bool
FieldSetterImpl(JSContext *cx, JS::CallArgs args)
{
const JS::Value &thisv = args.thisv();
MOZ_ASSERT(ValueHasISupportsPrivate(thisv));
JS::Rooted<JSObject*> thisObj(cx, &thisv.toObject());
// We should be in the compartment of |this|. If we got here via nativeCall,
// |this| is not same-compartment with |callee|, and it's possible via
// asymmetric security semantics that |args.calleev()| is actually a security
// wrapper. In this case, we know we want to do an unsafe unwrap, and
// InstallXBLField knows how to handle cross-compartment pointers.
bool installed = false;
JS::Rooted<JSObject*> callee(cx, js::UncheckedUnwrap(&args.calleev().toObject()));
JS::Rooted<jsid> id(cx);
if (!InstallXBLField(cx, callee, thisObj, &id, &installed)) {
return false;
}
if (installed) {
if (!::JS_SetPropertyById(cx, thisObj, id, args.get(0))) {
return false;
}
}
args.rval().setUndefined();
return true;
}
bool
XPC_WN_CallMethod(JSContext* cx, unsigned argc, Value* vp)
{
JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
MOZ_ASSERT(JS_TypeOfValue(cx, args.calleev()) == JSTYPE_FUNCTION, "bad function");
RootedObject funobj(cx, &args.callee());
RootedObject obj(cx, JS_THIS_OBJECT(cx, vp));
if (!obj)
return false;
obj = FixUpThisIfBroken(obj, funobj);
XPCCallContext ccx(cx, obj, funobj, JSID_VOIDHANDLE, args.length(),
args.array(), vp);
XPCWrappedNative* wrapper = ccx.GetWrapper();
THROW_AND_RETURN_IF_BAD_WRAPPER(cx, wrapper);
RefPtr<XPCNativeInterface> iface;
XPCNativeMember* member;
if (!XPCNativeMember::GetCallInfo(funobj, &iface, &member))
return Throw(NS_ERROR_XPC_CANT_GET_METHOD_INFO, cx);
ccx.SetCallInfo(iface, member, false);
return XPCWrappedNative::CallMethod(ccx);
}
