| foreignReference {RSPython} | R Documentation |
This function creates a reference from an S object and optionally registers it with the foreign reference manager. This reference can then be used to identify the S object in a foreign system, passing it as either an argument in a function call to that foreign system or as the result of a call to an S function from that system. The reference can be given additional information such as a name by which to identify it, one or more target classes in the foreign system that it should masquerade as.
foreignReference(obj, id=NULL, className=NULL, targetClasses=NULL, register=T)
obj |
the S object which the new reference is to identify |
id |
an optional name to use to identify this reference and value. This should be unique and if omitted will be generated by the reference manager so that it is unique. It can be specified here to provide a convenient way to refer to an object and also to simplify garbage collection. |
className |
? |
targetClasses |
the names of any classes in the foreign system that this reference should ``implement'' when it is instantiated in this system. This is a way of controlling the conversion of the reference to an object in the foreign system. |
register |
a logical value indicating whether the reference and object should be registered with the current foreign reference manager. |
An object of class
NamedRReference or
AnonymousRReference depending on whether
id is specified or not.
The object contains the following fields
id |
the name for the reference |
value |
the object or value (obj in the call) associated with this reference |
className |
|
targetClasses |
the value of targetClasses in the call |
type |
the type of the object being referenced, computed by typeof |
classes |
the class(es) of the object being referenced, computed by class |
Duncan Temple Lang
http://www.omegahat.org/RSPython, http://www.python.org
referenceManager
.Python
.PythonNew
.PythonMethod