6 @@
   [HTMLQuoteElement interface: document.createElement("q") must inherit property "cite" with the proper type (0)]
     expected: FAIL
 
-  [HTMLOListElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLOListElement interface: attribute reversed]
     expected: FAIL
 
@@ -2334,18 +2283,12 @@
   [HTMLOListElement interface: attribute compact]
     expected: FAIL
 
-  [HTMLUListElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLUListElement interface: attribute compact]
     expected: FAIL
 
   [HTMLUListElement interface: attribute type]
     expected: FAIL
 
-  [HTMLLIElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLLIElement interface: attribute value]
     expected: FAIL
 
@@ -2358,18 +2301,9 @@
   [HTMLLIElement interface: document.createElement("li") must inherit property "type" with the proper type (1)]
     expected: FAIL
 
-  [HTMLDListElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLDListElement interface: attribute compact]
     expected: FAIL
 
-  [HTMLDivElement interface: existence and properties of interface object]
-    expected: FAIL
-
-  [HTMLAnchorElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLAnchorElement interface: attribute target]
     expected: FAIL
 
@@ -2412,39 +2346,24 @@
   [HTMLAnchorElement interface: document.createElement("a") must inherit property "charset" with the proper type (9)]
     expected: FAIL
 
-  [HTMLDataElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLDataElement interface: attribute value]
     expected: FAIL
 
   [HTMLDataElement interface: document.createElement("data") must inherit property "value" with the proper type (0)]
     expected: FAIL
 
-  [HTMLTimeElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLTimeElement interface: attribute dateTime]
     expected: FAIL
 
   [HTMLTimeElement interface: document.createElement("time") must inherit property "dateTime" with the proper type (0)]
     expected: FAIL
 
-  [HTMLSpanElement interface: existence and properties of interface object]
-    expected: FAIL
-
-  [HTMLBRElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLBRElement interface: attribute clear]
     expected: FAIL
 
   [HTMLBRElement interface: document.createElement("br") must inherit property "clear" with the proper type (0)]
     expected: FAIL
 
-  [HTMLModElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLModElement interface: attribute cite]
     expected: FAIL
 
@@ -2481,9 +2400,6 @@
   [Stringification of document.createElement("picture")]
     expected: FAIL
 
-  [HTMLImageElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLImageElement interface: attribute srcset]
     expected: FAIL
 
@@ -2529,9 +2445,6 @@
   [HTMLImageElement interface: new Image() must inherit property "lowsrc" with the proper type (14)]
     expected: FAIL
 
-  [HTMLIFrameElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLIFrameElement interface: attribute srcdoc]
     expected: FAIL
 
@@ -2562,9 +2475,6 @@
   [HTMLIFrameElement interface: attribute marginWidth]
     expected: FAIL
 
-  [HTMLEmbedElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLEmbedElement interface: attribute src]
     expected: FAIL
 
@@ -2613,9 +2523,6 @@
   [HTMLEmbedElement interface: document.createElement("embed") must inherit property "name" with the proper type (7)]
     expected: FAIL
 
-  [HTMLObjectElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLObjectElement interface: attribute data]
     expected: FAIL
 
@@ -2772,9 +2679,6 @@
   [HTMLObjectElement interface: document.createElement("object") must inherit property "border" with the proper type (26)]
     expected: FAIL
 
-  [HTMLParamElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLParamElement interface: attribute name]
     expected: FAIL
 
@@ -2799,9 +2703,6 @@
   [HTMLParamElement interface: document.createElement("param") must inherit property "valueType" with the proper type (3)]
     expected: FAIL
 
-  [HTMLVideoElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLVideoElement interface: attribute width]
     expected: FAIL
 
@@ -2973,9 +2874,6 @@
   [HTMLMediaElement interface: calling addTextTrack(TextTrackKind,DOMString,DOMString) on document.createElement("video") with too few arguments must throw TypeError]
     expected: FAIL
 
-  [HTMLAudioElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLMediaElement interface: document.createElement("audio") must inherit property "error" with the proper type (0)]
     expected: FAIL
 
@@ -3264,9 +3162,6 @@
   [HTMLMediaElement interface: calling addTextTrack(TextTrackKind,DOMString,DOMString) on new Audio() with too few arguments must throw TypeError]
     expected: FAIL
 
-  [HTMLSourceElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLSourceElement interface: attribute src]
     expected: FAIL
 
@@ -3297,9 +3192,6 @@
   [HTMLSourceElement interface: document.createElement("source") must inherit property "media" with the proper type (4)]
     expected: FAIL
 
-  [HTMLTrackElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLTrackElement interface: attribute kind]
     expected: FAIL
 
@@ -3378,9 +3270,6 @@
   [HTMLTrackElement interface: document.createElement("track") must inherit property "track" with the proper type (10)]
     expected: FAIL
 
-  [HTMLMediaElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLMediaElement interface: attribute error]
     expected: FAIL
 
@@ -4284,9 +4173,6 @@
   [Event interface: calling initEvent(DOMString,boolean,boolean) on new TrackEvent("addtrack"; {track:document.createElement("track").track}) with too few arguments must throw TypeError]
     expected: FAIL
 
-  [HTMLMapElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLMapElement interface: attribute name]
     expected: FAIL
 
@@ -4305,9 +4191,6 @@
   [HTMLMapElement interface: document.createElement("map") must inherit property "images" with the proper type (2)]
     expected: FAIL
 
-  [HTMLAreaElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLAreaElement interface: attribute alt]
     expected: FAIL
 
@@ -4356,9 +4239,6 @@
   [HTMLAreaElement interface: document.createElement("area") must inherit property "noHref" with the proper type (10)]
     expected: FAIL
 
-  [HTMLTableElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLTableElement interface: attribute tHead]
     expected: FAIL
 
@@ -4479,18 +4359,12 @@
   [HTMLTableElement interface: document.createElement("table") must inherit property "cellSpacing" with the proper type (24)]
     expected: FAIL
 
-  [HTMLTableCaptionElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLTableCaptionElement interface: attribute align]
     expected: FAIL
 
   [HTMLTableCaptionElement interface: document.createElement("caption") must inherit property "align" with the proper type (0)]
     expected: FAIL
 
-  [HTMLTableColElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLTableColElement interface: attribute span]
     expected: FAIL
 
@@ -4545,9 +4419,6 @@
   [HTMLTableColElement interface: document.createElement("col") must inherit property "width" with the proper type (5)]
     expected: FAIL
 
-  [HTMLTableSectionElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLTableSectionElement interface: attribute align]
     expected: FAIL
 
@@ -4596,9 +4467,6 @@
   [HTMLTableSectionElement interface: document.createElement("tfoot") must inherit property "vAlign" with the proper type (6)]
     expected: FAIL
 
-  [HTMLTableRowElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLTableRowElement interface: attribute rowIndex]
     expected: FAIL
 
@@ -4635,9 +4503,6 @@
   [HTMLTableRowElement interface: document.createElement("tr") must inherit property "vAlign" with the proper type (8)]
     expected: FAIL
 
-  [HTMLTableDataCellElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLTableDataCellElement interface: attribute abbr]
     expected: FAIL
 
@@ -4671,9 +4536,6 @@
   [HTMLTableCellElement interface: document.createElement("td") must inherit property "vAlign" with the proper type (11)]
     expected: FAIL
 
-  [HTMLTableHeaderCellElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLTableHeaderCellElement interface: attribute scope]
     expected: FAIL
 
@@ -4725,9 +4587,6 @@
   [HTMLTableCellElement interface: document.createElement("th") must inherit property "vAlign" with the proper type (11)]
     expected: FAIL
 
-  [HTMLTableCellElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLTableCellElement interface: attribute rowSpan]
     expected: FAIL
 
@@ -4755,9 +4614,6 @@
   [HTMLTableCellElement interface: attribute vAlign]
     expected: FAIL
 
-  [HTMLFormElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLFormElement interface: operation checkValidity()]
     expected: FAIL
 
@@ -4776,12 +4632,6 @@
   [HTMLFormElement interface: document.createElement("form") must inherit property "requestAutocomplete" with the proper type (17)]
     expected: FAIL
 
-  [HTMLLabelElement interface: existence and properties of interface object]
-    expected: FAIL
-
-  [HTMLInputElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLInputElement interface: attribute accept]
     expected: FAIL
 
@@ -5034,9 +4884,6 @@
   [HTMLInputElement interface: document.createElement("input") must inherit property "useMap" with the proper type (57)]
     expected: FAIL
 
-  [HTMLButtonElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLButtonElement interface: attribute autofocus]
     expected: FAIL
 
@@ -5082,9 +4929,6 @@
   [HTMLButtonElement interface: calling setCustomValidity(DOMString) on document.createElement("button") with too few arguments must throw TypeError]
     expected: FAIL
 
-  [HTMLSelectElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLSelectElement interface: attribute autocomplete]
     expected: FAIL
 
@@ -5190,21 +5034,12 @@
   [HTMLSelectElement interface: calling setCustomValidity(DOMString) on document.createElement("select") with too few arguments must throw TypeError]
     expected: FAIL
 
-  [HTMLDataListElement interface: existence and properties of interface object]
-    expected: FAIL
-
-  [HTMLOptGroupElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLOptGroupElement interface: attribute label]
     expected: FAIL
 
   [HTMLOptGroupElement interface: document.createElement("optgroup") must inherit property "label" with the proper type (1)]
     expected: FAIL
 
-  [HTMLOptionElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLOptionElement interface: attribute form]
     expected: FAIL
 
@@ -5217,9 +5052,6 @@
   [HTMLOptionElement interface: document.createElement("option") must inherit property "index" with the proper type (7)]
     expected: FAIL
 
-  [HTMLTextAreaElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLTextAreaElement interface: attribute autocomplete]
     expected: FAIL
 
@@ -5457,9 +5289,6 @@
   [HTMLKeygenElement interface: document.createElement("keygen") must inherit property "labels" with the proper type (13)]
     expected: FAIL
 
-  [HTMLOutputElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLOutputElement interface: attribute htmlFor]
     expected: FAIL
 
@@ -5523,9 +5352,6 @@
   [HTMLOutputElement interface: calling setCustomValidity(DOMString) on document.createElement("output") with too few arguments must throw TypeError]
     expected: FAIL
 
-  [HTMLProgressElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLProgressElement interface: attribute value]
     expected: FAIL
 
@@ -5544,9 +5370,6 @@
   [HTMLProgressElement interface: document.createElement("progress") must inherit property "position" with the proper type (2)]
     expected: FAIL
 
-  [HTMLMeterElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLMeterElement interface: attribute value]
     expected: FAIL
 
@@ -5583,9 +5406,6 @@
   [HTMLMeterElement interface: document.createElement("meter") must inherit property "optimum" with the proper type (5)]
     expected: FAIL
 
-  [HTMLFieldSetElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLFieldSetElement interface: attribute name]
     expected: FAIL
 
@@ -5607,9 +5427,6 @@
   [HTMLFieldSetElement interface: operation setCustomValidity(DOMString)]
     expected: FAIL
 
-  [HTMLLegendElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLLegendElement interface: attribute form]
     expected: FAIL
 
@@ -5820,9 +5637,6 @@
   [RelatedEvent interface: attribute relatedTarget]
     expected: FAIL
 
-  [HTMLDialogElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLDialogElement interface: operation show([object Object\],[object Object\])]
     expected: FAIL
 
@@ -5832,9 +5646,6 @@
   [HTMLDialogElement interface: operation close(DOMString)]
     expected: FAIL
 
-  [HTMLScriptElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLScriptElement interface: attribute type]
     expected: FAIL
 
@@ -5877,12 +5688,6 @@
   [HTMLScriptElement interface: document.createElement("script") must inherit property "htmlFor" with the proper type (8)]
     expected: FAIL
 
-  [HTMLTemplateElement interface: existence and properties of interface object]
-    expected: FAIL
-
-  [HTMLCanvasElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLCanvasElement interface: operation probablySupportsContext(DOMString,any)]
     expected: FAIL
 
@@ -6402,9 +6207,6 @@
   [DragEvent interface: attribute dataTransfer]
     expected: FAIL
 
-  [Window interface: existence and properties of interface object]
-    expected: FAIL
-
   [Window interface: existence and properties of interface prototype object]
     expected: FAIL
 
@@ -7461,9 +7263,6 @@
   [EventTarget interface: calling dispatchEvent(Event) on window.applicationCache with too few arguments must throw TypeError]
     expected: FAIL
 
-  [ErrorEvent interface: existence and properties of interface object]
-    expected: FAIL
-
   [Navigator interface: attribute language]
     expected: FAIL
 
@@ -7719,9 +7518,6 @@
   [ImageBitmap interface: attribute height]
     expected: FAIL
 
-  [MessageEvent interface: existence and properties of interface object]
-    expected: FAIL
-
   [MessageEvent interface: attribute source]
     expected: FAIL
 
@@ -7731,18 +7527,9 @@
   [MessageEvent interface: operation initMessageEvent(DOMString,boolean,boolean,any,DOMString,DOMString,[object Object\],[object Object\],MessagePort)]
     expected: FAIL
 
-  [EventSource interface: existence and properties of interface object]
-    expected: FAIL
-
-  [WebSocket interface: existence and properties of interface object]
-    expected: FAIL
-
   [WebSocket interface: attribute extensions]
     expected: FAIL
 
-  [CloseEvent interface: existence and properties of interface object]
-    expected: FAIL
-
   [MessageChannel interface: existence and properties of interface object]
     expected: FAIL
 
@@ -7833,9 +7620,6 @@
   [BroadcastChannel interface: attribute onmessage]
     expected: FAIL
 
-  [WorkerGlobalScope interface: existence and properties of interface object]
-    expected: FAIL
-
   [WorkerGlobalScope interface: operation close()]
     expected: FAIL
 
@@ -7854,9 +7638,6 @@
   [WorkerGlobalScope interface: operation createImageBitmap(ImageBitmapSource,long,long,long,long)]
     expected: FAIL
 
-  [DedicatedWorkerGlobalScope interface: existence and properties of interface object]
-    expected: FAIL
-
   [DedicatedWorkerGlobalScope interface: operation postMessage(any,[object Object\])]
     expected: FAIL
 
@@ -7884,9 +7665,6 @@
   [SharedWorkerGlobalScope interface: attribute onconnect]
     expected: FAIL
 
-  [Worker interface: existence and properties of interface object]
-    expected: FAIL
-
   [Worker interface: operation terminate()]
     expected: FAIL
 
@@ -7917,12 +7695,6 @@
   [WorkerNavigator interface: attribute onLine]
     expected: FAIL
 
-  [StorageEvent interface: existence and properties of interface object]
-    expected: FAIL
-
-  [HTMLAppletElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLAppletElement interface: attribute align]
     expected: FAIL
 
@@ -8097,9 +7869,6 @@
   [HTMLMarqueeElement interface: document.createElement("marquee") must inherit property "stop" with the proper type (15)]
     expected: FAIL
 
-  [HTMLFrameSetElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLFrameSetElement interface: attribute cols]
     expected: FAIL
 
@@ -8190,9 +7959,6 @@
   [HTMLFrameSetElement interface: document.createElement("frameset") must inherit property "onunload" with the proper type (14)]
     expected: FAIL
 
-  [HTMLFrameElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLFrameElement interface: attribute name]
     expected: FAIL
 
@@ -8253,18 +8019,12 @@
   [HTMLFrameElement interface: document.createElement("frame") must inherit property "marginWidth" with the proper type (9)]
     expected: FAIL
 
-  [HTMLDirectoryElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [HTMLDirectoryElement interface: attribute compact]
     expected: FAIL
 
   [HTMLDirectoryElement interface: document.createElement("dir") must inherit property "compact" with the proper type (0)]
     expected: FAIL
 
-  [HTMLFontElement interface: existence and properties of interface object]
-    expected: FAIL
-
   [Window interface: window must inherit property "close" with the proper type (13)]
     expected: FAIL
 

tests/wpt/metadata/webstorage/idlharness.html.ini

@@ -3,9 +3,6 @@
   [Window interface: attribute localStorage]
     expected: FAIL
 
-  [StorageEvent interface: existence and properties of interface object]
-    expected: FAIL
-
   [Window interface: attribute sessionStorage]
     expected: FAIL
 

tests/wpt/metadata/workers/interfaces.worker.js.ini

@@ -1,8 +1,5 @@
 [interfaces.worker]
   type: testharness
-  [WorkerGlobalScope interface: existence and properties of interface object]
-    expected: FAIL
-
   [WorkerGlobalScope interface: operation close()]
     expected: FAIL
 
@@ -18,9 +15,6 @@
   [WorkerGlobalScope interface: attribute ononline]
     expected: FAIL
 
-  [DedicatedWorkerGlobalScope interface: existence and properties of interface object]
-    expected: FAIL
-
   [DedicatedWorkerGlobalScope interface: operation postMessage(any,[object Object\])]
     expected: FAIL