The Standard Library as Architecture

• Raw pointers represent the ABI fact that Godot supplies object and value addresses; safe wrappers validate before exposing behavior.
• PhantomData attaches class, ownership, and non-Send meaning without changing the pointer layout.
• TypeId and HashMap support class and dynamic-trait registries.
• AtomicBool and atomics record initialization/hot-reload state shared with callbacks.
• Cell stores isolate/main-thread lifecycle state; mutex-backed globals are used for registration paths and fail fast on unexpected concurrency.
• catch_unwind prevents a panic from leaving a Rust-controlled trampoline.
• Future, Poll, Waker, and thread-local storage implement the local async bridge.
• guard Drop releases dynamic borrows even on early returns and panics.

The standard library supplies mechanisms; the binding’s real work is assigning them semantics matching Godot’s ownership contract.