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#ifndef SLANG_CORE_ARRAY_VIEW_H
#define SLANG_CORE_ARRAY_VIEW_H
#include "slang-common.h"
namespace Slang
{
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!! ConstArrayView !!!!!!!!!!!!!!!!!!!!!!!!!!!!!
template<typename T>
class ConstArrayView
{
public:
const T* begin() const { return m_buffer; }
const T* end() const { return m_buffer + m_count; }
inline Index getCount() const { return m_count; }
inline const T& operator [](Index idx) const
{
SLANG_ASSERT(idx >= 0 && idx < m_count);
return m_buffer[idx];
}
inline const T* getBuffer() const { return m_buffer; }
template<typename T2>
Index indexOf(const T2& val) const
{
for (Index i = 0; i < m_count; i++)
{
if (m_buffer[i] == val)
return i;
}
return -1;
}
template<typename T2>
Index lastIndexOf(const T2& val) const
{
for (Index i = m_count - 1; i >= 0; i--)
{
if (m_buffer[i] == val)
return i;
}
return -1;
}
template<typename Func>
Index findFirstIndex(const Func& predicate) const
{
for (Index i = 0; i < m_count; i++)
{
if (predicate(m_buffer[i]))
return i;
}
return -1;
}
template<typename Func>
Index findLastIndex(const Func& predicate) const
{
for (Index i = m_count - 1; i >= 0; i--)
{
if (predicate(m_buffer[i]))
return i;
}
return -1;
}
ConstArrayView() :
m_buffer(nullptr),
m_count(0)
{
}
ConstArrayView(const T* buffer, Index count) :
m_buffer(const_cast<T*>(buffer)),
m_count(count)
{
}
protected:
ConstArrayView(T* buffer, Index count) :
m_buffer(buffer),
m_count(count)
{
}
T* m_buffer; ///< Note that this isn't const, as is used for derived class ArrayView also
Index m_count;
};
template<typename T>
ConstArrayView<T> makeConstArrayView(const T& obj)
{
return ConstArrayView<T>(&obj, 1);
}
template<typename T>
ConstArrayView<T> makeConstArrayView(const T* buffer, Index count)
{
return ConstArrayView<T>(buffer, count);
}
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ArrayView !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
template<typename T>
class ArrayView: public ConstArrayView<T>
{
public:
typedef ConstArrayView<T> Super;
using Super::m_buffer;
using Super::m_count;
using Super::begin;
T* begin() { return m_buffer; }
using Super::end;
T* end() { return m_buffer + m_count; }
using Super::operator[];
inline T& operator [](Index idx)
{
SLANG_ASSERT(idx >= 0 && idx < m_count);
return m_buffer[idx];
}
using Super::getBuffer;
inline T* getBuffer() { return m_buffer; }
ArrayView() : Super() {}
ArrayView(T* buffer, Index size) :Super(buffer, size) {}
};
template<typename T>
ArrayView<T> makeArrayView(T& obj)
{
return ArrayView<T>(&obj, 1);
}
template<typename T>
ArrayView<T> makeArrayView(T* buffer, Index count)
{
return ArrayView<T>(buffer, count);
}
}
#endif
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