deprecated_binding: Create an Active Binding that Generates a Deprecation Warning
In mlr3: Machine Learning in R - Next Generation

deprecated_binding

R Documentation

Create an Active Binding that Generates a Deprecation Warning

Description

Creates an active binding that generates a warning when accessed, using warn_deprecated(). The active binding will otherwise be read-only.

Usage

deprecated_binding(what, value)

Arguments

`what`	(character(1)) A description of the deprecated binding. Should be of the form `"Class$field"`.
`value`	(any) The value of the active binding. This should be an expression that will be evaluated in the context of the active binding. It could, for example, refer to `self`.

Examples

MyClass = R6::R6Class("MyClass", public = list(),
  active = list(
    foo = deprecated_binding("MyClass$foo", "bar")
  )
)
mco = MyClass$new()
mco$foo

mlr3 documentation built on Oct. 18, 2024, 5:11 p.m.