add conditional conformance

benpious · benpious · commit 1073fce31447 · 2022-08-31T19:04:06.000-07:00
diff --git a/stdlib/public/core/KeyPath.swift b/stdlib/public/core/KeyPath.swift
@@ -3738,8 +3738,10 @@ fileprivate func dynamicLibraryAddress<Base, Leaf>(
     }
 }
 
+@available(SwiftStdLib 5.7, *)
 extension AnyKeyPath: CustomDebugStringConvertible {
         
+    @available(SwiftStdLib 5.7, *)
     public var debugDescription: String {
         var description = "\\\(String(describing: Self.rootType))"
         return withBuffer {

Original file line number	Diff line number	Diff line change
`@@ -3738,8 +3738,10 @@ fileprivate func dynamicLibraryAddress<Base, Leaf>(`
`3738`	`3738`	`}`
`3739`	`3739`	`}`
`3740`	`3740`
	`3741`	`+@available(SwiftStdLib 5.7, *)`
`3741`	`3742`	`extension AnyKeyPath: CustomDebugStringConvertible {`
`3742`	`3743`
	`3744`	`+ @available(SwiftStdLib 5.7, *)`
`3743`	`3745`	`public var debugDescription: String {`
`3744`	`3746`	`var description = "\\\(String(describing: Self.rootType))"`
`3745`	`3747`	`return withBuffer {`