reduce additional allocations by making ZRange a readonly struct

h3xds1nz · h3xds1nz · commit 451653296e6c · 2024-08-11T12:36:26.000+02:00
diff --git a/src/Microsoft.DotNet.Wpf/src/PresentationFramework/MS/Internal/Annotations/Component/AdornerPresentationContext.cs b/src/Microsoft.DotNet.Wpf/src/PresentationFramework/MS/Internal/Annotations/Component/AdornerPresentationContext.cs
@@ -579,7 +579,7 @@ private static int ComponentToAdorner(int zOrder, int level)
         /// This is to control the relationships with TextSelection which lives in the same
         /// AdornerLayer. Will be removed when more flexible Z-ordering mechanism is available
         /// </summary>
-        private sealed class ZRange
+        private readonly struct ZRange
         {
             public ZRange(int min, int max)
             {

Original file line number	Diff line number	Diff line change
`@@ -579,7 +579,7 @@ private static int ComponentToAdorner(int zOrder, int level)`
`579`	`579`	`/// This is to control the relationships with TextSelection which lives in the same`
`580`	`580`	`/// AdornerLayer. Will be removed when more flexible Z-ordering mechanism is available`
`581`	`581`	`/// </summary>`
`582`		`- private sealed class ZRange`
	`582`	`+ private readonly struct ZRange`
`583`	`583`	`{`
`584`	`584`	`public ZRange(int min, int max)`
`585`	`585`	`{`