hakorune/apps/tests/phase285_weak_basic.hako

// Phase 285W-Syntax-0: WeakRef basic test with weak x syntax
// SSOT: docs/reference/language/lifecycle.md:179 - weak <expr>/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 object (identity)
        if y.x != 42 {
            print("ng: weak_to_strong returned different object (expected x=42)")
            return 1
        }

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