Nothing
.onLoad = function(libname, pkgname) {
options(
tk_time_scale_template = tk_time_scale_template()
)
maybe_register_s3_methods()
}
# nocov start
maybe_register_s3_methods <- function() {
ns <- asNamespace("timetk")
names <- names(ns)
# ----------------------------------------------------------------------------
tidy_names <- c(
grep("tidy.step", names, fixed = TRUE, value = TRUE),
grep("tidy.check", names, fixed = TRUE, value = TRUE)
)
tidy_classes <- gsub("tidy.", "", tidy_names)
for (i in seq_along(tidy_names)) {
class <- tidy_classes[[i]]
s3_register("generics::tidy", class)
}
# ----------------------------------------------------------------------------
tidy_check_names <- grep("tidy.check", names, fixed = TRUE, value = TRUE)
tidy_check_classes <- gsub("tidy.", "", tidy_check_names)
for (i in seq_along(tidy_check_names)) {
class <- tidy_check_classes[[i]]
s3_register("generics::tidy", class)
}
# ----------------------------------------------------------------------------
if (rlang::is_installed("tune (>= 0.1.2)")) {
req_pkgs_names <- grep("^required_pkgs\\.", names, value = TRUE)
req_pkgs_classes <- gsub("required_pkgs.", "", req_pkgs_names)
for (i in seq_along(req_pkgs_names)) {
class <- req_pkgs_classes[[i]]
s3_register("tune::required_pkgs", class)
}
}
# ----------------------------------------------------------------------------
invisible()
}
# vctrs:::s3_register()
s3_register <- function(generic, class, method = NULL) {
stopifnot(is.character(generic), length(generic) == 1)
stopifnot(is.character(class), length(class) == 1)
pieces <- strsplit(generic, "::")[[1]]
stopifnot(length(pieces) == 2)
package <- pieces[[1]]
generic <- pieces[[2]]
caller <- parent.frame()
get_method_env <- function() {
top <- topenv(caller)
if (isNamespace(top)) {
asNamespace(environmentName(top))
} else {
caller
}
}
get_method <- function(method, env) {
if (is.null(method)) {
get(paste0(generic, ".", class), envir = get_method_env())
} else {
method
}
}
method_fn <- get_method(method)
stopifnot(is.function(method_fn))
# Always register hook in case package is later unloaded & reloaded
setHook(
packageEvent(package, "onLoad"),
function(...) {
ns <- asNamespace(package)
# Refresh the method, it might have been updated by `devtools::load_all()`
method_fn <- get_method(method)
registerS3method(generic, class, method_fn, envir = ns)
}
)
# Avoid registration failures during loading (pkgload or regular)
if (!isNamespaceLoaded(package)) {
return(invisible())
}
envir <- asNamespace(package)
# Only register if generic can be accessed
if (exists(generic, envir)) {
registerS3method(generic, class, method_fn, envir = envir)
}
invisible()
}
# nocov end
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