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Auto merge of #9067 - nox:unenumerable-named-properties, r=jdm

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Make NamedNodeMap's named properties unenumerable

https://dom.spec.whatwg.org/#dom-htmlcollection-item

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This commit is contained in:
bors-servo 2016-02-23 22:58:30 +05:30
commit 7192495e1a
15 changed files with 125 additions and 51 deletions
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90
components/script/dom/bindings/codegen/CodegenRust.py
View file

@ -2602,13 +2602,25 @@ class CGDefineProxyHandler(CGAbstractMethod):
if self.descriptor.operations['NamedDeleter']:
customDelete = 'delete'
body = """\
getOwnEnumerablePropertyKeys = "own_property_keys"
if self.descriptor.interface.getExtendedAttribute("LegacyUnenumerableNamedProperties"):
getOwnEnumerablePropertyKeys = "getOwnEnumerablePropertyKeys"
args = {
"defineProperty": customDefineProperty,
"delete": customDelete,
"getOwnEnumerablePropertyKeys": getOwnEnumerablePropertyKeys,
"trace": TRACE_HOOK_NAME,
"finalize": FINALIZE_HOOK_NAME,
}
return CGGeneric("""\
let traps = ProxyTraps {
enter: None,
getOwnPropertyDescriptor: Some(getOwnPropertyDescriptor),
defineProperty: Some(%s),
defineProperty: Some(%(defineProperty)s),
ownPropertyKeys: Some(own_property_keys),
delete_: Some(%s),
delete_: Some(%(delete)s),
enumerate: None,
preventExtensions: Some(proxyhandler::prevent_extensions),
isExtensible: Some(proxyhandler::is_extensible),
@ -2619,7 +2631,7 @@ let traps = ProxyTraps {
construct: None,
getPropertyDescriptor: Some(get_property_descriptor),
hasOwn: Some(hasOwn),
getOwnEnumerablePropertyKeys: None,
getOwnEnumerablePropertyKeys: Some(%(getOwnEnumerablePropertyKeys)s),
nativeCall: None,
hasInstance: None,
objectClassIs: None,
@ -2627,16 +2639,15 @@ let traps = ProxyTraps {
fun_toString: None,
boxedValue_unbox: None,
defaultValue: None,
trace: Some(%s),
finalize: Some(%s),
trace: Some(%(trace)s),
finalize: Some(%(finalize)s),
objectMoved: None,
isCallable: None,
isConstructor: None,
};
CreateProxyHandler(&traps, &Class as *const _ as *const _)\
""" % (customDefineProperty, customDelete, TRACE_HOOK_NAME, FINALIZE_HOOK_NAME)
return CGGeneric(body)
""" % args)
class CGDefineDOMInterfaceMethod(CGAbstractMethod):
@ -4321,10 +4332,12 @@ class CGDOMJSProxyHandler_getOwnPropertyDescriptor(CGAbstractExternMethod):
get = "let index = get_array_index_from_id(cx, id);\n"
if indexedGetter:
readonly = toStringBool(self.descriptor.operations['IndexedSetter'] is None)
attrs = "JSPROP_ENUMERATE"
if self.descriptor.operations['IndexedSetter'] is None:
attrs += " | JSPROP_READONLY"
fillDescriptor = ("desc.get().value = result_root.ptr;\n"
"fill_property_descriptor(&mut *desc.ptr, *proxy.ptr, %s);\n"
"return true;" % readonly)
"return true;" % attrs)
templateValues = {
'jsvalRef': 'result_root.handle_mut()',
'successCode': fillDescriptor,
@ -4338,10 +4351,18 @@ class CGDOMJSProxyHandler_getOwnPropertyDescriptor(CGAbstractExternMethod):
namedGetter = self.descriptor.operations['NamedGetter']
if namedGetter:
readonly = toStringBool(self.descriptor.operations['NamedSetter'] is None)
attrs = []
if not self.descriptor.interface.getExtendedAttribute("LegacyUnenumerableNamedProperties"):
attrs.append("JSPROP_ENUMERATE")
if self.descriptor.operations['NamedSetter'] is None:
attrs.append("JSPROP_READONLY")
if attrs:
attrs = " | ".join(attrs)
else:
attrs = "0"
fillDescriptor = ("desc.get().value = result_root.ptr;\n"
"fill_property_descriptor(&mut *desc.ptr, *proxy.ptr, %s);\n"
"return true;" % readonly)
"return true;" % attrs)
templateValues = {
'jsvalRef': 'result_root.handle_mut()',
'successCode': fillDescriptor,
@ -4514,6 +4535,49 @@ class CGDOMJSProxyHandler_ownPropertyKeys(CGAbstractExternMethod):
return CGGeneric(self.getBody())
class CGDOMJSProxyHandler_getOwnEnumerablePropertyKeys(CGAbstractExternMethod):
def __init__(self, descriptor):
assert (descriptor.operations["IndexedGetter"] and
descriptor.interface.getExtendedAttribute("LegacyUnenumerableNamedProperties"))
args = [Argument('*mut JSContext', 'cx'),
Argument('HandleObject', 'proxy'),
Argument('*mut AutoIdVector', 'props')]
CGAbstractExternMethod.__init__(self, descriptor,
"getOwnEnumerablePropertyKeys", "bool", args)
self.descriptor = descriptor
def getBody(self):
body = dedent(
"""
let unwrapped_proxy = UnwrapProxy(proxy);
""")
if self.descriptor.operations['IndexedGetter']:
body += dedent(
"""
for i in 0..(*unwrapped_proxy).Length() {
let rooted_jsid = RootedId::new(cx, int_to_jsid(i as i32));
AppendToAutoIdVector(props, rooted_jsid.handle().get());
}
""")
body += dedent(
"""
let expando = get_expando_object(proxy);
if !expando.is_null() {
let rooted_expando = RootedObject::new(cx, expando);
GetPropertyKeys(cx, rooted_expando.handle(), JSITER_OWNONLY | JSITER_HIDDEN | JSITER_SYMBOLS, props);
}
return true;
""")
return body
def definition_body(self):
return CGGeneric(self.getBody())
class CGDOMJSProxyHandler_hasOwn(CGAbstractExternMethod):
def __init__(self, descriptor):
args = [Argument('*mut JSContext', 'cx'), Argument('HandleObject', 'proxy'),
@ -4963,6 +5027,8 @@ class CGDescriptor(CGThing):
cgThings.append(CGProxyUnwrap(descriptor))
cgThings.append(CGDOMJSProxyHandlerDOMClass(descriptor))
cgThings.append(CGDOMJSProxyHandler_ownPropertyKeys(descriptor))
if descriptor.interface.getExtendedAttribute("LegacyUnenumerableNamedProperties"):
cgThings.append(CGDOMJSProxyHandler_getOwnEnumerablePropertyKeys(descriptor))
cgThings.append(CGDOMJSProxyHandler_getOwnPropertyDescriptor(descriptor))
cgThings.append(CGDOMJSProxyHandler_className(descriptor))
cgThings.append(CGDOMJSProxyHandler_get(descriptor))

9
components/script/dom/bindings/codegen/parser/WebIDL.py
View file

@ -1069,6 +1069,12 @@ class IDLInterface(IDLObjectWithScope, IDLExposureMixins):
specialMembersSeen[memberType] = member
if (self.getExtendedAttribute("LegacyUnenumerableNamedProperties") and
"named getters" not in specialMembersSeen):
raise WebIDLError("[LegacyUnenumerableNamedProperties] used on an interface "
"without a named getter",
[self.location])
if self._isOnGlobalProtoChain:
# Make sure we have no named setters, creators, or deleters
for memberType in ["setter", "creator", "deleter"]:
@ -1417,7 +1423,8 @@ class IDLInterface(IDLObjectWithScope, IDLExposureMixins):
identifier == "UnsafeInPrerendering" or
identifier == "LegacyEventInit" or
identifier == "ProbablyShortLivingObject" or
identifier == "Abstract"):
identifier == "Abstract" or
identifier == "LegacyUnenumerableNamedProperties"):
# Known extended attributes that do not take values
if not attr.noArguments():
raise WebIDLError("[%s] must take no arguments" % identifier,

25
components/script/dom/bindings/codegen/parser/legacy-unenumerable-named-properties.patch Normal file
View file

@ -0,0 +1,25 @@
--- WebIDL.py
+++ WebIDL.py
@@ -1069,6 +1069,12 @@ class IDLInterface(IDLObjectWithScope, IDLExposureMixins):
specialMembersSeen[memberType] = member
+ if (self.getExtendedAttribute("LegacyUnenumerableNamedProperties") and
+ "named getters" not in specialMembersSeen):
+ raise WebIDLError("[LegacyUnenumerableNamedProperties] used on an interface "
+ "without a named getter",
+ [self.location])
+
if self._isOnGlobalProtoChain:
# Make sure we have no named setters, creators, or deleters
for memberType in ["setter", "creator", "deleter"]:
@@ -1417,7 +1423,8 @@ class IDLInterface(IDLObjectWithScope, IDLExposureMixins):
identifier == "UnsafeInPrerendering" or
identifier == "LegacyEventInit" or
identifier == "ProbablyShortLivingObject" or
- identifier == "Abstract"):
+ identifier == "Abstract" or
+ identifier == "LegacyUnenumerableNamedProperties"):
# Known extended attributes that do not take values
if not attr.noArguments():
raise WebIDLError("[%s] must take no arguments" % identifier,

1
components/script/dom/bindings/codegen/parser/update.sh
View file

@ -1,4 +1,5 @@
wget https://mxr.mozilla.org/mozilla-central/source/dom/bindings/parser/WebIDL.py?raw=1 -O WebIDL.py
patch < abstract.patch
patch < legacy-unenumerable-named-properties.patch
# TODO: update test files from https://dxr.mozilla.org/mozilla-central/source/dom/bindings/parser/tests

6
components/script/dom/bindings/proxyhandler.rs
View file

@ -8,6 +8,7 @@
use dom::bindings::conversions::is_dom_proxy;
use dom::bindings::utils::delete_property_by_id;
use js::JSPROP_GETTER;
use js::glue::GetProxyExtra;
use js::glue::InvokeGetOwnPropertyDescriptor;
use js::glue::{GetProxyHandler, SetProxyExtra};
@ -18,7 +19,6 @@ use js::jsapi::{JSContext, JSObject, JSPropertyDescriptor};
use js::jsapi::{JSErrNum, JS_StrictPropertyStub};
use js::jsapi::{JS_DefinePropertyById6, JS_NewObjectWithGivenProto};
use js::jsval::ObjectValue;
use js::{JSPROP_ENUMERATE, JSPROP_GETTER, JSPROP_READONLY};
use libc;
use std::{mem, ptr};
@ -135,9 +135,9 @@ pub fn ensure_expando_object(cx: *mut JSContext, obj: HandleObject) -> *mut JSOb
/// and writable if `readonly` is true.
pub fn fill_property_descriptor(desc: &mut JSPropertyDescriptor,
obj: *mut JSObject,
readonly: bool) {
attrs: u32) {
desc.obj = obj;
desc.attrs = if readonly { JSPROP_READONLY } else { 0 } | JSPROP_ENUMERATE;
desc.attrs = attrs;
desc.getter = None;
desc.setter = None;
}