pkgmaker (version 0.10.1)

ExposeAttribute: Exposing Object Attributes

Description

The function ExposeAttribute creates an S3 object that exposes all attributes of any R object, by making them accessible via methods $ and/or $<-.

attr_mode and attr_mode<- get and sets the access mode of ExposeAttribute objects.

Usage

ExposeAttribute(object, ..., .MODE = "rw",
    .VALUE = FALSE)
  attr_mode(x)
  attr_mode(x) <- value

Arguments

object

any R object whose attributes need to be exposed

...

attributes, and optionally their respective values or access permissions. See argument value of attr_mode for details on the way of specifying these.

.MODE

access mode: [object Object],[object Object],[object Object]

.VALUE

logical that indicates if the values of named arguments in ... should be considered as attribute assignments, i.e. that the result object has these attributes set with the specified values. In this case all these attributes will have

x

an ExposeAttribute object

value

replacement value for mode. It can be NULL to remove the ExposeAttribute wrapper, a single character string to define a permission for all atributes (e.g., 'rw' or 'r'), or a list specifying access permission