R6 class with generic reusable functionality

R6 class with generic (abstract) new cloning functionality.

Public fields

object_generator

Class object generator used to create new clones, particularly for user inheritance.

attached

A list of dynamically attached attributes (name-value pairs).

Methods

Public methods

• GenericClass$new()

• GenericClass$new_clone()

• GenericClass$clone()

---

Method new()

Initialization method saves an object generator for new cloning.

Usage

GenericClass$new(object_generator = NULL, ...)

Arguments

object_generator

Class object generator used to create new clones, particularly for user inheritance.

...

Parameters passed individually (ignored).

---

Method new_clone()

Creates a new (re-initialized) object of the current (inherited) object class with optionally passed parameters.

Usage

GenericClass$new_clone(...)

Arguments

...

Parameters passed via the inherited class constructor (defined in initialize and run via new).

Returns

New object of the current (inherited) class.

---

Method clone()

The objects of this class are cloneable with this method.

Usage

GenericClass$clone(deep = FALSE)

Arguments

deep

Whether to make a deep clone.

Examples

object1 <- GenericClass$new()
class(object1)
#> [1] "GenericClass" "R6"          
# Referencing
object_ref <- object1
object_ref$attached$a <- 1
object1$attached
#> $a
#> [1] 1
#> 
# Cloning
object2 <- object1$clone()
object2$attached$b <- 2
object1$attached
#> $a
#> [1] 1
#> 
object2$attached
#> $a
#> [1] 1
#> 
#> $b
#> [1] 2
#> 
# New cloning
object3 <- object1$new_clone()
object3$attached$c <- 3
object1$attached
#> $a
#> [1] 1
#> 
object3$attached
#> $c
#> [1] 3
#>