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APIArray.h
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112 lines (93 loc) · 3.99 KB
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/*
* Copyright (C) 2010, 2013 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef APIArray_h
#define APIArray_h
#include "APIObject.h"
#include <wtf/Forward.h>
#include <wtf/IteratorAdaptors.h>
#include <wtf/IteratorRange.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 Ref<Array> create();
static Ref<Array> create(Vector<RefPtr<Object>>&&);
static Ref<Array> createStringArray(const Vector<WTF::String>&);
Vector<WTF::String> toStringVector();
Ref<Array> copy();
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()))
);
}
template<typename MatchFunction>
unsigned removeAllMatching(const MatchFunction& matchFunction)
{
return m_elements.removeAllMatching(matchFunction);
}
template<typename T, typename MatchFunction>
unsigned removeAllOfTypeMatching(const MatchFunction& matchFunction)
{
return m_elements.removeAllMatching([&] (const RefPtr<Object>& object) -> bool {
if (object->type() != T::APIType)
return false;
return matchFunction(static_pointer_cast<T>(object));
});
}
private:
explicit Array(Vector<RefPtr<Object>>&& elements)
: m_elements(WTFMove(elements))
{
}
Vector<RefPtr<Object>> m_elements;
};
} // namespace API
#endif // APIArray_h