assert_logical <- function(x, name = deparse(substitute(x))) {
if (!is.logical(x)) {
stop(sprintf("%s must be logical", name), call. = FALSE)
}
}
assert_character <- function(x, name = deparse(substitute(x))) {
if (!is.character(x)) {
stop(sprintf("%s must be character", name), call. = FALSE)
}
}
assert_scalar <- function(x, name = deparse(substitute(x))) {
if (length(x) != 1L) {
stop(sprintf("%s must be a scalar", name), call. = FALSE)
}
}
assert_scalar_logical <- function(x, name = deparse(substitute(x))) {
assert_scalar(x, name)
assert_logical(x, name)
assert_nonmissing(x, name)
}
assert_scalar_character <- function(x, name = deparse(substitute(x))) {
assert_scalar(x, name)
assert_character(x, name)
}
assert_nonmissing <- function(x, name = deparse(substitute(x))) {
if (any(is.na(x))) {
stop(sprintf("%s must not be NA", name), call. = FALSE)
}
}
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