本文整理汇总了C++中StringRef::isNull方法的典型用法代码示例。如果您正苦于以下问题：C++ StringRef::isNull方法的具体用法？C++ StringRef::isNull怎么用？C++ StringRef::isNull使用的例子？那么恭喜您, 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StringRef的用法示例。
在下文中一共展示了StringRef::isNull方法的2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: getDirectoryItems
void ServerSideBrowserModel::getDirectoryItems(const Dir& dir,
const xmms2::Expected<xmms2::List<xmms2::Dict>>& list)
{
if (list.isError()) {
directoryLoadFailed(dir, list.error().toString());
return;
}
m_dir = dir;
m_items.clear();
// Explicitly add .. item
if (!m_dir.isRootPath()) {
m_items.emplace_back("..", true);
}
for (auto it = list->getIterator(); it.isValid(); it.next()) {
bool ok = false;
xmms2::Dict dict = it.value(&ok);
if (NCXMMS2_UNLIKELY(!ok))
continue;
StringRef path = dict.value<StringRef>("path");
if (NCXMMS2_UNLIKELY(path.isNull()))
continue;
if (NCXMMS2_UNLIKELY(path == "." || path == ".."))
continue;
bool isDir = dict.value<int>("isdir", 0);
m_items.emplace_back(xmms2::getFileNameFromUrl(xmms2::decodeUrl(path.c_str())), isDir);
}
std::sort(m_items.begin(), m_items.end());
reset();
directoryLoaded(m_dir);
}示例2: __defineOwnProperty__
bool Object::__defineOwnProperty__(ExecutionContext *ctx, uint index, const StringRef member, const Property &p, PropertyAttributes attrs)
{
// clause 5
if (attrs.isEmpty())
return true;
Property *current;
PropertyAttributes cattrs;
if (!member.isNull()) {
current = propertyAt(index);
cattrs = internalClass->propertyData[index];
} else {
current = arrayData->getProperty(index);
cattrs = arrayData->attributes(index);
}
// clause 6
if (p.isSubset(attrs, *current, cattrs))
return true;
// clause 7
if (!cattrs.isConfigurable()) {
if (attrs.isConfigurable())
goto reject;
if (attrs.hasEnumerable() && attrs.isEnumerable() != cattrs.isEnumerable())
goto reject;
}
// clause 8
if (attrs.isGeneric() || current->value.isEmpty())
goto accept;
// clause 9
if (cattrs.isData() != attrs.isData()) {
// 9a
if (!cattrs.isConfigurable())
goto reject;
if (cattrs.isData()) {
// 9b
cattrs.setType(PropertyAttributes::Accessor);
cattrs.clearWritable();
if (member.isNull()) {
// need to convert the array and the slot
initSparseArray();
setArrayAttributes(index, cattrs);
current = arrayData->getProperty(index);
}
current->setGetter(0);
current->setSetter(0);
} else {
// 9c
cattrs.setType(PropertyAttributes::Data);
cattrs.setWritable(false);
if (member.isNull()) {
// need to convert the array and the slot
setArrayAttributes(index, cattrs);
current = arrayData->getProperty(index);
}
current->value = Primitive::undefinedValue();
}
} else if (cattrs.isData() && attrs.isData()) { // clause 10
if (!cattrs.isConfigurable() && !cattrs.isWritable()) {
if (attrs.isWritable() || !current->value.sameValue(p.value))
goto reject;
}
} else { // clause 10
Q_ASSERT(cattrs.isAccessor() && attrs.isAccessor());
if (!cattrs.isConfigurable()) {
if (!p.value.isEmpty() && current->value.val != p.value.val)
goto reject;
if (!p.set.isEmpty() && current->set.val != p.set.val)
goto reject;
}
}
accept:
current->merge(cattrs, p, attrs);
if (!member.isNull()) {
InternalClass::changeMember(this, member.getPointer(), cattrs);
} else {
setArrayAttributes(index, cattrs);
}
if (cattrs.isAccessor())
hasAccessorProperty = 1;
return true;
reject:
if (ctx->strictMode)
ctx->throwTypeError();
return false;
}