base32 refactoring

Core/Collections/DataMap.cs

@@ -1,6 +1,5 @@
 using System.Numerics;
 using System.Runtime.InteropServices;
-using Just.Core.Extensions;
 
 namespace Just.Core.Collections;
 
@@ -122,14 +121,14 @@ public static class DataMap
         where T : unmanaged, IComparisonOperators<T, T, bool>, IEqualityOperators<T, T, bool>
     {
         byte[] headBytes = new byte[HeaderSize];
-        await stream.PopulateAsync(headBytes, cancellationToken);
+        await stream.ReadExactlyAsync(headBytes, cancellationToken);
         var head = MemoryMarshal.Read<Header>(headBytes);
 
         var bodySize = DataMap<T>.ElementSize * head.Width * head.Height;
         if (bodySize != head.BodySize) throw new InvalidOperationException("Can not read DataMap. Element size mismatch.");
 
         byte[] bodyBytes = new byte[bodySize];
-        await stream.PopulateAsync(bodyBytes, cancellationToken);
+        await stream.ReadExactlyAsync(bodyBytes, cancellationToken);
 
         T[] body = MemoryMarshal.Cast<byte, T>(bodyBytes).ToArray();
         return new DataMap<T>((int)head.Width, (int)head.Height, body);
@@ -157,7 +156,7 @@ public static class DataMap
     {
         Header head = default;
         var headSpan = MemoryMarshal.AsBytes(MemoryMarshal.CreateSpan(ref head, 1));
-        stream.Populate(headSpan);
+        stream.ReadExactly(headSpan);
 
         var bodySize = DataMap<T>.ElementSize * head.Width * head.Height;
         if (bodySize != head.BodySize) throw new InvalidOperationException("Can not read DataMap. Element size mismatch.");
@@ -165,7 +164,7 @@ public static class DataMap
         T[] body = new T[bodySize];
         var bodySpan = MemoryMarshal.AsBytes(body.AsSpan());
 
-        stream.Populate(bodySpan);
+        stream.ReadExactly(bodySpan);
         
         return new DataMap<T>((int)head.Width, (int)head.Height, body);
     }