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Original file line number Diff line number Diff line change
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using System.Collections.Generic;
using System.Numerics;
using Platform.Interfaces;
using Platform.Reflection;
using Platform.Numbers;

namespace Platform.Data.Doublets.Converters
{
public class AddressToUnaryNumberConverter<TLink> : LinksOperatorBase<TLink>, IConverter<TLink> where TLink : IUnsignedNumber<TLink>
{
private static readonly EqualityComparer<TLink> _equalityComparer = EqualityComparer<TLink>.Default;

private readonly IConverter<sbyte, TLink> _powerOf2ToUnaryNumberConverter;

public AddressToUnaryNumberConverter(ILinks<TLink> links, IConverter<sbyte, TLink> powerOf2ToUnaryNumberConverter) : base(links) => _powerOf2ToUnaryNumberConverter = powerOf2ToUnaryNumberConverter;

public TLink Convert(TLink sourceAddress)
{
var number = sourceAddress;
var target = Links.Constants.Null;
for (int i = 0; i < CachedTypeInfo<TLink>.BitsLength; i++)
{
if (_equalityComparer.Equals(ArithmeticHelpers.And(number, Integer<TLink>.One), Integer<TLink>.One))
{
target = _equalityComparer.Equals(target, Links.Constants.Null)
? _powerOf2ToUnaryNumberConverter.Convert((sbyte)i)
: Links.GetOrCreate(_powerOf2ToUnaryNumberConverter.Convert((sbyte)i), target);
}
number = (Integer<TLink>)((ulong)(Integer<TLink>)number >> 1); // Should be BitwiseHelpers.ShiftRight(number, 1);
if (_equalityComparer.Equals(number, default))
{
break;
}
}
return target;
}
}
}
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