[Davidkramer1999]

Suggested title: Work around Xcode 27 @State linker error

Fixes #240.

Summary

Xcode 27 fails to link Sharing in Debug builds because the @State macro does not emit the initialization expression for the generated __generation storage in Shared and SharedReader.

This changes both types to store State<Int> explicitly instead of using the @State macro:

private var generation = State(wrappedValue: 0)

The existing subscription logic now passes generation directly. This preserves the underlying State<Int> behavior while avoiding the broken macro-generated symbol.

Testing

• Reproduced the two undefined __generation symbols described in Xcode 27.1 Error #240.
• Verified that an application that previously failed to link builds successfully with Xcode 27 after applying this change.
• No public API changes.

Verified with the public Xcode 27 release (27A266a), using Swift 6.4.

[mbrandonw]

Are you sure you are using the most recent version of this library? According to this, this problem was fixed by 2.8.1.

[Davidkramer1999]

You are correct. I have version 2.5.0. When upgrading issue is not present anymore.