Optimize AnyView implementation (#70)

Kyle-Ye · web-flow · commit fa83a718f487 · 2024-04-07T21:06:07.000+08:00
diff --git a/Sources/OpenSwiftUI/Core/View/ViewOutputs.swift b/Sources/OpenSwiftUI/Core/View/ViewOutputs.swift
@@ -41,7 +41,7 @@ public struct _ViewOutputs {
             key.visitKey(&visitor)
         }
         if let layoutComputer = $layoutComputer {
-            layoutComputer.identifier.source = (layoutComputer.graph.graphHost() as! ViewGraph).$defaultLayoutComputer.identifier
+            layoutComputer.identifier.source = unsafeDowncast(layoutComputer.graph.graphHost(), to: ViewGraph.self).$defaultLayoutComputer.identifier
         }
         #endif
     }
diff --git a/Sources/OpenSwiftUI/View/View/AnyView.swift b/Sources/OpenSwiftUI/View/View/AnyView.swift
@@ -184,7 +184,7 @@ private struct AnyViewContainer: StatefulRule, AsyncAttribute {
                 newInfo = oldInfo
             } else {
                 eraseItem(info: oldInfo)
-                newInfo = makeItem(view.storage, uniqueId: oldInfo.uniqueID + 1)
+                newInfo = makeItem(view.storage, uniqueId: oldInfo.uniqueID &+ 1)
             }
         } else {
             newInfo = makeItem(view.storage, uniqueId: 0)

Original file line number	Diff line number	Diff line change
`@@ -41,7 +41,7 @@ public struct _ViewOutputs {`
`41`	`41`	`key.visitKey(&visitor)`
`42`	`42`	`}`
`43`	`43`	`if let layoutComputer = $layoutComputer {`
`44`		`- layoutComputer.identifier.source = (layoutComputer.graph.graphHost() as! ViewGraph).$defaultLayoutComputer.identifier`
	`44`	`+ layoutComputer.identifier.source = unsafeDowncast(layoutComputer.graph.graphHost(), to: ViewGraph.self).$defaultLayoutComputer.identifier`
`45`	`45`	`}`
`46`	`46`	`#endif`
`47`	`47`	`}`
Original file line number	Diff line number	Diff line change
`@@ -184,7 +184,7 @@ private struct AnyViewContainer: StatefulRule, AsyncAttribute {`
`184`	`184`	`newInfo = oldInfo`
`185`	`185`	`} else {`
`186`	`186`	`eraseItem(info: oldInfo)`
`187`		`- newInfo = makeItem(view.storage, uniqueId: oldInfo.uniqueID + 1)`
	`187`	`+ newInfo = makeItem(view.storage, uniqueId: oldInfo.uniqueID &+ 1)`
`188`	`188`	`}`
`189`	`189`	`} else {`
`190`	`190`	`newInfo = makeItem(view.storage, uniqueId: 0)`