Optimize overflow for StackLayout.makeChildren()

pookjw · pookjw · commit c8809c0c77ef · 2026-01-10T01:38:16.000+09:00
diff --git a/Sources/OpenSwiftUICore/Layout/Stack/StackLayout.swift b/Sources/OpenSwiftUICore/Layout/Stack/StackLayout.swift
@@ -130,7 +130,7 @@ struct StackLayout {
                 if let uniformSpacing = header.uniformSpacing {
                     distanceToPrevious = uniformSpacing
                 } else {
-                    let previousSpacing = proxies[index-1].spacing
+                    let previousSpacing = proxies[index&-1].spacing
                     let spacing = subview.spacing
                     distanceToPrevious = previousSpacing.distance(to: spacing, along: header.majorAxis)
                 }

Original file line number	Diff line number	Diff line change
`@@ -130,7 +130,7 @@ struct StackLayout {`
`130`	`130`	`if let uniformSpacing = header.uniformSpacing {`
`131`	`131`	`distanceToPrevious = uniformSpacing`
`132`	`132`	`} else {`
`133`		`- let previousSpacing = proxies[index-1].spacing`
	`133`	`+ let previousSpacing = proxies[index&-1].spacing`
`134`	`134`	`let spacing = subview.spacing`
`135`	`135`	`distanceToPrevious = previousSpacing.distance(to: spacing, along: header.majorAxis)`
`136`	`136`	`}`