gdext.internal

Pointers as plain Long addresses. Scala Native heap-allocates a box for a Ptr passed to (or returned from) a method that is not inlined, so the hot path hands addresses across such calls and rebuilds the Ptr locally.

Control over the Scala Native garbage collector (Boehm, stop-the-world, single-threaded — the GC the sbt plugin always configures).

Engine objects never depend on the GC: their lifetimes follow Godot (scene tree, free(), owned RefCounted references), so collecting, pausing or resuming the GC never frees a Godot object. What the GC reclaims is plain Scala heap: wrappers, closures, strings, collections, math values.

Typical game use: Gc.collect() at a loading screen or level transition, and Gc.paused { ... } around a short burst that must not stutter. Reached as gdext.api.Gc.