Displaying 1 result from an estimated 1 matches for "anyreferenceclassname".
2011 May 04
1
General "nil" reference class object
...ULL)
An object of class "Bar"
<environment: 0x10392c4a0>
> is.null(Bar$new(foo=NULL)$foo)
[1] TRUE
Other languages allow things like "MyClass object = null", and it
seems to me that it would be helpful to have a value which will always
give TRUE for "is(object,<AnyReferenceClassName>)", but will
specifically indicate a nil reference. One possible ad-hoc solution is
to define the "empty" object of a base class to be "nil" (see below),
but it seems like it would be better to have a value specifically
designed for this purpose.
> nilObject <- Fo...