include/GenericsLibrary/iterator.nhh


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// Copyright 2026, Amlal El Mahrouss (amlal@nekernel.org)
// Licensed under the Apache License, Version 2.0 (See accompanying
// file LICENSE or copy at http://www.apache.org/licenses/LICENSE-2.0)
// Official repository: https://github.com/ne-foss-org/nectar

#ifndef NECTAR_GL_ITERATOR_NHH
#define NECTAR_GL_ITERATOR_NHH

//@ Rules for iterator implementation:
//@ - _begin is the starting point of the iterator.
//@ - _end is the number of elements to iterate over.
//@ - _size is the total size of the collection.
trait iterator_traits
{
    let _begin := 0;
    let _end := 0;
    let _size := 0;

    let begin();
    let end();
    let size();
};

impl iterator : trait iterator_traits
{
    let init()
    {
        return 0;
    }

    let dispose()
    {
        return 0;
    }

    let begin()
    {
	must_pass(_begin != _end);
	
        let end := _begin;
        return end;
    }

    let end()
    {
	must_pass(_begin != _end);
	
        let end :=_begin;
        end += _end;

        return end;
    }

    let size()
    {
	must_pass(_size > 0);
        return _size;
    }
};

#endif  //@ NECTAR_GL_ITERATOR_NHH