locationReference property
A reference that allows the client to request the location where the new value is declared. For example, if the logged value is function pointer, the adapter may be able to look up the function's location. This should be present only if the adapter is likely to be able to resolve the location.
This reference shares the same lifetime as the variablesReference. See
'Lifetime of Object References' in the Overview section for details.
Implementation
final int? locationReference;