Rust API Design: How to Handle Explicit Destructors and the Drop Trait

In Rust, adding an explicit destructor to a type that also implements the Drop trait creates a conflict: Drop receives &mut self, preventing fields from being moved out during cleanup. This means calling a consuming close() method from within drop() triggers a compile-time error, since the value cannot be moved from behind a mutable reference. The problem stems from Drop not owning self, so it cannot delegate ownership to the explicit destructor. There is no perfect fix, but common workarounds include wrapping fields in Option, adding an extra layer of indirection via a nested struct, or using unsafe code. Each approach involves trade-offs in complexity and safety that developers must weigh based on their use case.