// Phase 285A0.1: WeakRef basic test
// SSOT: docs/reference/language/lifecycle.md:179 - weak(x)/weak_to_strong()
//
// Test: weak(x) creates WeakRef, weak_to_strong() returns Box when alive
// Note: Full drop semantics test deferred (needs GC/scope analysis)
// VM: PASS expected
// LLVM: SKIP (Phase 285A1)

box SomeBox {
    x
}

static box Main {
    main() {
        local x = new SomeBox()
        x.x = 42
        local w = weak(x)

        // Test 1: weak_to_strong should succeed while x is alive
        local y = w.weak_to_strong()
        if y == null {
            print("ng: weak_to_strong returned null while x alive")
            return 1
        }

        // Test 2: verify weak_to_strong returns same box
        if y.x != 42 {
            print("ng: weak_to_strong value differs from original")
            return 1
        }

        print("ok: weak and weak_to_strong work correctly")
        return 0
    }
}