refactor: use file-scoped namespaces (#1237)

Switch to [file-scoped namespaces](https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/proposals/csharp-10.0/file-scoped-namespace).

Author: vbreuss

benchmarks/TestableIO.System.IO.Abstractions.Benchmarks/FileSystemAbstractionBenchmarks.cs

@@ -4,46 +4,45 @@
 using BenchmarkDotNet.Attributes;
 using BenchmarkDotNet.Order;
 
-namespace System.IO.Abstractions.Benchmarks
+namespace System.IO.Abstractions.Benchmarks;
+
+//[SimpleJob(launchCount: 3, warmupCount: 10, targetCount: 30)]
+[RPlotExporter]
+[MemoryDiagnoser]
+[Orderer(summaryOrderPolicy: SummaryOrderPolicy.FastestToSlowest)]
+[RankColumn]
+public class FileSystemAbstractionBenchmarks
 {
-    //[SimpleJob(launchCount: 3, warmupCount: 10, targetCount: 30)]
-    [RPlotExporter]
-    [MemoryDiagnoser]
-    [Orderer(summaryOrderPolicy: SummaryOrderPolicy.FastestToSlowest)]
-    [RankColumn]
-    public class FileSystemAbstractionBenchmarks
-    {
-        #region Members
-        /// <summary>
-        /// FileSupport type to avoid counting object initialisation on the benchmark
-        /// </summary>
-        private FileSupport _fileSupport;
-        private DirectorySupport _directorySupport;
-        #endregion
+    #region Members
+    /// <summary>
+    /// FileSupport type to avoid counting object initialisation on the benchmark
+    /// </summary>
+    private FileSupport _fileSupport;
+    private DirectorySupport _directorySupport;
+    #endregion
 
-        #region CTOR's
-        public FileSystemAbstractionBenchmarks()
-        {
-            // Initialize file support
-            _fileSupport = new FileSupport();
-            _directorySupport = new DirectorySupport();
-        }
-        #endregion
+    #region CTOR's
+    public FileSystemAbstractionBenchmarks()
+    {
+        // Initialize file support
+        _fileSupport = new FileSupport();
+        _directorySupport = new DirectorySupport();
+    }
+    #endregion
 
-        #region File IsFile
-        [Benchmark]
-        public void FileExists_DotNet() => FileSupportStatic.IsFile(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile));
+    #region File IsFile
+    [Benchmark]
+    public void FileExists_DotNet() => FileSupportStatic.IsFile(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile));
 
-        [Benchmark]
-        public void FileExists_Abstraction() => _fileSupport.IsFile(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile));
-        #endregion
+    [Benchmark]
+    public void FileExists_Abstraction() => _fileSupport.IsFile(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile));
+    #endregion
 
-        #region Directory Exists
-        [Benchmark]
-        public void DirectoryExists_DotNet() => DirectorySupportStatic.Exists(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile));
+    #region Directory Exists
+    [Benchmark]
+    public void DirectoryExists_DotNet() => DirectorySupportStatic.Exists(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile));
 
-        [Benchmark]
-        public void DirectoryExists_Abstraction() => _directorySupport.Exists(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile));
-        #endregion
-    }
-}
+    [Benchmark]
+    public void DirectoryExists_Abstraction() => _directorySupport.Exists(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile));
+    #endregion
+}

benchmarks/TestableIO.System.IO.Abstractions.Benchmarks/MockFileSystemBenchmarks.cs

@@ -4,24 +4,23 @@
 using System.Linq;
 using XFS = System.IO.Abstractions.TestingHelpers.MockUnixSupport;
 
-namespace System.IO.Abstractions.Benchmarks
-{
-    [RPlotExporter]
-    [MemoryDiagnoser]
-    public class MockFileSystemBenchmarks
-    {
-        private readonly Dictionary<string, MockFileData> testData = CreateTestData();
+namespace System.IO.Abstractions.Benchmarks;
 
-        private static Dictionary<string, MockFileData> CreateTestData()
-        {
-            var filesCount = 100000;
-            var maxDirectoryDepth = 8;
-            return Enumerable.Range(0, filesCount).ToDictionary(
-                i => XFS.Path(@$"C:\{string.Join(@"\", Enumerable.Range(0, i % maxDirectoryDepth + 1).Select(i => i.ToString()))}\{i}.bin"),
-                i => new MockFileData(i.ToString()));
-        }
+[RPlotExporter]
+[MemoryDiagnoser]
+public class MockFileSystemBenchmarks
+{
+    private readonly Dictionary<string, MockFileData> testData = CreateTestData();
 
-        [Benchmark]
-        public MockFileSystem MockFileSystem_Constructor() => new MockFileSystem(testData);
+    private static Dictionary<string, MockFileData> CreateTestData()
+    {
+        var filesCount = 100000;
+        var maxDirectoryDepth = 8;
+        return Enumerable.Range(0, filesCount).ToDictionary(
+            i => XFS.Path(@$"C:\{string.Join(@"\", Enumerable.Range(0, i % maxDirectoryDepth + 1).Select(i => i.ToString()))}\{i}.bin"),
+            i => new MockFileData(i.ToString()));
     }
-}
+
+    [Benchmark]
+    public MockFileSystem MockFileSystem_Constructor() => new MockFileSystem(testData);
+}

benchmarks/TestableIO.System.IO.Abstractions.Benchmarks/Program.cs

@@ -1,13 +1,12 @@
-namespace System.IO.Abstractions.Benchmarks
-{
-    using BenchmarkDotNet.Running;
-    using System.Reflection;
+namespace System.IO.Abstractions.Benchmarks;
+
+using BenchmarkDotNet.Running;
+using System.Reflection;
 
-    class Program
+class Program
+{
+    public static void Main(string[] args)
     {
-        public static void Main(string[] args)
-        {
-            BenchmarkRunner.Run(typeof(Program).Assembly);
-        }
+        BenchmarkRunner.Run(typeof(Program).Assembly);
     }
-}
+}

benchmarks/TestableIO.System.IO.Abstractions.Benchmarks/Support/DirectorySupport.cs

@@ -2,93 +2,92 @@
 using System.Collections.Generic;
 using System.Text;
 
-namespace System.IO.Abstractions.Benchmarks.Support
+namespace System.IO.Abstractions.Benchmarks.Support;
+
+public class DirectorySupport
 {
-    public class DirectorySupport
+    #region Members
+    private IFileSystem _fileSystem;
+    #endregion
+
+    #region CTOR's
+    public DirectorySupport(IFileSystem fileSystem)
     {
-        #region Members
-        private IFileSystem _fileSystem;
-        #endregion
+        _fileSystem = fileSystem;
+    }
 
-        #region CTOR's
-        public DirectorySupport(IFileSystem fileSystem)
-        {
-            _fileSystem = fileSystem;
-        }
+    public DirectorySupport() : this(new FileSystem())
+    {
+        // Default implementation for FileSystem
+    }
+    #endregion
 
-        public DirectorySupport() : this(new FileSystem())
-        {
-            // Default implementation for FileSystem
-        }
-        #endregion
+    #region Methods
+    public bool IsDirectory(string path)
+    {
+        return _fileSystem.Directory.Exists(path);
+    }
 
-        #region Methods
-        public bool IsDirectory(string path)
-        {
-            return _fileSystem.Directory.Exists(path);
-        }
+    private string GetRandomTempDirectory()
+    {
+        return Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
+    }
+
+    public string CreateRandomDirectory()
+    {
+        var randomPath = this.GetRandomTempDirectory();
+        _fileSystem.Directory.CreateDirectory(randomPath);
+        return randomPath;
+    }
 
-        private string GetRandomTempDirectory()
+    private void DirectoryCopy(string sourceDirName, string destDirName, bool copySubDirs = true, bool overwrite = true)
+    {
+        // Get the subdirectories for the specified directory.
+        var dir = _fileSystem.DirectoryInfo.New(sourceDirName);
+        if (!dir.Exists)
         {
-            return Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
+            throw new DirectoryNotFoundException(
+                "Source directory does not exist or could not be found: "
+                + sourceDirName);
         }
 
-        public string CreateRandomDirectory()
+        var dirs = dir.GetDirectories();
+        // If the destination directory doesn't exist, create it.
+        if (!_fileSystem.Directory.Exists(destDirName))
         {
-            var randomPath = this.GetRandomTempDirectory();
-            _fileSystem.Directory.CreateDirectory(randomPath);
-            return randomPath;
+            _fileSystem.Directory.CreateDirectory(destDirName);
         }
 
-        private void DirectoryCopy(string sourceDirName, string destDirName, bool copySubDirs = true, bool overwrite = true)
+        // Get the files in the directory and copy them to the new location.
+        var files = dir.GetFiles();
+        foreach (var file in files)
         {
-            // Get the subdirectories for the specified directory.
-            var dir = _fileSystem.DirectoryInfo.New(sourceDirName);
-            if (!dir.Exists)
-            {
-                throw new DirectoryNotFoundException(
-                    "Source directory does not exist or could not be found: "
-                    + sourceDirName);
-            }
-
-            var dirs = dir.GetDirectories();
-            // If the destination directory doesn't exist, create it.
-            if (!_fileSystem.Directory.Exists(destDirName))
-            {
-                _fileSystem.Directory.CreateDirectory(destDirName);
-            }
-
-            // Get the files in the directory and copy them to the new location.
-            var files = dir.GetFiles();
-            foreach (var file in files)
-            {
-                string temppath = Path.Combine(destDirName, file.Name);
-                file.CopyTo(temppath, overwrite);
-            }
-
-            // If copying subdirectories, copy them and their contents to new location.
-            if (copySubDirs)
-            {
-                foreach (var subdir in dirs)
-                {
-                    string temppath = Path.Combine(destDirName, subdir.Name);
-                    DirectoryCopy(subdir.FullName, temppath, copySubDirs);
-                }
-            }
+            string temppath = Path.Combine(destDirName, file.Name);
+            file.CopyTo(temppath, overwrite);
         }
 
-        public void CreateIfNotExists(string directory)
+        // If copying subdirectories, copy them and their contents to new location.
+        if (copySubDirs)
         {
-            if (!_fileSystem.Directory.Exists(directory))
+            foreach (var subdir in dirs)
             {
-                _fileSystem.Directory.CreateDirectory(directory);
+                string temppath = Path.Combine(destDirName, subdir.Name);
+                DirectoryCopy(subdir.FullName, temppath, copySubDirs);
             }
         }
+    }
 
-        public bool Exists(string directory)
+    public void CreateIfNotExists(string directory)
+    {
+        if (!_fileSystem.Directory.Exists(directory))
         {
-            return _fileSystem.Directory.Exists(directory);
+            _fileSystem.Directory.CreateDirectory(directory);
         }
-        #endregion
     }
-}
+
+    public bool Exists(string directory)
+    {
+        return _fileSystem.Directory.Exists(directory);
+    }
+    #endregion
+}