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#' @rdname Truth
#' @export
is_identical_to_false <- function(x, allow_attributes = FALSE,
.xname = get_name_in_parent(x))
{
if(allow_attributes)
{
x <- strip_attributes(x)
}
if(!identical(FALSE, x))
{
msg <- gettextf(
"%s is not identical to FALSE; its value is %s.",
.xname,
safe_deparse(x),
domain = "R-assertive.base"
)
return(false(msg))
}
TRUE
}
#' @rdname Truth
#' @export
is_identical_to_na <- function(x, allow_attributes = FALSE,
.xname = get_name_in_parent(x))
{
if(allow_attributes)
{
x <- strip_attributes(x)
}
if(!identical(NA, x) &&
!identical(NA_real_, x) &&
!identical(NA_character_, x) &&
!identical(NA_integer_, x) &&
!identical(NA_complex_, x))
{
msg <- gettextf(
"%s is not identical to NA; its value is %s.",
.xname,
safe_deparse(x),
domain = "R-assertive.base"
)
return(false(msg))
}
TRUE
}
#' @rdname Truth
#' @export
is_identical_to_true <- function(x, allow_attributes = FALSE,
.xname = get_name_in_parent(x))
{
if(allow_attributes)
{
x <- strip_attributes(x)
}
if(!identical(TRUE, x))
{
msg <- gettextf(
"%s is not identical to TRUE; its value is %s.",
.xname,
safe_deparse(x),
domain = "R-assertive.base"
)
return(false(msg))
}
TRUE
}
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