Fix async enumerator not disposed properly

alex-kulakov · alex-kulakov · commit 78cff7d801e4 · 2026-02-27T12:00:48.000+05:00
diff --git a/Orm/Xtensive.Orm/Orm/QueryResult.cs b/Orm/Xtensive.Orm/Orm/QueryResult.cs
@@ -54,9 +54,10 @@ public IEnumerator<TItem> GetEnumerator()
     public async IAsyncEnumerable<TItem> AsAsyncEnumerable()
     {
       EnsureResultsAlive();
-      var enumerator = reader.AsAsyncEnumerator();
-      while (await enumerator.MoveNextAsync().ConfigureAwait(false)) {
-        yield return enumerator.Current;
+      await using (var enumerator = reader.AsAsyncEnumerator()) {
+        while (await enumerator.MoveNextAsync().ConfigureAwait(false)) {
+          yield return enumerator.Current;
+        }
       }
     }
 

Original file line number	Diff line number	Diff line change
`@@ -54,9 +54,10 @@ public IEnumerator<TItem> GetEnumerator()`
`54`	`54`	`public async IAsyncEnumerable<TItem> AsAsyncEnumerable()`
`55`	`55`	`{`
`56`	`56`	`EnsureResultsAlive();`
`57`		`- var enumerator = reader.AsAsyncEnumerator();`
`58`		`- while (await enumerator.MoveNextAsync().ConfigureAwait(false)) {`
`59`		`- yield return enumerator.Current;`
	`57`	`+ await using (var enumerator = reader.AsAsyncEnumerator()) {`
	`58`	`+ while (await enumerator.MoveNextAsync().ConfigureAwait(false)) {`
	`59`	`+ yield return enumerator.Current;`
	`60`	`+ }`
`60`	`61`	`}`
`61`	`62`	`}`
`62`	`63`