m02-resource

Use Rc for shared ownership in single-threaded scenarios and Arc when thread safety is required. This Skill analyzes concurrency needs to guide the correct smart pointer selection for managing shared data.

Prevent memory leaks from reference cycles by using Weak smart pointers to break strong references. This Skill provides error-prevention strategies for safe memory lifecycle management.

The best way to choose a smart pointer is evaluating single ownership with Box, shared ownership with Rc or Arc, and interior mutability with RefCell or Cell based on your specific data lifecycle.

RefCell panics at runtime when borrowing rules are violated, such as multiple mutable borrows occurring simultaneously. This Skill helps implement correct borrowing strategies to avoid these panics.

Implement RAII by selecting appropriate smart pointers like Box, Rc, or Arc to manage heap-allocated data and ensure deterministic resource cleanup. This Skill facilitates correct memory lifecycle management through detailed decision flows.

Cell is not suitable for multi-threaded environments because it lacks thread safety. This Skill guides selecting thread-safe alternatives like Arc combined with Mutex for concurrent interior mutability.