Checks inherits from S3 class using
!isS4(x) && inherits(x, class)
Value
The chk_
function throws an informative error if the test fails or
returns the original object if successful so it can used in pipes.
The vld_
function returns a flag indicating whether the test was met.
See also
For more details about the use of this function,
please read the article
vignette("chk-families")
.
Other id_checkers:
chk_data()
,
chk_is()
,
chk_s4_class()
Examples
# chk_s3_class
chk_s3_class(1, "numeric")
try(chk_s3_class(getClass("MethodDefinition"), "classRepresentation"))
#> Error in eval(expr, envir) :
#> `getClass("MethodDefinition")` must inherit from S3 class 'classRepresentation'.
# vld_s3_class
vld_s3_class(numeric(0), "numeric")
#> [1] TRUE
vld_s3_class(getClass("MethodDefinition"), "classRepresentation")
#> [1] FALSE