Use MozTools 4 and update mozjs (#30326)

* Update mozjs

* moztools4 in bootstrap

* no autoconf

* tidy

* switch to servo-build-deps

* update mozjs for real

* glue mozjs

* fmt

* move to servo/mozjs

components/script/dom/bindings/conversions.rs

@@ -356,7 +356,7 @@ pub fn is_dom_proxy(obj: *mut JSObject) -> bool {
     use js::glue::IsProxyHandlerFamily;
     unsafe {
         let clasp = get_object_class(obj);
-        ((*clasp).flags & js::JSCLASS_IS_PROXY) != 0 && IsProxyHandlerFamily(obj) != 0
+        ((*clasp).flags & js::JSCLASS_IS_PROXY) != 0 && IsProxyHandlerFamily(obj)
     }
 }
 
@@ -422,7 +422,7 @@ pub(crate) unsafe fn private_from_proto_check(
     let dom_class = get_dom_class(obj).or_else(|_| {
         if IsWrapper(obj) {
             trace!("found wrapper");
-            obj = UnwrapObjectDynamic(obj, cx, /* stopAtWindowProxy = */ 0);
+            obj = UnwrapObjectDynamic(obj, cx, /* stopAtWindowProxy = */ false);
             if obj.is_null() {
                 trace!("unwrapping security wrapper failed");
                 Err(())

components/script/dom/bindings/htmlconstructor.rs

@@ -113,7 +113,7 @@ unsafe fn html_constructor(
 
     // The new_target might be a cross-compartment wrapper. Get the underlying object
     // so we can do the spec's object-identity checks.
-    rooted!(in(*cx) let new_target_unwrapped = UnwrapObjectDynamic(call_args.new_target().to_object(), *cx, 1));
+    rooted!(in(*cx) let new_target_unwrapped = UnwrapObjectDynamic(call_args.new_target().to_object(), *cx, true));
     if new_target_unwrapped.is_null() {
         throw_dom_exception(cx, global, Error::Type("new.target is null".to_owned()));
         return Err(());

components/script/dom/bindings/interface.rs

@@ -431,7 +431,7 @@ pub fn define_guarded_properties(
 /// be exposed in the global object `obj`.
 pub fn is_exposed_in(object: HandleObject, globals: Globals) -> bool {
     unsafe {
-        let unwrapped = UncheckedUnwrapObject(object.get(), /* stopAtWindowProxy = */ 0);
+        let unwrapped = UncheckedUnwrapObject(object.get(), /* stopAtWindowProxy = */ false);
         let dom_class = get_dom_class(unwrapped).unwrap();
         globals.contains(dom_class.global)
     }

components/script/dom/bindings/utils.rs

@@ -278,7 +278,7 @@ pub unsafe fn find_enum_value<'a, T>(
 /// <https://heycam.github.io/webidl/#dfn-platform-object>
 pub fn is_platform_object_dynamic(obj: *mut JSObject, cx: *mut JSContext) -> bool {
     is_platform_object(obj, &|o| unsafe {
-        UnwrapObjectDynamic(o, cx, /* stopAtWindowProxy = */ 0)
+        UnwrapObjectDynamic(o, cx, /* stopAtWindowProxy = */ false)
     })
 }
 

components/script/dom/globalscope.rs

@@ -2174,7 +2174,7 @@ impl GlobalScope {
         cx: *mut JSContext,
     ) -> DomRoot<Self> {
         if IsWrapper(obj) {
-            obj = UnwrapObjectDynamic(obj, cx, /* stopAtWindowProxy = */ 0);
+            obj = UnwrapObjectDynamic(obj, cx, /* stopAtWindowProxy = */ false);
             assert!(!obj.is_null());
         }
         GlobalScope::from_object(obj)

components/script/script_runtime.rs

@@ -37,6 +37,7 @@ use crate::script_thread::trace_thread;
 use crate::task::TaskBox;
 use crate::task_source::networking::NetworkingTaskSource;
 use crate::task_source::{TaskSource, TaskSourceName};
+use core::ffi::c_char;
 use js::glue::{CollectServoSizes, CreateJobQueue, DeleteJobQueue, DispatchableRun};
 use js::glue::{JobQueueTraps, RUST_js_GetErrorMessage, SetBuildId, StreamConsumerConsumeChunk};
 use js::glue::{
@@ -836,7 +837,7 @@ unsafe extern "C" fn trace_rust_roots(tr: *mut JSTracer, _data: *mut os::raw::c_
 #[allow(unsafe_code)]
 unsafe extern "C" fn servo_build_id(build_id: *mut BuildIdCharVector) -> bool {
     let servo_id = b"Servo\0";
-    SetBuildId(build_id, &servo_id[0], servo_id.len())
+    SetBuildId(build_id, servo_id[0] as *const c_char, servo_id.len())
 }
 
 #[allow(unsafe_code)]