More code cleanup, merge interface implementations

Service/DirectoryMetadata.cs → Lib/DirectoryMetadata.cs

@@ -1,11 +1,14 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using WinVfs.VirtualFilesystem;
 
-namespace WinVfs.Service;
+namespace WinVfs.VirtualFilesystem;
 
-internal sealed class DirectoryMetadata : IDirectoryMetadata
+/// <summary>
+/// Default implementation of <see cref="IDirectoryMetadata"/> with an O(N) lookup in <see cref="GetEntryOrNull"/>
+/// and a non-thread-safe writeable collection of entries.
+/// </summary>
+public sealed class DirectoryMetadata : IDirectoryMetadata
 {
     public DirectoryMetadata(string relativeBasePath, bool exists = true)
     {
@@ -23,4 +26,4 @@ public DirectoryMetadata(string relativeBasePath, bool exists = true)
     {
         return WritableEntries.FirstOrDefault(e => e.Name.Equals(fileOrDirName, StringComparison.OrdinalIgnoreCase));
     }
-}
+}

Service/FileSystemEntry.cs → Lib/FileSystemEntry.cs

@@ -1,9 +1,11 @@
 using System;
-using WinVfs.VirtualFilesystem;
 
-namespace WinVfs.Service;
+namespace WinVfs.VirtualFilesystem;
 
-internal sealed class FileSystemEntry : IFileSystemEntry
+/// <summary>
+/// Default implementation of <see cref="IFileSystemEntry"/>
+/// </summary>
+public sealed class FileSystemEntry : IFileSystemEntry
 {
     public FileSystemEntry(string dirName)
     {
@@ -23,4 +25,4 @@ public FileSystemEntry(string fileName, long fileSize, DateTime? lastUpdateTimeU
     public long FileSize { get; }
     public string Name { get; }
     public DateTime? LastUpdateTimeUtc { get; }
-}
+}