fix: detect modern KVO runtime subclasses

steipete · steipete · commit 510ab22f0fa8 · 2026-04-27T11:34:52.000+01:00
diff --git a/Sources/InterposeKit/InterposeKit.swift b/Sources/InterposeKit/InterposeKit.swift
@@ -52,7 +52,7 @@ final public class Interpose {
 
     // This is based on observation, there is no documented way
     private func isKVORuntimeGeneratedClass(_ klass: AnyClass) -> Bool {
-        NSStringFromClass(klass).hasPrefix("NSKVO")
+        String(cString: class_getName(klass)).contains("NSKVONotifying_")
     }
 
     /// Initializes an instance of Interpose for a specific class.

Original file line number	Diff line number	Diff line change
`@@ -52,7 +52,7 @@ final public class Interpose {`
`52`	`52`
`53`	`53`	`// This is based on observation, there is no documented way`
`54`	`54`	`private func isKVORuntimeGeneratedClass(_ klass: AnyClass) -> Bool {`
`55`		`- NSStringFromClass(klass).hasPrefix("NSKVO")`
	`55`	`+ String(cString: class_getName(klass)).contains("NSKVONotifying_")`
`56`	`56`	`}`
`57`	`57`
`58`	`58`	`/// Initializes an instance of Interpose for a specific class.`