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Release 5.19.0
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‎CHANGELOG.md‎

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Release Notes
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====
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# 03-03-2025
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<a href="https://www.nuget.org/packages/dotnext/5.19.0">DotNext 5.19.0</a>
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* Added `ConsoleLifetimeTokenSource` that exposes the cancellation token bounded to the console application lifetime
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* Added more pipelined methods to work with `Optional<T>` and `Result<T>` in async code
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<a href="https://www.nuget.org/packages/dotnext.metaprogramming/5.19.0">DotNext.Metaprogramming 5.19.0</a>
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* Updated dependencies
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<a href="https://www.nuget.org/packages/dotnext.unsafe/5.19.0">DotNext.Unsafe 5.19.0</a>
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* Updated dependencies
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<a href="https://www.nuget.org/packages/dotnext.threading/5.19.0">DotNext.Threading 5.19.0</a>
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* Added weight-based cache on top of existing `RandomAccessCache<TKey, TValue>` class
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* Fixed potential race conditions within `RandomAccessCache<TKey, TValue>` class
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* `RandomAccessCache<TKey, TValue, TWeight>` can grow dynamically depending on the number of hash collisions
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<a href="https://www.nuget.org/packages/dotnext.io/5.19.0">DotNext.IO 5.19.0</a>
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* Updated dependencies
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<a href="https://www.nuget.org/packages/dotnext.net.cluster/5.19.0">DotNext.Net.Cluster 5.19.0</a>
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* Reused FNV1a hash implementation
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* Improved WAL performance if `WriteMode.NoFlush` is chosen
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<a href="https://www.nuget.org/packages/dotnext.aspnetcore.cluster/5.19.0">DotNext.AspNetCore.Cluster 5.19.0</a>
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* Updated dependencies
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# 01-20-2025
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<a href="https://www.nuget.org/packages/dotnext/5.18.0">DotNext 5.18.0</a>
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* Introduced `FileUri` class that allows to convert Windows/Unix file names to URI according to `file://` scheme

‎README.md‎

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* [NuGet Packages](https://www.nuget.org/profiles/rvsakno)
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# What's new
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Release Date: 01-20-2025
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Release Date: 03-03-2025
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<a href="https://www.nuget.org/packages/dotnext/5.18.0">DotNext 5.18.0</a>
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* Introduced `FileUri` class that allows to convert Windows/Unix file names to URI according to `file://` scheme
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<a href="https://www.nuget.org/packages/dotnext/5.19.0">DotNext 5.19.0</a>
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* Added `ConsoleLifetimeTokenSource` that exposes the cancellation token bounded to the console application lifetime
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* Added more pipelined methods to work with `Optional<T>` and `Result<T>` in async code
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<a href="https://www.nuget.org/packages/dotnext.metaprogramming/5.18.0">DotNext.Metaprogramming 5.18.0</a>
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* Introduced expression tree for unsigned right shift operator `>>>`
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<a href="https://www.nuget.org/packages/dotnext.unsafe/5.18.0">DotNext.Unsafe 5.18.0</a>
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<a href="https://www.nuget.org/packages/dotnext.metaprogramming/5.19.0">DotNext.Metaprogramming 5.19.0</a>
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* Updated dependencies
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<a href="https://www.nuget.org/packages/dotnext.threading/5.18.1">DotNext.Threading 5.18.1</a>
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* Synchronous `TryAcquire` implemented by `AsyncExclusiveLock` and `AsyncReaderWriterLock` are now implemented in portable way. Previously, WASM target was not supported. Additionally, the method supports lock stealing
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* Improved synchronous support for `RandomAccessCache` class
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<a href="https://www.nuget.org/packages/dotnext.unsafe/5.19.0">DotNext.Unsafe 5.19.0</a>
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* Updated dependencies
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<a href="https://www.nuget.org/packages/dotnext.io/5.18.2">DotNext.IO 5.18.2</a>
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* Fixed issue of `PoolingBufferedStream` class when the stream has buffered bytes in the write buffer and `Position` is set to backward
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* Fixed [256](https://github.com/dotnet/dotNext/issues/256)
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<a href="https://www.nuget.org/packages/dotnext.threading/5.19.0">DotNext.Threading 5.19.0</a>
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* Added weight-based cache on top of existing `RandomAccessCache<TKey, TValue>` class
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* Fixed potential race conditions within `RandomAccessCache<TKey, TValue>` class
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* `RandomAccessCache<TKey, TValue, TWeight>` can grow dynamically depending on the number of hash collisions
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<a href="https://www.nuget.org/packages/dotnext.net.cluster/5.18.0">DotNext.Net.Cluster 5.18.0</a>
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<a href="https://www.nuget.org/packages/dotnext.io/5.19.0">DotNext.IO 5.19.0</a>
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* Updated dependencies
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<a href="https://www.nuget.org/packages/dotnext.aspnetcore.cluster/5.18.0">DotNext.AspNetCore.Cluster 5.18.0</a>
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<a href="https://www.nuget.org/packages/dotnext.net.cluster/5.19.0">DotNext.Net.Cluster 5.19.0</a>
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* Reused FNV1a hash implementation
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* Improved WAL performance if `WriteMode.NoFlush` is chosen
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<a href="https://www.nuget.org/packages/dotnext.aspnetcore.cluster/5.19.0">DotNext.AspNetCore.Cluster 5.19.0</a>
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* Updated dependencies
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Changelog for previous versions located [here](./CHANGELOG.md).

‎azure-pipelines.yml‎

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AotTestFolder: src/DotNext.AotTests
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AotTestProject: $(AotTestFolder)/DotNext.AotTests.csproj
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InternetAccess: false
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DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
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DOTNET_SKIP_FIRST_TIME_EXPERIENCE: false
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isMain: $[eq(variables['Build.SourceBranch'], 'refs/heads/master')]
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trigger:
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- master

‎src/DotNext.Benchmarks/BitwiseHashCodeBenchmark.cs‎

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using System;
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using System.Collections.Generic;
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namespace DotNext.Benchmarks;
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namespace DotNext;
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[SimpleJob(runStrategy: RunStrategy.Throughput, launchCount: 1)]
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[Orderer(SummaryOrderPolicy.Declared)]

‎src/DotNext.Benchmarks/DotNext.Benchmarks.csproj‎

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<RootNamespace>DotNext</RootNamespace>
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<StartupObject>DotNext.Program</StartupObject>
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<IsPackable>false</IsPackable>
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<Version>5.17.0</Version>
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<Version>5.19.0</Version>
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<Authors>.NET Foundation and Contributors</Authors>
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<Product>.NEXT Family of Libraries</Product>
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<Description>Various benchmarks demonstrating performance aspects of .NEXT extensions</Description>

‎src/DotNext.Benchmarks/Program.cs‎

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internal static class Program
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{
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private static IConfig BenchConfig => DefaultConfig.Instance.AddJob(Job.Default.AsDefault()
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.WithArguments(new[] { new MsBuildArgument("/p:Optimize=true") })
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.WithArguments([new MsBuildArgument("/p:Optimize=true")])
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.WithCustomBuildConfiguration("Bench"));
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static void Main(string[] args)

‎src/DotNext.Benchmarks/Runtime/Caching/RandomAccessCacheReadBenchmark.cs‎

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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Threading.Tasks;
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using BenchmarkDotNet.Attributes;
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using BenchmarkDotNet.Engines;
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using BenchmarkDotNet.Order;
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namespace DotNext.Runtime.Caching;
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[SimpleJob(runStrategy: RunStrategy.Throughput, launchCount: 1)]
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[Orderer(SummaryOrderPolicy.FastestToSlowest)]
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public class RandomAccessCacheReadBenchmark
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{
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private const string Key = "a";
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private const int Value = 42;
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private const int Capacity = 2;
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private Dictionary<string, int> dictionary;
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private ConcurrentDictionary<string, int> concurrentDictionary;
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private RandomAccessCache<string, int> cache;
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[GlobalSetup(Target = nameof(GetValueFromDictionary))]
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public void SetupDictionary()
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{
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dictionary = new(Capacity)
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{
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{Key, Value},
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};
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}
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[GlobalSetup(Target = nameof(GetValueFromConcurrentDictionary))]
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public void SetupConcurrentDictionary()
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{
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concurrentDictionary = new(15, Capacity);
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}
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[GlobalSetup(Target = nameof(GetValueFromCache))]
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public async Task SetupCache()
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{
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cache = new(Capacity);
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using var session = await cache.ChangeAsync(Key);
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session.SetValue(Value);
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}
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[Benchmark(Baseline = true)]
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public int GetValueFromDictionary()
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=> dictionary.GetValueOrDefault(Key, 0);
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[Benchmark]
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public int GetValueFromConcurrentDictionary() => concurrentDictionary.GetValueOrDefault(Key, 0);
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[Benchmark]
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public int GetValueFromCache()
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{
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int result;
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if (cache.TryRead(Key, out var session))
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{
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result = session.Value;
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Dispose(ref session);
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}
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else
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{
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result = 0;
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}
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return result;
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static void Dispose<T>(ref T obj)
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where T : struct, IDisposable => obj.Dispose();
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}
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}

‎src/DotNext.IO/DotNext.IO.csproj‎

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<Authors>.NET Foundation and Contributors</Authors>
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<Company />
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<Product>.NEXT Family of Libraries</Product>
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<VersionPrefix>5.18.2</VersionPrefix>
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<VersionPrefix>5.19.0</VersionPrefix>
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<VersionSuffix></VersionSuffix>
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<AssemblyName>DotNext.IO</AssemblyName>
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<PackageLicenseExpression>MIT</PackageLicenseExpression>

‎src/DotNext.IO/IO/DecodingTextReader.cs‎

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{
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var result = 0;
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for (int maxBytes = encoding.GetMaxByteCount(output.Length), bytesConsumed, charsProduced; !sequence.IsEmpty && !output.IsEmpty; maxBytes -= bytesConsumed, result += charsProduced)
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for (var maxBytes = encoding.GetMaxByteCount(output.Length); !sequence.IsEmpty && !output.IsEmpty;)
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{
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var input = sequence.FirstSpan;
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decoder.Convert(input, output, maxBytes <= input.Length, out bytesConsumed, out charsProduced, out _);
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decoder.Convert(input, output, maxBytes <= input.Length, out var bytesConsumed, out var charsProduced, out _);
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sequence = sequence.Slice(bytesConsumed);
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output = output.Slice(charsProduced);
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maxBytes -= bytesConsumed;
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result += charsProduced;
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return result;

‎src/DotNext.Metaprogramming/DotNext.Metaprogramming.csproj‎

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<ImplicitUsings>true</ImplicitUsings>
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<IsAotCompatible>false</IsAotCompatible>
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<Features>nullablePublicOnly</Features>
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<VersionPrefix>5.18.0</VersionPrefix>
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<VersionPrefix>5.19.0</VersionPrefix>
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<VersionSuffix></VersionSuffix>
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<Authors>.NET Foundation</Authors>
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<Product>.NEXT Family of Libraries</Product>

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