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Make callbacks' new methods unsafe

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They take raw pointers to contexts and objects.
This commit is contained in:
Anthony Ramine 2018-01-25 11:25:23 +01:00
parent 9c13073075
commit f903da0a7b
3 changed files with 58 additions and 30 deletions
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18
components/script/dom/customelementregistry.rs
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@ -121,7 +121,8 @@ impl CustomElementRegistry {
/// <https://html.spec.whatwg.org/multipage/#dom-customelementregistry-define>
/// Steps 10.3, 10.4
fn get_callbacks(&self, prototype: HandleObject) -> Fallible<LifecycleCallbacks> {
#[allow(unsafe_code)]
unsafe fn get_callbacks(&self, prototype: HandleObject) -> Fallible<LifecycleCallbacks> {
let cx = self.window.get_cx();
// Step 4
@ -164,20 +165,21 @@ impl CustomElementRegistry {
/// <https://html.spec.whatwg.org/multipage/#dom-customelementregistry-define>
/// Step 10.4
#[allow(unsafe_code)]
fn get_callback(cx: *mut JSContext, prototype: HandleObject, name: &[u8]) -> Fallible<Option<Rc<Function>>> {
unsafe fn get_callback(
cx: *mut JSContext,
prototype: HandleObject,
name: &[u8],
) -> Fallible<Option<Rc<Function>>> {
rooted!(in(cx) let mut callback = UndefinedValue());
// Step 10.4.1
if unsafe { !JS_GetProperty(cx,
prototype,
name.as_ptr() as *const _,
callback.handle_mut()) } {
if !JS_GetProperty(cx, prototype, name.as_ptr() as *const _, callback.handle_mut()) {
return Err(Error::JSFailed);
}
// Step 10.4.2
if !callback.is_undefined() {
if !callback.is_object() || unsafe { !IsCallable(callback.to_object()) } {
if !callback.is_object() || !IsCallable(callback.to_object()) {
return Err(Error::Type("Lifecycle callback is not callable".to_owned()));
}
Ok(Some(Function::new(cx, callback.to_object())))
@ -265,7 +267,7 @@ impl CustomElementRegistryMethods for CustomElementRegistry {
rooted!(in(cx) let proto_object = prototype.to_object());
let callbacks = {
let _ac = JSAutoCompartment::new(cx, proto_object.get());
match self.get_callbacks(proto_object.handle()) {
match unsafe { self.get_callbacks(proto_object.handle()) } {
Ok(callbacks) => callbacks,
Err(error) => {
self.element_definition_is_running.set(false);