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checkR6

Check if an argument is a R6 class

Description

Check if an argument is a R6 class

Usage

checkR6(
  x,
  classes = NULL,
  ordered = FALSE,
  cloneable = NULL,
  public = NULL,
  private = NULL,
  null.ok = FALSE
)

check_r6(
  x,
  classes = NULL,
  ordered = FALSE,
  cloneable = NULL,
  public = NULL,
  private = NULL,
  null.ok = FALSE
)

assertR6(
  x,
  classes = NULL,
  ordered = FALSE,
  cloneable = NULL,
  public = NULL,
  private = NULL,
  null.ok = FALSE,
  .var.name = vname(x),
  add = NULL
)

assert_r6(
  x,
  classes = NULL,
  ordered = FALSE,
  cloneable = NULL,
  public = NULL,
  private = NULL,
  null.ok = FALSE,
  .var.name = vname(x),
  add = NULL
)

testR6(
  x,
  classes = NULL,
  ordered = FALSE,
  cloneable = NULL,
  public = NULL,
  private = NULL,
  null.ok = FALSE
)

test_r6(
  x,
  classes = NULL,
  ordered = FALSE,
  cloneable = NULL,
  public = NULL,
  private = NULL,
  null.ok = FALSE
)

expect_r6(
  x,
  classes = NULL,
  ordered = FALSE,
  cloneable = NULL,
  public = NULL,
  private = NULL,
  null.ok = FALSE,
  info = NULL,
  label = vname(x)
)

Arguments

x

[any]
Object to check.
classes

[character]
Class names to check for inheritance with inherits. x must inherit from all specified classes.
ordered

[logical(1)]
Expect x to be specialized in provided order. Default is FALSE.
cloneable

[logical(1)]
If TRUE, check that x has a clone method. If FALSE, ensure that x is not cloneable.
public

[character]
Names of expected public slots. This includes active bindings.
private

[character]
Names of expected private slots.
null.ok

[logical(1)]
If set to TRUE, x may also be NULL. In this case only a type check of x is performed, all additional checks are disabled.
.var.name

[character(1)]
Name of the checked object to print in assertions. Defaults to the heuristic implemented in vname.
add

[AssertCollection]
Collection to store assertion messages. See AssertCollection.
info

[character(1)]
Extra information to be included in the message for the testthat reporter. See expect_that.
label

[character(1)]
Name of the checked object to print in messages. Defaults to the heuristic implemented in vname.

Value

Depending on the function prefix: If the check is successful, the functions assertClass/assert_class return x invisibly, whereas checkClass/check_class and testClass/test_class return TRUE. If the check is not successful, assertClass/assert_class throws an error message, testClass/test_class returns FALSE, and checkClass returns a string with the error message. The function expect_class always returns an expectation.

See Also

Other classes: checkClass(), checkMultiClass()

Examples

library(R6)
generator = R6Class("Bar",
  public = list(a = 5),
  private = list(b = 42),
  active = list(c = function() 99)
)
x = generator$new()
checkR6(x, "Bar", cloneable = TRUE, public = "a")
checkmate

Fast and Versatile Argument Checks

v2.0.0
BSD_3_clause + file LICENSE
Authors
Michel Lang [cre, aut] (<https://orcid.org/0000-0001-9754-0393>), Bernd Bischl [ctb]
Initial release

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