Debug.Log Extensions
Documentation (1.1.9)

◆ LogError() [13/16]

static void Debug.LogError ( [NotNull] Expression< Func< object >>  classMember,
Object  context = null 

Logs a warning message to the Console consisting of the name and value of classMember a class member.

public void SetActivePage(Page value) { activePage = value; Debug.LogError(()=>activePage, this); }

classMemberExpression pointing to a class member whose name and value will be logged.
contextObject to which the message applies.

If you pass a context argument that Object will be momentarily highlighted in the Hierarchy window when you click the log message in the Console.