#ifndef APIArray_h
#define APIArray_h
#include "APIObject.h"
#include <wtf/Forward.h>
#include <wtf/IteratorAdaptors.h>
#include <wtf/IteratorRange.h>
#include <wtf/PassRefPtr.h>
#include <wtf/Vector.h>
namespace API {
class Array final : public ObjectImpl<Object::Type::Array> {
private:
template <class T>
struct IsTypePredicate {
bool operator()(const RefPtr<Object>& object) const { return object->type() == T::APIType; }
};
template <class T>
struct GetObjectTransform {
const T* operator()(const RefPtr<Object>& object) const { return static_cast<const T*>(object.get()); }
};
template <typename T>
using ElementsOfTypeRange = WTF::IteratorRange<WTF::TransformIterator<GetObjectTransform<T>, WTF::FilterIterator<IsTypePredicate<T>, Vector<RefPtr<Object>>::const_iterator>>>;
public:
static PassRefPtr<Array> create();
static PassRefPtr<Array> create(Vector<RefPtr<Object>> elements);
static PassRefPtr<Array> createStringArray(const Vector<WTF::String>&);
Vector<WTF::String> toStringVector();
virtual ~Array();
template<typename T>
T* at(size_t i) const
{
if (!m_elements[i] || m_elements[i]->type() != T::APIType)
return nullptr;
return static_cast<T*>(m_elements[i].get());
}
Object* at(size_t i) const { return m_elements[i].get(); }
size_t size() const { return m_elements.size(); }
const Vector<RefPtr<Object>>& elements() const { return m_elements; }
Vector<RefPtr<Object>>& elements() { return m_elements; }
template<typename T>
ElementsOfTypeRange<T> elementsOfType() const
{
return WTF::makeIteratorRange(
WTF::makeTransformIterator(GetObjectTransform<T>(), WTF::makeFilterIterator(IsTypePredicate<T>(), m_elements.begin(), m_elements.end())),
WTF::makeTransformIterator(GetObjectTransform<T>(), WTF::makeFilterIterator(IsTypePredicate<T>(), m_elements.end(), m_elements.end()))
);
}
private:
explicit Array(Vector<RefPtr<Object>> elements);
Vector<RefPtr<Object>> m_elements;
};
}
#endif // APIArray_h