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# nocov start --- compat-zeallot --- 2020-11-23
# This drop-in file implements a simple version of zeallot::`%<-%`.
# Please find the most recent version in rlang's repository.
`%<-%` <- function(lhs, value) {
lhs <- substitute(lhs)
env <- caller_env()
if (!is_call(lhs, "c")) {
abort("The left-hand side of `%<-%` must be a call to `c()`.")
}
vars <- as.list(lhs[-1])
if (length(value) != length(vars)) {
abort("The left- and right-hand sides of `%<-%` must be the same length.")
}
for (i in seq_along(vars)) {
var <- vars[[i]]
if (!is_symbol(var)) {
abort(paste0("Element ", i, " of the left-hand side of `%<-%` must be a symbol."))
}
env[[as_string(var)]] <- value[[i]]
}
invisible(value)
}
# nocov end
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