Add DefaultBufferCapacity constant (FileTreeEnumerable/FileTreeAsyncEnumerable)

Author: rameel

Ramstack.Globbing/Traversal/FileTreeAsyncEnumerable.cs

@@ -84,10 +84,10 @@ IAsyncEnumerator<TResult> IAsyncEnumerable<TResult>.GetAsyncEnumerator(Cancellat
 
     private async IAsyncEnumerable<TResult> EnumerateAsync(CancellationTokenSource? source, [EnumeratorCancellation] CancellationToken cancellationToken)
     {
-        var chars = ArrayPool<char>.Shared.Rent(512);
-
         try
         {
+            var chars = ArrayPool<char>.Shared.Rent(FileTreeEnumerable<TEntry, TResult>.DefaultBufferCapacity);
+
             var queue = new Queue<(TEntry Directory, string Path)>();
             queue.Enqueue((_directory, ""));
 
@@ -110,10 +110,11 @@ private async IAsyncEnumerable<TResult> EnumerateAsync(CancellationTokenSource?
                             yield return ResultSelector(entry);
                 }
             }
+
+            ArrayPool<char>.Shared.Return(chars);
         }
         finally
         {
-            ArrayPool<char>.Shared.Return(chars);
             source?.Dispose();
         }
     }

Ramstack.Globbing/Traversal/FileTreeEnumerable.cs

@@ -14,6 +14,11 @@ public sealed class FileTreeEnumerable<TEntry, TResult> : IEnumerable<TResult>
 {
     private readonly TEntry _directory;
 
+    /// <summary>
+    /// The default capacity of the character buffer for paths rented from the shared array pool.
+    /// </summary>
+    internal const int DefaultBufferCapacity = 512;
+
     /// <summary>
     /// Gets or sets the glob patterns to include in the enumeration.
     /// </summary>
@@ -72,7 +77,7 @@ IEnumerator IEnumerable.GetEnumerator() =>
 
     private IEnumerable<TResult> Enumerate()
     {
-        var chars = ArrayPool<char>.Shared.Rent(512);
+        var chars = ArrayPool<char>.Shared.Rent(DefaultBufferCapacity);
 
         var queue = new Queue<(TEntry Directory, string Path)>();
         queue.Enqueue((_directory, ""));