S7_inherits {S7} | R Documentation |
Does this object inherit from an S7 class?
Description
-
S7_inherits()
returnsTRUE
orFALSE
. -
check_is_S7()
throws an error ifx
isn't the specifiedclass
.
Usage
S7_inherits(x, class = NULL)
check_is_S7(x, class = NULL, arg = deparse(substitute(x)))
Arguments
x |
An object |
class |
An S7 class or |
arg |
Argument name used in error message. |
Value
-
S7_inherits()
returns a singleTRUE
orFALSE
. -
check_is_S7()
returns nothing; it's called for its side-effects.
Note
Starting with R 4.3.0, base::inherits()
can accept an S7 class as
the second argument, supporting usage like inherits(x, Foo)
.
Examples
Foo1 <- new_class("Foo1")
Foo2 <- new_class("Foo2")
S7_inherits(Foo1(), Foo1)
check_is_S7(Foo1())
check_is_S7(Foo1(), Foo1)
S7_inherits(Foo1(), Foo2)
try(check_is_S7(Foo1(), Foo2))
if (getRversion() >= "4.3.0")
inherits(Foo1(), Foo1)
[Package S7 version 0.2.0 Index]