disposeStructWithOpUnslotted<D extends RaylibStruct<D>> method

void disposeStructWithOpUnslotted<D extends RaylibStruct<D>>(D struct, void fn(StructPointer<D> ptr))

Disposes struct, invokes fn with its underlying pointer, and then unslots the temporary allocation backing the pointer, if any.

The allocation is removed from the temporary allocator without freeing its underlying memory. This is intended for APIs where the external call takes responsibility for freeing the memory.

The allocation is unslotted after fn completes, including when fn throws.

Implementation

void disposeStructWithOpUnslotted<D extends RaylibStruct<D>>(
  D struct,
  void Function(StructPointer<D> ptr) fn,
) {
  final ptr = struct.getOpAndDispose();

  try {
    fn(ptr);
  } finally {
    if (ptr.allocationKey case final key?) {
      $.structAlloc<D>()!.Unslot(key);
    }
  }
}