Lazily-define standard ECMAScript classes

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

@@ -1768,17 +1768,21 @@ def __init__(self, descriptor):
     def define(self):
         args = {
             "domClass": DOMClass(self.descriptor),
+            "enumerateHook": "None",
             "finalizeHook": FINALIZE_HOOK_NAME,
             "flags": "0",
             "name": str_to_const_array(self.descriptor.interface.identifier.name),
             "outerObjectHook": self.descriptor.outerObjectHook,
+            "resolveHook": "None",
             "slots": "1",
             "traceHook": TRACE_HOOK_NAME,
         }
         if self.descriptor.isGlobal():
             assert not self.descriptor.weakReferenceable
+            args["enumerateHook"] = "Some(js::jsapi::JS_EnumerateStandardClasses)"
             args["flags"] = "JSCLASS_IS_GLOBAL | JSCLASS_DOM_GLOBAL"
             args["slots"] = "JSCLASS_GLOBAL_SLOT_COUNT + 1"
+            args["resolveHook"] = "Some(js::jsapi::JS_ResolveStandardClass)"
             args["traceHook"] = "js::jsapi::JS_GlobalObjectTraceHook"
         elif self.descriptor.weakReferenceable:
             args["slots"] = "2"
@@ -1793,8 +1797,8 @@ def define(self):
         delProperty: None,
         getProperty: None,
         setProperty: None,
-        enumerate: None,
-        resolve: None,
+        enumerate: %(enumerateHook)s,
+        resolve: %(resolveHook)s,
         convert: None,
         finalize: Some(%(finalizeHook)s),
         call: None,

components/script/dom/bindings/utils.rs

@@ -23,12 +23,11 @@ use js::glue::{RUST_JSID_TO_INT, UnwrapObject};
 use js::jsapi::{CallArgs, CompartmentOptions, DOMCallbacks, GetGlobalForObjectCrossCompartment};
 use js::jsapi::{HandleId, HandleObject, HandleValue, Heap, JSAutoCompartment, JSClass, JSContext};
 use js::jsapi::{JSJitInfo, JSObject, JSTraceOp, JSTracer, JSVersion, JSWrapObjectCallbacks};
-use js::jsapi::{JS_DeletePropertyById1, JS_FireOnNewGlobalObject};
-use js::jsapi::{JS_ForwardGetPropertyTo, JS_GetClass, JS_GetProperty, JS_GetPrototype};
-use js::jsapi::{JS_GetReservedSlot, JS_HasProperty, JS_HasPropertyById, JS_InitStandardClasses};
-use js::jsapi::{JS_IsExceptionPending, JS_NewGlobalObject, JS_ObjectToOuterObject, JS_SetProperty};
-use js::jsapi::{JS_SetReservedSlot, MutableHandleValue, ObjectOpResult, OnNewGlobalHookOption};
-use js::jsapi::{RootedObject};
+use js::jsapi::{JS_DeletePropertyById1, JS_FireOnNewGlobalObject, JS_ForwardGetPropertyTo};
+use js::jsapi::{JS_GetClass, JS_GetProperty, JS_GetPrototype, JS_GetReservedSlot, JS_HasProperty};
+use js::jsapi::{JS_HasPropertyById, JS_IsExceptionPending, JS_NewGlobalObject};
+use js::jsapi::{JS_ObjectToOuterObject, JS_SetProperty, JS_SetReservedSlot};
+use js::jsapi::{MutableHandleValue, ObjectOpResult, OnNewGlobalHookOption, RootedObject};
 use js::jsval::{JSVal};
 use js::jsval::{PrivateValue, UndefinedValue};
 use js::rust::{GCMethods, ToString};
@@ -334,7 +333,6 @@ pub fn create_dom_global(cx: *mut JSContext,
                            PrivateValue(Box::into_raw(proto_array) as *const libc::c_void));
 
         let _ac = JSAutoCompartment::new(cx, obj.ptr);
-        JS_InitStandardClasses(cx, obj.handle());
         JS_FireOnNewGlobalObject(cx, obj.handle());
         obj.ptr
     }