Nothing
# nocov start
include_nn <- function(x, y, name) {
if (!is.null(y)) x[[name]] <- tibble::as_tibble(y)
x
}
has_thing <- function(x, thing) {
thing %in% names(x) && tibble::is_tibble(x[[thing]])
}
has_vertex <- function(x) {
has_thing(x, "vertex")
}
has_edge <- function(x) {
has_thing(x, "edge")
}
has_path <- function(x) {
has_thing(x, "path")
}
has_object <- function(x) {
has_thing(x, "object")
}
silicate <- function(vertex = NULL, edge = NULL, path = NULL, object = NULL, model = NULL) {
x <- model %||% list()
x <- include_nn(x, vertex, "vertex")
x <- include_nn(x, edge, "edge")
x <- include_nn(x, path, "path")
x <- include_nn(x, object, "object")
if (length(x) == 0L) warning("empty silicate shell")
structure(x, class = "sc")
}
# nocov end
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