Generates Delayed Version of an Expression

A Delayed version of a function may be called to generate Delayed objects

delayed(expr, sequential = FALSE, expect_error = FALSE, timeout = NULL)

delayed_fun(fun, sequential = FALSE, expect_error = FALSE)

Arguments

expr	expression to delay
sequential	if TRUE, never parallelize this task
expect_error	if TRUE, pass error to downstream tasks instead of
timeout	specify a time limit for computation halting computation
fun	function to delay

Examples

d <- delayed(3 + 4)
d$compute()
#> [1] 7
adder <- function(x, y) {
  x + y
}
delayed_adder <- delayed_fun(adder)
z <- delayed_adder(3, 4)
z$compute()
#> [1] 7