field.hpp

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#pragma once
 
namespace flecs
{
 
template <typename T>
inline field<T>::field(iter &iter, int32_t index) {
    *this = iter.field<T>(index);
}
 
template <typename T>
T& field<T>::operator[](size_t index) const {
    ecs_assert(m_data != nullptr, ECS_INVALID_OPERATION, 
        "invalid nullptr dereference of component type %s", 
            _::type_name<T>());
    ecs_assert(index < m_count, ECS_COLUMN_INDEX_OUT_OF_RANGE,
        "index %d out of range for array of component type %s",
            index, _::type_name<T>());
    ecs_assert(!index || !m_is_shared, ECS_INVALID_PARAMETER,
        "non-zero index invalid for shared field of component type %s",
            _::type_name<T>());
    return m_data[index];
}
 
template <typename T>
T& field<T>::operator*() const {
    ecs_assert(m_data != nullptr, ECS_INVALID_OPERATION, 
        "invalid nullptr dereference of component type %s", 
            _::type_name<T>());
    return *m_data;
}
 
template <typename T>
T* field<T>::operator->() const {
    ecs_assert(m_data != nullptr, ECS_INVALID_OPERATION, 
        "invalid nullptr dereference of component type %s", 
            _::type_name<T>());
    ecs_assert(m_data != nullptr, ECS_INVALID_OPERATION, 
        "-> operator invalid for array with >1 element of "
        "component type %s, use [row] instead",
            _::type_name<T>());
    return m_data;
}
 
}