RefOrNull2 method

P RefOrNull2(
  1. num? o
)
inherited

Writes o into slot '2' and returns its pointer, or returns nullptr if o is null.

Use this instead of Ref2 when the C API uses a null pointer to signal "no value".

Implementation

P RefOrNull2(X? o) => o == null ? nullptrFactory() : Ref2(o);