本文整理汇总了C++中CacheIRWriter::guardProto方法的典型用法代码示例。如果您正苦于以下问题：C++ CacheIRWriter::guardProto方法的具体用法？C++ CacheIRWriter::guardProto怎么用？C++ CacheIRWriter::guardProto使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CacheIRWriter的用法示例。
在下文中一共展示了CacheIRWriter::guardProto方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: IsCacheableDOMProxy
static void
GeneratePrototypeGuards(CacheIRWriter& writer, JSObject* obj, JSObject* holder, ObjOperandId objId)
{
// The guards here protect against the effects of JSObject::swap(). If the
// prototype chain is directly altered, then TI will toss the jitcode, so we
// don't have to worry about it, and any other change to the holder, or
// adding a shadowing property will result in reshaping the holder, and thus
// the failure of the shape guard.
MOZ_ASSERT(obj != holder);
if (obj->hasUncacheableProto()) {
// If the shape does not imply the proto, emit an explicit proto guard.
writer.guardProto(objId, obj->getProto());
}
JSObject* pobj = IsCacheableDOMProxy(obj)
? obj->getTaggedProto().toObjectOrNull()
: obj->getProto();
if (!pobj)
return;
while (pobj != holder) {
if (pobj->hasUncacheableProto()) {
ObjOperandId protoId = writer.loadObject(pobj);
if (pobj->isSingleton()) {
// Singletons can have their group's |proto| mutated directly.
writer.guardProto(protoId, pobj->getProto());
} else {
writer.guardGroup(protoId, pobj->group());
}
}
pobj = pobj->getProto();
}
}