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/**

 * @file

 * @short This file is included by qstackcontextbase_p.h.

 * If you need includes in this file, put them in qstackcontextbase_p.h, outside of the namespace.

 */

template<typename TSuperClass>

StackContextBase<TSuperClass>::StackContextBase() : m_rangeVariables(10),

                                                    m_expressionVariables(10),

                                                    m_positionIterators(5),

                                                    m_itemCacheCells(5),

                                                    m_itemSequenceCacheCells(5)

{

    /* The m_* containers are initialized with default sizes. Estimated guesses on usage patterns. */

}

template<typename TSuperClass>

StackContextBase<TSuperClass>::StackContextBase(const DynamicContext::Ptr &prevContext)

                                                : TSuperClass(prevContext),

                                                  m_rangeVariables(10),

                                                  m_expressionVariables(10),

                                                  m_positionIterators(5),

                                                  m_itemCacheCells(5),

                                                  m_itemSequenceCacheCells(5)

{

    Q_ASSERT(prevContext);

}

template<typename TSuperClass>

ItemCacheCell &StackContextBase<TSuperClass>::itemCacheCell(const VariableSlotID slot)

{

    if(slot >= m_itemCacheCells.size())

        m_itemCacheCells.resize(qMax(slot + 1, m_itemCacheCells.size()));

    return m_itemCacheCells[slot];

}

template<typename TSuperClass>

ItemSequenceCacheCell::Vector &StackContextBase<TSuperClass>::itemSequenceCacheCells(const VariableSlotID slot)

{

    if(slot >= m_itemSequenceCacheCells.size())

        m_itemSequenceCacheCells.resize(qMax(slot + 1, m_itemSequenceCacheCells.size()));

    return m_itemSequenceCacheCells;

}

template<typename TSuperClass>

Item StackContextBase<TSuperClass>::rangeVariable(const VariableSlotID slot) const

{

    Q_ASSERT(slot < m_rangeVariables.size());

    Q_ASSERT(m_rangeVariables.at(slot));

    return m_rangeVariables.at(slot);

}

template<typename TSuperClass>

Expression::Ptr StackContextBase<TSuperClass>::expressionVariable(const VariableSlotID slot) const

{

    Q_ASSERT(slot < m_expressionVariables.size());

    Q_ASSERT(m_expressionVariables.at(slot));

    return m_expressionVariables.at(slot);

}

template<typename TSuperClass>

Item::Iterator::Ptr StackContextBase<TSuperClass>::positionIterator(const VariableSlotID slot) const

{

    Q_ASSERT(slot < m_positionIterators.size());

    return m_positionIterators.at(slot);

}

template<typename TSuperClass>

template<typename VectorType, typename UnitType>

inline

void StackContextBase<TSuperClass>::setSlotVariable(const VariableSlotID slot,

                                                    const UnitType &newValue,

                                                    VectorType &container) const

{

    if(slot < container.size())

        container.replace(slot, newValue);

    else

    {

        container.resize(slot + 1);

        container.replace(slot, newValue);

    }

}

template<typename TSuperClass>

void StackContextBase<TSuperClass>::setRangeVariable(const VariableSlotID slot,

                                                     const Item &newValue)

{

    setSlotVariable(slot, newValue, m_rangeVariables);

}

template<typename TSuperClass>

void StackContextBase<TSuperClass>::setExpressionVariable(const VariableSlotID slot,

                                                          const Expression::Ptr &newValue)

{

    setSlotVariable(slot, newValue, m_expressionVariables);

}

template<typename TSuperClass>

void StackContextBase<TSuperClass>::setPositionIterator(const VariableSlotID slot,

                                                        const Item::Iterator::Ptr &newValue)

{

    setSlotVariable(slot, newValue, m_positionIterators);

}

template<typename TSuperClass>

DynamicContext::TemplateParameterHash &StackContextBase<TSuperClass>::templateParameterStore()

{

    return m_templateParameterStore;

}