Replace abs with max when calculating capacity (#694)

pookjw · web-flow · commit 7240b218ac5b · 2026-01-01T23:26:36.000+08:00
diff --git a/Sources/OpenSwiftUICore/Layout/Dynamic/DynamicContainer.swift b/Sources/OpenSwiftUICore/Layout/Dynamic/DynamicContainer.swift
@@ -384,7 +384,7 @@ struct DynamicContainerInfo<Adapter>: StatefulRule, AsyncAttribute, ObservedAttr
             }
             precondition(info.indexMap.count == inusedCount, "DynamicLayoutItem identifiers must be unique.")
             if hasDepth {
-                let capacity = abs(removedCount != 0 ? validCount + inusedCount : validCount)
+                let capacity = max(removedCount != 0 ? validCount + inusedCount : validCount, 0)
                 var displayMap: [UInt32] = []
                 displayMap.reserveCapacity(capacity)
                 for index in 0 ..< validCount {

Original file line number	Diff line number	Diff line change
`@@ -384,7 +384,7 @@ struct DynamicContainerInfo<Adapter>: StatefulRule, AsyncAttribute, ObservedAttr`
`384`	`384`	`}`
`385`	`385`	`precondition(info.indexMap.count == inusedCount, "DynamicLayoutItem identifiers must be unique.")`
`386`	`386`	`if hasDepth {`
`387`		`- let capacity = abs(removedCount != 0 ? validCount + inusedCount : validCount)`
	`387`	`+ let capacity = max(removedCount != 0 ? validCount + inusedCount : validCount, 0)`
`388`	`388`	`var displayMap: [UInt32] = []`
`389`	`389`	`displayMap.reserveCapacity(capacity)`
`390`	`390`	`for index in 0 ..< validCount {`