inline JSPropertyNameIterator::JSPropertyNameIterator(ExecState* exec, PropertyNameArrayData* propertyNameArrayData, size_t numCacheableSlots)
: JSCell(exec->globalData(), exec->globalData().propertyNameIteratorStructure.get())
, m_numCacheableSlots(numCacheableSlots)
, m_jsStringsSize(propertyNameArrayData->propertyNameVector().size())
, m_jsStrings(adoptArrayPtr(new WriteBarrier<Unknown>[m_jsStringsSize]))
{
PropertyNameArrayData::PropertyNameVector& propertyNameVector = propertyNameArrayData->propertyNameVector();
for (size_t i = 0; i < m_jsStringsSize; ++i)
m_jsStrings[i].set(exec->globalData(), this, jsOwnedString(exec, propertyNameVector[i].ustring()));
}
JSValue* JSPropertyNameIterator::next(ExecState* exec)
{
while (m_position != m_end) {
if (m_object->hasProperty(exec, *m_position))
return jsOwnedString(exec, (*m_position++).ustring());;
m_position++;
}
invalidate();
return 0;
}
inline AJPropertyNameIterator::AJPropertyNameIterator(ExecState* exec, PropertyNameArrayData* propertyNameArrayData, size_t numCacheableSlots)
: AJCell(exec->globalData().propertyNameIteratorStructure.get())
, m_cachedStructure(0)
, m_numCacheableSlots(numCacheableSlots)
, m_jsStringsSize(propertyNameArrayData->propertyNameVector().size())
, m_jsStrings(new AJValue[m_jsStringsSize])
{
PropertyNameArrayData::PropertyNameVector& propertyNameVector = propertyNameArrayData->propertyNameVector();
for (size_t i = 0; i < m_jsStringsSize; ++i)
m_jsStrings[i] = jsOwnedString(exec, propertyNameVector[i].ustring());
}
// FIXME: Use the enumeration cache.
EncodedJSValue JSC_HOST_CALL objectConstructorKeys(ExecState* exec)
{
if (!exec->argument(0).isObject())
return throwVMError(exec, createTypeError(exec, ASCIILiteral("Requested keys of a value that is not an object.")));
PropertyNameArray properties(exec);
asObject(exec->argument(0))->methodTable()->getOwnPropertyNames(asObject(exec->argument(0)), exec, properties, ExcludeDontEnumProperties);
JSArray* keys = constructEmptyArray(exec, 0);
size_t numProperties = properties.size();
for (size_t i = 0; i < numProperties; i++)
keys->push(exec, jsOwnedString(exec, properties[i].string()));
return JSValue::encode(keys);
}
// FIXME: Use the enumeration cache.
JSValue JSC_HOST_CALL objectConstructorKeys(ExecState* exec, JSObject*, JSValue, const ArgList& args)
{
if (!args.at(0).isObject())
return throwError(exec, TypeError, "Requested keys of a value that is not an object.");
PropertyNameArray properties(exec);
asObject(args.at(0))->getOwnPropertyNames(exec, properties);
JSArray* keys = constructEmptyArray(exec);
size_t numProperties = properties.size();
for (size_t i = 0; i < numProperties; i++)
keys->push(exec, jsOwnedString(exec, properties[i].ustring()));
return keys;
}
// FIXME: Use the enumeration cache.
EncodedJSValue JSC_HOST_CALL objectConstructorGetOwnPropertyNames(ExecState* exec)
{
if (!exec->argument(0).isObject())
return throwVMError(exec, createTypeError(exec, "Requested property names of a value that is not an object."));
PropertyNameArray properties(exec);
asObject(exec->argument(0))->getOwnPropertyNames(exec, properties, IncludeDontEnumProperties);
JSArray* names = constructEmptyArray(exec);
size_t numProperties = properties.size();
for (size_t i = 0; i < numProperties; i++)
names->push(exec, jsOwnedString(exec, properties[i].ustring()));
return JSValue::encode(names);
}
JSValue jsOwnedStringOrNull(ExecState* exec, const String& s)
{
if (s.isNull())
return jsNull();
return jsOwnedString(exec, stringToUString(s));
}